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Cheap flights from Philadelphia to Belfast from $999

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 3/21. 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
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
3:30 pm - 9:40 pm
PHL
-
BFS
26h 10m
3 stops
Multiple Airlines Logo
7:30 pm - 3:44 pm
BFS
-
PHL
24h 14m
2 stops
$999Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
5:40 pm - 8:45 pm
PHL
-
BFS
22h 05m
3 stops
Multiple Airlines Logo
6:15 am - 6:55 pm
BFS
-
PHL
41h 40m
3 stops
$1,168Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
8:18 am - 10:20 pm
PHL
-
BFS
34h 02m
3 stops
Multiple Airlines Logo
4:35 pm - 5:00 pm
BFS
-
PHL
28h 25m
2 stops
$1,233Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
3:30 pm - 7:55 pm
PHL
-
BFS
24h 25m
2 stops
Multiple Airlines Logo
9:40 am - 4:05 pm
BFS
-
PHL
34h 25m
2 stops
$1,241Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
8:18 am - 3:25 pm
PHL
-
BFS
27h 07m
3 stops
Multiple Airlines Logo
7:50 pm - 6:55 pm
BFS
-
PHL
27h 05m
3 stops
$1,257Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
5:40 pm - 8:45 pm
PHL
-
BFS
22h 05m
3 stops
Multiple Airlines Logo
8:15 pm - 2:48 pm
BFS
-
PHL
23h 33m
2 stops
$1,272Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
5:21 pm - 10:20 pm
PHL
-
BFS
24h 59m
2 stops
Multiple Airlines Logo
4:35 pm - 5:00 pm
BFS
-
PHL
28h 25m
2 stops
$1,355Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
10:05 am - 3:20 pm
PHL
-
BFS
24h 15m
3 stops
Multiple Airlines Logo
6:20 am - 6:55 pm
BFS
-
PHL
17h 35m
2 stops
$1,535Multiple Airlines
Wed, Jul 15 - Sat, Jul 25
Multiple Airlines Logo
8:25 pm - 9:50 pm
PHL
-
BFS
20h 25m
2 stops
Multiple Airlines Logo
8:15 pm - 6:55 pm
BFS
-
PHL
27h 40m
3 stops
$1,537Multiple Airlines
Fri, Jul 24 - Sat, Aug 1
Multiple Airlines Logo
8:25 pm - 9:50 pm
PHL
-
BFS
20h 25m
2 stops
Multiple Airlines Logo
8:15 pm - 2:48 pm
BFS
-
PHL
23h 33m
2 stops
$1,540Multiple Airlines
Fri, May 15 - Fri, May 22

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 February 4, 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

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 3/21

3:30 pm-9:40 pm

3 stops26h 10m

Belfast Intl

Sat 3/28

7:30 pm-3:44 pm

2 stops24h 14m

$999

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Fri 5/15

5:40 pm-8:45 pm

3 stops22h 05m

Belfast Intl

Fri 5/22

6:15 am-6:55 pm

3 stops41h 40m

$1,168

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 3/19

8:18 am-10:20 pm

3 stops34h 02m

Belfast Intl

Thu 3/26

4:35 pm-5:00 pm

2 stops28h 25m

$1,233

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 3/21

3:30 pm-7:55 pm

2 stops24h 25m

Belfast Intl

Sat 3/28

9:40 am-4:05 pm

2 stops34h 25m

$1,241

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 3/21

8:18 am-3:25 pm

3 stops27h 07m

Belfast Intl

Sat 3/28

7:50 pm-6:55 pm

3 stops27h 05m

$1,257

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Fri 5/15

5:40 pm-8:45 pm

3 stops22h 05m

Belfast Intl

Fri 5/22

8:15 pm-2:48 pm

2 stops23h 33m

$1,272

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 3/19

5:21 pm-10:20 pm

2 stops24h 59m

Belfast Intl

Thu 3/26

4:35 pm-5:00 pm

2 stops28h 25m

$1,355

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 7/15

10:05 am-3:20 pm

3 stops24h 15m

Belfast Intl

Sat 7/25

6:20 am-6:55 pm

2 stops17h 35m

$1,535

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Fri 7/24

8:25 pm-9:50 pm

2 stops20h 25m

Belfast Intl

Sat 8/1

8:15 pm-6:55 pm

3 stops27h 40m

$1,537

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Fri 5/15

8:25 pm-9:50 pm

2 stops20h 25m

Belfast Intl

Fri 5/22

8:15 pm-2:48 pm

2 stops23h 33m

$1,540

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

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.
Search flight deals

  • 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
American AirlinesPriceFrom $619Free CancellationRating
7.2
11,222 reviews
Search American Airlines flights
British AirwaysPriceFrom $621Free CancellationRating
6.7
7,715 reviews
Search British Airways flights

  • 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.

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