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$298+ Cheap flights from Philadelphia (PHL) to Belfast

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BHD
Apr 25 — May 21
Sat 4/25
Sat 5/2
1 adult, Economy
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Cheap flight deals from Philadelphia to Belfast

Cheapest flights from Philadelphia to Belfast
Explore the most affordable flight options available from Philadelphia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2026.

This BusinessClass deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:53 pm
PHL
-
BHD
2 stops13h 57m
British Airways
Wed 9/910:05 am
BHD
-
PHL
1 stop11h 35m
British Airways
Deal found 3/21$831
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:45 pm
PHL
-
BHD
1 stop13h 10m
British Airways
Mon 8/316:30 pm
BHD
-
PHL
1 stop27h 10m
British Airways
Deal found 3/24$833
This British Airways deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:45 pm
PHL
-
BHD
1 stop10h 45m
British Airways
Thu 9/39:35 am
BHD
-
PHL
1 stop12h 05m
British Airways
Deal found 3/24$838
This Iberia deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:50 pm
PHL
-
BHD
2 stops13h 10m
Multiple Airlines
Mon 10/127:35 pm
BHD
-
PHL
2 stops27h 15m
Multiple Airlines
Deal found 3/21$847
This Iberia deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:50 pm
PHL
-
BHD
2 stops14h 05m
Multiple Airlines
Mon 10/267:25 pm
BHD
-
PHL
2 stops26h 15m
Multiple Airlines
Deal found 3/22$852
This Justfly.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:40 pm
PHL
-
BHD
2 stops13h 50m
British Airways
Tue 9/16:30 am
BHD
-
PHL
1 stop15h 10m
British Airways
Deal found 3/24$857
This BusinessClass deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:42 pm
PHL
-
BHD
2 stops14h 18m
British Airways
Mon 4/277:35 pm
BHD
-
PHL
1 stop21h 35m
British Airways
Deal found 3/24$861
This British Airways deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:45 pm
PHL
-
BHD
1 stop11h 00m
British Airways
Fri 9/116:30 am
BHD
-
PHL
1 stop15h 10m
British Airways
Deal found 3/21$868
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:38 pm
PHL
-
BHD
2 stops18h 17m
Delta
Thu 9/109:50 am
BHD
-
PHL
2 stops19h 37m
Delta
Deal found 3/21$871
This American Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:20 pm
PHL
-
BHD
1 stop12h 20m
American Airlines
Wed 9/910:05 am
BHD
-
PHL
2 stops16h 05m
American Airlines
Deal found 3/21$876
This Mytrip deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:30 pm
PHL
-
BFS
3 stops18h 45m
Multiple Airlines
Mon 4/276:10 am
BFS
-
PHL
3 stops32h 39m
Multiple Airlines
Deal found 3/24$1,025
This Mytrip deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:40 pm
PHL
-
BFS
2 stops20h 50m
Multiple Airlines
Sun 4/269:55 am
BFS
-
PHL
3 stops28h 54m
Multiple Airlines
Deal found 3/21$1,110

Find flight deals from Philadelphia to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 26, 2026.

Round-trip from

$831
(BusinessClass)

One-way from

$298
(oojo)

Popular in

June

Cheapest in

March

Average price

$607
From Philadelphia to Belfast
Search Deals
One-way flight from Philadelphia to Belfast
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($308 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Belfast 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, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2026.
Use the filters below to find and compare flights from Philadelphia to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 8/18

6:45 pm-10:45 am

1 stop11h 00m

Belfast City

Thu 9/3

9:35 am-4:40 pm

1 stop12h 05m

$838

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 8/17

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Thu 9/3

9:35 am-4:40 pm

1 stop12h 05m

$838

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 8/17

6:45 pm-12:55 pm

1 stop13h 10m

Belfast City

Tue 9/1

9:40 am-4:40 pm

1 stop12h 00m

$838

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 9/1

6:45 pm-10:45 am

1 stop11h 00m

Belfast City

Thu 9/10

8:35 pm-4:40 pm

1 stop25h 05m

$868

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 9/1

6:00 am-9:20 am

2 stops22h 20m

Belfast City

Tue 9/8

9:50 am-10:37 pm

2 stops17h 47m

$871

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sun 8/30

6:45 pm-10:30 am

1 stop10h 45m

Belfast City

Fri 9/11

6:30 am-4:40 pm

1 stop15h 10m

$892

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Thu 8/20

6:45 pm-3:30 pm

1 stop15h 45m

Belfast City

Tue 9/1

9:40 am-4:40 pm

1 stop12h 00m

$899

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 4/21

3:25 pm-3:20 pm

2 stops18h 55m

Belfast City

Mon 4/27

7:35 pm-1:55 pm

2 stops23h 20m

$917

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Wed 9/2

5:38 pm-4:55 pm

2 stops18h 17m

Belfast City

Sun 9/6

5:30 pm-6:29 pm

2 stops29h 59m

$921

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Thu 9/3

6:00 am-9:20 am

2 stops22h 20m

Belfast City

Thu 9/10

9:50 am-12:27 am

2 stops19h 37m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Philadelphia to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How much does it cost to fly round-trip from Philadelphia to Belfast?

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated March 26, 2026.
Peruse reviews from past customers who have flown with British Airways from Philadelphia to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,821 reviews

Boarding

6.9

Comfort

6.8

Overall

6.7

Crew

7.6

Food

6.4

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance
British Airways
6.7
Okay
7,821 reviews
British Airways
6.7
Okay
7,821 reviews

Boarding

6.9

Comfort

6.8

Overall

6.7

Crew

7.6

Food

6.4

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Belfast?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Belfast. On average, Philadelphia has 0 outbound flights to Belfast per day from 1 airline. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • How long is the flight from Philadelphia to Belfast?

    For as low as $831, British Airways can have you in Belfast from Philadelphia in 13h 57m. Airlines will cover a distance of 3260 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Philadelphia to Belfast round-trip?

    Cheapflights users have booked flights from Philadelphia to Belfast round-trip from $577. This flight start at 29% lower than the current average price 3 months from now.

  • Can I find deals for flights from Philadelphia to Belfast that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Belfast.

  • Can I find deals for business class flights from Philadelphia to Belfast?

    Yes. Cheapflights offers flight deals from Philadelphia to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Philadelphia to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Philadelphia to Belfast

Discover the top airline that operate flights from Philadelphia to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$979FlexibilityNo cancel feeOn-time70%

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