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.

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).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast Intl Airport to Boston as you normally would.

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 0 different airlines.

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.

£223+ Cheap Flights from Belfast Intl Airport to Boston

Cheap flight deals from Belfast Intl to Boston

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 6 September 2026.

Wed 21/1021:35 -

2 stops27h 20m

Wed 28/1022:50 -

2 stops19h 10m

Deal found 6/9£535

Tue 20/1016:00 -

2 stops33h 20m

Tue 27/1019:00 -

2 stops22h 30m

Deal found 5/9£541

Sun 18/1017:05 -

2 stops32h 15m

Sun 25/1019:00 -

2 stops22h 25m

Deal found 3/9£590

Fri 2/1006:05 -

2 stops18h 30m

Thu 8/1017:10 -

2 stops21h 10m

Deal found 2/9£629

Find flight deals from Belfast Intl to Boston

Round-trip from	£535
One-way from	£223

21/10-28/10
4 total stops
46h 30m total
Belfast to Boston

Search Deals

21/10-31/12
3 total stops
34h 25m total
Belfast to Boston

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Wed 21/10

15:40-21:05

3 stops34h 25m

Boston Logan Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£223

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Sat 24/10

21:40-20:05

3 stops51h 25m

Boston Logan Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£374

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Wed 21/10

21:35-19:55

2 stops27h 20m

Boston Logan Intl

Wed 28/10

22:50-22:00

2 stops19h 10m

£535

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Tue 20/10

16:00-20:20

2 stops33h 20m

Boston Logan Intl

Tue 27/10

19:00-21:30

2 stops22h 30m

£541

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Sun 18/10

17:05-20:20

2 stops32h 15m

Boston Logan Intl

Sun 25/10

19:00-21:25

2 stops22h 25m

£590

Fastest return journey

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Fri 2/10

06:05-19:39

3 stops18h 34m

Boston Logan Intl

Thu 8/10

17:25-11:50

2 stops13h 25m

£702

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Tue 13/10

05:55-20:20

2 stops19h 25m

Boston Logan Intl

Sat 17/10

20:50-16:35

2 stops14h 45m

£761

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Sat 10/10

21:30-16:05

2 stops23h 35m

Boston Logan Intl

Sun 18/10

23:00-18:50

2 stops14h 50m

£791

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Sorted by cheapest first

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.

BFS-BOS

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.

Related info for your journey

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 0 different airlines.
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.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Boston from Belfast Intl today with Cheapflights!

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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Cheap flights from Belfast Intl Airport to Boston from £223

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast Intl to Boston

Cheapest flights from Belfast Intl to BostonExplore 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 6 September 2026.

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 6 September 2026.

Best flights from Belfast Intl to BostonDiscover carefully curated flight deals from Belfast Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Discover carefully curated flight deals from Belfast Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Belfast Intl to BostonDiscover last-minute flight deals from Belfast Intl to Boston. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Boston. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Belfast Intl to BostonSearch for one-way flight options from Belfast Intl to Boston. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from Belfast Intl to Boston. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Find flight deals from Belfast Intl to Boston

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Cheapflights Fare Finder

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

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.

Related info for your journey

What airport do you fly into for flights to Boston from Belfast Intl?

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

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

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

Travelling to a place near Boston?

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 Intl to Boston

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

Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 September 2026.

Complete your trip

Complete your trip to Boston by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Massachusetts

Book a non-stop flight to one of these other cities located in Massachusetts.

Search flights from Belfast Intl to Boston by cabin class

Find flights from Belfast Intl to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast Intl and Boston flights

Browse other Belfast Intl and Boston flight options. Last updated on 6 September 2026.

Other flights from Belfast Intl

Browse through other flights departing from Belfast Intl. Flights are based on user searches made on Cheapflights and were last updated on 6 September 2026.

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Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

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Book with Flexibility

Travel Smart

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 6 September 2026.

Best flights from Belfast Intl to Boston
Discover carefully curated flight deals from Belfast Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Belfast Intl to Boston
Discover last-minute flight deals from Belfast Intl to Boston. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Belfast Intl to Boston
Search for one-way flight options from Belfast Intl to Boston. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.