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Cheap flights from Philadelphia to Belfast from $377

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Belfast departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Philadelphia to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:45 pm - 7:25 pm
PHL
-
BHD
19h 40m
1 stop
British Airways Logo
10:05 am - 4:40 pm
BHD
-
PHL
11h 35m
1 stop
$879British Airways
Mon, Sep 7 - Wed, Sep 16
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
7:35 pm - 4:40 pm
BHD
-
PHL
26h 05m
1 stop
$882British Airways
Mon, Aug 17 - Mon, Aug 24
British Airways Logo
1:42 pm - 8:50 am
PHL
-
BHD
14h 08m
2 stops
British Airways Logo
10:05 am - 4:35 pm
BHD
-
PHL
11h 30m
1 stop
$884British Airways
Wed, May 13 - Wed, May 20
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
8:35 pm - 4:40 pm
BHD
-
PHL
25h 05m
1 stop
$886British Airways
Mon, Oct 5 - Thu, Oct 8
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
8:35 pm - 4:40 pm
BHD
-
PHL
25h 05m
1 stop
$887British Airways
Mon, Oct 5 - Thu, Oct 8
British Airways Logo
1:42 pm - 8:50 am
PHL
-
BHD
14h 08m
2 stops
British Airways Logo
7:35 pm - 12:10 pm
BHD
-
PHL
21h 35m
1 stop
$891British Airways
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
7:44 pm - 3:30 pm
PHL
-
BHD
14h 46m
2 stops
Multiple Airlines Logo
6:30 am - 4:40 pm
BHD
-
PHL
15h 10m
1 stop
$893Multiple Airlines
Mon, Sep 7 - Wed, Sep 16
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
6:30 am - 12:15 pm
BHD
-
PHL
34h 45m
2 stops
$910British Airways
Mon, Aug 17 - Mon, Aug 24
British Airways Logo
3:40 pm - 12:55 pm
PHL
-
BHD
16h 15m
2 stops
British Airways Logo
9:40 am - 12:15 pm
BHD
-
PHL
31h 35m
2 stops
$912British Airways
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
10:05 am - 11:55 am
PHL
-
BFS
20h 50m
3 stops
Multiple Airlines Logo
6:50 pm - 6:55 pm
BFS
-
PHL
29h 05m
3 stops
$1,123Multiple Airlines
Fri, Sep 11 - Mon, Sep 14

British Airways flights from Philadelphia to Belfast

Our best British Airways deals on Philadelphia to Belfast flight tickets
British Airways
Sep 7
PHL6:45 pmPhiladelphia
19h 40m
1 stop
BHD7:25 pmBelfast City
Sep 16
BHD10:05 amBelfast City
11h 35m
1 stop
PHL4:40 pmPhiladelphia
$879
British Airways
Aug 17
PHL6:45 pmPhiladelphia
13h 10m
1 stop
BHD12:55 pmBelfast City
Aug 24
BHD7:35 pmBelfast City
26h 05m
1 stop
PHL4:40 pmPhiladelphia
$882
British Airways
May 13
PHL1:42 pmPhiladelphia
14h 08m
2 stops
BHD8:50 amBelfast City
May 20
BHD10:05 amBelfast City
11h 30m
1 stop
PHL4:35 pmPhiladelphia
$884

Aer Lingus flights from Philadelphia to Belfast

Our best Aer Lingus deals on Philadelphia to Belfast flight tickets
Aer Lingus
Apr 20
PHL8:25 pmPhiladelphia
15h 10m
2 stops
BHD4:35 pmBelfast City
Apr 22
BHD6:30 pmBelfast City
29h 25m
2 stops
PHL6:55 pmPhiladelphia
$1,098
Aer Lingus
Apr 20
PHL8:25 pmPhiladelphia
15h 10m
2 stops
BHD4:35 pmBelfast City
Apr 22
BHD6:20 pmBelfast City
29h 35m
2 stops
PHL6:55 pmPhiladelphia
$1,146
Aer Lingus
Apr 21
PHL8:25 pmPhiladelphia
13h 35m
2 stops
BHD3:00 pmBelfast City
Apr 22
BHD6:20 pmBelfast City
29h 35m
2 stops
PHL6:55 pmPhiladelphia
$1,155

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 April 8, 2026.
Use the filters below to find and compare flights from Philadelphia to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 9/7

6:45 pm-7:25 pm

1 stop19h 40m

Belfast City

Wed 9/16

10:05 am-4:40 pm

1 stop11h 35m

$879

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 8/17

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Mon 8/24

7:35 pm-4:40 pm

1 stop26h 05m

$882
Quickest round-trip

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Wed 5/13

1:42 pm-8:50 am

2 stops14h 08m

Belfast City

Wed 5/20

10:05 am-4:35 pm

1 stop11h 30m

$884

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 10/5

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Thu 10/8

8:35 pm-4:40 pm

1 stop25h 05m

$886

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 10/5

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Thu 10/8

8:35 pm-4:40 pm

1 stop25h 05m

$887

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 5/4

1:42 pm-8:50 am

2 stops14h 08m

Belfast City

Mon 5/11

7:35 pm-12:10 pm

1 stop21h 35m

$891

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 9/7

7:44 pm-3:30 pm

2 stops14h 46m

Belfast City

Wed 9/16

6:30 am-4:40 pm

1 stop15h 10m

$893

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 8/17

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Mon 8/24

6:30 am-12:15 pm

2 stops34h 45m

$910

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 8/17

3:40 pm-12:55 pm

2 stops16h 15m

Belfast City

Mon 8/24

9:40 am-12:15 pm

2 stops31h 35m

$912

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Fri 9/11

10:05 am-11:55 am

3 stops20h 50m

Belfast Intl

Mon 9/14

6:50 pm-6:55 pm

3 stops29h 05m

$1,123

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 Philadelphia 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 airline that flies from Philadelphia to Belfast?

British Airways is the most popular carrier operating from Philadelphia to Belfast

Cheap Philadelphia to Belfast flight deals and tips

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

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Philadelphia to Belfast takes 10h 45m
There are no direct flights from Philadelphia to Belfast. There are no popular flight routes from Philadelphia to Belfast.
Search flight deals

Frequently asked questions about flying from Philadelphia to Belfast

  • How far is Philadelphia to Belfast by plane?

    There are 3250.7 mi between Philadelphia and Belfast. In terms of flight time, this usually takes a little over 10h 45m.

  • When did momondo last update prices for flights from Philadelphia Airport to Belfast?

    Prices for flights from Philadelphia Airport to Belfast are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Belfast?

  • How old do you have to be to fly from Philadelphia Airport 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 Philadelphia Airport 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.

Best airlines flying from Philadelphia to Belfast

Compare and see reviews for airlines that fly from Philadelphia to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $577Free CancellationRating
6.7
7,859 reviews
Search British Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Belfast. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Philadelphia to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia 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 help filter your options to help you make an informed choice when booking flights to Belfast from Philadelphia.

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

If you are not ready to book a flight from Philadelphia 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.

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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