British Airways opens bookings 355 days before departure, nearly a full year ahead. That is further than any major UK budget airline, and the window is the same whether you are booking a seat to Madrid or a business class flight to Singapore. Here is exactly how the BA booking window works and how to use it.
“The 355-day window matters most when your travel dates are fixed: a Christmas trip, a wedding abroad, school holiday flights. Book at 355 days and you will almost certainly get the seat you want at the price you want. Wait six months and neither is guaranteed.”
Kate Acaster, Chief Editor, Flight Tribe
The BA booking window: 355 days in advance
When does BA release flights? Every day at midnight GMT, British Airways opens bookings for flights departing exactly 355 days later. There is no seasonal batch, no single date when summer 2027 suddenly appears for sale all at once. Instead, each flight becomes available precisely 355 days before it departs, one day rolling forward at a time.
This is very different from how budget airlines operate. Ryanair releases summer routes in one batch from around November, then winter routes from May. BA’s rolling daily release means you can always book up to 355 days ahead. A new day of flights opens every morning at midnight, moving the booking horizon forward by 24 hours.
The 355-day rule applies equally to cash tickets, Avios reward bookings, and flight-inclusive packages through BA Holidays. It is the same for short-haul European routes and long-haul flights to North America, Asia, and beyond.
Everything you need to know about British Airways
How BA’s booking window compares to other airlines
The 355-day window is one of the longest of any carrier operating from the UK. Budget airlines work on much shorter timescales because they build their schedules closer to departure and do not commit to routes as far ahead. The table below shows how BA compares.
| Airline | Booking window | How flights are released |
|---|---|---|
| British Airways | 355 days | Rolling daily: new flights open at midnight GMT |
| Ryanair | 6-9 months | Two seasonal batches: summer (Nov-Jan), winter (May-Jun) |
| easyJet | Approx. 6 months | Seasonal route-by-route releases |
| Jet2 | Up to 12 months | Seasonal summer/winter programme releases |
| TUI | Up to 12 months | Seasonal summer/winter programme releases |
Approximate figures. BA’s 355-day figure is confirmed on ba.com. Budget airline windows vary by route and season.
Booking with Avios: what the 355-day release means in practice
For members of The British Airways Club, the 355-day mark is the moment to act on reward seats. At midnight GMT, when a new flight enters the booking window, BA guarantees a set number of Avios reward seats: four in Business Class, two in Premium Economy, and eight in Economy.
First Class Avios availability is not guaranteed but seats typically appear, sometimes close to the 355-day mark and sometimes closer to departure when BA wants to fill the cabin.
For the most in-demand routes (peak summer, Christmas, school half-terms), setting an alarm and booking at midnight is worth it. The BA website opens new flights at midnight, but calling the club line has historically been more reliable on busy routes.
How to work out your booking window today
Because BA opens flights on a rolling basis rather than in seasonal batches, there is no single launch date to wait for. The furthest bookable date simply advances by one day, every day. To find today’s booking horizon, take the current date and add 355 days. That is the furthest point you can search on ba.com right now.
| What you want to know | How to find it |
|---|---|
The furthest bookable date today | Today’s date + 355 days |
When a specific future date goes on sale | That date minus 355 days |
How long until a new season opens | Count back 355 days from your target travel date |
Flights open at midnight on the 355th day before departure. Check ba.com directly — some routes and sale fares appear earlier or later than the standard window.
The best time to book BA flights
BA uses dynamic pricing, so fares rise as seats fill. The broad rule is the earlier you book, the better your chances of a lower price, particularly on busy routes, peak dates, and long-haul flights where demand is consistent.
That said, BA occasionally runs sales that can make fares cheaper than launch-day prices, particularly for travel 6-18 months ahead. See the British Airways sale dates guide for the full calendar.
| Strategy | When | What to expect |
|---|---|---|
| Book at 355 days | Day one the flight opens | Best availability, often lowest prices on popular routes. Essential for Avios bookings. |
| Book in a sale | Jan, Mar, Aug, Nov typically | Discounted cash fares for specific travel windows; often 20-30% off standard prices. |
| Book 3-6 months out | Mid-window | Good availability on most routes; fares may have risen on popular summer and peak-date flights. |
| Book last-minute | Under 4 weeks | Almost always more expensive. BA does not typically discount last-minute fares in the way some carriers do. |
BA uses dynamic pricing. No strategy guarantees the cheapest fare. For Avios reward seats, book at 355 days for best availability.
British Airways sales: how to catch them
BA runs five or six named sales a year. The January sale is the biggest, typically launching in the first week of the new year with discounts across short-haul and long-haul routes. There is usually a spring sale in February or March, a summer sale around August, and a Black Friday event in November.
Sales do not change the 355-day booking window: you can only book as far ahead as 355 days regardless. What a sale does is reduce the cash fare for a specific window of travel dates, often 6 to 18 months ahead. See our full guide to British Airways sale dates for confirmed dates and what to watch for.
Frequently asked questions
How far in advance does British Airways release flights?
British Airways releases flights exactly 355 days before the departure date. This applies to cash tickets, Avios reward bookings, and BA Holidays flight-inclusive packages.
What time do BA release flights?
New BA flights enter the booking window at midnight GMT, or 1am during British Summer Time. Avios reward seats are guaranteed to be available at this point on all routes.
Does BA release all flights at once?
No. BA releases flights on a rolling daily basis: each flight becomes available 355 days before it departs, one day at a time. There is no single date when an entire season goes on sale simultaneously.
Can I book a BA flight more than a year in advance?
355 days is BA’s standard limit, which works out to roughly 11 months and 20 days. Flight-inclusive BA Holidays packages follow the same rule; some hotel and car products can be booked further ahead by calling BA directly.
When do BA summer flights go on sale?
BA summer flights go on sale progressively throughout the preceding year, 355 days before each departure date. Flights for July and August go on sale around July and August the year before. There is no single summer sale launch — routes open day by day as each 355-day window matures.
Are Avios reward seats released at the same time as cash seats?
Yes. At midnight GMT when a flight enters the 355-day booking window, BA guarantees four Business Class, two Premium Economy, and eight Economy Avios reward seats. First Class reward seats are not guaranteed but usually appear at some point.
Is it cheaper to book BA flights on the day they are released?
On busy routes, including school holidays, Christmas, and popular long-haul destinations, booking as early as possible usually gives you the best available price, as BA’s dynamic pricing means fares rise as seats sell. On quieter routes, prices can stay low well into the booking window.
When is the next British Airways sale?
See our regularly updated guide to British Airways sale dates for confirmed upcoming sales, typical timing for each, and what discounts to expect.
Does the 355-day window apply to long-haul BA flights?
Yes. The 355-day booking window applies to all BA flights, including long-haul routes to North America, the Caribbean, Asia, and Australia. On long-haul, the 355-day release matters even more: fares are higher and availability on popular routes fills faster.
Once you have booked, it is worth checking whether the route you are flying might appear in flight pricing mistakes and error fares, genuine mispricings that occasionally appear before airlines correct them. For a full overview of what flying with BA involves, see our Flying with British Airways guide.
Looking for the cheapest day to book flights in the UK? We track price patterns across airlines so you can time your purchase for the best possible fare.
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Kate Acaster is Chief Editor at Flight Tribe. She writes about practical travel planning, budget airlines, baggage rules, city breaks, beach holidays and good hotels that do not cost daft money.
Kate has travelled through Europe, South America and beyond, usually with a notebook, a half-formed plan and a strong opinion on airport snacks. At Flight Tribe, her work focuses on helping UK travellers understand what is included, what costs extra, and whether a trip is worth booking at the price shown.
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