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$307+ Cheap flights from Belfast Intl (BFS) to Boston (BOS)

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BOS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$536
(flugladen.de)

One-way from

$307
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$663
From Belfast Intl to Boston Logan Intl
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One-way flight from Belfast Intl to Boston Logan Intl
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Highest demand for flights based on searches. 9% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Belfast Intl to Boston

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 September 17, 2025.

This flugladen.de deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:40 amBFS - BOS
2 stops35h 40mMultiple Airlines
Mon 11/108:00 pmBOS - BFS
1 stop15h 15mMultiple Airlines
Deal found 9/16$536
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:00 pmBFS - BOS
2 stops27h 35mMultiple Airlines
Sat 11/87:50 pmBOS - BFS
2 stops20h 50mMultiple Airlines
Deal found 9/17$647
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:20 pmBFS - BOS
3 stops46h 15mMultiple Airlines
Thu 11/611:35 amBOS - BFS
2 stops30h 00mMultiple Airlines
Deal found 9/15$650
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:35 amBFS - BOS
1 stop16h 40mMultiple Airlines
Fri 10/2411:00 pmBOS - BFS
2 stops19h 20mMultiple Airlines
Deal found 9/16$688
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:35 amBFS - BOS
1 stop16h 40mMultiple Airlines
Wed 10/229:25 pmBOS - BFS
2 stops20h 30mMultiple Airlines
Deal found 9/15$692

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Boston that are best for you.

Fly from

Belfast Intl

Fly to

Boston

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 11/3

6:40 am-1:20 pm

2 stops35h 40m

Boston Logan Intl

Mon 11/10

8:00 pm-4:15 pm

1 stop15h 15m

$536

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 3/1

11:00 am-1:20 pm

2 stops31h 20m

Boston Logan Intl

Thu 3/5

8:00 pm-9:35 pm

1 stop20h 35m

$564

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 11/1

4:00 pm-3:35 pm

2 stops27h 35m

Boston Logan Intl

Sat 11/8

7:50 pm-9:40 pm

2 stops20h 50m

$647

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Thu 10/30

9:20 pm-3:35 pm

3 stops46h 15m

Boston Logan Intl

Thu 11/6

11:35 am-10:35 pm

2 stops30h 00m

$650

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Thu 10/16

7:10 am-9:15 pm

2 stops19h 05m

$307

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 11/15

7:25 am-8:55 pm

2 stops18h 30m

$386

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 10/18

9:05 pm-8:05 pm

3 stops52h 00m

$450

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 10/17

5:05 pm-3:35 pm

3 stops27h 30m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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 round-trip 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?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Belfast Intl. On average, Logan Intl has 0 inbound flights from Belfast Intl per day from 0 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Belfast Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to Boston (average of $218). Flying from Belfast Intl Airport to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Old Orchard Beach
Brockton
Waltham

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Alternative routes for Belfast Intl to Boston

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