$274 Find Cheap Flights from Philadelphia to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Belfast departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Belfast, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$788
British Airways
Mon 8/24Fri 8/28
PHL - BHD • 1 stop
Cheapest one-way
$274
British Airways
Sat 7/18
PHL - BHD • 2 stops
Top airlines
British Airways
Cheapest • from $788 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Belfast (PHL-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Belfast

Mon, Aug 24 - Fri, Aug 28
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
9:35 am - 4:40 pm
BHD
-
PHL
12h 05m
1 stop
$788British Airways
Mon, Aug 24 - Fri, Aug 28
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
6:30 am - 4:40 pm
BHD
-
PHL
15h 10m
1 stop
$789British Airways
Tue, Apr 28 - Sat, May 9
British Airways Logo
6:40 pm - 10:45 am
PHL
-
BHD
11h 05m
1 stop
British Airways Logo
7:05 am - 4:40 pm
BHD
-
PHL
14h 35m
1 stop
$797British Airways
Mon, Aug 24 - Fri, Aug 28
British Airways Logo
6:45 pm - 7:25 pm
PHL
-
BHD
19h 40m
1 stop
British Airways Logo
6:30 am - 4:40 pm
BHD
-
PHL
15h 10m
1 stop
$799British Airways
Tue, Apr 28 - Sat, May 9
Multiple Airlines Logo
6:40 pm - 10:45 am
PHL
-
BHD
11h 05m
1 stop
Multiple Airlines Logo
7:05 pm - 5:40 pm
BHD
-
PHL
27h 35m
2 stops
$816Multiple Airlines
Mon, May 18 - Fri, May 29
American Airlines Logo
7:35 pm - 12:55 pm
PHL
-
BHD
12h 20m
1 stop
American Airlines Logo
6:30 am - 3:25 pm
BHD
-
PHL
13h 55m
1 stop
$819American Airlines
Tue, Apr 28 - Sat, May 9
Multiple Airlines Logo
7:40 pm - 3:20 pm
PHL
-
BHD
14h 40m
2 stops
Multiple Airlines Logo
7:05 pm - 5:40 pm
BHD
-
PHL
27h 35m
2 stops
$820Multiple Airlines
Mon, May 18 - Fri, May 29
American Airlines Logo
7:35 pm - 12:55 pm
PHL
-
BHD
12h 20m
1 stop
American Airlines Logo
9:35 am - 9:10 pm
BHD
-
PHL
16h 35m
2 stops
$829American Airlines
Mon, Aug 24 - Fri, Aug 28
British Airways Logo
6:45 pm - 12:55 pm
PHL
-
BHD
13h 10m
1 stop
British Airways Logo
8:10 pm - 4:40 pm
BHD
-
PHL
25h 30m
1 stop
$840British Airways
Tue, Apr 28 - Sat, May 9
British Airways Logo
6:40 pm - 10:45 am
PHL
-
BHD
11h 05m
1 stop
British Airways Logo
7:05 am - 4:40 pm
BHD
-
PHL
14h 35m
1 stop
$843British Airways
Booking Insights

KAYAK's insights & trends for Philadelphia to Belfast flights

Get data-powered insights and trends into flights from Philadelphia to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Philadelphia to Belfast?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Philadelphia to Belfast were found on British Airways ($788) and American Airlines ($819).

Find deals

Good to know

Cheapest flight$274
Flight from Philadelphia to Belfast City Airport

When to book flights from Philadelphia to Belfast

Are your dates flexible? Find out the best times to travel from Philadelphia to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Belfast

  • What is the cheapest flight from Philadelphia to Belfast?

    In the last 3 days, the lowest price for a flight from Philadelphia to Belfast was $274 for a one-way ticket and $788 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Belfast?

    Yes, you’ll need a passport to travel to Belfast from Philadelphia.

  • Which aircraft models fly most regularly from Philadelphia to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Belfast?

    oneworld is the only airline alliance operating flights between Philadelphia and Belfast.

  • How does KAYAK find such low prices on flights from Philadelphia to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Philadelphia to Belfast

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Belfast? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7794 reviews
6.9Boarding
6.8Comfort
6.4Food
6.4Entertainment
7.6Crew
Airline reviews

Very please with the seating that the Kayak staff booked for us!

10.0 ExcellentAimee, Mar 2026
ATL - LHR
Read more British Airways reviews

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Everything you need to know for your flight from Philadelphia to Belfast

Information on your arrival and departure airports

Philadelphia (PHL)