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Cheap flights from Belfast to Boston from £334

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — BOS
5 Apr — 12 Apr1
1 adult

Cheap flight deals from Belfast to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) 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 31 March 2025.

Round-trip from

£390

One-way from

£334

Popular in

November

Cheapest in

January

Average price

£524
16/5-20/5
  • 16/5-20/5
  • 4 total stops
  • 39h 30m total
  • Belfast to Boston
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22/7
  • 22/7
  • 3 total stops
  • 40h 44m total
  • Belfast to Boston
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£52 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Belfast to Boston

Cheapest flights from Belfast to Boston
Explore the most affordable flight options available from Belfast to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Fri 16/506:15BFS - BOS
2 stops16h 35mMultiple Airlines
Tue 20/519:15BOS - BFS
2 stops22h 55mMultiple Airlines
Deal found 30/3£390
Sun 4/517:25BHD - BOS
1 stop28h 00mKLM
Mon 12/516:40BOS - BHD
1 stop23h 35mKLM
Deal found 30/3£420
Sun 4/506:30BHD - BOS
2 stops17h 29mDelta
Mon 12/520:45BOS - BHD
2 stops19h 30mDelta
Deal found 30/3£453
Thu 3/716:20BHD - BOS
1 stop29h 50mMultiple Airlines
Thu 17/707:25BOS - BHD
1 stop30h 55mMultiple Airlines
Deal found 30/3£499
Thu 3/719:25BHD - BOS
2 stops26h 52mBritish Airways
Thu 17/719:40BOS - BHD
1 stop10h 30mBritish Airways
Deal found 30/3£511
Sun 20/715:50BHD - BOS
1 stop11h 50mFinnair
Wed 30/717:56BOS - BHD
2 stops14h 34mFinnair
Deal found 30/3£633

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast 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 31 March 2025.
Use the filters below to find and compare flights from Belfast to Boston that are best for you.

Fly from

Belfast

Fly to

Boston

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 16/5

06:15-17:50

2 stops16h 35m

Boston Logan Intl

Tue 20/5

19:15-23:10

2 stops22h 55m

£390

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 4/5

17:25-13:35

1 stop25h 10m

Boston Logan Intl

Mon 12/5

20:45-16:55

2 stops15h 10m

£420

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 4/5

06:30-18:59

2 stops17h 29m

Boston Logan Intl

Mon 12/5

20:45-21:15

2 stops19h 30m

£453

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Thu 3/7

16:20-17:10

1 stop29h 50m

Boston Logan Intl

Thu 17/7

07:25-19:20

1 stop30h 55m

£499

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Thu 3/7

19:25-17:17

2 stops26h 52m

Boston Logan Intl

Thu 17/7

19:40-11:10

1 stop10h 30m

£511

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 20/7

15:50-22:40

1 stop11h 50m

Boston Logan Intl

Wed 30/7

17:56-13:30

2 stops14h 34m

£633

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Tue 22/7

22:55-10:39

3 stops40h 44m

£334

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 22/7

10:20-18:45

2 stops13h 25m

£583

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 22/7

16:25-22:40

1 stop11h 15m

£645

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Best time to book a flight from Belfast to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Belfast 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Boston

What is the cheapest time of day to fly from BFS to BOS?

Find hourly flight availability from Belfast to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 March 2025.

It’s typically best to fly out from Belfast to Boston at midday. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 31 March 2025.
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,899 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Iberia
7.0
Good
2,653 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
British Airways
6.6
Okay
6,713 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belfast 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?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Belfast. On average, Logan Intl has 0 inbound flights from Belfast per day from 1 airline. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • What are the cheapest airlines flying from Belfast to Boston round-trip?

    Our cheapest airline available from Belfast to Boston is KLM. Our recent data shows that you can find tickets from as low as £420 on this airline. Additional options worth looking into are Delta and British Airways, starting at £453 and £511 round-trip. KLM is currently priced 35% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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 to Boston?

    Currently, October is the cheapest month in which you can book a flight from Belfast to Boston (average of £10). Flying from Belfast 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 Belfast?

Book flights to Belfast if you plan to visit one of these locations
Cambridge
Somerville
Quincy
Chelmsford
Chelsea
Burlington
Kittery

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Alternative routes for Belfast to Boston

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

Top airline flying from Belfast to Boston

Discover the top airline that operate flights from Belfast 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 31 March 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£358Average£574FlexibilityNo cancel feeOn-time70%
Search British Airways 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 to Boston?

Cheapflights helps you search for flights from Belfast to Boston via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Belfast to Boston by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Belfast 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 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 to Boston become cheaper?

Yes! Start tracking prices for Belfast to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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