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Cheap flights from the United States to Belfast from $301

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 9/19. 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
0 bags

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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
1:10 am - 11:20 pm
JFK
-
BFS
17h 10m
1 stop
Multiple Airlines Logo
8:15 pm - 11:00 pm
BFS
-
JFK
31h 45m
1 stop
$689Multiple Airlines
Mon, Jun 1 - Tue, Jun 16
Multiple Airlines Logo
1:10 am - 11:05 pm
JFK
-
BFS
16h 55m
2 stops
Multiple Airlines Logo
8:15 pm - 11:00 pm
BFS
-
JFK
31h 45m
1 stop
$717Multiple Airlines
Mon, Jun 1 - Tue, Jun 16
Multiple Airlines Logo
6:20 pm - 12:20 pm
JFK
-
BFS
13h 00m
1 stop
Multiple Airlines Logo
8:15 pm - 3:55 pm
BFS
-
JFK
24h 40m
1 stop
$718Multiple Airlines
Sun, Sep 20 - Wed, Sep 30
Multiple Airlines Logo
6:20 pm - 12:20 pm
JFK
-
BFS
13h 00m
1 stop
Multiple Airlines Logo
8:30 am - 10:30 pm
BFS
-
JFK
43h 00m
2 stops
$732Multiple Airlines
Sun, Sep 20 - Wed, Sep 30
Multiple Airlines Logo
9:00 am - 6:50 pm
JFK
-
BFS
28h 50m
3 stops
Multiple Airlines Logo
8:30 am - 11:25 am
BFS
-
JFK
31h 55m
2 stops
$754Multiple Airlines
Sun, May 31 - Wed, Jun 3
British Airways Logo
6:30 pm - 10:45 am
JFK
-
BHD
11h 15m
1 stop
British Airways Logo
1:45 pm - 7:40 pm
BHD
-
JFK
10h 55m
1 stop
$906British Airways
Tue, Sep 1 - Tue, Sep 8
British Airways Logo
6:30 pm - 10:15 am
EWR
-
BHD
10h 45m
1 stop
British Airways Logo
12:25 pm - 7:35 pm
BHD
-
EWR
12h 10m
1 stop
$906British Airways
Wed, Nov 4 - Wed, Nov 18
American Airlines Logo
5:55 pm - 3:20 pm
DFW
-
BHD
15h 25m
1 stop
American Airlines Logo
9:40 am - 8:35 pm
BHD
-
DFW
16h 55m
1 stop
$941American Airlines
Tue, Aug 18 - Tue, Sep 1
KLM Logo
2:00 pm - 9:20 am
LGA
-
BHD
14h 20m
2 stops
KLM Logo
9:50 am - 8:32 pm
BHD
-
LGA
15h 42m
2 stops
$992KLM
Sun, Sep 20 - Wed, Sep 30
American Airlines Logo
12:47 pm - 10:10 am
DFW
-
BHD
15h 23m
2 stops
American Airlines Logo
10:05 am - 8:35 pm
BHD
-
DFW
16h 30m
1 stop
$1,065American Airlines
Thu, Aug 6 - Wed, Aug 12

Delta flights from United States to Belfast

Our best Delta deals on United States to Belfast flight tickets
Delta
Sep 8
JFK8:40 amNew York John F Kennedy Intl
19h 40m
2 stops
BHD9:20 amBelfast City
Sep 11
BHD9:50 amBelfast City
12h 15m
1 stop
JFK5:05 pmNew York John F Kennedy Intl
$1,019
Delta
Aug 10
EWR3:10 pmNewark
20h 45m
2 stops
BHD4:55 pmBelfast City
Aug 19
BHD9:50 amBelfast City
27h 04m
2 stops
EWR7:54 amNewark
$1,075
Delta
Aug 7
EWR9:30 amNewark
18h 50m
2 stops
BHD9:20 amBelfast City
Aug 19
BHD9:50 amBelfast City
27h 04m
2 stops
EWR7:54 amNewark
$1,125

British Airways flights from United States to Belfast

Our best British Airways deals on United States to Belfast flight tickets
British Airways
Sep 1
JFK6:30 pmNew York John F Kennedy Intl
11h 15m
1 stop
BHD10:45 amBelfast City
Sep 8
BHD1:45 pmBelfast City
10h 55m
1 stop
JFK7:40 pmNew York John F Kennedy Intl
$906
British Airways
Nov 4
JFK5:32 pmNew York John F Kennedy Intl
15h 43m
2 stops
BHD2:15 pmBelfast City
Nov 18
BHD9:15 amBelfast City
11h 45m
1 stop
JFK4:00 pmNew York John F Kennedy Intl
$911
British Airways
Sep 20
JFK5:30 pmNew York John F Kennedy Intl
16h 05m
2 stops
BHD2:35 pmBelfast City
Sep 30
BHD10:05 amBelfast City
11h 10m
1 stop
JFK4:15 pmNew York John F Kennedy Intl
$915

momondo Fare Finder

 
Customize your flight search to find flights from United States to Belfast 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 May 18, 2026.
Use the filters below to find and compare flights from the United States to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 6/1

1:10 am-11:20 pm

1 stop17h 10m

Belfast Intl

Tue 6/16

8:15 pm-11:00 pm

1 stop31h 45m

$689

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 6/1

1:10 am-11:05 pm

2 stops16h 55m

Belfast Intl

Tue 6/16

8:15 pm-11:00 pm

1 stop31h 45m

$717

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 9/20

6:20 pm-12:20 pm

1 stop13h 00m

Belfast Intl

Wed 9/30

8:15 pm-3:55 pm

1 stop24h 40m

$718

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 9/20

6:20 pm-12:20 pm

1 stop13h 00m

Belfast Intl

Wed 9/30

8:30 am-10:30 pm

2 stops43h 00m

$732

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 5/31

9:00 am-6:50 pm

3 stops28h 50m

Belfast Intl

Wed 6/3

8:30 am-11:25 am

2 stops31h 55m

$754
Quickest round-trip

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 9/1

6:30 pm-10:45 am

1 stop11h 15m

Belfast City

Tue 9/8

1:45 pm-7:40 pm

1 stop10h 55m

$906

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Wed 11/4

6:30 pm-10:15 am

1 stop10h 45m

Belfast City

Wed 11/18

12:25 pm-7:35 pm

1 stop12h 10m

$906

DallasBelfast

DFW - BHD

DFWBHD

Dallas/Fort Worth

Tue 8/18

5:55 pm-3:20 pm

1 stop15h 25m

Belfast City

Tue 9/1

9:40 am-8:35 pm

1 stop16h 55m

$941

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Sun 9/20

2:00 pm-9:20 am

2 stops14h 20m

Belfast City

Wed 9/30

9:50 am-8:32 pm

2 stops15h 42m

$992

DallasBelfast

DFW - BHD

DFWBHD

Dallas/Fort Worth

Thu 8/6

12:47 pm-10:10 am

2 stops15h 23m

Belfast City

Wed 8/12

10:05 am-8:35 pm

1 stop16h 30m

$1,065

Flights are sorted by cheapest round-trip flights first.

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

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

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?

In general, November is the cheapest month to fly from United States to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $460. If you don’t want to visit Belfast in November, then you should wait until March to fly from United States, when ticket prices are also cheap, with an average price of $513.

Cheap United States to Belfast flight deals and tips

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

Fastest flight time

9h 50m

Direct flights

None
The fastest flight from United States to Belfast takes 9h 50m
There are no direct flights from United States to Belfast. There are no popular flight routes from United States to Belfast.
Search flight deals

Frequently asked questions about flying from the United States to Belfast

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

    Prices for flights from United States to Belfast refresh daily.

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

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

    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.

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

    The required travel and health documents for your Belfast 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. 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

Compare and see reviews for airlines that fly from United States to Belfast with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $504Free CancellationRating
7.1
11,657 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,985 reviews
Search British Airways flights
DeltaPriceFrom $973Free CancellationRating
7.9
8,452 reviews
Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from United States.

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

Yes. All flights to Belfast from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Belfast from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from United States to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

An easier way to manage your Belfast trip

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport