$651 Find Cheap Flights from Luxembourg to Philadelphia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 4/9. 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
$651
Typical prices: $599-$764
United Airlines
Thu 4/9Tue 6/2
LUX - PHL • 1 stop
When to travel
April
Cheapest • 15% price drop
November
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 Luxembourg to Philadelphia

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

Thu, Apr 9 - Tue, Jun 2
United Airlines Logo
8:20 am - 4:05 pm
LUX
-
PHL
13h 45m
1 stop
United Airlines Logo
10:30 am - 4:10 pm
PHL
-
LUX
23h 40m
2 stops
$651United Airlines
Sun, Mar 15 - Sun, Mar 22
Lufthansa Logo
8:05 am - 5:05 pm
LUX
-
PHL
14h 00m
1 stop
Lufthansa Logo
6:40 pm - 9:55 am
PHL
-
LUX
10h 15m
1 stop
$653Lufthansa
Sun, Mar 15 - Sun, Mar 22
Multiple Airlines Logo
2:45 pm - 5:00 pm
LUX
-
PHL
31h 15m
2 stops
Multiple Airlines Logo
6:30 pm - 11:45 am
PHL
-
LUX
12h 15m
1 stop
$656Multiple Airlines
Thu, Apr 9 - Thu, May 28
United Airlines Logo
8:20 am - 10:28 am
LUX
-
PHL
32h 08m
2 stops
United Airlines Logo
10:30 am - 4:10 pm
PHL
-
LUX
23h 40m
2 stops
$657United Airlines
Tue, Jul 7 - Sun, Aug 2
American Airlines Logo
11:30 am - 4:40 pm
LUX
-
PHL
11h 10m
1 stop
American Airlines Logo
12:50 pm - 4:00 pm
PHL
-
LUX
21h 10m
2 stops
$661American Airlines
Sun, Apr 5 - Mon, Jun 1
American Airlines Logo
3:30 pm - 12:05 pm
LUX
-
PHL
26h 35m
1 stop
American Airlines Logo
6:45 pm - 10:35 am
PHL
-
LUX
9h 50m
1 stop
$662American Airlines
Wed, Apr 8 - Sun, May 31
Delta Logo
6:00 am - 9:23 pm
LUX
-
PHL
21h 23m
2 stops
Delta Logo
6:00 am - 9:55 am
PHL
-
LUX
21h 55m
2 stops
$663Delta
Thu, Jul 9 - Sat, Aug 1
British Airways Logo
11:45 am - 4:40 pm
LUX
-
PHL
10h 55m
1 stop
British Airways Logo
6:45 pm - 2:30 pm
PHL
-
LUX
13h 45m
1 stop
$664British Airways
Sat, Jul 4 - Wed, Jul 29
American Airlines Logo
10:55 am - 11:26 am
LUX
-
PHL
30h 31m
2 stops
American Airlines Logo
12:04 pm - 10:45 am
PHL
-
LUX
16h 41m
2 stops
$666American Airlines
Fri, Apr 10 - Tue, Jun 2
American Airlines Logo
9:15 pm - 4:44 pm
LUX
-
PHL
25h 29m
2 stops
American Airlines Logo
5:30 pm - 7:45 pm
PHL
-
LUX
20h 15m
2 stops
$668American Airlines
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 April, where tickets cost $579 on average for one-way flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Luxembourg is $799 and $778 respectively. For return trips, the best month to travel is April with an average price of $579.

Good to know

Low seasonDecember
Cheapest flight$651
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Luxembourg to Philadelphia

FAQs - booking Philadelphia flights

  • How far is Philadelphia Airport from central Philadelphia?

    Philadelphia Airport is 7 miles from the center of Philadelphia.

  • 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.

  • 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.

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

    Each week there are around 3,137 direct flights from within Luxembourg to Philadelphia. The most common day for departures is Sunday, 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 airline flying from Luxembourg 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 Luxembourg 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.
6.7
British AirwaysOverall score based on 7749 reviews
7.6Crew
6.9Boarding
6.4Food
6.4Entertainment
6.8Comfort
Airline reviews

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

4.0 OkayAnonymous, Feb 2026
DFW - RSW
Read more British Airways reviews

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

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
Essington
West Chester
Elkton
Pottstown
Willow Grove
Kennett Square
Voorhees
Somers Point
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