$399 Find Cheap Flights from Belgium to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 1/10. 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 Philadelphia

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

Cheapest round-trip
$567
Overall average: $648
Aer Lingus
Sun 11/23Mon 12/8
BRU - PHL • 1 stop
Cheapest one-way
$399
Multiple Airlines
Sat 1/10
CRL - PHL • 3 stops
When to travel
January
Cheapest • 18% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belgium to Philadelphia

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

Sun, Nov 23 - Mon, Dec 8
Aer Lingus Logo
10:15 am - 4:00 pmBRU-PHL
11h 45m1 stop
Aer Lingus Logo
5:30 pm - 6:15 pmPHL-BRU
18h 45m1 stop
$567Aer Lingus
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Thu, Nov 27 - Wed, Dec 10
Air Canada Logo
10:00 am - 2:47 pmBRU-PHL
10h 47m1 stop
Air Canada Logo
3:30 pm - 1:35 pmPHL-BRU
16h 05m2 stops
$584Air Canada
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Tue, Dec 16 - Wed, Dec 31
United Airlines Logo
9:00 am - 4:05 pmBRU-PHL
13h 05m1 stop
United Airlines Logo
8:27 am - 1:15 pmPHL-BRU
22h 48m2 stops
$594United Airlines
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Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
7:00 am - 5:05 pmBRU-PHL
15h 05m1 stop
United Airlines Logo
3:30 pm - 8:00 pmPHL-BRU
22h 30m2 stops
$595United Airlines
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Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
10:30 am - 5:05 pmBRU-PHL
11h 35m1 stop
United Airlines Logo
3:30 pm - 1:15 pmPHL-BRU
15h 45m2 stops
$596United Airlines
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Tue, Dec 16 - Tue, Dec 30
United Airlines Logo
9:00 am - 4:05 pmBRU-PHL
13h 05m1 stop
United Airlines Logo
2:50 pm - 1:15 pmPHL-BRU
16h 25m2 stops
$599United Airlines
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Tue, Dec 16 - Tue, Dec 30
United Airlines Logo
7:00 am - 5:39 pmBRU-PHL
16h 39m2 stops
United Airlines Logo
2:50 pm - 1:15 pmPHL-BRU
16h 25m2 stops
$600United Airlines
Find Deal
Thu, Mar 26 - Mon, Mar 30
Air Canada Logo
2:25 pm - 3:49 pmBRU-PHL
30h 24m2 stops
Air Canada Logo
3:30 pm - 1:15 pmPHL-BRU
15h 45m2 stops
$601Air Canada
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Thu, Nov 27 - Wed, Dec 10
Multiple Airlines Logo
10:00 am - 2:47 pmBRU-PHL
10h 47m1 stop
Multiple Airlines Logo
3:30 pm - 7:50 amPHL-BRU
10h 20m1 stop
$602Multiple Airlines
Find Deal
Tue, Dec 16 - Wed, Dec 31
United Airlines Logo
7:00 am - 5:39 pmBRU-PHL
16h 39m2 stops
United Airlines Logo
3:30 pm - 1:15 pmPHL-BRU
15h 45m2 stops
$604United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Philadelphia

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

What is the cheapest month to fly to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Philadelphia is January, where tickets cost $509 on average for one-way flights. On the other hand, the most expensive months are August and April, where the average cost of tickets from Belgium is $762 and $719 respectively. For return trips, the best month to travel is January with an average price of $509.

How far in advance should I book a flight to Philadelphia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 days before departure.

Good to know

Low seasonJanuary
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 15% increase in price.

FAQs - booking Philadelphia flights

  • How far is Philadelphia Airport from central Philadelphia?

    There are 7 miles between Philadelphia city center and Philadelphia Airport.

  • What is the name of Philadelphia’s airport?

    When flying to Philadelphia, you'll arrive at Philadelphia Airport (PHL). The airport is also known as Philadelphia or Philadelphia Intl.

  • What is the cheapest day to fly to Philadelphia?

    Based on KAYAK data, the cheapest day to fly to Philadelphia is Saturday where tickets can be as cheap as $572. On the other hand, the most expensive day to fly is Monday, where prices are $978 on average.

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

    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 to Philadelphia.

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

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

    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 Philadelphia with an airline and back with another airline.

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

    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 Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Philadelphia?

    The cheapest time of day to fly to Philadelphia is generally in the morning, when flights cost $625 on average. The most expensive time of day to fly to Philadelphia is generally in the morning, which is peak travel time and where the average cost of a ticket is $625.

  • How many direct flights to Philadelphia are there each week?

    Each week there are around 3,413 direct flights from within Belgium to Philadelphia. The most common day for departures is Monday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Philadelphia

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Philadelphia flight deals.

Reviews of the top 3 airlines serving from Belgium to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to Philadelphia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Philadelphia? 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.
7.4
United AirlinesOverall score based on 9015 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

8.0 ExcellentSemra, Nov 2025GVA - IAD
Read more United Airlines reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

This flight leg was fantastic - super comfortable and a great selection of things to watch on the TV. Staff were excellent, really above and beyond.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

Small outdated plane from Philly to Des Moines with very uncomfortable seats. The plane was old, so we had mechanical issues that delayed us for 3 hours with very little communication. It was a very unpleasant experience and I will try to never fly AA again.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

They don't make it easy or promote their food options. Dirty plane. Delayed.

International baggage recheck process in Philadelphia was a disaster. Waited 1 hour and 45 minutes to receive our bags. Waited 15 minutes to recheck bags, flight notification boards were blank so we asked an AA representative for our connecting gate and we were directed to the wrong terminal and gate. Our connection window was over 3 hours and we made our flight by 5 minutes. We pulled away from the gate and sat on the runway for 1 1/2 hours. 1 of our 4 bags didn’t make it to Phoenix. The mobile app for lost baggage didn’t work, the AA rep had to manually fix.

I miss my flight and they could not rebook me that day because the other flight was full, and for the next day I had to pay a whole new fee again which I think is unprofessional

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood Crest
Newark
North Wildwood
Vineland
West Chester
Essington
Elkton
Pottstown
Willow Grove
Kennett Square
Somers Point
Voorhees
Middletown
Wyomissing
Glen Mills
Phoenixville
Bird in Hand
Blackwood
Millville
Strasburg

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia