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

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

How can I save money on flights from Philadelphia to Belfast Intl Airport 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 Intl Airport?

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

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

As of August 2026, there is 1 operator available to choose from for flights from Philadelphia Airport to Belfast Intl Airport.

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

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

The travel and health documents you'll need for your trip to Belfast Intl Airport 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 Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,098 Cheap Flights from Philadelphia to Belfast Intl Airport 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.

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

5:40 pm - 11:45 amPHL Philadelphia-BFS Belfast Intl

13h 05m2 stops Dublin Edinburgh Turnhouse

9:40 am - 4:10 pmBFS Belfast Intl-PHL Philadelphia

35h 30m3 stops Bristol Berlin Brandenburg Dublin

$1,123Multiple Airlines

Sun, Nov 22 - Mon, Nov 30

4:20 pm - 11:15 amPHL Philadelphia-BFS Belfast Intl

13h 55m2 stops Toronto Pearson Intl Edinburgh Turnhouse

10:50 am - 4:05 pmBFS Belfast Intl-PHL Philadelphia

34h 15m3 stops Edinburgh Turnhouse Zurich Frankfurt am Main

$1,129Multiple Airlines

Mon, Oct 12 - Mon, Oct 19

4:20 pm - 5:25 pmPHL Philadelphia-BFS Belfast Intl

20h 05m2 stops Toronto Pearson Intl Edinburgh Turnhouse

10:05 pm - 3:41 pmBFS Belfast Intl-PHL Philadelphia

22h 36m2 stops Edinburgh Turnhouse Toronto Pearson Intl

$1,131Multiple Airlines

Sun, Oct 4 - Sun, Oct 11

4:20 pm - 5:25 pmPHL Philadelphia-BFS Belfast Intl

20h 05m2 stops Toronto Pearson Intl Edinburgh Turnhouse

10:05 pm - 9:32 pmBFS Belfast Intl-PHL Philadelphia

28h 27m3 stops Edinburgh Turnhouse Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,132Multiple Airlines

Sun, Oct 4 - Sun, Oct 11

3:25 pm - 3:20 pmPHL Philadelphia-BFS Belfast Intl

18h 55m3 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat Nottingham East Midlands

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

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

$1,159Multiple Airlines

Sun, Oct 11 - Fri, Oct 16

3:20 pm - 9:20 pmPHL Philadelphia-BFS Belfast Intl

25h 00m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Edinburgh Turnhouse

5:20 pm - 4:21 pmBFS Belfast Intl-PHL Philadelphia

28h 01m3 stops Edinburgh Turnhouse Frankfurt am Main Toronto Pearson Intl

$1,168Multiple Airlines

Sun, Nov 22 - Mon, Nov 30

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

21h 05m2 stops Dublin Bristol

6:15 am - 6:55 pmBFS Belfast Intl-PHL Philadelphia

17h 40m2 stops Malaga Dublin

$1,211Multiple Airlines

Sun, Oct 11 - Fri, Oct 16

5:40 pm - 11:35 amPHL Philadelphia-BFS Belfast Intl

12h 55m2 stops Dublin Leeds/Bradford

10:05 pm - 4:05 pmBFS Belfast Intl-PHL Philadelphia

23h 00m2 stops Manchester Frankfurt am Main

$1,237Multiple Airlines

Sun, Nov 22 - Mon, Nov 30

4:20 pm - 1:25 pmPHL Philadelphia-BFS Belfast Intl

16h 05m2 stops Toronto Pearson Intl Edinburgh Turnhouse

8:20 am - 10:46 pmBFS Belfast Intl-PHL Philadelphia

19h 26m2 stops London Gatwick Toronto Pearson Intl

$1,287Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 11/22

5:40 pm-11:45 am

2 stops13h 05m

Belfast Intl

Mon 11/30

9:40 am-4:10 pm

3 stops35h 30m

$1,123

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Mon 10/12

4:20 pm-11:15 am

2 stops13h 55m

Belfast Intl

Mon 10/19

10:50 am-4:05 pm

3 stops34h 15m

$1,129

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 10/4

4:20 pm-5:25 pm

2 stops20h 05m

Belfast Intl

Sun 10/11

10:05 pm-3:41 pm

2 stops22h 36m

$1,131

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 10/4

4:20 pm-5:25 pm

2 stops20h 05m

Belfast Intl

Sun 10/11

10:05 pm-9:32 pm

3 stops28h 27m

$1,132

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 10/11

3:25 pm-3:20 pm

3 stops18h 55m

Belfast Intl

Fri 10/16

4:45 pm-6:55 pm

3 stops31h 10m

$1,159

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 11/22

3:20 pm-9:20 pm

3 stops25h 00m

Belfast Intl

Mon 11/30

5:20 pm-4:21 pm

3 stops28h 01m

$1,168

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

6:15 am-6:55 pm

2 stops17h 40m

$1,211

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Sun 11/22

5:40 pm-11:35 am

2 stops12h 55m

Belfast Intl

Mon 11/30

10:05 pm-4:05 pm

2 stops23h 00m

$1,237

Quickest round-trip

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Tue 9/15

4:20 pm-1:25 pm

2 stops16h 05m

Belfast Intl

Tue 9/22

8:20 am-10:46 pm

2 stops19h 26m

$1,287

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Philadelphia to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Belfast Intl Airport (PHL to BFS) flight deals and tips

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

Best Price Found	$1,098
Fastest flight time	11h 00m
Direct flights	None

The best flight deal from Philadelphia to Belfast Intl Airport found on momondo in the last 72 hours is $1,098

The fastest flight from Philadelphia to Belfast Intl Airport takes 11h 00m

There are no direct flights from Philadelphia to Belfast Intl Airport. There are no popular flight routes from Philadelphia to Belfast Intl Airport.

Search flight deals

Frequently asked questions about flying from Philadelphia to Belfast Intl Airport

How far is Philadelphia to Belfast Intl by plane?
A flight from Philadelphia to Belfast Intl will travel around 3238.7 mi. By plane, this route typically takes 11h 00m.
When did momondo last update prices for flights from Philadelphia Airport to Belfast Intl Airport?
Prices for flights from Philadelphia Airport to Belfast Intl Airport are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Belfast Intl Airport?
As of August 2026, there is 1 operator available to choose from for flights from Philadelphia Airport to Belfast Intl Airport.
How old do you have to be to fly from Philadelphia Airport 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 Philadelphia Airport to Belfast Intl Airport.
What documentation or ID do you need to fly to Belfast Intl Airport?
The travel and health documents you'll need for your trip to Belfast Intl Airport 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 Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Philadelphia to Belfast Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Belfast Intl Airport is British Airways, representing 100% of all bookings.

Best airlines flying from Philadelphia to Belfast Intl Airport

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $577	Free Cancellation	Rating 6.7 8,189 reviews		Search British Airways flights

Frequently asked questions about flying from Philadelphia to Belfast Intl Airport

How do I get Price Alerts for flights from Philadelphia to Belfast Intl Airport?
Search flight deals from Philadelphia to Belfast Intl Airport. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Philadelphia to Belfast Intl Airport 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.

Armagh

Ballymena

Newry

Dungannon

Why use momondo?

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

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

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

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

How can momondo help me find flights from Philadelphia to Belfast?

Once you have performed a search for Philadelphia to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Belfast from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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Cheap flights from Philadelphia to Belfast from $1,098

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 10/11. 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

momondo Fare Finder

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

When to book flights from Philadelphia to Belfast Intl Airport

Cheap Philadelphia to Belfast Intl Airport (PHL to BFS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Belfast Intl Airport

Best airlines flying from Philadelphia to Belfast Intl Airport

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

Frequently asked questions about flying from Philadelphia to Belfast Intl Airport

Traveling to a place near Belfast?

Why use momondo?

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.

Get notified when prices go down

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

Find better results for your trip to Belfast

Popular cities in the United Kingdom

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

Philadelphia flight routes

According to popular flight searches on momondo this year

Belfast Intl Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Belfast

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

Cabin classes currently available on flights to Belfast

List of cabin classes available on flights landing in Belfast. Availability may vary depending on flight origin and airline.

Complete your trip to Belfast

Explore popular destinations other users love

According to popular flight searches on momondo this year