Flybondi

Anyone who has traveled through Argentina in recent years could hardly miss Flybondi: yellow lowercase lettering, a Boeing 737-800 and ticket prices that competed with long-distance buses. Flybondi was the country’s first ultra-low-cost airline – and in autumn 2026 it is a lesson in how quickly such a model can tip over. This page explains the airline, its codes and registrations, and where things stand now.

Flybondi at a glance

Flybondi is an Argentine ultra-low-cost airline headquartered in Buenos Aires. The operator is FB Líneas Aéreas S.A. The project was announced in September 2016 by a group of Argentine entrepreneurs and international aviation investors. Among them were well-known names from the European low-cost world: Michael Cawley, formerly in a senior role at Ryanair, Robert Wright, founder of CityFlyer Express and later a shareholder and board member at Wizz Air, and the former Air Canada chief Montie Brewer. Co-founder and first CEO was the Swiss Julian Cook, who had previously founded the regional airline FlyBaboo.

The name is a play on words: “Bondi” is what people in Buenos Aires call the city bus. Flying was supposed to become as normal as taking the bus. “Air Bondi” was originally under discussion – but that sounded too much like Airbus, so it became Flybondi. The slogan “La libertad de volar” – the freedom to fly – fit that ambition.

In March 2017, the type decision was made for the Boeing 737. On January 26, 2018, the first scheduled flight took off from Córdoba to Puerto Iguazú.

Codes and callsign

• IATA code FO: appears in the flight number, on tickets and on departure boards.
• ICAO code FBZ: appears in the air traffic control flight plan and on most flight trackers.
• Callsign BONDI: this is how the crew identified themselves on the radio – a direct nod to the brand name.

At first glance, the codes FO and FBZ don’t seem particularly “flybondi”-like. That’s normal: IATA and ICAO codes are assigned based on availability and don’t have to match the name. How to read the codes on trackers properly is explained in the guide to flight tracking for spotters.

The business model: ultra-low-cost, European style

Flybondi brought a model to Argentina that had long been established in Europe: a single aircraft family, a single class, as many seats as possible and a low base fare, with baggage, seat selection and other services costing extra. If you’re interested in the mechanics behind it, you’ll find them in the article How low-cost carriers work.

The model was new for Argentina mainly because the domestic market had been dominated for decades by state-owned or state-affiliated companies – today mainly Aerolíneas Argentinas, which belongs to SkyTeam. Flybondi was the first airline to deliberately bet on ultra-low-cost. Shortly afterward came JetSMART Argentina, the Argentine arm of the Chilean JetSMART – with Airbus instead of Boeing.

One feature of the model was the route network away from the capital. Flybondi did not start in Buenos Aires but in Córdoba, connecting destinations such as Mendoza, Bariloche and Puerto Iguazú from there. The network later grew considerably, including Patagonian destinations such as El Calafate, Ushuaia and Puerto Madryn, plus Salta, Neuquén and Mar del Plata at times.

El Palomar, Aeroparque, Ezeiza: the bases

For spotters, Flybondi’s base history is especially interesting because it involves an unusual airfield.

El Palomar is about 18 kilometers from the center and was a base of the Argentine Air Force. The fact that yellow-lettered 737-800s suddenly stood among military aircraft there from 2018 was one of the most curious phases of Argentine aviation. Since 2020 there has been no civilian scheduled service there – so photos of Flybondi at El Palomar are real historical documents today.

After that, Aeroparque (AEP) became the most important base: the city airport right on the Río de la Plata. At times Flybondi also used the major airport Ezeiza.

The fleet: leased Boeing 737-800s

Flybondi stayed with one aircraft family the entire time: the Boeing 737-800. The aircraft had 189 seats in a single class and were all leased – how that works is explained in the guide to aircraft leasing. Flybondi took delivery of the first aircraft, LV-HKS, in December 2017 from the lessor SMBC Aviation Capital. It carried the name “Nelson” and later flew with Andes Líneas Aéreas.

Phase	Fleet	Spotter note
Start 2017/2018	first 737-800s	Named aircraft such as “Nelson” (LV-HKS), “Valkyria” and “Max”
2022	around 12 Boeing 737-800s	Operations from Aeroparque after the end at El Palomar
2024/2025	around 15 Boeing 737-800s	Peak fleet size
2026	sharply reduced	Ten aircraft back to lessors, three inactive in Argentina (as of October 2026)

The fleet’s manufacturer is Boeing. The 737-800 belongs to the 737 Next Generation – recognizable by the CFM56 engines with a flattened lower cowling and usually by blended winglets. How to tell it apart from the older Classics or the newer 737 MAX 8 is explained in the article How to tell the Boeing 737 Original, Classic, NG and MAX apart.

One quirk for database fans: if an aircraft with a foreign registration and a foreign look turns up under an FO flight number, a chartered aircraft with crew is usually behind it – a so-called wet lease. And a 737-800 intended for Flybondi (LV-HXQ) was never delivered; today it flies for Jet2 in the United Kingdom.

How to recognize Flybondi

The trademark is the logo: “flybondi” in lowercase and bold yellow. With this color, the airline stood out clearly from the blue and white of Aerolíneas Argentinas. Because the fleet consisted of only one type, the combination of yellow lettering, 737-800 and LV- registration is practically unambiguous.

The Argentine registration starts with LV-, followed by three letters. The system of country prefixes is explained in the guide Understanding aircraft registrations. Since all Flybondi aircraft were leased, it’s worth checking the history for every sighting: many 737-800s flew for other airlines before and reappear with a new registration after being returned.

From success story to crisis

In its first years, Flybondi grew quickly. From December 2018, international destinations were added, first Asunción in Paraguay and from October 2019 Rio de Janeiro. More routes to Brazil followed later, including Florianópolis and São Paulo-Guarulhos. According to figures from the Argentine aviation authority ANAC, cited by Argentine media, Flybondi reached a share of around 17 percent of the domestic market in August 2025.

At the same time, problems piled up. As early as December 2024, ANAC gave the airline an ultimatum after numerous cancellations in a single weekend. In June 2025, the majority of the shares were supposed to change hands: according to Spanish-language Wikipedia, the previous main owner Cartesian Capital Group sold to the fund COC Global Enterprise of the entrepreneur Leonardo Scatturice. It was later said that the formal transfer was never completed. In August 2026, COC announced legal action against Cartesian.

In the course of 2026, operations largely collapsed:

• Mass cancellations: Argentine media report around 2,400 canceled flights in 2026 with several hundred thousand affected passengers. These figures come from third-party surveys, not an official register.
• Shrinking operations: In July 2026, Flybondi flew only a small share of its scheduled flights. Since August 6, 2026, there have been no regular flight operations.
• Market share: According to ANAC data, the domestic share fell from around 17 percent in August 2025 to 0.1 percent in August 2026.
• Composition proceedings: In early October 2026, FB Líneas Aéreas filed with Commercial Court No. 24 in Buenos Aires for a Concurso preventivo to restructure liabilities estimated at around 120 million US dollars.

According to people close to the company, Flybondi wants to resume flight operations. As of October 2026, there is no concrete plan with a date. Aerolíneas Argentinas and JetSMART have meanwhile taken over some of the routes.

Spotting Flybondi today

Honestly: catching an active Flybondi aircraft in flight is hardly possible as of October 2026. The airline remains exciting anyway – in three ways.

First: the stored aircraft. According to reports, three Flybondi aircraft are still in Argentina, all out of service. Photograph them only from publicly accessible areas – aprons and maintenance areas are off limits.

Second: the returned 737-800s. After being returned, leased aircraft usually get a new registration and a new paint scheme. In the transition period, mixed liveries often appear with a white fuselage and remnants of the old logo. How to recognize such cases is shown in the article on hybrid and mixed liveries; the background on registration changes is explained in the guide to re-registrations.

Third: the history. When an aircraft is missing on the tracker, it’s not always the airline’s fault – sometimes there is simply no reception or the aircraft is parked. You can find out what’s behind it under Why an aircraft doesn’t show up on Flightradar.

Flybondi compared with other South American airlines

With its all-737 fleet, Flybondi is in line with other low-cost airlines on the continent. Brazil’s GOL also relies exclusively on the Boeing 737 and was a direct competitor on the Brazil routes. JetSMART, by contrast, flies Airbus from the A320 family – so from the spot the difference is quickly clear. If you’re interested in the ultra-low-cost model worldwide, you’ll find parallels at Canada’s Flair Airlines, which also relies on Boeing.

The European role model is also recognizable: Flybondi’s basic principle – uniform 737 fleet, one class, add-on fees – is strongly reminiscent of Ryanair. No coincidence, since Michael Cawley, a former Ryanair executive, was among the founding investors.

Common mix-ups

• Taking every 737 in Argentina for Flybondi – Aerolíneas Argentinas also flies Boeing 737s.
• Confusing Flybondi and JetSMART – JetSMART flies Airbus, Flybondi flew Boeing.
• Equating an FO flight number with its own aircraft – foreign aircraft also flew under FO on wet lease.
• Taking El Palomar for an active civilian airport – there has been no civilian scheduled service there since 2020.
• Listing Flybondi as an active airline – as of October 2026, operations are suspended.

Conclusion

Flybondi changed Argentine aviation: its 2018 start brought the ultra-low-cost model to the country, and at times one in six domestic passengers flew with the yellow brand. For spotters, it remains a compact, well-documentable airline – one type, one registration prefix, a manageable number of registrations. Operations have been at a standstill since August 2026, and whether Flybondi returns is open. All the more valuable are photos from the active years.