When did momondo last update prices for flights from Belfast Intl Airport to United States?

Prices for flights from Belfast Intl Airport to United States were last updated today.

How old do you have to be to fly from Belfast Intl Airport to United States?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$422 Cheap Flights from Belfast Intl Airport to United States in 2026/27

Find the cheapest flights from Belfast Intl Airport to the United States

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:20 pm - 5:50 pmBFS Belfast Intl-BOS Boston Logan Intl

26h 30m3 stops Krakow J. Paul II Balice Kastrup Copenhagen Reykjavik Keflavik Intl

7:50 pm - 7:55 pmBOS Boston Logan Intl-BFS Belfast Intl

19h 05m3 stops Reykjavik Keflavik Intl Paris Charles de Gaulle London Luton

$835Multiple Airlines

Thu, Dec 3 - Mon, Dec 7

6:30 am - 8:15 pmBFS Belfast Intl-BOS Boston Logan Intl

18h 45m2 stops London Stansted Lisbon Humberto Delgado

10:11 pm - 4:15 pmBOS Boston Logan Intl-BFS Belfast Intl

13h 04m1 stop London Heathrow

$877Multiple Airlines

Thu, Dec 3 - Mon, Dec 7

6:30 am - 8:15 pmBFS Belfast Intl-BOS Boston Logan Intl

18h 45m2 stops London Gatwick Lisbon Humberto Delgado

6:00 pm - 9:15 pmBOS Boston Logan Intl-BFS Belfast Intl

22h 15m2 stops Lisbon Humberto Delgado London Gatwick

$878Multiple Airlines

Thu, Jan 28 - Mon, Feb 1

7:05 am - 7:05 pmBFS Belfast Intl-BOS Boston Logan Intl

17h 00m2 stops Birmingham Dublin

9:20 pm - 10:10 pmBOS Boston Logan Intl-BFS Belfast Intl

19h 50m2 stops Dublin Birmingham

$888Multiple Airlines

Tue, Dec 22 - Tue, Dec 29

6:30 am - 8:15 pmBFS Belfast Intl-BOS Boston Logan Intl

18h 45m2 stops London Gatwick Lisbon Humberto Delgado

7:50 pm - 8:10 pmBOS Boston Logan Intl-BFS Belfast Intl

19h 20m3 stops Reykjavik Keflavik Intl Dublin London Stansted

$928Multiple Airlines

Thu, Jan 28 - Mon, Feb 1

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 12/3

8:20 pm-5:50 pm

3 stops26h 30m

Boston Logan Intl

Mon 12/7

7:50 pm-7:55 pm

3 stops19h 05m

$835

Quickest round-trip

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 12/3

6:30 am-8:15 pm

2 stops18h 45m

Boston Logan Intl

Mon 12/7

10:11 pm-4:15 pm

1 stop13h 04m

$877

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 1/28

6:30 am-8:15 pm

2 stops18h 45m

Boston Logan Intl

Mon 2/1

6:00 pm-9:15 pm

2 stops22h 15m

$878

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Tue 12/22

7:05 am-7:05 pm

2 stops17h 00m

Boston Logan Intl

Tue 12/29

9:20 pm-10:10 pm

2 stops19h 50m

$888

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Thu 1/28

6:30 am-8:15 pm

2 stops18h 45m

Boston Logan Intl

Mon 2/1

7:50 pm-8:10 pm

3 stops19h 20m

$928

Cheapest one-way

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Mon 11/23

5:30 pm-2:40 pm

3 stops50h 10m

$422

Quickest one-way

BelfastBoston

BFS Belfast Intl - BOS Boston Logan Intl

BFSBOS

Belfast Intl

Mon 11/23

2:00 pm-8:30 pm

2 stops35h 30m

$511

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Belfast Intl Airport to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United States?

In general, February is the cheapest month to fly from Belfast Intl Airport to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $600. If you aren’t able to travel during the month of February, then book flights to United States from Belfast Intl Airport during January instead. Flights to United States in January, while not as cheap as those in February, still average around $678.

Cheap Belfast Intl Airport to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to United States

Best Price Found	$422
Fastest flight time	11h 45m
Direct flights	None

The best one-way flight to United States from Belfast Intl Airport in the past 72 hours is $422. The best round-trip flight deal from Belfast Intl Airport to United States found on momondo in the last 72 hours is $835.

The fastest flight from Belfast Intl Airport to United States takes 11h 45m

There are no direct flights from Belfast Intl Airport to United States. There are no popular flight routes from Belfast Intl Airport to United States.

Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to the United States

When did momondo last update prices for flights from Belfast Intl Airport to United States?
Prices for flights from Belfast Intl Airport to United States were last updated today.
How old do you have to be to fly from Belfast Intl Airport to United States?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to United States?

Finding the right flight to United States from Belfast is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United States quick and easy, saving you time and money.

Can I find flights from Belfast to United States with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to United States from Belfast with this policy.

How can momondo help me find flights from Belfast to United States?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to United States.

I’m not ready to book a flight from Belfast to United States right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Belfast to United States flights. All you need is a valid email address and we will do the rest; it is that quick and easy.