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Flights to Belfast

$249 Cheap flights to Belfast

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Belfast departing on 8/8. 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

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Find the cheapest flights from the United States to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:00 pm - 10:40 am
BOS
-
BFS
54h 40m
2 stops
Multiple Airlines Logo
9:35 am - 9:05 pm
BFS
-
BOS
16h 30m
1 stop
$588Multiple Airlines
Sun, Oct 11 - Wed, Oct 21
Multiple Airlines Logo
6:20 pm - 11:55 am
JFK
-
BFS
12h 35m
1 stop
Multiple Airlines Logo
6:50 pm - 3:55 pm
BFS
-
JFK
26h 05m
1 stop
$593Multiple Airlines
Sat, Oct 10 - Mon, Oct 19
Multiple Airlines Logo
6:20 pm - 11:55 am
JFK
-
BFS
12h 35m
1 stop
Multiple Airlines Logo
8:40 pm - 3:55 pm
BFS
-
JFK
24h 15m
1 stop
$598Multiple Airlines
Sat, Oct 10 - Thu, Oct 22
Multiple Airlines Logo
11:00 pm - 11:10 pm
BOS
-
BFS
19h 10m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$604Multiple Airlines
Mon, Oct 12 - Thu, Oct 22
Multiple Airlines Logo
6:20 pm - 9:55 pm
JFK
-
BFS
22h 35m
1 stop
Multiple Airlines Logo
2:40 pm - 6:55 pm
BFS
-
JFK
33h 15m
2 stops
$611Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
British Airways Logo
3:18 pm - 10:30 am
LGA
-
BHD
14h 12m
2 stops
British Airways Logo
6:35 am - 7:21 pm
BHD
-
LGA
16h 46m
2 stops
$949British Airways
Sun, Oct 18 - Tue, Oct 27
British Airways Logo
5:30 pm - 3:30 pm
LGA
-
BHD
17h 00m
2 stops
British Airways Logo
6:35 am - 7:13 pm
BHD
-
LGA
17h 38m
2 stops
$972British Airways
Fri, Oct 23 - Wed, Nov 4
British Airways Logo
4:00 pm - 11:30 am
LGA
-
BHD
14h 30m
2 stops
British Airways Logo
6:30 am - 5:48 pm
BHD
-
LGA
16h 18m
2 stops
$1,005British Airways
Tue, Dec 8 - Sun, Dec 13
British Airways Logo
5:55 pm - 2:15 pm
LGA
-
BHD
15h 20m
2 stops
British Airways Logo
10:00 am - 9:30 pm
BHD
-
LGA
16h 30m
2 stops
$1,007British Airways
Wed, Dec 2 - Tue, Dec 8
KLM Logo
1:00 pm - 9:20 am
LGA
-
BHD
15h 20m
2 stops
KLM Logo
9:50 am - 8:34 pm
BHD
-
LGA
15h 44m
2 stops
$1,008KLM
Tue, Sep 29 - Wed, Oct 7

momondo Fare Finder

 
Locate flights to Belfast that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on July 23, 2026.
Use the filters below to find and compare flights to Belfast that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 10/11

11:00 pm-10:40 am

2 stops54h 40m

Belfast Intl

Wed 10/21

9:35 am-9:05 pm

1 stop16h 30m

$588

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sat 10/10

6:20 pm-11:55 am

1 stop12h 35m

Belfast Intl

Mon 10/19

6:50 pm-3:55 pm

1 stop26h 05m

$593

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sat 10/10

6:20 pm-11:55 am

1 stop12h 35m

Belfast Intl

Thu 10/22

8:40 pm-3:55 pm

1 stop24h 15m

$598

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 10/12

11:00 pm-11:10 pm

2 stops19h 10m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$604

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 9/13

6:20 pm-9:55 pm

1 stop22h 35m

Belfast Intl

Mon 9/28

2:40 pm-6:55 pm

2 stops33h 15m

$611

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Sun 10/18

3:18 pm-10:30 am

2 stops14h 12m

Belfast City

Tue 10/27

6:35 am-7:21 pm

2 stops16h 46m

$949

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Fri 10/23

5:30 pm-3:30 pm

2 stops17h 00m

Belfast City

Wed 11/4

6:35 am-7:13 pm

2 stops17h 38m

$972
Quickest round-trip

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Tue 12/8

4:00 pm-11:30 am

2 stops14h 30m

Belfast City

Sun 12/13

6:30 am-5:48 pm

2 stops16h 18m

$1,005

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Wed 12/2

5:55 pm-2:15 pm

2 stops15h 20m

Belfast City

Tue 12/8

10:00 am-9:30 pm

2 stops16h 30m

$1,007

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Tue 9/29

1:00 pm-9:20 am

2 stops15h 20m

Belfast City

Wed 10/7

9:50 am-8:34 pm

2 stops15h 44m

$1,008

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

Belfast flights insights and trends

Explore insights for your Belfast flight to craft the best travel plan

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 April to fly from United States, when ticket prices are also cheap, with an average price of $523.

Cheapest flights to Belfast

Find the cheapest flights to Belfast from your nearest city or airport

Cheap Belfast flight deals and tips

Summary info about Belfast flight prices, duration and airlines

Best One-Way Price

$249

Best Round-Trip Price

$588

Fastest flight time

16h 30m

Popular in

December
The best one-way flight price to Belfast from United States in the last 5 days is $249 (New York John F Kennedy Intl to Belfast Intl).
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The best round-trip flight price to Belfast from United States in the last 5 days is $588 (Boston Logan Intl to Belfast Intl).
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The fastest flight to Belfast from United States takes 16h 30m (Boston Logan Intl to Belfast City).
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December has the highest demand for flights to Belfast, with a 7% price increase on average.
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Frequently asked questions about flying to Belfast

Is there an alternative airport near Belfast?

Those flying to Belfast could potentially find better pricing at Belfast City Airport (3 mi from Belfast city center), Londonderry Eglinton Airport (58 mi from Belfast city center), Campbeltown Machrihanish Airport (59 mi from Belfast city center), Isle of Islay Glenegedale Airport (76 mi from Belfast city center) or Glasgow Prestwick Airport (82 mi from Belfast city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into Belfast?

Londonderry Eglinton Airport has an average price of $45 per person and is typically the cheapest airport to fly into when visiting Belfast. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Belfast?

$30 is the cheapest deal found on momondo in the last two weeks for a flight to Belfast. This flight is from Edinburgh and is 84% cheaper than most flights to Belfast. To find the cheapest price to Belfast from your area, use momondo’s Airport-to-Airport Pricing Tool.

What’s the closest airport to Queen's Quarter?

At 3.2 mi away, Belfast City airport in Belfast is the closest to Queen's Quarter.

When did momondo last update prices for flights to Belfast?

Prices for flights to Belfast were last updated today.

How many operators does momondo search for flights to Belfast?

As of July 2026, there are 9 operators available to choose from for flights to Belfast.

How old do you have to be to fly 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 to Belfast.

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

The travel and health documents you'll need for your trip to Belfast 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 Belfast. 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 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.

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

momondo does allow users to show only those flights to Belfast which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Belfast.

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

Price alerts on flights to Belfast 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.

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