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Cheap flights from the United States to Belfast from $260

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Belfast departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Belfast

Recent round-trip flight deals from the United States to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 pm - 9:00 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
19h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
8:15 pm - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
31h 10m3 stops London Stansted Hamburg Dublin
$577Multiple Airlines
Sun, Sep 27 - Tue, Oct 13
Multiple Airlines Logo
8:30 pm - 8:40 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
19h 10m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse
Multiple Airlines Logo
4:20 pm - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
35h 05m3 stops London Stansted Berlin Brandenburg Dublin
$590Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
8:30 pm - 8:40 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
19h 10m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse
Multiple Airlines Logo
4:20 pm - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
35h 05m3 stops London Stansted Berlin Brandenburg Dublin
$593Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
8:25 pm - 8:40 pmEWR  Newark-BFS Belfast Intl
19h 15m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse
Multiple Airlines Logo
8:10 pm - 7:15 pmBFS  Belfast Intl-EWR Newark
28h 05m3 stops London Luton Gdansk Rebiechowo Reykjavik Keflavik Intl
$618Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
8:25 pm - 8:40 pmEWR  Newark-BFS Belfast Intl
19h 15m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse
Multiple Airlines Logo
8:10 pm - 7:15 pmBFS  Belfast Intl-EWR Newark
28h 05m3 stops London Luton Gdansk Rebiechowo Reykjavik Keflavik Intl
$628Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
11:10 pm - 7:00 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
14h 50m2 stops Reykjavik Keflavik Intl Edinburgh Turnhouse
Multiple Airlines Logo
12:20 pm - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
39h 05m3 stops London Stansted Berlin Brandenburg Dublin
$628Multiple Airlines
Thu, Oct 15 - Sun, Oct 18
Multiple Airlines Logo
11:10 pm - 7:40 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
15h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
8:50 am - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
42h 35m3 stops London Stansted Berlin Brandenburg Dublin
$640Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
Multiple Airlines Logo
11:10 pm - 11:20 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
19h 10m3 stops Reykjavik Keflavik Intl Edinburgh Turnhouse London Stansted
Multiple Airlines Logo
4:20 pm - 10:25 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
35h 05m3 stops London Stansted Berlin Brandenburg Dublin
$643Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
8:30 pm - 7:45 amMCO  Orlando-BFS Belfast Intl
30h 15m1 stop London Gatwick
Multiple Airlines Logo
8:55 pm - 6:25 pmBFS  Belfast Intl-MCO Orlando
26h 30m1 stop London Gatwick
$650Multiple Airlines
Sat, Sep 26 - Tue, Sep 29
Multiple Airlines Logo
6:20 pm - 7:20 pmJFK  New York John F Kennedy Intl-BFS Belfast Intl
20h 00m1 stop London Gatwick
Multiple Airlines Logo
8:55 pm - 3:55 pmBFS  Belfast Intl-JFK New York John F Kennedy Intl
24h 00m1 stop London Gatwick
$651Multiple Airlines
Thu, Oct 1 - Mon, Oct 5

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Customize your flight search to find flights from United States to Belfast Intl Airport 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, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from the United States to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sun 9/27

8:30 pm-9:00 pm

2 stops19h 30m

Belfast Intl

Tue 10/13

8:15 pm-10:25 pm

3 stops31h 10m

$577

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Mon 9/14

8:30 pm-8:40 pm

2 stops19h 10m

Belfast Intl

Wed 9/30

4:20 pm-10:25 pm

3 stops35h 05m

$590

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Mon 9/14

8:30 pm-8:40 pm

2 stops19h 10m

Belfast Intl

Wed 9/30

4:20 pm-10:25 pm

3 stops35h 05m

$593

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 9/14

8:25 pm-8:40 pm

2 stops19h 15m

Belfast Intl

Wed 9/30

8:10 pm-7:15 pm

3 stops28h 05m

$618

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 9/14

8:25 pm-8:40 pm

2 stops19h 15m

Belfast Intl

Wed 9/30

8:10 pm-7:15 pm

3 stops28h 05m

$628

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 10/15

11:10 pm-7:00 pm

2 stops14h 50m

Belfast Intl

Sun 10/18

12:20 pm-10:25 pm

3 stops39h 05m

$628

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Tue 10/6

11:10 pm-7:40 pm

2 stops15h 30m

Belfast Intl

Tue 10/13

8:50 am-10:25 pm

3 stops42h 35m

$640

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Mon 9/14

11:10 pm-11:20 pm

3 stops19h 10m

Belfast Intl

Wed 9/30

4:20 pm-10:25 pm

3 stops35h 05m

$643

OrlandoBelfast

MCO Orlando - BFS Belfast Intl

MCOBFS

Orlando

Sat 9/26

8:30 pm-7:45 am

1 stop30h 15m

Belfast Intl

Tue 9/29

8:55 pm-6:25 pm

1 stop26h 30m

$650
Quickest round-trip

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 10/1

6:20 pm-7:20 pm

1 stop20h 00m

Belfast Intl

Mon 10/5

8:55 pm-3:55 pm

1 stop24h 00m

$651

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Belfast from

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

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 Belfast Intl Airport?

The month of January is, on average, the cheapest month to fly to Belfast Intl Airport from United States, with most prices found around $603. If you’re not able to fly to Belfast Intl Airport in January, then July is your next best option. Flight prices from United States to Belfast Intl Airport during July average around $622.

Cheap United States to Belfast Intl Airport flight deals and tips

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

Fastest flight time

10h 00m

Direct flights

None
The fastest flight from United States to Belfast Intl Airport takes 10h 00m
There are no direct flights from United States to Belfast Intl Airport. There are no popular flight routes from United States to Belfast Intl Airport.
Search flight deals

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

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

    Prices for flights from United States to Belfast Intl Airport refresh daily.

  • How many operators does momondo search for flights from United States to Belfast Intl Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The required travel and health documents for your Belfast Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from United States to Belfast Intl Airport

Compare and see reviews for airlines that fly from United States to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $538Free CancellationRating
6.7
8,159 reviews
Search British Airways flights
DeltaPriceFrom $973Free CancellationRating
7.8
8,505 reviews
Search Delta flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Ballymena
Newry
Dungannon

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to Belfast. momondo saves you time and could save you money on your trip.

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

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

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

Once all potential United States to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Belfast from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belfast Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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