Cheap flights from Boston (BOS) to Belfast from $536

This is the cheapest one-way flight price, found on 9/25. Prices may vary by date and flight preferences.
BOS — BHD
Oct 1 — Oct 81

How to find the cheapest flight from Boston (BOS) to Belfast

All the information you need to plan the best BOS to BF1 flight in 2023: compare Boston to Belfast flight prices with the expected peak season, weather and rainfall in Belfast.

Popular in

July

Cheapest in

January

Round-trip from

$588

One-way from

$541
High demand for flights, 20% potential price rise
Best time to find cheap flights, 24% potential price drop
From Boston Logan Intl to Belfast
One-way flight from Boston Logan Intl to Belfast

BOS - BFS

Price

$588 - $1,428

BFS

Temperature

41 - 60.8 °F

BFS

Rainfall

2 - 3.5 inches

How far in advance should I book a flight from Boston to Belfast?

Travelers have found it’s best to book a flight 52 days in advance to save up to 52% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Boston to Belfast 1-2 weeks in advance for as low as $902, or $1,118 for flights within the next 24 hours.

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

The best pricing can be found in the month of January. Prices to Belfast from Boston average $782. You can even find prices in January for less than $782, as users have found deals to Belfast from as low as $576. 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 24%.

When is the cheapest time to fly from Boston to Belfast (BOS - BFS)?

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

Cheap Delta flights from Boston to Belfast

Consider these cheap Delta flights we've found departing from Boston to Belfast. It's recommended that users confirm their flight details before booking.

Cheap American Airlines flights from Boston to Belfast

Have a look at some of the cheapest available American Airlines flights departing from Boston and landing in Belfast. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Boston to Belfast flights in September & October 2023

The best prices found for BOS to Belfast flights for September, October
These are some of the most attractive deals on flights from Boston to Belfast in 2023. Check back in a little while for more flight options.

Boston to Belfast 2023 flight deals

Cheap flights to Belfast from Boston found for this year
These are some of the most attractive deals on flights from Boston to Belfast in 2023. Check back in a little while for more flight options.

Boston to Belfast flights leaving soon

Late deals on return flights to Belfast from Boston, departing today and this week
Consider one of these great deals we found on last-minute flights from Boston to Belfast. Tip: verify your flight details before completing your reservation.

One-way flights to Belfast from Boston

The cheapest one-way flights from Boston to Belfast
Some of the best available deals we've found on one-way flights from Boston to Belfast. Those needing a return flight from Boston to Belfast can use the search form above.

Find flights from Boston to Belfast within your budget

Use the slider to find flights from Boston to Belfast that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$617 - $842

Route

Depart

Return

Price

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 11/15

1 stop11h 15m

Belfast City

Wed 11/22

1 stop13h 00m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 11/10

1 stop10h 25m

Belfast City

Tue 11/14

1 stop15h 20m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 12/2

1 stop16h 35m

Belfast City

Sat 12/9

1 stop25h 15m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 11/10

2 stops17h 25m

Belfast City

Tue 11/14

1 stop25h 05m

Boston Logan IntlBelfast Intl

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 11/15

1 stop19h 45m

Belfast Intl

Sat 12/2

2 stops26h 50m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 11/15

1 stop14h 40m

Belfast City

Wed 11/22

2 stops30h 34m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 10/12

2 stops14h 36m

Belfast City

Sat 10/21

1 stop23h 25m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 10/16

1 stop16h 15m

Belfast City

Sat 10/21

1 stop23h 25m

Boston Logan IntlBelfast City

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 10/16

2 stops13h 25m

Belfast City

Sat 10/21

2 stops25h 50m

Flights are sorted by cheapest first

Deals found on 9/24

Reviews of airlines servicing Belfast

See what other customers who have flown with Delta, American Airlines and British Airways from Boston to Belfast have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

Delta
7.9
Good
3,021 reviews
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

Virgin Atlantic
6.9
Okay
140 reviews
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

Aer Lingus
6.6
Okay
326 reviews
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

British Airways
6.5
Okay
1,138 reviews
Delta
7.9
Good
3,021 reviews

Crew

8.5

Boarding

8.0

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 10

I found the staff at the Richmond airport to be very rude (mainly TSA), but the Delta Crew was fantastic. I boarded just in time, had room for my luggage, a comfortable seat, friendly travel companions, tasty snacks and a very smooth flight with great entertainment and free wifi while onboard!

Related info for your journey

Useful info, stats and facts about Boston to Belfast flights.

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 flights from Boston to Belfast for under $700 on Cheapflights?

Yes, there are multiple flights from Boston to Belfast for under $700. The cheapest flight booked recently is on British Airways for just $617, but on average you can expect to pay $795.

Are there last-minute flights available from Boston to Belfast for under $700?

There are currently 17+ open flights from Boston to Belfast within the next 7 days for less than $700.

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

According to our current data, British Airways ($617), Delta ($671), and Virgin Atlantic ($681) offers the cheapest pricing from Boston to Belfast. You may be able to fly from Boston to Belfast for 21% less than the average price by searching for these airlines.

What does BOS to BFS mean?

BOS stands for Boston Logan Intl Airport, while BFS stands for Belfast Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Belfast City Airport (BHD), Glasgow Prestwick Airport (PIK), Londonderry Eglinton Airport (LDY), Isle of Islay Glenegedale Airport (ILY), Campbeltown Machrihanish Airport (CAL) are other airports near this flight route and their unique identifiers/IATA codes.

Other flights from Boston

Top 2 airlines flying from Boston to Belfast

The chart below displays the airlines Cheapflights users traveling from Boston to Belfast choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$518Average$794FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$591Average$860FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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?

Need flexible booking options for your flight to Belfast from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Boston to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and make a flight search when you’re ready to set up your price alert.

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