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Cheap flights from Boston to Belfast from £354

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
25 Jan — 1 Feb1
1 adult

Cheap flight deals from Boston to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Belfast (BF1). 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 20 January 2025.

Round-trip from

£379

One-way from

£354

Popular in

July

Cheapest in

November
4/3-11/3
  • 4/3-11/3
  • 4 total stops
  • 33h 55m total
  • Boston to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 31/5
  • 2 total stops
  • 12h 40m total
  • Boston to Belfast
Search Deals
High demand for flights, 17% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals

Find flight deals from Boston to Belfast

Cheapest flights from Boston to Belfast
Explore the most affordable flight options available from Boston to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 January 2025.

Tue 4/318:20BOS - BFS
2 stops17h 40mMultiple Airlines
Tue 11/305:45BFS - BOS
2 stops16h 15mMultiple Airlines
Deal found 19/1£379
Wed 8/1021:55BOS - BHD
1 stop12h 40mBritish Airways
Fri 17/1009:30BHD - BOS
1 stop12h 40mBritish Airways
Deal found 19/1£490
Tue 29/419:40BOS - BHD
1 stop9h 55mFinnair
Mon 5/519:30BHD - BOS
1 stop20h 35mFinnair
Deal found 19/1£500
Tue 14/1017:04BOS - BHD
2 stops12h 31mAmerican Airlines
Wed 22/1011:30BHD - BOS
1 stop13h 40mAmerican Airlines
Deal found 19/1£512
Wed 8/1016:30BOS - BHD
2 stops14h 25mIberia
Fri 17/1006:35BHD - BOS
2 stops18h 15mIberia
Deal found 19/1£541
Sun 23/322:15BOS - BHD
1 stop14h 35mDelta
Sat 29/317:20BHD - BOS
1 stop24h 20mDelta
Deal found 19/1£548
Mon 17/220:00BOS - BHD
2 stops19h 30mMultiple Airlines
Mon 24/207:25BHD - BOS
3 stops30h 03mMultiple Airlines
Deal found 20/1£569
Fri 21/322:20BOS - BHD
2 stops16h 55mAer Lingus
Thu 27/306:35BHD - BOS
2 stops17h 20mAer Lingus
Deal found 19/1£683
Sat 22/320:10BOS - BHD
1 stop20h 50mKLM
Wed 26/306:30BHD - BOS
2 stops16h 40mKLM
Deal found 19/1£1,210

Find flights from Boston to Belfast within your budget

Customise your flight search to find flights from Boston to Belfast 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 20 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 4/3

18:20-17:00

2 stops17h 40m

Belfast Intl

Tue 11/3

05:45-18:00

2 stops16h 15m

£379

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 29/4

19:40-10:35

1 stop9h 55m

Belfast City

Mon 5/5

19:30-11:05

1 stop20h 35m

£500

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 5/2

22:00-16:35

1 stop13h 35m

Belfast City

Sun 9/2

09:10-19:35

1 stop15h 25m

£510

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 23/3

22:15-16:50

1 stop14h 35m

Belfast City

Sat 29/3

17:20-13:40

1 stop24h 20m

£548

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 17/2

20:00-20:30

2 stops19h 30m

Belfast City

Mon 24/2

07:25-08:28

3 stops30h 03m

£569

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 21/3

22:20-19:15

2 stops16h 55m

Belfast City

Thu 27/3

06:35-19:55

2 stops17h 20m

£683

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 16/7

20:20-11:55

1 stop10h 35m

Belfast City

Sun 20/7

13:00-00:16

2 stops16h 16m

£1,015

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 22/3

20:10-21:00

1 stop20h 50m

Belfast City

Wed 26/3

06:30-19:10

2 stops16h 40m

£1,210

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 31/5

18:35-12:15

2 stops12h 40m

£354

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 31/5

19:40-10:10

1 stop9h 30m

£500

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Best time to book a flight from Boston to Belfast

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

Travel insights for flights from Boston to Belfast

Get recent, data-driven insights about flights from Boston to Belfast including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Belfast (average of £67). Flying from Boston to Belfast in July is currently the most expensive (average of £90). 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.

Rainfall in Belfast by month

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

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

Temperature in Belfast by month

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

If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 20 January 2025.
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus
7.1
Good
1,079 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Boston to Belfast. 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 from for flights from Boston to Belfast?

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

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

    Flying on Finnair is currently your cheapest option to Belfast, with prices starting at £500. Additional return tickets that might be worth considering are offered by British Airways and Delta, with the lowest prices starting at £510 and £548, respectively. Finnair is priced at 19% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Belfast 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 Boston to Belfast?

    Currently, January is the cheapest month in which you can book a flight from Boston to Belfast (average of £67). Flying from Boston to Belfast in July is currently the most expensive (average of £90). 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

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Alternative routes for Boston to Belfast

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

Fly with Cheapflights

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

Cheapflights makes it easy to find Boston to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights simply makes it quick and affordable to book flights from Boston to Belfast 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 Boston to Belfast with no change fees?

Certainly. Search results for flights to Belfast from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Boston to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.

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