Tassili Airlines

Algerian airline founded in 1998 by Sonatrach and Air Algérie to serve the oil and gas fields of the Sahara. Since 2025 it has belonged entirely to Air Algérie and flies domestically as Domestic Airlines.

Also known as: Domestic Airlines · Tassili Air · SF · DTH

AlgeriaAlgeriaRegional airlinesIATA: SFICAO: DTH12 min read

SF

IATA code

DTH

ICAO code

1998

Year founded

7T-

Registration prefix

Key takeaways

  • Tassili Airlines is an Algerian airline from Algiers, founded in 1998 by Sonatrach and Air Algérie.
  • Codes: IATA SF, ICAO DTH, callsign “TASSILI AIR.”
  • It originally flew oil and gas industry personnel to the Sahara; public scheduled flights only came from 2011.
  • In 2025 the airline passed from Sonatrach to Air Algérie and has since operated domestically as Domestic Airlines.
  • The fleet mixes jet and turboprop: Boeing 737-800s alongside Dash 8-Q400s and Dash 8-Q200s.
Contents
  1. 1.Tassili Airlines at a glance
  2. 2.Codes and callsign
  3. 3.From oil-field airline to scheduled carrier
  4. 4.2025: Tassili becomes Domestic Airlines
  5. 5.The fleet: 737-800 and two generations of the Dash 8
  6. 6.Dash 8-Q400 or Q200? How to tell them apart
  7. 7.How to recognize Tassili Airlines
  8. 8.Network and airports
  9. 9.Tassili compared with its neighbors
  10. 10.Incidents
  11. 11.Common mix-ups
  12. 12.Conclusion

Profile

IATA codeSF
ICAO codeDTH
CallsignTASSILI AIR
HubsALG, HME
Business modelDomestic and regional airline, originally a shuttle for the oil and gas industry
HeadquartersAlgiers, Algeria
FoundedMarch 4, 1998, as a joint venture of Sonatrach and Air Algérie
First flightApril 1999, Hassi Messaoud–Algiers
OwnerSonatrach Group until 2025, Air Algérie since the transfer in June 2025
Current nameDomestic Airlines (since summer 2025), first flight under the new name on August 22, 2025
BasesAlgiers (ALG) and, historically, Hassi Messaoud (HME)
Alliancenone
Fleet (as of the last published overview)7 Boeing 737-800, 4 Dash 8-Q400, 4 Dash 8-Q200
RegistrationAlgerian with 7T-; the jets and Dash 8s run in the 7T-VC… series

How to recognize the airline

Is that really Tassili Airlines?

Check off everything that applies to the aircraft you’re looking at right now.

  • Aircraft with the Algerian registration 7T-, in the passenger fleet mostly from the 7T-VC… series
  • Mixed fleet of Boeing 737-800s and the turboprops Dash 8-Q400 and Dash 8-Q200
  • On the tracker with the ICAO code DTH, on the radio with the callsign “TASSILI AIR”
  • Since 2025 a new brand look as Domestic Airlines with a logo modeled on Air Algérie’s and leaning more on green
  • Based mainly at domestic airports in Algeria, as far as the Sahara at Tamanrasset, Djanet or In Amenas

Tassili Airlines is one of those airlines you rarely get to see in Europe – which is exactly why a closer look is worthwhile. It was founded to fly engineers and workers to the oil fields of the Algerian Sahara. Today it belongs to Air Algérie and operates under a new name: Domestic Airlines. This page shows you where the airline comes from, what it flies and how to assign its aircraft with confidence.

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Tassili Airlines at a glance

Tassili Airlines is an Algerian airline headquartered in Algiers. It was founded on March 4, 1998, as a joint venture of two state-owned companies: the energy group Sonatrach and the national carrier Air Algérie. The name goes back to the Tassili n’Ajjer, a high plateau in southeastern Algeria known for its rock paintings.

The purpose was unusual from the start. Tassili was not meant for vacationers but for supplying the oil and gas industry: personnel of Sonatrach and partner companies had to commute regularly between the north and the production sites deep in the Sahara. The first flight in April 1999 therefore led not to a vacation region but from Hassi Messaoud to Algiers – Hassi Messaoud is the center of Algerian oil production.

From the mid-2000s Sonatrach increased its stake and ran the airline as a group subsidiary. Besides passenger service, the group included the Tassili Travail Aérien (TTA) division, which took on aerial work and charter with smaller aircraft and helicopters.

SFIATA code in the flight number
DTHICAO code on the tracker
7T-Algerian registration prefix

Codes and callsign

  • IATA code SF: appears in the flight number, so on departure boards and tickets.
  • ICAO code DTH: appears in the air traffic control flight plan and on flight trackers.
  • Callsign TASSILI AIR: how the crew identifies itself on the radio.

At first glance the ICAO code DTH seems to have nothing to do with the name. That is the case with many airlines – ICAO codes are assigned by availability and don’t always follow the name. What matters for you: whether Domestic Airlines will fly under the old Tassili codes permanently is not clearly documented publicly. On trackers you may therefore keep seeing DTH while the terminal display already shows the new name. How IATA and ICAO codes are generally assigned is explained in the article IATA and ICAO codes.

Reading the tracker correctly

For airlines in transition, name, logo and code don’t always match. Rely on the ICAO code and the registration, not on the displayed airline name. How to read tracker data properly is explained in the guide to flight tracking for spotters.

From oil-field airline to scheduled carrier

For more than a decade, Tassili was mainly a company shuttle. The aircraft commuted between Algiers, Hassi Messaoud and other industrial sites in the south such as In Amenas or Hassi R’Mel. For ordinary travelers the airline was hardly bookable.

That changed in 2011. In September Tassili received permission from the Algerian transport ministry for public flights, in October the airline took delivery of its fourth Boeing 737-800 and opened its first sales office at Algiers Airport. At the end of 2011 came IATA’s IOSA certification, an internationally recognized safety audit.

The step abroad came in 2012. The first international route went to Rome, and from 2013 destinations in France followed – first Saint-Étienne and Grenoble, then Marseille and Strasbourg in 2014 and Lyon in 2015. Because of the large Algerian community, France is the most important foreign market for Algerian airlines; the same logic shapes the network of Air Algérie and used to shape that of the French Aigle Azur.

Year Event
1998 Founded by Sonatrach and Air Algérie
1999 First flight Hassi Messaoud–Algiers
2011 Permission for public flights, IOSA certification
2012 First international flight to Rome
2013–2015 Flights to France, including Marseille, Strasbourg and Lyon
2014 Joins the African airline association AFRAA
2025 Transfer to Air Algérie, new look as Domestic Airlines

2025: Tassili becomes Domestic Airlines

The biggest turning point in the airline’s history came in 2025. On June 19, 2025, the Sonatrach holding for external and support activities (SAES) and Air Algérie signed an agreement in Algiers under which Tassili Airlines passed entirely to Air Algérie. Both sides justified the step as a way to strengthen domestic air travel and better connect the country’s regions.

In early July 2025, Air Algérie then presented the new name: Domestic Airlines. The logo is modeled on the parent company’s but uses green instead of red. How airlines carry out such design changes is shown in the article When airlines change their design. At the same time Air Algérie ordered 16 ATR 72-600s from the manufacturer ATR for the new subsidiary. According to the trade press, deliveries are planned from 2026 to 2028. The division of labor is thus clear: Air Algérie concentrates on the international network from Algiers, and Domestic Airlines takes over connections between Algerian cities and to the south.

The trade press reported the first flight under the new name for August 22, 2025, from Algiers. For you as a spotter that means: the name Tassili Airlines is gradually disappearing. Older photos show the Tassili look, while newer shots may already carry Domestic Airlines elements – typical transition pictures are explained in the guide to hybrid and mixed liveries. When making notes, record the name under which you saw an aircraft.

Careful when sorting

In a logbook, Tassili Airlines and Domestic Airlines quickly end up as two different airlines. It makes more sense to merge them via the ICAO code DTH and the registrations, and to note the brand name at the time of the sighting as an addition.

The fleet: 737-800 and two generations of the Dash 8

Tassili’s passenger fleet is small but varied. The airline’s last published fleet overview lists these types:

Type Number Seats Registrations Spotter note
Boeing 737-800 7 155 (20 business, 135 economy) 7T-VCA to 7T-VCF and 7T-VCT Only jet type, also flew the France routes
Dash 8-Q400 4 74 7T-VCL to 7T-VCO Large turboprop with a long fuselage
Dash 8-Q200 4 37 7T-VCP to 7T-VCS Short turboprop for small Sahara airfields
ATR 72-600 16 on order (Air Algérie for Domestic Airlines) 72 still open Deliveries planned from 2026

The Boeing 737-800 is the backbone on longer domestic routes and on the former international routes. With a business cabin up front, it is comparatively comfortably equipped for a domestic airline – a legacy of the time when mainly specialists and executives of the energy industry sat on board. The manufacturer is Boeing.

The Dash 8-Q400 and the smaller Dash 8-Q200 originally come from de Havilland Canada, were built under the Bombardier name for a long time and today belong to De Havilland Canada again. They suit shorter runways and smaller airports, of which southern Algeria has many.

The TTA division also included smaller types such as the Beechcraft 1900D, the Cessna 208 Caravan and Bell 206 helicopters. Details on the Beechcrafts differ by source; they clearly belong to the aerial work and charter side, not the scheduled fleet.

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A note on currency: with the integration into Air Algérie, the fleet is in motion. The trade press describes that Air Algérie wants to integrate the Tassili aircraft step by step, and one source cites twelve transferred aircraft at the launch of Domestic Airlines. Exactly which 737-800s and Dash 8s fly under DTH in October 2026 is not clearly documented publicly. Before a targeted search, check the current assignment via the registration.

Dash 8-Q400 or Q200? How to tell them apart

Both turboprops wear the same paint scheme and the same name, but they are easy to tell apart if you know what to look for.

What points to the Q400

  • Clearly longer fuselage with many windows
  • Large engine nacelles with six-blade propellers
  • Long, tall landing gear under the nacelles
  • Listed on trackers as DH8D

What points to the Q200

  • Short, stubby fuselage
  • Smaller nacelles with four-blade propellers
  • Looks almost tiny next to a 737
  • Listed on trackers as DH8B

What is behind codes like DH8D or DH8B is explained in the article ICAO type designators. If you want to identify turboprops more reliably in general, the guide How to tell the ATR and Dash 8 apart helps. This becomes especially important at Domestic Airlines once the ATR 72-600s join the fleet: the ATR has its landing gear in fuselage-mounted pods, while the Dash 8 has its gear under the engines. For the 737, the overview 737 Original, Classic, NG and MAX helps if you want to confirm the generation.

How to recognize Tassili Airlines

At Tassili the paint scheme is less distinctive than at big airlines, because the look changed in 2025. The hard features are more reliable:

Read the registration

7T- stands for Algeria. Tassili’s passenger fleet is in the 7T-VC… series.

Classify the type

737-800, Dash 8-Q400 or Dash 8-Q200 – other types are not documented in the scheduled fleet.

Cross-check the tracker

The ICAO code DTH confirms the company, even if the displayed name already reads Domestic Airlines.

Note it properly

Record the registration, type and the brand name at the time of the sighting. That keeps the entry unambiguous.

You can find more on reading registrations and country prefixes in the article Understanding aircraft registrations.

Network and airports

The network reflects the airline’s history. According to the route network details from early 2026, the company flies exclusively within Algeria. That includes the big cities in the north such as Algiers, Oran, Constantine and Annaba, but above all many destinations in the south: Hassi Messaoud, Ouargla, In Amenas, Illizi, Djanet, Tamanrasset, In Salah, Adrar, Timimoun, Béchar and Tindouf. Many of these airports lie in the middle of the desert and, for travelers without a flight connection, can only be reached by very long overland journeys.

Earlier flights to France led to Marseille, Lyon and Strasbourg, among others; sources also name Nantes and Paris Charles de Gaulle as destinations. With the realignment as Domestic Airlines, these connections no longer appear in the current network details.

Good chances of Tassili if …

  • you are at an Algerian domestic airport, especially in Algiers
  • you are sorting photos from French archives of the 2010s

Check first if …

  • you are planning from older spotter reports from France
  • you are looking for a specific registration – the fleet is being reorganized right now

Probably not a Tassili day if …

  • you spot in Germany – scheduled flights here are not documented

Safety and rules

In Algeria, photography at airports is subject to its own, in part strict rules. Find out locally, only photograph from publicly accessible areas and stay away from security areas. The article Is plane spotting allowed? explains what applies in Germany.

Tassili compared with its neighbors

In the Maghreb, three very different airline models meet. Air Algérie is the national network carrier, which now runs Tassili as its domestic subsidiary. In Tunisia, Tunisair flies as the flag carrier, in Morocco Royal Air Maroc with its Casablanca hub. Tassili stands out from this lineup: hardly any other airline in the region began as the company shuttle of an energy group. Anyone who has seen a 737 with a business cabin on a short desert runway understands this origin immediately.

Incidents

Tassili’s history is not free of accidents. On January 28, 2004, a Beechcraft 1900 with the registration 7T-VIN crashed on a charter flight from Hassi R’Mel while approaching Ghardaïa. The crew had aborted the approach because the runway was still occupied; on the second approach a wing touched the ground. The first officer died of his injuries, and the other occupants survived. In March 2019, a main landing gear leg collapsed on another Beechcraft 1900D in Ouargla; nobody was injured.

Common mix-ups

  • Logging Tassili and Domestic Airlines as two airlines – it is the same company with a new name.
  • Taking a Tassili 737 for Air Algérie – both fly 737-800s with 7T- registrations; the ICAO code DTH decides.
  • Taking the Q200 for an ATR 42 – the Dash 8 has its landing gear under the engines, the ATR on the fuselage sides.
  • Naming Sonatrach as the current owner – since June 2025 the airline belongs to Air Algérie.
  • Counting the TTA Beechcrafts as part of the scheduled fleet – they belong to the aerial work and charter side.

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Conclusion

Tassili Airlines is a piece of Algerian industrial history: founded as Sonatrach’s company shuttle, later opened to all travelers, at times flying to France and, since 2025, operating under the umbrella of Air Algérie as Domestic Airlines. The small fleet of Boeing 737-800s and two Dash 8 versions makes every sighting something special. If you note the registration and ICAO code along with it, you can assign it cleanly even in transition.

In short

Tassili Airlines (IATA SF, ICAO DTH) is an Algerian domestic airline co-founded by Sonatrach in 1998 and, since 2025, part of Air Algérie as Domestic Airlines. The fleet mixes Boeing 737-800s and Dash 8s – the registration 7T-VC… identifies them most reliably.

Summary

  • Tassili Airlines is the airline Sonatrach once built for the oil fields in southern Algeria – and which today, as Domestic Airlines, relieves Air Algérie’s domestic network.
  • What is interesting for spotters is the small, mixed fleet: a handful of 737-800s with Algerian 7T- registrations and two generations of the Dash 8.
  • Codes and registrations are the surest features, because the name and look have been changing since 2025.
  • In Europe Tassili was at times seen with flights to France; today operations concentrate on the domestic market.

Frequently asked questions

What are the IATA and ICAO codes of Tassili Airlines?

The IATA code is SF and the ICAO code is DTH. On the radio the crew uses the callsign “TASSILI AIR.” Whether Domestic Airlines will keep these codes permanently is not clearly documented publicly; on trackers you will still see DTH, though.

Is Tassili Airlines the same as Domestic Airlines?

Yes, essentially. After Sonatrach transferred the airline to Air Algérie in June 2025, Air Algérie presented the new name Domestic Airlines in July 2025. The trade press reported the first flight under this name for August 22, 2025, from Algiers. The operation builds on Tassili Airlines.

Does Tassili Airlines belong to Sonatrach?

Not anymore. The state energy group Sonatrach was a co-founder and for a long time the owner. On June 19, 2025, Sonatrach and Air Algérie signed the agreement under which the airline passed entirely to Air Algérie.

Which aircraft does Tassili Airlines fly?

The airline’s last published fleet overview lists seven Boeing 737-800s, four Dash 8-Q400s and four Dash 8-Q200s. Air Algérie has also ordered 16 ATR 72-600s for Domestic Airlines, with deliveries planned from 2026. How exactly the fleet is distributed during the integration is best checked for the current status.

What was Tassili Airlines founded for?

For service to the oil and gas fields in southern Algeria. The first flight in April 1999 connected Hassi Messaoud, the center of Algerian oil production, with Algiers. Only in 2011 did the airline receive permission for public scheduled flights.

Did Tassili Airlines also fly to Europe?

Yes. From 2012 Tassili offered international flights, first to Rome, later to Marseille, Lyon, Strasbourg, Grenoble and Saint-Étienne, among others. With the realignment as Domestic Airlines, however, the focus is on the Algerian domestic market.

How do I recognize a Tassili aircraft?

Most reliably by the registration and the tracker: the aircraft carry the Algerian prefix 7T-, the passenger fleet is in the 7T-VC… series, and flight trackers show the ICAO code DTH. The paint scheme may change since the rebranding.

Keep an eye on Tassili 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.

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The airline database is built from our own observations, community sightings and publicly available sources. Fleets, routes and owners change all the time – confirmed details are in the profile, and anything subject to change is marked as such.

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