PHL - BFS

$1,133 Find Cheap Flights from Philadelphia to Belfast Intl Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Belfast Intl departing on 5/15. 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 Intl Airport

 
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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$1,133
Multiple Airlines
Fri 5/15Fri 5/22
PHL - BFS • 3 stops
Cheapest one-way
Multiple Airlines
Sat 1/31
PHL - BFS • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Belfast Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Belfast Intl (PHL-BFS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Belfast Intl 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 Intl

Fri, May 15 - Fri, May 22
Multiple Airlines Logo
6:00 am - 9:15 pm
PHL
-
BFS
34h 15m
3 stops
Multiple Airlines Logo
6:15 am - 6:55 pm
BFS
-
PHL
41h 40m
3 stops
$1,133Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
6:00 am - 9:15 pm
PHL
-
BFS
34h 15m
3 stops
Multiple Airlines Logo
8:15 pm - 2:48 pm
BFS
-
PHL
23h 33m
2 stops
$1,139Multiple Airlines
Sat, Jul 4 - Fri, Jul 10
Multiple Airlines Logo
7:00 am - 9:35 am
PHL
-
BFS
21h 35m
2 stops
Multiple Airlines Logo
9:10 pm - 9:34 pm
BFS
-
PHL
29h 24m
2 stops
$1,142Multiple Airlines
Sat, May 16 - Fri, May 22
Multiple Airlines Logo
6:00 am - 8:40 pm
PHL
-
BFS
33h 40m
3 stops
Multiple Airlines Logo
6:15 am - 6:55 pm
BFS
-
PHL
41h 40m
3 stops
$1,192Multiple Airlines
Sat, May 16 - Sat, May 23
Multiple Airlines Logo
6:00 am - 8:40 pm
PHL
-
BFS
33h 40m
3 stops
Multiple Airlines Logo
6:20 am - 9:33 pm
BFS
-
PHL
20h 13m
2 stops
$1,198Multiple Airlines
Sat, May 16 - Sat, May 23
Multiple Airlines Logo
6:00 am - 8:40 pm
PHL
-
BFS
33h 40m
3 stops
Multiple Airlines Logo
9:30 am - 6:55 pm
BFS
-
PHL
38h 25m
3 stops
$1,223Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
5:40 pm - 8:45 pm
PHL
-
BFS
22h 05m
2 stops
Multiple Airlines Logo
9:10 pm - 3:38 pm
BFS
-
PHL
23h 28m
2 stops
$1,234Multiple Airlines
Sat, Jul 4 - Fri, Jul 10
Multiple Airlines Logo
4:20 pm - 9:35 am
PHL
-
BFS
12h 15m
2 stops
Multiple Airlines Logo
12:45 pm - 6:55 pm
BFS
-
PHL
35h 10m
3 stops
$1,240Multiple Airlines
Sat, May 16 - Fri, May 22
Multiple Airlines Logo
8:25 pm - 8:50 pm
PHL
-
BFS
19h 25m
2 stops
Multiple Airlines Logo
9:10 pm - 2:48 pm
BFS
-
PHL
22h 38m
2 stops
$1,273Multiple Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
6:40 pm - 10:35 pm
PHL
-
BFS
23h 55m
2 stops
Multiple Airlines Logo
12:10 pm - 5:00 pm
BFS
-
PHL
32h 50m
2 stops
$1,288Multiple Airlines
Booking Insights

Good to know

Low seasonMarch
Cheapest flight$1,133
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Philadelphia to Belfast Intl Airport

When to book flights from Philadelphia to Belfast Intl

Are your dates flexible? Find out the best times to travel from Philadelphia to Belfast Intl 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 Philadelphia to Belfast Intl Airport flights

  • What is the cheapest flight from Philadelphia to Belfast Intl Airport?

    In the last 3 days, the lowest price for a flight from Philadelphia to Belfast Intl Airport was $1,133 for a round-trip ticket.

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

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

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

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

  • Which airline alliances offer flights from Philadelphia to Belfast Intl Airport?

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

  • Which is the best airline for flights from Philadelphia to Belfast, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Belfast are American Airlines and British Airways. With an average price for the route of $752 and an overall rating of 7.2, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $915 and an overall rating of 6.7.

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

    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 Intl Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport 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 Intl Airport?

    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 Intl Airport with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and BFS can sometimes prove cheaper using this method.

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

    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 Intl Airport 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 airlines flying from Philadelphia to Belfast Intl

 
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 Intl? 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.
7.2
American AirlinesOverall score based on 11213 reviews
6.9Entertainment
6.4Food
7.2Comfort
8.0Crew
7.5Boarding
Airline reviews

My flight to London from Philadelphia was cancelled due to weather.

6.0 GoodRicciyah, Jan 2026
PHL - LHR
Read more American Airlines reviews

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

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.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

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

Information on your arrival and departure airports