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

Our cheapest airline available from Belfast to Boston is British Airways. Our recent data shows that you can find tickets from as low as £415 on this airline. Additional options worth looking into are Delta and KLM, starting at £417 and £419 round-trip. British Airways is currently priced 33% below the average price you’ll pay for this route.

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.

What is the cheapest day to fly from Belfast to Boston?

Travellers seeking maximum savings on their Belfast to Boston flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Belfast to Boston?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 90% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Belfast to Boston?

January can be a great time to fly to Boston from Belfast with a flight ticket averaging about £623. Cheapflights users have found deals in the month of January for as cheap as £371. The most expensive prices can be found in the month of November.

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.

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.

£247+ Flights from Belfast to Boston - Compare & Save Big

Cheap flight deals from Belfast to Boston

Round-trip from	£384
One-way from	£247
Popular in	November
Cheapest in	January
Average price	£651

4/5-12/5
4 total stops
38h 35m total
Belfast to Boston

Search Deals

10/9
2 total stops
15h 25m total
Belfast to Boston

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£58 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 25 April 2025.

Tue 28/1006:00BFS - BOS

2 stops16h 00mMultiple Airlines

Tue 4/1118:20BOS - BFS

2 stops22h 10mMultiple Airlines

Deal found 23/4£361

Mon 5/513:50BHD - BOS

1 stop11h 20mBritish Airways

Wed 14/520:05BOS - BHD

1 stop10h 50mBritish Airways

Deal found 24/4£415

Mon 5/506:30BHD - BOS

1 stop14h 55mDelta

Wed 14/520:45BOS - BHD

2 stops15h 10mDelta

Deal found 24/4£417

Sun 4/517:25BHD - BOS

1 stop25h 10mKLM

Mon 12/520:45BOS - BHD

2 stops15h 10mKLM

Deal found 23/4£419

Sun 4/520:05BHD - BOS

1 stop20h 05mMultiple Airlines

Tue 13/513:20BOS - BHD

2 stops18h 40mMultiple Airlines

Deal found 24/4£431

Tue 28/1011:30BHD - BOS

2 stops15h 19mAmerican Airlines

Tue 4/1122:00BOS - BHD

1 stop13h 45mAmerican Airlines

Deal found 23/4£544

Thu 24/416:20BHD - BOS

1 stop11h 15mIberia

Tue 29/421:55BOS - BHD

1 stop12h 25mIberia

Deal found 23/4£1,048

Best flights from Belfast to Boston
Discover carefully curated flight deals from Belfast to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2025.

Sun 4/507:00BFS - BOS

2 stops15h 50mMultiple Airlines

Mon 12/519:15BOS - BFS

2 stops22h 45mMultiple Airlines

Deal found 23/4£384

Mon 5/513:50BHD - BOS

1 stop11h 20mBritish Airways

Wed 14/520:05BOS - BHD

1 stop10h 50mBritish Airways

Deal found 24/4£415

Mon 5/506:30BHD - BOS

1 stop14h 55mDelta

Wed 14/520:45BOS - BHD

2 stops15h 10mDelta

Deal found 24/4£417

Sun 4/517:25BHD - BOS

1 stop28h 00mKLM

Tue 13/518:35BOS - BHD

1 stop21h 30mKLM

Deal found 23/4£419

Sun 4/520:05BHD - BOS

1 stop20h 05mMultiple Airlines

Tue 13/513:20BOS - BHD

2 stops18h 40mMultiple Airlines

Deal found 24/4£431

Last-minute flights from Belfast to Boston
Discover last-minute flight deals from Belfast to Boston. Data last updated 25 April 2025 and is based on user searches.

Thu 24/414:15BHD - BOS

1 stop13h 20mAmerican Airlines

Mon 28/422:00BOS - BHD

1 stop9h 55mAmerican Airlines

Deal found 23/4£1,038

Thu 24/416:20BHD - BOS

1 stop11h 15mIberia

Tue 29/421:55BOS - BHD

1 stop12h 25mIberia

Deal found 23/4£1,048

Sun 4/507:00BFS - BOS

2 stops15h 50mMultiple Airlines

Mon 12/519:15BOS - BFS

2 stops22h 45mMultiple Airlines

Deal found 23/4£384

Sun 4/517:25BHD - BOS

1 stop25h 10mKLM

Mon 12/520:45BOS - BHD

2 stops15h 10mKLM

Deal found 23/4£419

Sun 4/520:05BHD - BOS

1 stop20h 05mBritish Airways

Tue 13/519:40BOS - BHD

1 stop9h 55mBritish Airways

Deal found 24/4£428

Sun 4/520:05BHD - BOS

1 stop20h 05mMultiple Airlines

Tue 13/513:20BOS - BHD

2 stops18h 40mMultiple Airlines

Deal found 24/4£431

Sun 4/506:30BHD - BOS

1 stop14h 55mDelta

Tue 13/517:05BOS - BHD

2 stops23h 00mDelta

Deal found 23/4£449

Mon 5/513:50BHD - BOS

1 stop11h 20mBritish Airways

Wed 14/520:05BOS - BHD

1 stop10h 50mBritish Airways

Deal found 24/4£415

Mon 5/506:30BHD - BOS

1 stop14h 55mDelta

Wed 14/520:45BOS - BHD

2 stops15h 10mDelta

Deal found 24/4£417

One-way flights from Belfast to Boston
Search for one-way flight options from Belfast to Boston. Find affordable one-way fares based on user searches. Data last updated 25 April 2025.

Wed 10/907:25BFS - BOS

2 stops15h 25mMultiple Airlines

Deal found 22/4£247

Sun 18/507:05BHD - BOS

2 stops43h 00mMultiple Airlines

Deal found 23/4£294

Wed 10/906:50BHD - BOS

2 stops16h 55mAer Lingus

Deal found 22/4£442

Tue 7/1006:35BHD - BOS

1 stop15h 35mBritish Airways

Deal found 23/4£582

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Sun 4/5

07:00-17:50

2 stops15h 50m

Boston Logan Intl

Mon 12/5

19:15-23:00

2 stops22h 45m

£384

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Mon 5/5

13:50-20:10

1 stop11h 20m

Boston Logan Intl

Wed 14/5

20:05-11:55

1 stop10h 50m

£415

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Mon 5/5

06:30-16:25

1 stop14h 55m

Boston Logan Intl

Wed 14/5

20:45-16:55

2 stops15h 10m

£417

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 4/5

17:25-16:25

1 stop28h 00m

Boston Logan Intl

Tue 13/5

18:35-21:05

1 stop21h 30m

£419

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 4/5

20:05-11:10

1 stop20h 05m

Boston Logan Intl

Tue 13/5

13:20-13:00

2 stops18h 40m

£431

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Wed 10/9

07:25-17:50

2 stops15h 25m

£247

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 18/5

07:05-21:05

2 stops43h 00m

£294

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Wed 10/9

06:50-18:45

2 stops16h 55m

£442

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 7/10

06:35-17:10

1 stop15h 35m

£582

Flights are sorted by cheapest return flights first.

Deals found on 22/4

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?

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

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

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 a feel of what it's like to fly with Delta, KLM and Aer Lingus from Belfast to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,920 reviews

Check prices

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

7,920 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

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

1,333 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

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

Aer Lingus

7.0

Good

1,068 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

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

6,809 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

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

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 British Airways. Our recent data shows that you can find tickets from as low as £415 on this airline. Additional options worth looking into are Delta and KLM, starting at £417 and £419 round-trip. British Airways is currently priced 33% 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

Cambridge

Somerville

Quincy

Chelmsford

Burlington

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Belfast to Boston

Belfast Intl to Boston flights

Belfast City to Boston flights

Belfast Intl to Hartford flights

Belfast City to Hartford flights

Other flights to Boston

Top airline flying from Belfast to Boston

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£348	Average£554	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Belfast to Boston from £247

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to Boston

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Belfast to Boston

Cheapest flights from Belfast to BostonExplore 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 25 April 2025.

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 25 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to Boston that are best for you.

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.

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 25 April 2025.

Rainfall in Boston by month

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

Temperature in Boston by month

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

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 25 April 2025.

Get a feel of what it's like to fly with Delta, KLM and Aer Lingus from Belfast to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I find direct flights from Belfast to Boston?

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

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

Travelling to a place near Belfast?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to Boston

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Belfast to Boston

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?

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

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

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

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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 25 April 2025.