Cheap flights from Philadelphia to Belfast

Compare Philadelphia to Belfast flight deals

Find the cheapest month or even day of the year to fly to Belfast

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Flight deals from Philadelphia to Belfast

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia to Belfast? If you want to travel next month, round-trip fares start from $750. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Philadelphia to Belfast

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Belfast flights are currently cheapest in August.

Alternative Philadelphia to Belfast routes

Looking for the cheapest, fastest or easiest route from Philadelphia to Belfast? You could fly into the following airports instead.

Philadelphia to Belfast: Flight information

The things to know before you go.
Cheapest flight found$750
Cheapest month to flyAugust

Finding cheap flights from Philadelphia to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a round-trip flight from Philadelphia to Belfast is $750. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Philadelphia to Belfast. But we found flights with one or more stops from $750.
There are no flights flying from Philadelphia to Belfast, as of July 2026.
The cheapest month to fly from Philadelphia to Belfast is usually August.
If you're flying from Philadelphia, the cheapest airport near Belfast is Belfast International – which is 19.7 km away from the center of Belfast. We've found flights to this airport from $750.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Belfast on Wednesday, August 26, 2026.
No airlines currently offer direct flights between Philadelphia and Belfast. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Belfast but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 14°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
The cheapest airline that flies to Belfast is jetBlue.

Flying from Philadelphia to Belfast: what you need to know

  • Philadelphia International Airport (PHL) is Philadelphia's main airport. Explore your options for booking a flight from Philadelphia to Belfast taking off from here.

  • Hop off your plane in Belfast at Belfast International Airport (BFS) or Belfast City Airport (BHD).

  • Belfast is five hours ahead of Philadelphia and observes the UTC+0 timezone.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your Philadelphia to Belfast flight.

  • Flying during a peak month such as August? School holidays and other high seasons can lead to longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before a domestic departure.

How to find the cheapest flights from Philadelphia to Belfast

  • To find cheap Philadelphia to Belfast flights, book early. Airlines usually offer the most competitive fares when tickets are first released.

  • Getting cheap plane tickets from Philadelphia to Belfast is easy if you can be flexible with your dates. Use the 'Whole month' function to see the lowest fares across the month and score a fantastic deal.

  • You don't need to search every day to see if prices have dropped when you create a Price Alert. We'll let you know when a better deal is available on cheap flights from Philadelphia to Belfast.

  • Lock in a cheap Philadelphia to Belfast flight with the help of our filters. Select your preferred times, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Philadelphia

Philadelphia International Airport (PHL)

  • Stopovers are the ideal opportunity to take a break from traveling — and perhaps even tour another city. When searching for Philadelphia to Belfast flights leaving from Philadelphia International Airport, uncheck the 'Direct flights only' box to see where you can visit along the way. Top options include:

    • London Heathrow Airport (LHR)

    • Amsterdam Schiphol Airport (AMS)

    • Frankfurt am Main Airport (FRA)

  • PHL is around 11 kilometers from central Philadelphia. If you're catching a cab, ride-sharing or driving from the center, it'll take you 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 30 minutes.

  • Want a relaxed start to your break? Stay near Philadelphia International Airport. Whether you're boarding an early flight from Philadelphia to Belfast or want to avoid feeling rushed, these hotels are just the thing:

  • 77% of flights leaving from Philadelphia International Airport arrive at their destination on time.

  • PHL is located at 8500 Essington Ave.

Arriving in Belfast

Belfast International Airport (BFS)

  • The distance from Belfast International Airport (BFS) to central Belfast is roughly 19 kilometers. It'll take you about 25 minutes to reach the center driving.

  • It usually takes 45 minutes to get there when traveling by public transport.

  • Reserve a hotel near BFS if you're coming in on a late flight from Philadelphia to Belfast. Select one of these options and avoid the hassle of a long transfer:

  • Travel at your own speed with a Belfast International Airport rental car. Pick up your wheels from Budget, Drivalia or Dollar and experience more of Belfast and beyond.

  • Reserving your vehicle from Belfast International Airport around three weeks in advance can help you get the best possible rate.

Belfast City Airport (BHD)

  • Belfast City Airport (BHD) is about 5 kilometers from central Belfast. Following your flight from Philadelphia to Belfast, it'll take you approximately 15 minutes to get to the heart of the city in a cab or ride-share.

  • If you're catching public transport, it'll take around 25 minutes.

  • Place the 'Do not disturb' sign on your door and relax at a hotel near BHD. Here are a few options where you can kick back after your flight from Philadelphia to Belfast:

  • Budget, Sixt and Alamo make collecting a Belfast City Airport rental car simple. These providers are located in or around the terminal and will have you ready to go in a flash.

  • Get the pick of the lot. Securing your ride from BHD two weeks ahead of time often means lower prices and a greater selection of vehicles.

Best time to go to Belfast

  • September is the most popular month for flights from Philadelphia to Belfast. To steer clear of the crowds, go to Belfast in February.

  • Lock in a Philadelphia to Belfast ticket departing in July if you're eager to visit the city during its warmest month. Expect temperatures in Belfast to range from 9ºC (48ºF) to 19ºC (66ºF).

  • January has average temperatures of between 1ºC (34ºF) and 8ºC (46ºF). Search for cheap flights from Philadelphia to Belfast around that time if you like cooler conditions.

More about Belfast

Explore more of the United Kingdom

  • Belfast has loads to offer, but there are so many other corners of the United Kingdom waiting to be discovered. About 274 kilometers southeast of Belfast, a visit to Manchester will keep you busy. Check out popular attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Science and Industry Museum.

  • If there's time to check out another major destination in the United Kingdom, consider Birmingham, about 354 kilometers southeast of Belfast. Birmingham Museum & Art Gallery, Birmingham Hippodrome and Bournville Experience are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.