In terms of precipitation, rainfall in Belfast Intl Airport 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 Intl Airport when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast Intl Airport, 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).

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

When flying from Boston to Belfast Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

If you book a flight to Belfast Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 0 flights from Logan Intl to Belfast Intl per day from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Boston to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£265+ Cheap Flights from Boston to Belfast Intl Airport

Cheap flight deals from Boston to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Boston to Belfast Intl
Explore the most affordable flight options available from Boston to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Sun 15/1119:50 -

2 stops19h 40m

Tue 1/1206:40 -

2 stops16h 10m

Deal found 24/9£561

Sat 14/1119:50 -

2 stops17h 25m

Sat 21/1123:00 -

3 stops25h 55m

Deal found 25/9£564

Mon 26/1020:50 -

2 stops15h 35m

Tue 10/1118:25 -

2 stops24h 20m

Deal found 28/9£609

Sun 8/1117:15 -

2 stops14h 40m

Sun 15/1106:30 -

2 stops18h 30m

Deal found 24/9£628

Mon 26/1022:20 -

2 stops16h 50m

Mon 2/1107:20 -

2 stops16h 45m

Deal found 26/9£641

Fri 16/1020:50 -

3 stops19h 25m

Sat 24/1022:25 -

3 stops27h 35m

Deal found 26/9£650

Find flight deals from Boston to Belfast Intl

Round-trip from	£561
One-way from	£265
Popular in	November
Cheapest in	March
Average price	£515

15/11-1/12
4 total stops
35h 50m total
Boston to Belfast

Search Deals

11/10-31/12
2 total stops
31h 40m total
Boston to Belfast

Search Deals

Highest demand for flights based on searches. 28% potential increase in price (£256 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 14% potential price decrease (£80 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 11/10

23:35-12:15

2 stops31h 40m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£265

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 11/10

19:40-17:25

1 stop16h 45m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£432

Fastest return journey

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 7/10

17:10-13:45

1 stop15h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£517

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 15/11

19:50-20:30

2 stops19h 40m

Belfast Intl

Tue 1/12

06:40-17:50

2 stops16h 10m

£561

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sat 14/11

19:50-18:15

2 stops17h 25m

Belfast Intl

Sat 21/11

23:00-19:55

3 stops25h 55m

£564

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Mon 26/10

20:50-15:10

2 stops14h 20m

Belfast Intl

Mon 2/11

06:00-20:00

3 stops19h 00m

£680

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 21/10

20:50-15:20

2 stops13h 30m

Belfast Intl

Sun 25/10

08:50-21:00

2 stops16h 10m

£695

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Thu 17/12

21:25-22:25

3 stops20h 00m

Belfast Intl

Mon 21/12

06:20-19:05

2 stops17h 45m

£887

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Wed 14/10

20:50-20:15

3 stops18h 25m

Belfast Intl

Sat 17/10

08:30-21:26

3 stops17h 56m

£995

Flights are sorted by cheapest return flights first.

Deals found on 27/9

Sorted by cheapest first

Best time to book a flight from Boston to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Boston with our price prediction graph.

BOS-BFS

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 Boston to Belfast Intl Airport

How much does it cost for a return flight from Boston to Belfast Intl Airport?

Airfare is typical for this route at the moment.

Boston to Belfast Intl Airport flights typically cost between £481 and £771 in November.
The cheapest return price found within the last 5 days was £561 on Multiple Airlines (15 Nov–1 Dec).

Related info for your journey

What airport do you fly from for flights from Boston to Belfast Intl?
If you book a flight to Belfast Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 0 flights from Logan Intl to Belfast Intl per day from 0 different airlines.
Can I find deals for flights from Boston to Belfast Intl that include hotel bookings?
Yes. In addition to deals on Boston to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Boston to Belfast Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Belfast Intl.
Can I find deals for business class flights from Boston to Belfast Intl?
Yes. Cheapflights offers flight deals from Boston to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Armagh

Newry

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Alternative routes

Belfast Intl flight routes

Complete your trip

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Alternative routes for Boston to Belfast Intl

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Hartford to Belfast City flights

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

When you search for this flight from Boston to Belfast Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 Boston to Belfast Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Boston to Belfast Intl 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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Cheap flights from Boston to Belfast Intl Airport from £265

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to Belfast Intl

Cheapest flights from Boston to Belfast IntlExplore the most affordable flight options available from Boston to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Explore the most affordable flight options available from Boston to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Boston to Belfast IntlDiscover carefully curated flight deals from Boston to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Discover carefully curated flight deals from Boston to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Boston to Belfast IntlDiscover last-minute flight deals from Boston to Belfast Intl. Data last updated 29 September 2026 and is based on user searches.

Discover last-minute flight deals from Boston to Belfast Intl. Data last updated 29 September 2026 and is based on user searches.

One-way flights from Boston to Belfast IntlSearch for one-way flight options from Boston to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.

Search for one-way flight options from Boston to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.

Find flight deals from Boston to Belfast Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Boston to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Boston with our price prediction graph.

Cheapflights Insights

How much does it cost for a return flight from Boston to Belfast Intl Airport?

Airfare is typical for this route at the moment.

Boston to Belfast Intl Airport flights typically cost between £481 and £771 in November.The cheapest return price found within the last 5 days was £561 on Multiple Airlines (15 Nov–1 Dec).

Related info for your journey

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

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

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

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

Travelling to a place near Belfast Intl Airport?

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 Boston to Belfast Intl

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

Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 September 2026.

Complete your trip

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

Direct flights to Northern Ireland

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

Search flights from Boston to Belfast Intl by cabin class

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

Boston and Belfast Intl flights

Browse other Boston and Belfast Intl flight options. Last updated on 29 September 2026.

Other flights from Boston

Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on 29 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

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Travel Smart

Cheapest flights from Boston to Belfast Intl
Explore the most affordable flight options available from Boston to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 September 2026.

Best flights from Boston to Belfast Intl
Discover carefully curated flight deals from Boston to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 September 2026.

Last-minute flights from Boston to Belfast Intl
Discover last-minute flight deals from Boston to Belfast Intl. Data last updated 29 September 2026 and is based on user searches.

One-way flights from Boston to Belfast Intl
Search for one-way flight options from Boston to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 29 September 2026.

Boston to Belfast Intl Airport flights typically cost between £481 and £771 in November.
The cheapest return price found within the last 5 days was £561 on Multiple Airlines (15 Nov–1 Dec).