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Cheap flights from Philadelphia to Belfast from $339

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 7/7. 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 Philadelphia to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 7:30 pm
PHL
-
BFS
31h 30m
2 stops
Multiple Airlines Logo
7:00 am - 6:55 pm
BFS
-
PHL
40h 55m
3 stops
$1,102Multiple Airlines
Thu, Sep 10 - Sun, Sep 27
Multiple Airlines Logo
7:00 am - 7:30 pm
PHL
-
BFS
31h 30m
2 stops
Multiple Airlines Logo
9:05 pm - 4:05 pm
BFS
-
PHL
24h 00m
2 stops
$1,133Multiple Airlines
Thu, Sep 10 - Sun, Sep 27
Multiple Airlines Logo
3:25 pm - 7:30 pm
PHL
-
BFS
23h 05m
3 stops
Multiple Airlines Logo
7:00 am - 6:55 pm
BFS
-
PHL
40h 55m
3 stops
$1,199Multiple Airlines
Thu, Sep 10 - Sun, Sep 27
Multiple Airlines Logo
10:25 am - 8:55 am
PHL
-
BFS
17h 30m
2 stops
Multiple Airlines Logo
7:30 am - 6:55 pm
BFS
-
PHL
16h 25m
2 stops
$1,219Multiple Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
10:05 am - 8:55 am
PHL
-
BFS
17h 50m
3 stops
Multiple Airlines Logo
7:30 am - 6:55 pm
BFS
-
PHL
16h 25m
2 stops
$1,223Multiple Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
5:40 pm - 10:50 pm
PHL
-
BFS
24h 10m
2 stops
Multiple Airlines Logo
10:40 pm - 6:55 pm
BFS
-
PHL
25h 15m
2 stops
$1,331Multiple Airlines
Thu, May 14 - Thu, May 21
Multiple Airlines Logo
10:50 am - 7:15 pm
PHL
-
BFS
27h 25m
2 stops
Multiple Airlines Logo
9:55 pm - 3:39 pm
BFS
-
PHL
22h 44m
2 stops
$1,359Multiple Airlines
Wed, Jun 24 - Mon, Jun 29
Multiple Airlines Logo
10:05 am - 7:15 pm
PHL
-
BFS
28h 10m
3 stops
Multiple Airlines Logo
9:55 pm - 3:39 pm
BFS
-
PHL
22h 44m
2 stops
$1,361Multiple Airlines
Wed, Jun 24 - Mon, Jun 29
Multiple Airlines Logo
4:20 pm - 6:55 pm
PHL
-
BFS
21h 35m
2 stops
Multiple Airlines Logo
8:20 pm - 6:55 pm
BFS
-
PHL
27h 35m
3 stops
$1,362Multiple Airlines
Sat, Jun 13 - Sun, Jun 21
Multiple Airlines Logo
10:05 am - 7:15 pm
PHL
-
BFS
28h 10m
3 stops
Multiple Airlines Logo
9:55 pm - 3:39 pm
BFS
-
PHL
22h 44m
2 stops
$1,364Multiple Airlines
Wed, Jun 24 - Mon, Jun 29

momondo Fare Finder

 
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 April 3, 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 - BFS

PHLBFS

Philadelphia

Thu 9/10

7:00 am-7:30 pm

2 stops31h 30m

Belfast Intl

Sun 9/27

7:00 am-6:55 pm

3 stops40h 55m

$1,102

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 9/10

7:00 am-7:30 pm

2 stops31h 30m

Belfast Intl

Sun 9/27

9:05 pm-4:05 pm

2 stops24h 00m

$1,133

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 9/10

3:25 pm-7:30 pm

3 stops23h 05m

Belfast Intl

Sun 9/27

7:00 am-6:55 pm

3 stops40h 55m

$1,199
Quickest round-trip

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 5/30

10:25 am-8:55 am

2 stops17h 30m

Belfast Intl

Wed 6/3

7:30 am-6:55 pm

2 stops16h 25m

$1,219

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 5/30

10:05 am-8:55 am

3 stops17h 50m

Belfast Intl

Wed 6/3

7:30 am-6:55 pm

2 stops16h 25m

$1,223

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 5/14

5:40 pm-10:50 pm

2 stops24h 10m

Belfast Intl

Thu 5/21

10:40 pm-6:55 pm

2 stops25h 15m

$1,331

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 6/24

10:50 am-7:15 pm

2 stops27h 25m

Belfast Intl

Mon 6/29

9:55 pm-3:39 pm

2 stops22h 44m

$1,359

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 6/24

10:05 am-7:15 pm

3 stops28h 10m

Belfast Intl

Mon 6/29

9:55 pm-3:39 pm

2 stops22h 44m

$1,361

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 6/13

4:20 pm-6:55 pm

2 stops21h 35m

Belfast Intl

Sun 6/21

8:20 pm-6:55 pm

3 stops27h 35m

$1,362

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 6/24

10:05 am-7:15 pm

3 stops28h 10m

Belfast Intl

Mon 6/29

9:55 pm-3:39 pm

2 stops22h 44m

$1,364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

Fastest flight time

10h 45m

Direct flights

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

  • 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
7,848 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
Cookstown
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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