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Cheap flights from Belfast Intl Airport to Boston from £289

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BOS
23 Aug — 30 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Boston

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Boston
Explore the most affordable flight options available from Belfast Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 July 2026.

Wed 16/921:35
BFS
-
BOS
2 stops27h 45m
Multiple Airlines
Sun 20/922:40
BOS
-
BFS
2 stops16h 35m
Multiple Airlines
Deal found 24/7£512
Mon 7/921:35
BFS
-
BOS
2 stops26h 00m
Multiple Airlines
Mon 14/920:50
BOS
-
BFS
2 stops18h 35m
Multiple Airlines
Deal found 23/7£575
Tue 18/822:45
BFS
-
BOS
2 stops24h 37m
Multiple Airlines
Mon 24/823:00
BOS
-
BFS
2 stops18h 25m
Multiple Airlines
Deal found 20/7£580
Mon 17/821:50
BFS
-
BOS
2 stops25h 37m
Multiple Airlines
Sun 23/810:50
BOS
-
BFS
2 stops26h 35m
Multiple Airlines
Deal found 20/7£590
Sun 6/922:10
BFS
-
BOS
3 stops38h 00m
Multiple Airlines
Sun 13/910:05
BOS
-
BFS
2 stops27h 45m
Multiple Airlines
Deal found 23/7£601

Find flight deals from Belfast Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 July 2026.

Round-trip from

£512

One-way from

£289
16/9-20/9
  • 16/9-20/9
  • 4 total stops
  • 44h 20m total
  • Belfast to Boston
Search Deals
23/8
  • 23/8
  • 3 total stops
  • 49h 50m total
  • Belfast to Boston
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 July 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Wed 16/9

21:35-20:20

2 stops27h 45m

Boston Logan Intl

Sun 20/9

22:40-20:15

2 stops16h 35m

£512

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 17/8

21:50-18:27

2 stops25h 37m

Boston Logan Intl

Sun 23/8

10:50-18:25

2 stops26h 35m

£590

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 6/9

22:10-07:10

3 stops38h 00m

Boston Logan Intl

Sun 13/9

10:05-18:50

2 stops27h 45m

£601

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Tue 15/9

22:30-14:45

3 stops45h 15m

Boston Logan Intl

Fri 18/9

20:50-21:50

2 stops20h 00m

£635

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 18/9

17:20-20:20

1 stop32h 00m

Boston Logan Intl

Fri 25/9

21:15-21:15

2 stops19h 00m

£652

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 4/9

18:35-18:50

2 stops29h 15m

Boston Logan Intl

Fri 11/9

17:25-21:15

2 stops22h 50m

£663
Cheapest one-way

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 23/8

22:00-18:50

3 stops49h 50m

£289
Fastest single journey

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 1/8

22:25-21:45

3 stops28h 20m

£515

Flights are sorted by cheapest return flights first.

Deals found on 20/7

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Belfast Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boston from Belfast Intl?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Boston from Belfast Intl. Booking flights from Belfast Intl to Logan Intl (BOS) should be relatively easy as there are 0 daily inbound flights from Belfast Intl from 0 different airlines.

  • Can I find deals for flights from Belfast Intl to Boston that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Boston.

  • Can I find deals for business class flights from Belfast Intl to Boston?

    Yes. Cheapflights offers flight deals from Belfast Intl to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Canton
North Truro
Waltham
Warwick
Cambridge
Peabody
Wellfleet
Revere
Somerville
Quincy
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Belfast Intl to Hartford flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast Intl to Boston?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Boston from Belfast Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Boston?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to Boston.

Can Cheapflights find flights from Belfast Intl to Boston with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to Boston, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Belfast Intl to Boston become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from Belfast Intl today and book when prices fit your budget.

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