VietJet adopts AI fuel analysis and agrees AI work with Thales
VietJet chose OpenAirlines' SkyBreathe in February 2025 to analyse flight data for fuel savings, and is giving all its pilots the MyFuelCoach app. OpenAirlines projects a 2% fuel reduction. In September 2026 VietJet signed a memorandum with Thales on predictive analytics and decision support for airline operations.
The operating picture
Fuel first, then the operation
VietJet Air Airbus A321neo VN-A528 Ho Chi Minh City 2023 (01). Photograph: Bahnfrend / CC BY-SA 4.0 (cropped to fit). Illustrates the airline, not an AI deployment.
VietJet operates an Airbus fleet of more than 100 aircraft on more than 400 daily flights, according to the airline. Its first documented AI application targets fuel, one of an airline's largest costs.
The Thales agreements, signed at the Élysée Palace during an official visit to France by Vietnam's president, To Lam, pair a component maintenance contract with a memorandum on digital aviation, cyber security and AI.
Selected implementations
The work behind the evidence
01 / Reported · unverified
Fuel analysis and a coach for every pilot
The operational problem
Small habits in how flights are planned and flown, such as taxiing on one engine or carrying extra fuel, add up to large fuel bills across a fleet, but they are hard to see flight by flight.
What the evidence reports
VietJet said on 6 February 2025 that it would adopt SkyBreathe, which uses machine learning and big data algorithms to analyse flight data and fuel reports, find fuel saving opportunities and give recommendations to pilots and flight operations managers. All pilots will receive the MyFuelCoach app, with personal briefings and debriefings on their fuel efficiency. OpenAirlines chief executive Alexandre Feray said implementation was already under way. OpenAirlines' analysis projects a 2% fuel reduction and more than 96,000 tonnes less CO2 a year.
Operational significance
Giving each pilot feedback on their own flights turns fleet fuel data into individual changes in the cockpit.
Evidence still needed
The 2% and 96,000 tonne figures are OpenAirlines' projections. VietJet has not reported savings since implementation began.
A source can verify an announcement without verifying its projected outcome.
02 / Reported · unverified
A memorandum on AI for operations
The operational problem
A growing airline needs better forecasts and decision tools to keep its operation reliable as the network expands.
What the evidence reports
VietJet said on 13 September 2026 that it had signed a Repair-By-The-Hour component maintenance contract with Thales for its A320, A321, A330 and A330neo families, and a memorandum of understanding covering digital aviation, avionics, cyber security and AI for airline operations. The memorandum names secure cloud solutions, predictive analytics and decision support technologies. Chief executive Nguyen Thanh Son said the partnership would "enhance the reliability, safety and operational efficiency of Vietjet's fleet".
Operational significance
The memorandum puts AI on the operations agenda alongside a firm maintenance contract with the same supplier.
Evidence still needed
A memorandum is a statement of intent. No AI project, timeline or value has been announced.
A source can verify an announcement without verifying its projected outcome.
The wider register
Other tracked activity
Other records are shown separately, including non-AI technology and programmes at different stages of deployment. A register entry does not establish a measured AI benefit.
No other publicly listed records.
Editorial assessment
VietJet's AI under way is fuel analysis bought from a specialist supplier; its operations AI is still at the agreement stage.
Reported fuel savings from SkyBreathe, measured by VietJet, would be the first hard result.
Live data from the Aerostack register. Status reflects published evidence only. See Our approach for how records are graded.
Aerostack register · 2 tracked deployments
Aerostack tracks AI deployments across airports and airlines, with the published evidence behind each record. Photography is real aviation imagery. Record thumbnails may show the named airport or airline; other photographs do not.
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