Book British Airways flights (BA)

With a modern fleet, hours of in-flight entertainment, and exceptional onboard service, British Airways flights from $449 are one of the best ways to hop across the pond in 2025. This founding member of the Oneworld alliance will take you from countless US airports directly to London. From there, Europe's your playground thanks to the airline's multitude of regional flights. Whether it's Big Ben, the Eiffel Tower, or the Sagrada Família, you'll find some of the cheapest British Airways deals on Expedia.

Guide to British Airways flights

What it's like to fly with British Airways

Book a flight with British Airways this 2025 and enjoy spacious seats, stylish interiors, and some of the best British movies and TV shows through the back-of-seat entertainment. For trans-Atlantic flights, choose from one of 4 cabins: World Traveller (economy), World Traveller Plus (premium economy), Club World (business class), and First. British Airways Wi-Fi is available on most flights, allowing you to scroll and post on social media while you're in the sky. The airline's High Life Café offers an enticing selection of food and drink, with complimentary three-course meals available in all cabins on many longer international flights.

Destinations British Airways flies to

You can book British Airways tickets from the United States direct into London Heathrow. Some of the most popular routes in 2025 include New York to London and Los Angeles to London. There are departures from most major airports in the US, too, including Houston, San Francisco, Chicago, and more. Then, from London, you'll find countless British Airways flights to popular destinations across Europe, from buzzing cities like Berlin to popular beach spots like Ibiza.

Check-in information for British Airways

For most flights, British Airways check-in is available online from 24 hours before take-off. To access your boarding passes online, grab your British Airways booking code or ticket number from the Expedia app and go to the airline's Online Check-in page to fill in the details.

Great deals with British Airways on Expedia

Whether it's a road trip through Great Britain's rolling green countryside or interrailing around Northern Europe's grand capital cities, Expedia's amazing British Airways deals could take you there for less. And, if you want to save even more on your adventure across the pond, consider bundling together your flights with your car rental and hotels. This way, you could unlock Expedia's epic package savings.

British Airways reviews

Read British Airways reviews left by fellow Expedia travelers on this page. This will help you gauge what the plane and onboard services are like.

How to find cheap British Airways flights on Expedia

To bag British Airways cheap tickets from $449, try to book at least a few months in advance, especially if you're traveling during the summer high season or the festive season. You can also consider adding a stopover with British Airways instead of booking a direct flight as this can sometimes be cheaper.

British Airways's carry-on baggage allowance

The British Airways carry-on allowance is usually 1 bag with dimensions of up to 22 x 18 x 10 inches and 1 personal item for most flights. This includes a briefcase, shopping bag, or purse. You must be able to fit your carry-on items under the seat in front of you or in the overhead compartments. This is usually included for free on most British Airways flights.

British Airways's check-in baggage allowance

For economy cabins, the standard British Airways baggage allowance is 1 bag of up to 50 lbs. Keep in mind that checked baggage may not be included in certain promotional economy fares. You’ll find this information clearly displayed on Expedia. Typically for premium economy, you can check in 2 bags of up to 50 lbs. each. In Business, the allowance is 2 bags up to 70 lbs. each, while in First, you get 3 bags of up to 70 lbs.

Earning frequent-flier miles with British Airways when booking on Expedia

With the Executive Club frequent flier program, you'll earn British Airways miles, known as Avios, for all Oneworld airline flights you take. And yes, you'll rack up the same mileage for flights booked on Expedia, too. Then there's Expedia's rewards program: One Key. It's free to join, and you can earn OneKeyCash on most bookings, including flights, hotels, and car rentals. Members even get access to great discounts.

Flexible booking and cancellations for British Airways flights

Some British Airways reservations may allow for changes and cancellations, but this depends on the type of fare you buy. If you need flexible British Airways tickets, you can check the “no cancel fee” and “changes allowed” search filters when comparing prices on Expedia. For more information, visit the Help Center or contact our customer service team to discuss your options.