HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$318+ Cheap flights from Belfast to Boston (BOS)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — BOS
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Belfast to Boston with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Belfast to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated marzo 28, 2025.

Round-trip from

$539
(PLAY)

One-way from

$318
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$678
From Belfast to Boston Logan Intl
Search Deals
One-way flight from Belfast to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 marzo 28, 2025.

This PLAY deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/117:00 amBFS - BOS
2 stops15h 50mMultiple Airlines
dom. 5/187:15 pmBOS - BFS
2 stops22h 10mMultiple Airlines
Deal found 3/27$539
This World Air Fares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1812:40 pmBHD - BOS
1 stop12h 30mFinnair
jue. 10/95:04 pmBOS - BHD
2 stops13h 06mFinnair
Deal found 3/27$601
This World Air Fares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/186:35 amBHD - BOS
2 stops14h 42mMultiple Airlines
jue. 10/95:04 pmBOS - BHD
2 stops13h 06mMultiple Airlines
Deal found 3/27$634

Cheapflights Fare Finder

Customize your flight search to find flights from Belfast to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 28, 2025.
Use the filters below to find and compare flights from Belfast to Boston that are best for you.

Fly from

Belfast

Fly to

Boston

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

dom. 5/11

7:00 am-5:50 pm

2 stops15h 50m

Boston Logan Intl

dom. 5/18

7:15 pm-10:25 pm

2 stops22h 10m

$539

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

jue. 9/18

12:40 pm-8:10 pm

1 stop12h 30m

Boston Logan Intl

jue. 10/9

5:04 pm-11:10 am

2 stops13h 06m

$601

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

jue. 9/18

6:35 am-4:17 pm

2 stops14h 42m

Boston Logan Intl

jue. 10/9

5:04 pm-11:10 am

2 stops13h 06m

$634

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

sáb. 5/10

6:00 am-11:47 pm

2 stops22h 47m

$318

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

sáb. 5/10

7:00 am-11:47 pm

2 stops21h 47m

$333

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

sáb. 5/10

4:15 pm-11:10 am

1 stop23h 55m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

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 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Boston

Rainfall in Boston by month

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

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 marzo 28, 2025.
Finnair
7.6
Good
1,267 reviews

Crew

8.1

Food

6.7

Entertainment

6.9

Overall

7.6

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,267 reviews
Finnair
7.6
Good
1,267 reviews

Crew

8.1

Food

6.7

Entertainment

6.9

Overall

7.6

Comfort

7.4

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

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?

    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 0 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    Finnair, at $601, was found to be the cheapest airline from Belfast to Boston.. You may be able to fly from Belfast to Boston for 28% less than the average price by searching for this airline.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Belfast to Boston (average of $218). Flying from Belfast to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Warwick
Marlborough
Waltham
Cambridge
Framingham
Chestnut Hill
Seekonk
Randolph
Brockton
Lowell
West Yarmouth
Woburn
Somerville
Saco
Burlington
Smithfield
Salem
Chelsea
Seabrook
Brookline

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.
Belfast Intl to Boston flights
Belfast City to Boston flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
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.