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Cheap flights from Philadelphia to Belfast from $316

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 10/5. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:05 pm - 7:45 pmPHL  Philadelphia-BFS Belfast Intl
21h 40m2 stops Toronto Pearson Intl Manchester
Multiple Airlines Logo
7:15 am - 4:00 pmBFS  Belfast Intl-PHL Philadelphia
37h 45m3 stops Manchester Berlin Brandenburg Dublin
$1,002Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
9:15 am - 3:25 pmPHL  Philadelphia-BFS Belfast Intl
25h 10m3 stops Toronto Pearson Intl Frankfurt am Main Václav Havel Prague
Multiple Airlines Logo
7:15 am - 4:00 pmBFS  Belfast Intl-PHL Philadelphia
37h 45m3 stops Manchester Berlin Brandenburg Dublin
$1,041Multiple Airlines
Wed, Nov 25 - Mon, Nov 30
Multiple Airlines Logo
3:25 pm - 10:20 pmPHL  Philadelphia-BFS Belfast Intl
25h 55m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Manchester
Multiple Airlines Logo
8:15 pm - 9:32 pmBFS  Belfast Intl-PHL Philadelphia
30h 17m3 stops London Gatwick Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$1,089Multiple Airlines
Wed, Sep 23 - Fri, Sep 25
Multiple Airlines Logo
3:25 pm - 10:20 pmPHL  Philadelphia-BFS Belfast Intl
25h 55m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Manchester
Multiple Airlines Logo
8:15 pm - 10:46 pmBFS  Belfast Intl-PHL Philadelphia
31h 31m2 stops London Gatwick Toronto Pearson Intl
$1,094Multiple Airlines
Wed, Sep 23 - Fri, Sep 25
Multiple Airlines Logo
7:00 am - 3:15 pmPHL  Philadelphia-BFS Belfast Intl
27h 15m2 stops Toronto Pearson Intl Manchester
Multiple Airlines Logo
8:55 pm - 10:46 pmBFS  Belfast Intl-PHL Philadelphia
30h 51m2 stops London Gatwick Toronto Pearson Intl
$1,100Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
7:00 am - 3:15 pmPHL  Philadelphia-BFS Belfast Intl
27h 15m2 stops Toronto Pearson Intl Manchester
Multiple Airlines Logo
8:55 pm - 9:32 pmBFS  Belfast Intl-PHL Philadelphia
29h 37m3 stops London Gatwick Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$1,106Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
3:25 pm - 10:20 pmPHL  Philadelphia-BFS Belfast Intl
25h 55m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Manchester
Multiple Airlines Logo
8:55 pm - 10:46 pmBFS  Belfast Intl-PHL Philadelphia
30h 51m3 stops London Gatwick Zurich Toronto Pearson Intl
$1,145Multiple Airlines
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
3:25 pm - 10:20 pmPHL  Philadelphia-BFS Belfast Intl
25h 55m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Manchester
Multiple Airlines Logo
9:25 pm - 3:41 pmBFS  Belfast Intl-PHL Philadelphia
23h 16m2 stops Manchester Toronto Pearson Intl
$1,160Multiple Airlines
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
8:25 pm - 5:30 pmPHL  Philadelphia-BFS Belfast Intl
16h 05m2 stops Dublin Edinburgh Turnhouse
Multiple Airlines Logo
8:15 pm - 10:46 pmBFS  Belfast Intl-PHL Philadelphia
31h 31m2 stops London Gatwick Toronto Pearson Intl
$1,175Multiple Airlines
Wed, Sep 23 - Fri, Sep 25
Multiple Airlines Logo
7:00 am - 3:15 pmPHL  Philadelphia-BFS Belfast Intl
27h 15m2 stops Toronto Pearson Intl Manchester
Multiple Airlines Logo
6:05 am - 10:11 amBFS  Belfast Intl-PHL Philadelphia
33h 06m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,188Multiple Airlines
Tue, Sep 1 - Fri, Sep 4

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Customize your flight search to find flights from Philadelphia to Belfast Intl Airport 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 August 18, 2026.
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

Wed 11/25

5:05 pm-7:45 pm

2 stops21h 40m

Belfast Intl

Mon 11/30

7:15 am-4:00 pm

3 stops37h 45m

$1,002

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 11/25

9:15 am-3:25 pm

3 stops25h 10m

Belfast Intl

Mon 11/30

7:15 am-4:00 pm

3 stops37h 45m

$1,041

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 9/23

3:25 pm-10:20 pm

3 stops25h 55m

Belfast Intl

Fri 9/25

8:15 pm-9:32 pm

3 stops30h 17m

$1,089

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 9/23

3:25 pm-10:20 pm

3 stops25h 55m

Belfast Intl

Fri 9/25

8:15 pm-10:46 pm

2 stops31h 31m

$1,094

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Tue 9/15

7:00 am-3:15 pm

2 stops27h 15m

Belfast Intl

Tue 9/22

8:55 pm-10:46 pm

2 stops30h 51m

$1,100

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Tue 9/15

7:00 am-3:15 pm

2 stops27h 15m

Belfast Intl

Tue 9/22

8:55 pm-9:32 pm

3 stops29h 37m

$1,106

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 9/23

3:25 pm-10:20 pm

3 stops25h 55m

Belfast Intl

Tue 9/29

8:55 pm-10:46 pm

3 stops30h 51m

$1,145

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 9/23

3:25 pm-10:20 pm

3 stops25h 55m

Belfast Intl

Tue 9/29

9:25 pm-3:41 pm

2 stops23h 16m

$1,160
Quickest round-trip

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Wed 9/23

8:25 pm-5:30 pm

2 stops16h 05m

Belfast Intl

Fri 9/25

8:15 pm-10:46 pm

2 stops31h 31m

$1,175

PhiladelphiaBelfast

PHL Philadelphia - BFS Belfast Intl

PHLBFS

Philadelphia

Tue 9/1

7:00 am-3:15 pm

2 stops27h 15m

Belfast Intl

Fri 9/4

6:05 am-10:11 am

3 stops33h 06m

$1,188

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

$316

Fastest flight time

10h 30m

Direct flights

None
The best one-way flight to Belfast Intl Airport from Philadelphia in the past 72 hours is $316. The best round-trip flight deal from Philadelphia to Belfast Intl Airport found on momondo in the last 72 hours is $1,002.
The fastest flight from Philadelphia to Belfast Intl Airport takes 10h 30m
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 10h 30m.

  • 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?

  • 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?

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 AirwaysPriceFrom $577Free CancellationRating
6.7
8,174 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.

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
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

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