$385 Find Cheap Flights from Philadelphia to Heidelberg

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Heidelberg departing on 8/19. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$637
Typical prices: $782-$1,046
Multiple Airlines
Tue 8/18Tue 9/1
PHL - FRA • 1 stop
Cheapest non-stop
$968
Typical prices: $1,023-$1,853
Lufthansa
Sun 5/3Tue 5/12
PHL - FRA • Non-stop
Arrival airport
You can't fly directly to Heidelberg. It is served by Frankfurt am Main (FRA), located 44.6 miles from Heidelberg.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Philadelphia to Heidelberg (PHL-FRA)

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

Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$637Multiple Airlines
Mon, May 18 - Sun, May 24
Multiple Airlines Logo
6:00 am - 5:45 am
PHL
-
FRA
17h 45m
1 stop
Multiple Airlines Logo
12:30 pm - 6:50 pm
FRA
-
PHL
12h 20m
1 stop
$693Multiple Airlines
Tue, Aug 11 - Tue, Aug 25
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$708Multiple Airlines
Wed, Aug 19 - Wed, Sep 2
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$731Multiple Airlines
Thu, Aug 20 - Thu, Sep 3
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$740Multiple Airlines
Mon, May 18 - Tue, Jun 2
Multiple Airlines Logo
6:00 am - 5:45 am
PHL
-
FRA
17h 45m
1 stop
Multiple Airlines Logo
12:30 pm - 9:20 pm
FRA
-
PHL
14h 50m
1 stop
$741Multiple Airlines
Fri, Aug 21 - Tue, Sep 8
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$749Multiple Airlines
Thu, Aug 20 - Sun, Aug 23
Scandinavian Airlines Logo
2:27 pm - 2:35 pm
PHL
-
FRA
18h 08m
2 stops
Scandinavian Airlines Logo
3:20 pm - 1:01 am
FRA
-
PHL
39h 41m
2 stops
$754Scandinavian Airlines
Tue, Aug 18 - Tue, Sep 1
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 7:49 pm
FRA
-
PHL
13h 19m
1 stop
$762Multiple Airlines
Wed, Jul 15 - Tue, Sep 15
Multiple Airlines Logo
9:12 am - 5:45 am
PHL
-
FRA
14h 33m
1 stop
Multiple Airlines Logo
12:30 pm - 9:50 pm
FRA
-
PHL
15h 20m
1 stop
$764Multiple Airlines
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$385
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Philadelphia to Frankfurt Airport

When to book flights from Philadelphia to Heidelberg

Are your dates flexible? Find out the best times to travel from Philadelphia to Heidelberg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Philadelphia to Heidelberg

  • Which airports will I be using when flying from Philadelphia to Heidelberg?

    When flying out of Philadelphia you’ll be using Philadelphia. Heidelberg does not have its own airport so you’ll be flying into nearby Frankfurt am Main airport, which is 44.6 mi away.

  • How long does a flight from Philadelphia to Heidelberg take?

    Direct flights cover the 3,935 miles separating Philadelphia and Heidelberg in about 7h 55m.

  • How many flights are there between Philadelphia and Heidelberg?

    4 direct flights run between Philadelphia and Heidelberg on a daily basis. On average, there are about 30 departures each week.

  • What’s the cheapest day of the week to fly between Philadelphia and Heidelberg?

    Consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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

    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 Heidelberg.

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

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

    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 Heidelberg with an airline and back to Philadelphia with another airline.

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

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

  • Which airlines provide the cheapest flights from Philadelphia to Heidelberg?

    In the last 72 hours, the cheapest one-way ticket between Philadelphia and Heidelberg found on KAYAK was with United Airlines for $411. British Airways offered a round-trip connection from $388 and Scandinavian Airlines from $593.

Top tips for finding cheap flights from Philadelphia to Heidelberg

  • There is no airport in Heidelberg. Instead, you’ll be flying into Frankfurt Airport when flying between Philadelphia and Heidelberg.
  • The cheapest flight from Philadelphia to Heidelberg was found 60 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Philadelphia to Heidelberg

 
Need help choosing which airline to fly with from Philadelphia to Heidelberg? 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.
7.8
Discover AirlinesOverall score based on 31 reviews
6.1Food
6.9Comfort
6.3Entertainment
8.2Crew
7.8Boarding
Airline reviews

I’ve never heard of discover airlines but will definitely be on the lookout for future flights. Everything about the trip was perfect. The staff were exceedingly friendly and helpful. The only critique; there was a delay and gate change and this fact was NOT well published! My eTicket was NEVER updated with the new flight details. We ran the whole way from our connecting flight only to find that our flight was delayed. Very frustrating. Additionally, there was NO announcement regarding the root cause of the delay. The uncertainty about the cause of the delay contributes to the overall frustration. One other small matter onboard; one of the toilets was unavailable (or perhaps malfunctioning) and NO explanation was given nor was any workaround explained. It would have been less frustrating if they announced why the toilet was lock and explained the alternatives in detail. That way the foot traffic congestion could have been minimized.

10.0 ExcellentAnonymous, Oct 2025
FRA - PHL
Read more Discover Airlines reviews

I’ve never heard of discover airlines but will definitely be on the lookout for future flights. Everything about the trip was perfect. The staff were exceedingly friendly and helpful. The only critique; there was a delay and gate change and this fact was NOT well published! My eTicket was NEVER updated with the new flight details. We ran the whole way from our connecting flight only to find that our flight was delayed. Very frustrating. Additionally, there was NO announcement regarding the root cause of the delay. The uncertainty about the cause of the delay contributes to the overall frustration. One other small matter onboard; one of the toilets was unavailable (or perhaps malfunctioning) and NO explanation was given nor was any workaround explained. It would have been less frustrating if they announced why the toilet was lock and explained the alternatives in detail. That way the foot traffic congestion could have been minimized.

Basically a low cost airline, with very small seats, mediocre food and staff not particularly nice. Not a pleasant flight

Plane was old and small. Crew was not very friendly and didn’t check in much or offer water more than 2 times over a 8 hour flight.

We were on a full-service fare as part of a long-haul trip so it was disappointing to be on such a no-frills flight (no meals/hot drinks/entertainment) especially for a 3.5hr flight, at the start of a long trip. The crew however we’re lovely & friendly.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

They charged a fee for 1st bag checked. Others in same party were free.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Broke my luggage and I can't get a resolution yet.

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.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

You will pay for everything and feels like the airplane is old

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

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.

Everything you need to know for your flight from Philadelphia to Heidelberg

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