Key takeaways
- Sunclass Airlines is a Danish leisure airline based near Copenhagen with bases in Denmark, Sweden, Norway and Finland.
- Codes: IATA DK, ICAO VKG, callsign “VIKING” – carried over from the Thomas Cook era.
- The roots go back to 1994: Premiair emerged from Conair (Denmark) and Scanair (Sweden), and later the aircraft were called MyTravel and Thomas Cook.
- All-Airbus fleet: A321 and A321neo for the Canary Islands and the Mediterranean, A330-900neo for long-haul.
- Sunclass flies for its own tour operators Ving, Spies and Tjäreborg within the Nordic Leisure Travel Group.
Contents
Profile
| IATA code | DK |
|---|---|
| ICAO code | VKG |
| Callsign | VIKING |
| Hubs | CPH, ARN, OSL |
| Business model | Leisure airline for the tour operators of its own group, short-, medium- and long-haul |
| Headquarters | Dragør near Copenhagen, Denmark |
| Home base | Copenhagen Kastrup (CPH) |
| Other bases | Billund, Stockholm Arlanda, Gothenburg, Malmö, Oslo Gardermoen, Helsinki and other Scandinavian airports |
| Name since | End of 2019, after the collapse of the Thomas Cook Group |
| Predecessors | Premiair (from 1994), MyTravel Airways (from 2002), Thomas Cook Airlines Scandinavia (from 2008) |
| Group | Nordic Leisure Travel Group with Ving, Spies and Tjäreborg |
| Alliance | none |
| Fleet types (as of 2026) | Airbus A321, A321neo and A330-900neo, plus one A330-300 most recently |
| Registrations | Danish, prefix OY- |
How to recognize the airline
Is that really Sunclass Airlines?
- Titles “Sunclass” on the fuselage – earlier aircraft wore the Thomas Cook heart
- Almost always an Airbus: A321 on medium-haul, A330-900neo on long-haul
- Danish registration with OY- – always note the complete registration
- Flight number starts with DK, the tracker shows VKG, and on the radio it is “VIKING”
- Typical flight times: early departures from Scandinavia, return in the afternoon or evening
- Long-haul to Thailand and the Caribbean in winter, the Mediterranean in summer
If you stand at the fence in Gran Canaria in winter or Mallorca in summer, you see aircraft among the Ryanairs and Condors that are flying back to Scandinavia. One of them is called Sunclass Airlines. The name is young, the airline is not: behind Sunclass is one of the Nordic region’s most traditional charter companies – with stops as Premiair, MyTravel and Thomas Cook. This page shows you how to identify Sunclass with confidence, which Airbus types to expect and where a sighting is worthwhile.
Every OY Airbus in your hangar
With Planetrack you log sightings with registration, type, airline and airport – and see at a glance which Sunclass aircraft you still need. Planetrack is launching soon – join the waitlist and get early access.
Sunclass Airlines at a glance
Sunclass Airlines is a Danish leisure airline based in Dragør, right next to Copenhagen Airport. The airline belongs to the Nordic Leisure Travel Group, which sells package holidays in Denmark, Sweden, Norway and Finland – under brands such as Ving, Spies and Tjäreborg. Sunclass is this group’s in-house flight operation: the aircraft take the operators’ guests to hotels on the Mediterranean, in the Canary Islands and at long-haul destinations.
That sets Sunclass clearly apart from a low-cost airline. Individual seats are sold, but package tours form the backbone. If you wonder where the line between charter and scheduled service runs, the article Charter flights vs. scheduled flights will help.
Large and mid-sized airports in all four Nordic countries serve as bases: Copenhagen and Billund in Denmark, Stockholm Arlanda, Gothenburg and Malmö in Sweden, Oslo Gardermoen in Norway and Helsinki in Finland. There is no classic hub for connecting – the aircraft depart in the morning from where the vacationers live.
Codes and callsign
- IATA code DK: appears in the flight number, on departure boards and in travel documents.
- ICAO code VKG: appears in the air traffic control flight plan and on most flight trackers.
- Callsign VIKING: this is how the crew identifies itself on the radio.
Sunclass took over these codes from Thomas Cook Airlines Scandinavia when the name changed in 2019. That the IATA code happens to be DK is convenient, but coincidence as far as the system goes: IATA codes are pure airline identifiers and not country codes. So do not mistake the flight number for an indication of origin – the OY registration gives you that. How registrations are structured in general is explained in the guide Understanding aircraft registrations.
Reading the tracker correctly
If you search for “Sunclass” on a flight tracker, you will usually find the flights under VKG rather than DK. The callsign VIKING may sound like Viking romance, but it clearly belongs to Sunclass. How to make good use of tracker data at the spot is shown in the article on flight tracking for spotters.
Four names, one airline: the history
Sunclass is an airline with many past lives. For spotters that is exciting, because old photos of the same company show very different liveries.
| Period | Name | Background |
|---|---|---|
| until 1993 | Conair of Scandinavia and Scanair | Conair belonged to the Danish travel group Spies, Scanair to the Swedish Scandinavian Leisure Group |
| 1994–2002 | Premiair | Merger of the two charter companies; in the same year the British group Airtours took over the Swedish parent |
| 2002–2008 | MyTravel Airways (Scandinavia) | Airtours had renamed itself MyTravel Group |
| 2008–2019 | Thomas Cook Airlines Scandinavia | MyTravel was absorbed into the Thomas Cook Group |
| since 2019 | Sunclass Airlines | Restart after the Thomas Cook collapse under Scandinavian owners |
The Premiair years in particular are a case for fans of historic aircraft. The airline then flew Airbus A300B4s, A320s and – on long-haul – the McDonnell Douglas DC-10. The three-engine jets disappeared around 2001, and later A330-200s took over the long-haul routes. You will find the British sisters of the MyTravel and Thomas Cook years under Airtours International and Thomas Cook Airlines.
The break in autumn 2019
On September 23, 2019, the British Thomas Cook Group went insolvent. Thomas Cook Airlines in Britain ceased operations for good, while the Scandinavian subsidiary survived. It paused briefly, resumed flight operations and became part of a rescue package: at the end of October 2019 it became known that a consortium of Strawberry (the holding company of Norwegian hotel entrepreneur Petter Stordalen), Altor and TDR Capital would take over the northern European travel business with Ving, Spies, Tjäreborg and the airline. By the end of 2019 the airline had switched to the new name Sunclass Airlines. The parent is now called Nordic Leisure Travel Group.
In the transition period, the aircraft still wore the familiar Thomas Cook heart. Only after that did Sunclass get a look of its own. Photos from 2020 are therefore a small historical document: Sunclass operations, but still Thomas Cook looks.
Outlook with a caveat
In June 2026, Norwegian announced it intends to acquire the Nordic Leisure Travel Group and with it Sunclass. As of October 2026, it is open whether and when the acquisition will be completed and what it means for name, codes and fleet. So for your sightings, always note under which name and code a flight actually operated.
The fleet: an all-Airbus family
Sunclass operates a small, manageable fleet of about a dozen aircraft – exclusively from the manufacturer Airbus. The exact number changes because older A321s are gradually being replaced by new aircraft.
| Type | Use | Spotter note |
|---|---|---|
| Airbus A321 | Canary Islands, Mediterranean, North Africa | Older generation, some already in service in Thomas Cook days |
| Airbus A321neo | like the A321, increasingly standard | Larger engines, gradually replacing the A321 |
| Airbus A330-900neo | Long-haul, mainly in winter | Fleet flagship, high seat count for package tours |
| Airbus A330 (older generation) | Long-haul | A330-200 since retired, one single A330-300 most recently in the fleet |
The A321 is the workhorse on the vacation routes. It is long enough for many seats and has the range for the Canary Islands from Scandinavia – one of the longest typical medium-haul routes in leisure traffic. The A330-900neo is the flagship: with it Sunclass flies to warmer climes, especially in the Nordic winter, such as Thailand or the Caribbean. In common fleet overviews, three A330-900neos were most recently listed in service.
As a leisure airline, Sunclass uses dense seating. According to publicly available fleet overviews, the A321 offers around 212 seats, the A321neo around 218 and the A330-900neo between 373 and 385 seats depending on the season. Take these figures as a rough guide – cabins are often adjusted in leisure traffic.
Only the A330neo missing?
Put registrations or types on your wish list and get notified when they are on approach or landing at your airport. Planetrack is launching soon – join the waitlist.
A321 or A321neo? How to tell them apart
Both versions wear the same livery and are almost the same length. Because Sunclass is in the middle of the changeover right now, a close look is worthwhile.
What points to the A321neo
- Much larger, rounder engine nacelles that hang lower and further forward under the wing
- Upswept sharklets at the wingtips
- Listed as A21N on trackers
What points to the A321 (ceo)
- Slimmer engines with a smaller diameter
- Small wingtip fences or retrofitted sharklets – so sharklets alone are not a reliable neo feature
- Listed as A321 on trackers
The most reliable feature is the engines. How to tell the whole family apart from the A318 to the A321 is explained in the guide Telling the A320 family apart. For the long-haul type, the article A330 or A340? helps – the A330-900neo stands out there with its large Rolls-Royce engines and widely swept wingtips. The older A330-300 and A330-200 generation, which you know mainly from photos of the Thomas Cook era, has smaller engines by comparison.
How to recognize Sunclass
The most striking feature is the “Sunclass” titles on the fuselage. More important for a clean identification, though, is the registration: Sunclass aircraft are registered in Denmark and carry the prefix OY-. Long-lived registrations are especially appealing: an aircraft that was already in service in Thomas Cook days shows up in your collection under several airline names.
Check the titles
“Sunclass” on the fuselage shows the airline. On old photos it says MyTravel or Thomas Cook there.
Read the registration
OY- confirms the Danish registration. Note the complete registration, not just the prefix.
Identify the type
Look at the engines: A321 or A321neo? On long-haul almost always A330-900neo.
Cross-check the tracker
VKG on the tracker confirms that Sunclass operates the flight – even if the aircraft is temporarily leased or repainted.
Because Sunclass flew under other brand names for many years, older color schemes are a collecting field of their own. If you are looking for special liveries, the guide Finding special liveries will help.
Watch out for mix-ups
At vacation airports, several Nordic leisure airlines often stand side by side, including Novair with the A321neo and TUI fly Nordic. If you only photograph the tail, you will sort wrongly later. Always take a picture where the titles and registration are legible too.
Where you can spot Sunclass
Your best chances are at the Scandinavian bases – above all in Copenhagen Kastrup. There the aircraft usually depart early in the morning heading south and come back in the afternoon or evening. A good starting point is provided by the Copenhagen plane spotting guide and the spot Flyvergrillen, from which you look directly at runway 04L/22R and the taxiway in front of it. In Kastrup you meet SAS, Norwegian and many other Nordic airlines alongside Sunclass.
In the south you find Sunclass at the vacation destinations of the Nordic operators. Especially in the winter half-year, the Canary Islands are a meeting point for Scandinavian leisure airlines – tips on this are in the guide Plane spotting in the Canary Islands. Here you can photograph Sunclass right next to German leisure airlines like Condor.
In Germany itself, Sunclass is rare. If you still absolutely want to see the airline at your home airport, you need luck with an ad hoc charter or a diversion.
Good chances of Sunclass if …
- you are at one of the Nordic bases such as Copenhagen, Arlanda or Gardermoen
- you are at the spot early in the morning or in the late afternoon
- you are vacationing in the Canary Islands in winter or on the Mediterranean in summer
Check first if …
- you are specifically looking for the A330neo – long-haul flights are seasonal
- you are planning from older spotter reports that still mention Thomas Cook
Probably not a Sunclass day if …
- you are at a German airport with no Scandinavian charter
Safety and rules
Only take photos from publicly accessible areas, abroad too. Fences and security areas are off limits, and the rules can be stricter depending on the country. What applies in Germany is explained in the article Is plane spotting allowed?.
Sunclass in the Danish airline landscape
Denmark has a long tradition in leisure flying. Besides Premiair, Sterling Airlines and Maersk Air shaped the market; both are history today. Sunclass, by contrast, has continued in a direct line since 1994. Today Sunclass, Jettime and the network carrier SAS share the Danish field, supplemented by low-cost carriers like Norwegian.
Common mix-ups
- Taking DK for Denmark – it fits, but it is a coincidence: DK is the airline’s IATA code, and the country is only shown by the OY registration.
- Taking Sunclass for a new company – the airline has flown since 1994, just under changing names.
- Assigning Thomas Cook photos wrongly – before 2019 the company is called Thomas Cook Airlines Scandinavia, not Thomas Cook Airlines UK.
- Treating sharklets as a sure neo feature – older A321s can carry sharklets too; the engines decide.
- Confusing Sunclass with TUI fly Nordic or Novair – all three fly Nordic vacationers but belong to different groups.
Keep an eye on Sunclass
Follow individual OY registrations or the A330-900neo, get notified on approach or landing and post your sighting with type, registration, airport and spot. Planetrack is launching soon – join the waitlist and get early access.
Conclusion
Sunclass Airlines is proof that a new name says little about an airline’s age. Behind the titles are over 30 years of Scandinavian leisure flying, four brand names and a fleet that increasingly relies on the neo generation. If you note registration and ICAO code, you can follow the same aircraft across years and liveries – and with the A321neo and A330-900neo you have two modern Airbus types on your list that do not turn up in central Europe every day.
In brief
Sunclass Airlines (IATA DK, ICAO VKG) is the Danish leisure airline of the Nordic Leisure Travel Group with an all-Airbus fleet of A321s, A321neos and A330-900neos. Its history goes back through Thomas Cook and MyTravel to Premiair (1994), and the OY registration reveals the Danish home.
Summary
- You recognize Sunclass by its titles, the Danish OY registration and the tracker code VKG – the DK flight number, on the other hand, has nothing to do with the country code.
- Behind the young name is one of Scandinavia’s oldest charter lines: Premiair, MyTravel Airways and Thomas Cook Airlines Scandinavia were the same company under changing owners.
- The fleet is small and manageable – ideal for completing a full collection, but with differences between the A321 and A321neo as well as the old and neo A330.
- In central Europe you mainly run into Sunclass at vacation destinations like the Canary Islands or the Mediterranean, and in Scandinavia at the big airports early in the morning.
Frequently asked questions
What are Sunclass Airlines’ IATA and ICAO codes?
The IATA code is DK, the ICAO code VKG, and the radio callsign is “VIKING.” The codes date from the days of Thomas Cook Airlines Scandinavia and were kept when the name changed. DK is a pure airline identifier and has nothing to do with the country code for Denmark – even though it fits well.
Was Sunclass formerly Thomas Cook?
Yes. Sunclass Airlines is the successor of Thomas Cook Airlines Scandinavia. When the British Thomas Cook Group collapsed in September 2019, an investor group around Petter Stordalen’s Strawberry, Altor and TDR Capital took over the Nordic travel business along with the airline. At the end of 2019 the airline received the new name Sunclass.
What does Sunclass have to do with Premiair?
Premiair was the airline’s first name. It was formed in early 1994 from the Danish Conair of Scandinavia and the Swedish Scanair. In 2002 came the name MyTravel Airways, and in 2008, after the merger of MyTravel with Thomas Cook, the name Thomas Cook Airlines Scandinavia. Since the end of 2019 it has been called Sunclass Airlines.
Which aircraft does Sunclass Airlines fly?
Sunclass flies only Airbus: first-generation A321s, which are gradually being replaced by the more economical A321neo, and the A330-900neo on long-haul. The fleet comprises about a dozen aircraft, and the exact number varies with new arrivals and retirements. The A330-200s have since been retired, and a single older-generation A330-300 was most recently still in the fleet.
Where does Sunclass Airlines fly?
Mainly to classic vacation destinations of the Nordic tour operators: the Canary Islands, the Mediterranean and North Africa on medium-haul, and in winter with the A330neo also to Thailand and the Caribbean or Central America. The flights are usually booked as part of a package tour with Ving, Spies or Tjäreborg.
Does Sunclass belong to Norwegian?
As of October 2026, not conclusively. In June 2026, Norwegian announced it intends to acquire the parent company Nordic Leisure Travel Group. Whether and when the purchase will be completed and what it means for Sunclass’s name, codes and fleet is open – check the current status if needed.
Where can I spot Sunclass Airlines?
Most reliably at Copenhagen Kastrup, the home base, as well as at Stockholm Arlanda, Oslo Gardermoen, Billund and Helsinki. In the south you see Sunclass in the Canary Islands and at Mediterranean airports – often together with other Nordic leisure airlines. In Germany, Sunclass lands only by exception.
Keep an eye on Sunclass Airlines
Watch the airline or individual registrations and get notified on approach or landing – and post your sighting with type, registration and spot. Planetrack is launching soon – join the waitlist and get early access.
Aircraft types in the fleet
Airbus A321 (ceo)
The long Airbus from Hamburg: the A321ceo is the stretched member of the A320 family and has flown with Lufthansa since 1994. Four door pairs and slim proportions give it away – here is how to spot it with confidence.
Aircraft typeAirbus A321neo
The long sibling of the A320neo: the A321neo is the largest jet in the family and even crosses the Atlantic as the LR and XLR. Here is how to spot it and its variants.
Aircraft typeAirbus A330-900neo
Classic A330 fuselage, but with sharklets, a black cockpit mask and much larger engines: the A330-900neo is the relaunch of a long-haul classic. Here is how to recognize it reliably.
Aircraft typeAirbus A330-200
Shorter than the A330-300, with a strikingly tall vertical stabilizer and long range: the A330-200 is a long-haul classic that is slowly disappearing from Europe’s fleets. Here is how to spot it with confidence.
Aircraft typeMcDonnell Douglas DC-10
Two engines under the wings, the third in the middle of the vertical stabilizer: the DC-10 was one of the first widebody jets and also flew for Lufthansa and Condor. Today it is a rarity – here is how to recognize it.
More airlines
Thomas Cook Airlines
A historic British leisure airline (2003–2019) from Manchester: it grew out of JMC Air, flew Airbus A321s and A330-200s at the end – until the Thomas Cook group went into liquidation on September 23, 2019, and the largest peacetime repatriation in British history.
LeisureNovair
Historic charter airline from Stockholm: founded in 1997 for the tour operator Apollo, most recently flying Airbus A321neos and shut down in October 2023.
LeisureTUI fly Nordic
The Swedish leisure airline of the TUI Group: roots in Transwede and Blue Scandinavia, bases at Stockholm Arlanda and Gothenburg, a tiny fleet of Boeing 737 MAX 8s and one 787-9 – and a callsign with history.
LeisureJettime
Danish charter and ACMI airline from Kastrup near Copenhagen: Boeing 737-800s for tour operators, sports teams and as short-notice cover for other airlines – formerly with ATR 72s flown for SAS as well.
Low-costSterling Airlines
Historic Danish airline: Sterling Airways flew vacationers south from 1962, went bankrupt in 1993, returned as Sterling European and became a low-cost carrier from 2001 – until bankruptcy in October 2008.
Low-costNorwegian Air Shuttle
The Scandinavian low-cost airline from Fornebu near Oslo: all-Boeing 737 fleet, red nose, portraits of famous people on the tail – and under one roof with Widerøe since 2024.
Related airports & manufacturers
Airports, manufacturers, airline groups and alliances – who is behind them and what you should know as a spotter.
Airbus
European aerospace company and one of the two big manufacturers of commercial aircraft – with aircraft families from the A220 to the A350.
AirportCopenhagen Kastrup Airport
The largest airport in the Nordic countries sits on Amager, eight kilometers from City Hall Square: three runways, a terminal complex with metro and train connections, SAS as the host – and with the Flyvergrillen a spotter spot that has cult status in Denmark.
AirportStockholm Arlanda Airport
Sweden’s largest airport lies about 40 kilometers north of Stockholm in the forest near Märsta: three runways in two directions, a terminal system under reconstruction, SAS as the landlord – and an official spotters’ pavilion around which a whole network of photo points has formed.
AirportOslo Gardermoen Airport
Norway’s gateway to the world lies about 35 kilometers north of Oslo on a former military site: two parallel north–south runways, a single terminal with a Flytoget station, SAS, Norwegian and Widerøe as the home carriers – and an operator that designates places for spotters.
Where to get Sunclass Airlines in front of your lens
Spotting locations where this airline can be seen regularly – with vantage points, light times and coordinates.
Related guides from the blog
- Plane spotting at Copenhagen Kastrup: spots beyond the Flyvergrillen
- Charter vs. scheduled flights: differences, history and today’s leisure airlines
- How to tell the A318, A319, A320 and A321 apart
- A330 or A340? Spotting engine count, landing gear and variants
- Plane spotting in the Canary Islands: Lanzarote, Tenerife, Gran Canaria and Fuerteventura compared
- Aircraft registrations explained: how to read any tail number



