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

According to our current data, British Airways ($633), Finnair ($639), and American Airlines ($649) offers the cheapest pricing from Boston to Belfast. You may be able to fly from Boston to Belfast for 15% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Boston to Belfast one-way?

To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $608. Finnair flights start at $619 while deals on Iberia start at $627 one-way.

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

Travelers seeking maximum savings on their Boston to Belfast flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon 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 Boston to Belfast?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 51% on your flight compared to booking on days when demand is much higher.

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

The best pricing can be found in the month of November. Prices to Belfast from Boston average $748. You can even find prices in November for less than $748, as users have found deals to Belfast from as low as $584. The month of July appears to be one of the more expensive times to travel to Belfast from Boston. Flying in the targeted month can save you up to 29%.

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

If you book a flight to Belfast 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 per day from 2 different airlines.

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 vacation 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.

$353+ Flights from Boston to Belfast

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Cheap flight deals from Boston to Belfast

Round-trip from	$463 (Mytrip)
One-way from	$402 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$852

From Boston Logan Intl to Belfast

Search Deals

One-way flight from Boston Logan Intl to Belfast

Search Deals

High demand for flights, 19% potential price rise

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Best time to find cheap flights, 3% potential price drop

Search Deals

Average for round-trip flights in December 2024

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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 December 22, 2024.

Sun 12/296:20 pmBOS - BHD

2 stops21h 30mMultiple Airlines

Sun 1/56:50 pmBHD - BOS

2 stops24h 00mMultiple Airlines

Deal found 12/21

$1,796

Mon 12/239:20 pmBOS - BHD

2 stops13h 55mBritish Airways

Mon 12/307:30 pmBHD - BOS

2 stops28h 23mBritish Airways

Deal found 12/21

$1,936

Mon 12/2310:49 amBOS - BHD

2 stops18h 41mIberia

Mon 12/302:40 pmBHD - BOS

1 stop28h 20mIberia

Deal found 12/21

$1,975

Best flights from Boston to Belfast
Discover carefully curated flight deals from Boston to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

Sat 1/186:20 pmBOS - BFS

2 stops22h 00mMultiple Airlines

Sat 1/256:00 amBFS - BOS

2 stops16h 00mMultiple Airlines

Deal found 12/21

$463

Tue 2/46:25 pmBOS - BHD

1 stop11h 05mBritish Airways

Tue 2/119:55 amBHD - BOS

1 stop14h 40mBritish Airways

Deal found 12/21

$633

Tue 1/1410:00 pmBOS - BHD

1 stop13h 45mFinnair

Tue 1/216:35 amBHD - BOS

1 stop12h 25mFinnair

Deal found 12/21

$639

Tue 1/148:20 pmBOS - BHD

1 stop13h 35mAmerican Airlines

Tue 1/216:35 amBHD - BOS

1 stop11h 50mAmerican Airlines

Deal found 12/21

$649

Tue 1/147:09 pmBOS - BHD

1 stop16h 41mKLM

Tue 1/216:30 amBHD - BOS

1 stop12h 05mKLM

Deal found 12/20

$684

Tue 1/143:50 pmBOS - BHD

2 stops20h 00mDelta

Tue 1/216:30 amBHD - BOS

2 stops17h 50mDelta

Deal found 12/21

$700

Thu 1/25:50 pmBOS - BHD

2 stops20h 00mAer Lingus

Tue 1/146:55 amBHD - BOS

2 stops17h 04mAer Lingus

Deal found 12/20

$1,036

Tue 2/45:45 pmBOS - BHD

3 stops22h 05mMultiple Airlines

Tue 2/112:25 pmBHD - BOS

2 stops30h 25mMultiple Airlines

Deal found 12/21

$759

Last-minute flights from Boston to Belfast
Discover last-minute flight deals from Boston to Belfast. Data last updated December 22, 2024 and is based on user searches.

Mon 12/2310:49 amBOS - BHD

2 stops18h 41mIberia

Mon 12/302:40 pmBHD - BOS

1 stop28h 20mIberia

Deal found 12/21

$1,975

Sun 12/296:20 pmBOS - BHD

2 stops21h 30mMultiple Airlines

Sun 1/56:50 pmBHD - BOS

2 stops24h 00mMultiple Airlines

Deal found 12/21

$1,796

Thu 1/25:50 pmBOS - BHD

2 stops20h 00mAer Lingus

Tue 1/146:55 amBHD - BOS

2 stops17h 04mAer Lingus

Deal found 12/20

$1,036

Tue 1/1410:00 pmBOS - BHD

1 stop13h 45mFinnair

Tue 1/216:35 amBHD - BOS

1 stop12h 25mFinnair

Deal found 12/21

$639

Tue 1/148:20 pmBOS - BHD

1 stop13h 35mAmerican Airlines

Tue 1/216:35 amBHD - BOS

1 stop11h 50mAmerican Airlines

Deal found 12/21

$649

Tue 1/147:09 pmBOS - BHD

1 stop16h 41mKLM

Tue 1/216:30 amBHD - BOS

1 stop12h 05mKLM

Deal found 12/20

$684

Tue 1/143:50 pmBOS - BHD

2 stops20h 00mDelta

Tue 1/216:30 amBHD - BOS

2 stops17h 50mDelta

Deal found 12/21

$700

Tue 1/1410:50 amBOS - BHD

3 stops29h 10mMultiple Airlines

Tue 1/216:30 amBHD - BOS

3 stops32h 38mMultiple Airlines

Deal found 12/21

$794

Sat 1/186:20 pmBOS - BFS

2 stops22h 00mMultiple Airlines

Sat 1/256:00 amBFS - BOS

2 stops16h 00mMultiple Airlines

Deal found 12/21

$463

Sat 1/1810:00 pmBOS - BHD

1 stop11h 15mBritish Airways

Sat 1/2511:15 amBHD - BOS

1 stop15h 40mBritish Airways

Deal found 12/21

$640

One-way flights from Boston to Belfast
Search for one-way flight options from Boston to Belfast. Find affordable one-way fares based on user searches. Data last updated December 22, 2024.

Sun 6/87:15 pmBOS - BHD

2 stops17h 25mMultiple Airlines

Deal found 12/21

$402

Mon 6/910:00 pmBOS - BHD

1 stop12h 40mBritish Airways

Deal found 12/21

$608

Sat 6/77:40 pmBOS - BHD

1 stop9h 30mFinnair

Deal found 12/21

$619

Fri 6/69:55 pmBOS - BHD

1 stop17h 50mIberia

Deal found 12/21

$627

Find flights from Boston to Belfast within your budget

Fly from

Fly to

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 1/18

6:20 pm-9:20 pm

2 stops22h 00m

Belfast Intl

Sat 1/25

6:00 am-5:00 pm

2 stops16h 00m

$463

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 2/4

6:25 pm-10:30 am

1 stop11h 05m

Belfast City

Tue 2/11

9:55 am-7:35 pm

1 stop14h 40m

$633

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 1/14

10:00 pm-4:45 pm

1 stop13h 45m

Belfast City

Tue 1/21

6:35 am-2:00 pm

1 stop12h 25m

$639

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 1/14

8:20 pm-2:55 pm

1 stop13h 35m

Belfast City

Tue 1/21

6:35 am-1:25 pm

1 stop11h 50m

$649

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 1/14

7:09 pm-4:50 pm

1 stop16h 41m

Belfast City

Tue 1/21

6:30 am-1:35 pm

1 stop12h 05m

$684

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 1/14

3:50 pm-4:50 pm

2 stops20h 00m

Belfast City

Tue 1/21

6:30 am-7:20 pm

2 stops17h 50m

$700

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 2/4

5:45 pm-8:50 pm

3 stops22h 05m

Belfast City

Tue 2/11

2:25 pm-3:50 pm

2 stops30h 25m

$759

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 1/2

5:50 pm-6:50 pm

2 stops20h 00m

Belfast City

Tue 1/14

6:55 am-6:59 pm

2 stops17h 04m

$1,036

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 6/8

7:15 pm-10:30 pm

2 stops22h 15m

$353

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 6/8

7:15 pm-5:40 pm

2 stops17h 25m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 13 results

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 round-trip 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, February is the cheapest month in which you can book a flight from Boston to Belfast (average of $657). Flying from Boston to Belfast in June is currently the most expensive (average of $1,189). 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 time of day to fly from BOS to BFS?

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Boston to Belfast by exploring options for tickets in the morning.

Rainfall in Belfast by month

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

Temperature in Belfast 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Belfast

Delta

8.0

Very good

8,597 reviews

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

8,597 reviews

Delta

8.0

Very good

8,597 reviews

Reviews

1 / 10

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

KLM

7.8

Good

1,342 reviews

Delta

8.0

Very good

8,597 reviews

Reviews

1 / 10

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

Finnair

7.7

Good

1,283 reviews

Delta

8.0

Very good

8,597 reviews

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

8,597 reviews

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

1,075 reviews

Delta

8.0

Very good

8,597 reviews

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

What airport do you fly from for flights from Boston to Belfast?
If you book a flight to Belfast 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 per day from 2 different airlines.
What are the cheapest airlines flying from Boston to Belfast round-trip?
According to our current data, British Airways ($633), Finnair ($639), and American Airlines ($649) offers the cheapest pricing from Boston to Belfast. You may be able to fly from Boston to Belfast for 15% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Boston to Belfast one-way?
To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $608. Finnair flights start at $619 while deals on Iberia start at $627 one-way.
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 vacation 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, February is the cheapest month in which you can book a flight from Boston to Belfast (average of $657). Flying from Boston to Belfast in June is currently the most expensive (average of $1,189). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Boston to Belfast

Boston to Belfast Intl flights

Boston to Belfast City flights

Hartford to Belfast Intl flights

Hartford to Belfast City flights

Worcester to Belfast City flights

Top 2 airlines flying from Boston to Belfast

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$584	Average$652	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$588	Average$685	FlexibilityNo cancel fee	On-time70%

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$353+ Cheap flights from Boston (BOS) to Belfast

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Belfast with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Belfast

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Boston to Belfast

Cheapest flights from Boston to BelfastExplore 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 December 22, 2024.

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 December 22, 2024.

Find flights from Boston to Belfast within your budget

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.

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?

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

Find hourly flight availability from Boston to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

Rainfall in Belfast by month

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

Temperature in Belfast by month

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

Reviews of airlines servicing Belfast

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?

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

What are the cheapest airlines to fly from Boston to Belfast one-way?

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

How can I find direct flights from Boston to Belfast?

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

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

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

Top 2 airlines flying from Boston to Belfast

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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 December 22, 2024.