Find Cheap Flights from Boston to Belfast – Compare and Save

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Everything you should know

Direct flights
Not available
There are currently no direct flights between Boston and Belfast. You'll need to take a connecting flight to reach the destination.
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Insights
When to travel
September
Cheapest • 52% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
London Heathrow (LHR)
Cheapest • Avg £729 (return)
Amsterdam Schiphol (AMS)
Shortest trip • 15h 35m (one-way)
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Insights
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Flight Deals

Cheap Flights from Boston to Belfast (BOS-BHD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to Belfast

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BOS  Boston Logan Airport-BF1 Bere Ferrers
2979 mimulti-stop
Multiple Airlines Logo
BF1  Bere Ferrers-BOS Boston Logan Airport
2979 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand, and travel trends for Boston to Belfast flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Boston to Belfast?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Boston to Belfast. It's 47% cheaper than the average day, while Tuesday is the most expensive, with prices 38% higher.

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Key details for Boston to Belfast flights

Low season

January
Beat the crowds with an average 57% drop in traveller numbers.
The most popular month to fly with an average 28% increase in traveller numbers.

When to book flights from Boston to Belfast

Are your dates flexible? Find out the best times to travel from Boston to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Boston to Belfast flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Boston to Belfast?

    A direct flight from Boston to Belfast takes 00m, covering 2,979 miles.

  • Do I need a passport to fly from Boston to Belfast?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Belfast flight?

    Return flights from Boston to Belfast range from £486 to £1,059, with an average of £875 over the past 12 months. Anything below £486 counts as a good deal.

  • What car hire options are available in Belfast?

    Since Belfast is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
    Near Belfast City Airport (BHD) – daily rates from around £10:

    • Budget
    • Sixt
    • Enterprise Rent-A-Car
    • Avis
    • Hertz

    Near Belfast Intl Airport (BFS) – daily rates from around £8:

    • Budget
    • DRIVALIA
    • Sixt
    • Alamo
    • Hertz

  • Which airports can I use when flying from Boston to Belfast?

    Flights from Boston to Belfast usually depart from Boston Logan Intl (BOS) and may arrive at several airports in Belfast area, including Belfast Intl (BFS) and Belfast City (BHD).

  • Which airports do connecting flights from Boston to Belfast pass through?

    Connecting flights from Boston to Belfast most commonly pass through:

    • London Heathrow (LHR) – 85% of one-stop connections
    • Amsterdam Schiphol (AMS) – 15% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Belfast?

    Yes. Flexible dates can save you up to 62% on flights from Boston to Belfast. Thursday is the cheapest departure day at £466 return on average, while Tuesday is the most expensive at £1,214, a difference of £748.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Boston to Belfast?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time of 11h 37m, compared to 15h 35m via Amsterdam Schiphol (AMS).

  • What is the time difference between Boston and Belfast?

    Belfast is 4 hours ahead of Boston (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Belfast?

    Some of the most popular sights in Belfast are Waterfront Hall, SSE Arena, and Grand Opera House. These are among the most viewed places in Belfast on KAYAK.

Your guide to booking Boston to Belfast flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Tuesday. On this route, Thursday flights average £466, about £748 less than Tuesday fares (62% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Belfast trip for September. Fares historically average £415 return in that month – typically £1,356 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Belfast City Airport.

    • Titanic Hotel Belfast
    • Park Avenue
    • Premier Inn Belfast Titanic Quarter

More options for your flight from Boston to Belfast

Complete your trip to Belfast with a hotel stay or car hire

Car hire in Belfast
Hotels in Belfast
Holidays in Belfast