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Cheap flights from Belfast Intl Airport to Boston from £225

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BOS
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£393

One-way from

£225

Popular in

December

Cheapest in

February

Average price

£486
3/11-10/11
  • 3/11-10/11
  • 3 total stops
  • 50h 55m total
  • Belfast to Boston
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16/10
  • 16/10
  • 2 total stops
  • 19h 05m total
  • Belfast to Boston
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£38 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return 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 17 September 2025.

Mon 3/1106:40BFS - BOS
2 stops35h 40mMultiple Airlines
Mon 10/1120:00BOS - BFS
1 stop15h 15mMultiple Airlines
Deal found 16/9£393
Thu 30/1021:20BFS - BOS
3 stops46h 15mMultiple Airlines
Thu 6/1111:35BOS - BFS
2 stops30h 00mMultiple Airlines
Deal found 15/9£477
Wed 15/1009:35BFS - BOS
1 stop16h 40mMultiple Airlines
Fri 24/1023:00BOS - BFS
2 stops19h 20mMultiple Airlines
Deal found 16/9£504
Wed 15/1009:35BFS - BOS
1 stop16h 40mMultiple Airlines
Wed 22/1021:25BOS - BFS
2 stops20h 30mMultiple Airlines
Deal found 15/9£507
Wed 15/1009:35BFS - BOS
1 stop16h 40mMultiple Airlines
Tue 21/1017:30BOS - BFS
2 stops12h 50mMultiple Airlines
Deal found 16/9£529

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 17 September 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 3/11

06:40-13:20

2 stops35h 40m

Boston Logan Intl

Mon 10/11

20:00-16:15

1 stop15h 15m

£393

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 1/3

11:00-13:20

2 stops31h 20m

Boston Logan Intl

Thu 5/3

20:00-21:35

1 stop20h 35m

£414

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Thu 30/10

21:20-15:35

3 stops46h 15m

Boston Logan Intl

Thu 6/11

11:35-22:35

2 stops30h 00m

£477

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Wed 15/10

09:35-21:15

1 stop16h 40m

Boston Logan Intl

Fri 24/10

23:00-23:20

2 stops19h 20m

£504

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Wed 15/10

09:35-21:15

1 stop16h 40m

Boston Logan Intl

Wed 22/10

21:25-22:55

2 stops20h 30m

£507

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Wed 15/10

09:35-21:15

1 stop16h 40m

Boston Logan Intl

Mon 20/10

21:25-16:10

2 stops13h 45m

£529

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Thu 16/10

07:10-21:15

2 stops19h 05m

£225

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 1/11

16:00-15:35

2 stops27h 35m

£255

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sat 18/10

21:05-20:05

3 stops52h 00m

£330

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 17/10

17:05-15:35

3 stops27h 30m

£452

Flights are sorted by cheapest return flights first.

Deals found on 16/9

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.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 17 September 2025.
Get a feel of what it's like to fly with British Airways from Belfast Intl Airport to Boston by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,363 reviews
Check prices

Comfort

6.7

Food

6.3

Crew

7.6

Boarding

6.9

Overall

6.7

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,363 reviews
British Airways
6.7
Okay
7,363 reviews
Check prices

Comfort

6.7

Food

6.3

Crew

7.6

Boarding

6.9

Overall

6.7

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

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 1 airline.

  • What is the cheapest airline to fly from Belfast Intl Airport to Boston round-trip?

    Currently priced at £388, British Airways will fly you from Belfast Intl Airport to Boston and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 25% lower than the current average price of a flight leaving 3 months from now.

  • 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.

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

    Currently, October is the cheapest month in which you can book a flight from Belfast Intl Airport to Boston (average of £10). Flying from Belfast Intl Airport to Boston in July is currently the most expensive (average of £724). 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

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Peabody
Cambridge
Somerville
Quincy
Chelmsford

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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.
Belfast City to Boston flights
Belfast City to Hartford flights

Top airline flying from Belfast Intl to Boston

Discover the top airline that operate flights from Belfast Intl to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£388Average£505FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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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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