How do I get Price Alerts for flights from Philadelphia to Belfast?

Search flight deals from Philadelphia to Belfast . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Philadelphia to Belfast with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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?

As of August 2026, there is 1 operator available to choose from 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.

$848 Cheap Flights from Philadelphia to Belfast in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Belfast

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 pm - 10:50 amPHL Philadelphia-BHD Belfast City

11h 15m1 stop London Heathrow

5:35 pm - 4:15 pmBHD Belfast City-PHL Philadelphia

27h 40m1 stop London Heathrow

$848British Airways

Tue, Jan 19 - Wed, Feb 3

6:45 pm - 10:45 amPHL Philadelphia-BHD Belfast City

11h 00m1 stop London Heathrow

9:40 am - 4:40 pmBHD Belfast City-PHL Philadelphia

12h 00m1 stop London Heathrow

$858British Airways

Tue, Sep 15 - Tue, Sep 22

7:35 pm - 10:50 amPHL Philadelphia-BHD Belfast City

11h 15m1 stop London Heathrow

7:40 pm - 2:05 pmBHD Belfast City-PHL Philadelphia

23h 25m2 stops London Heathrow Dublin

$862British Airways

Tue, Oct 27 - Mon, Nov 2

6:00 pm - 2:50 pmPHL Philadelphia-BHD Belfast City

16h 50m2 stops Cincinnati Cinci./N. Kentucky London Heathrow

7:40 pm - 2:05 pmBHD Belfast City-PHL Philadelphia

23h 25m2 stops London Heathrow Dublin

$864British Airways

Tue, Oct 27 - Mon, Nov 2

7:35 pm - 10:50 amPHL Philadelphia-BHD Belfast City

11h 15m1 stop London Heathrow

7:40 pm - 1:50 pmBHD Belfast City-PHL Philadelphia

23h 10m1 stop London Heathrow

$874British Airways

Tue, Oct 27 - Mon, Nov 2

6:45 pm - 12:55 pmPHL Philadelphia-BHD Belfast City

13h 10m1 stop London Heathrow

6:30 pm - 4:40 pmBHD Belfast City-PHL Philadelphia

27h 10m1 stop London Heathrow

$875British Airways

Mon, Oct 12 - Mon, Oct 19

12:41 pm - 10:50 amPHL Philadelphia-BHD Belfast City

17h 09m2 stops Chicago O'Hare Intl London Heathrow

3:45 pm - 2:05 pmBHD Belfast City-PHL Philadelphia

27h 20m2 stops London Heathrow Dublin

$876British Airways

Tue, Jan 19 - Wed, Feb 3

6:45 pm - 10:45 amPHL Philadelphia-BHD Belfast City

11h 00m1 stop London Heathrow

8:25 pm - 4:10 pmBHD Belfast City-PHL Philadelphia

24h 45m2 stops London Heathrow Paris Charles de Gaulle

$885British Airways

Tue, Sep 15 - Tue, Sep 22

5:30 pm - 5:15 pmPHL Philadelphia-BFS Belfast Intl

18h 45m2 stops Dublin Edinburgh Turnhouse

8:50 pm - 10:56 pmBFS Belfast Intl-PHL Philadelphia

31h 06m3 stops London Gatwick Zurich Toronto Pearson Intl

$1,088Multiple Airlines

Wed, Nov 25 - Mon, Nov 30

8:25 pm - 10:30 pmPHL Philadelphia-BFS Belfast Intl

21h 05m2 stops Dublin Bristol

4:45 pm - 6:55 pmBFS Belfast Intl-PHL Philadelphia

31h 10m3 stops Edinburgh Turnhouse Geneva Geneve-Cointrin Dublin

$1,098Multiple Airlines

Sun, Oct 11 - Fri, Oct 16

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

British Airways flights from Philadelphia to Belfast

Our best British Airways deals on Philadelphia to Belfast flight tickets

British Airways

Jan 19

PHL6:35 pmPhiladelphia

11h 15m

1 stop

BHD10:50 amBelfast City

Feb 3

BHD5:35 pmBelfast City

27h 40m

1 stop

PHL4:15 pmPhiladelphia

$848

British Airways

Sep 15

PHL6:45 pmPhiladelphia

11h 00m

1 stop

BHD10:45 amBelfast City

Sep 22

BHD9:40 amBelfast City

12h 00m

1 stop

PHL4:40 pmPhiladelphia

$858

British Airways

Oct 27

PHL7:35 pmPhiladelphia

11h 15m

1 stop

BHD10:50 amBelfast City

Nov 2

BHD7:40 pmBelfast City

23h 25m

2 stops

PHL2:05 pmPhiladelphia

$862

American Airlines flights from Philadelphia to Belfast

Our best American Airlines deals on Philadelphia to Belfast flight tickets

American Airlines

Nov 20

PHL4:17 pmPhiladelphia

13h 38m

2 stops

BHD10:55 amBelfast City

Nov 27

BHD6:45 amBelfast City

12h 05m

1 stop

PHL1:50 pmPhiladelphia

$957

American Airlines

Nov 20

PHL4:25 pmPhiladelphia

13h 30m

2 stops

BHD10:55 amBelfast City

Nov 27

BHD6:45 amBelfast City

12h 00m

1 stop

PHL1:45 pmPhiladelphia

$958

American Airlines

Nov 20

PHL4:17 pmPhiladelphia

13h 38m

2 stops

BHD10:55 amBelfast City

Nov 27

BHD8:35 amBelfast City

17h 24m

2 stops

PHL8:59 pmPhiladelphia

$967

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 1/19

6:35 pm-10:50 am

1 stop11h 15m

Belfast City

Wed 2/3

5:35 pm-4:15 pm

1 stop27h 40m

$848

Quickest round-trip

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 9/15

6:45 pm-10:45 am

1 stop11h 00m

Belfast City

Tue 9/22

9:40 am-4:40 pm

1 stop12h 00m

$858

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 10/27

7:35 pm-10:50 am

1 stop11h 15m

Belfast City

Mon 11/2

7:40 pm-2:05 pm

2 stops23h 25m

$862

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 10/27

6:00 pm-2:50 pm

2 stops16h 50m

Belfast City

Mon 11/2

7:40 pm-2:05 pm

2 stops23h 25m

$864

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 10/27

7:35 pm-10:50 am

1 stop11h 15m

Belfast City

Mon 11/2

7:40 pm-1:50 pm

1 stop23h 10m

$874

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Mon 10/12

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Mon 10/19

6:30 pm-4:40 pm

1 stop27h 10m

$875

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 1/19

12:41 pm-10:50 am

2 stops17h 09m

Belfast City

Wed 2/3

3:45 pm-2:05 pm

2 stops27h 20m

$876

PhiladelphiaBelfast

PHL Philadelphia - BHD Belfast City

PHLBHD

Philadelphia

Tue 9/15

6:45 pm-10:45 am

1 stop11h 00m

Belfast City

Tue 9/22

8:25 pm-4:10 pm

2 stops24h 45m

$885

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 11/25

5:30 pm-5:15 pm

2 stops18h 45m

Belfast Intl

Mon 11/30

8:50 pm-10:56 pm

3 stops31h 06m

$1,088

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 10/11

8:25 pm-10:30 pm

2 stops21h 05m

Belfast Intl

Fri 10/16

4:45 pm-6:55 pm

3 stops31h 10m

$1,098

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Philadelphia to Belfast flight deals and tips

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

Best Price Found	$848
Fastest flight time	11h 15m
Direct flights	None

The best flight deal from Philadelphia to Belfast found on momondo in the last 72 hours is $848

The fastest flight from Philadelphia to Belfast takes 11h 15m

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 11h 15m.
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?
As of August 2026, there is 1 operator available to choose from 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 Airways	PriceFrom $577	Free Cancellation	Rating 6.7 8,186 reviews		Search British Airways flights

Frequently asked questions about flying from Philadelphia to Belfast

How do I get Price Alerts for flights from Philadelphia to Belfast?
Search flight deals from Philadelphia to Belfast. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Philadelphia to Belfast with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.

An easier way to manage your Belfast 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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 9/22

Tue 9/29

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Nearby airports

Airlines

Other United Kingdom destinations

Other flights from Philadelphia

Complete your trip

Feeling lucky

Fly into one of these airports located in Belfast

Belfast Intl Airport

Belfast City Airport

Cheap flights from Philadelphia to Belfast from $848

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Belfast departing on 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Philadelphia to Belfast

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

British Airways flights from Philadelphia to Belfast

Our best British Airways deals on Philadelphia to Belfast flight tickets

American Airlines flights from Philadelphia to Belfast

Our best American Airlines deals on Philadelphia to Belfast flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Belfast that are best for you.

Cheap Philadelphia to Belfast flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Belfast

Best airlines flying from Philadelphia to Belfast

Compare and see reviews for airlines that fly from Philadelphia to Belfast with momondo

Frequently asked questions about flying from Philadelphia to Belfast

Why use momondo?

An easier way to manage your Belfast 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favorite airline to Belfast

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Philadelphia

According to popular flight searches on momondo this year

Complete your trip to Belfast

Explore popular destinations other users love

According to popular flight searches on momondo this year