Title: Cheap Flights from Boston to Belfast (BOS to BFS) - Expedia.co.uk ![](https://images.trvl-media.com/place/6034919/409864ad-0adb-4a19-a7e9-f03dc552810c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6034919/409864ad-0adb-4a19-a7e9-f03dc552810c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Boston (BOS) to Belfast (BFS) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Logan International Airport (BOS) to Belfast International Airport (BFS) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![easyJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_U2.svg) easyJet [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"U2"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Ryanair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FR.svg) Ryanair [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FR"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Jet2](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LS.svg) Jet2 [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:bos,to:bfs,departure:16/11/2025TANYT&leg2=from:bfs,to:bos,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Boston (BOS) to Belfast (BFS) ### October is typically the cheapest month to fly From £394 - £586 per traveller. ## Alternative airports near Belfast Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:BHD,departure:16/11/2025TANYT&leg2=from:BHD,to:BOS,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) BHD George Best Belfast City CheapestClosest 6 min [Flights from £423](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:BHD,departure:16/11/2025TANYT&leg2=from:BHD,to:BOS,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) Flight from Boston to Belfast route information | Origin airport | Logan Intl. | | --- | --- | | Destination airport | Belfast Intl. | | Distance | 4750 km | ## Compare flights from Boston to Belfast easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to Belfast. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Belfast Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Belfast Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Logan Intl. (BOS) to Belfast Intl. (BFS) The easiest way to view the best deals on flights from Boston to Belfast today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Belfast Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Boston and Belfast - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Boston to Belfast flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Belfast Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Logan Intl. Airport to Belfast International Airport? > Round-trip journeys between Logan Intl. Airport (BOS) and BFS start from . This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport to Belfast International Airport? > This differs from airline to airline, as each has its own set of terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where you'll find simple instructions on how to cancel online. ### How do I find cheap flights from Logan Intl. Airport to Belfast Intl. Airport (BFS) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Logan Intl. Airport to Belfast Intl. Airport (BFS) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from BOS to Belfast International Airport? > You'll have 4,800 kilometres to cover on the long-haul Boston to Crumlin route. Wear comfy clothes and consider taking a neck pillow with you. ### Which airlines fly direct from Logan Intl. Airport to BFS? > Flying directly between Logan Intl. Airport (BOS) and Belfast International Airport isn't possible at the moment. However, you'll still be able to book a flight to Crumlin with at least one stop. ### Are Logan Intl. Airport to Belfast International Airport flight tickets cheaper when they're purchased at the last minute? > Airline tickets from Logan Intl. Airport (BOS) to BFS are available up to 12 months before departure on Expedia. And although you may nab a fantastic last-minute deal, it's not something you should count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! We're always updating our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Aberdeen (ABZ) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/abz/bhd/aberdeen-to-belfast) - [Flights from Accra (ACC) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/acc/bhd/accra-to-belfast) - [Flights from Izmir (ADB) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/adb/bhd/izmir-to-belfast) - [Flights from Addis Ababa (ADD) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/add/bhd/addis-ababa-to-belfast) - [Flights from Algiers (ALG) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/alg/bhd/algiers-to-belfast) - [Flights from Ahmedabad (AMD) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/amd/bhd/ahmedabad-to-belfast) - [Flights from Amsterdam (AMS) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/ams/bhd/amsterdam-to-belfast) - [Flights from Berlin (BER) to Belfast (BHD)](https://www.expedia.co.uk/lp/flights/ber/bhd/berlin-to-belfast) - 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