$328 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 1/19. 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
$593
Overall average: $628
Scandinavian Airlines
Sat 1/31Tue 2/10
PHL - FRA • 2 stops
Cheapest non-stop
$808
Typical prices: $820-$954
Lufthansa
Sun 3/8Sun 3/22
PHL - FRA • Non-stop
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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

Sat, Jan 31 - Tue, Feb 10
Scandinavian Airlines Logo
2:30 pm - 9:50 am
PHL
-
FRA
37h 20m2 stops
Scandinavian Airlines Logo
10:30 am - 9:16 pm
FRA
-
PHL
16h 46m2 stops
$593Scandinavian Airlines
Thu, Jan 15 - Tue, Feb 3
Scandinavian Airlines Logo
12:11 pm - 9:50 am
PHL
-
FRA
39h 39m2 stops
Scandinavian Airlines Logo
10:30 am - 9:16 pm
FRA
-
PHL
16h 46m2 stops
$596Scandinavian Airlines
Sun, Jan 18 - Sun, Jan 25
Scandinavian Airlines Logo
6:02 am - 9:50 am
PHL
-
FRA
21h 48m2 stops
Scandinavian Airlines Logo
3:15 pm - 10:50 pm
FRA
-
PHL
37h 35m2 stops
$619Scandinavian Airlines
Thu, Jan 22 - Thu, Jan 29
Scandinavian Airlines Logo
12:16 pm - 9:50 am
PHL
-
FRA
39h 34m2 stops
Scandinavian Airlines Logo
3:15 pm - 10:50 pm
FRA
-
PHL
37h 35m2 stops
$620Scandinavian Airlines
Mon, Feb 2 - Tue, Feb 10
Scandinavian Airlines Logo
12:16 pm - 9:50 am
PHL
-
FRA
39h 34m2 stops
Scandinavian Airlines Logo
10:30 am - 9:16 pm
FRA
-
PHL
16h 46m2 stops
$623Scandinavian Airlines
Tue, Jan 13 - Sat, Jan 31
Scandinavian Airlines Logo
11:30 am - 9:50 am
PHL
-
FRA
16h 20m2 stops
Scandinavian Airlines Logo
8:30 pm - 9:16 pm
FRA
-
PHL
30h 46m2 stops
$626Scandinavian Airlines
Thu, Jan 29 - Tue, Feb 10
Scandinavian Airlines Logo
12:16 pm - 9:50 am
PHL
-
FRA
39h 34m2 stops
Scandinavian Airlines Logo
10:30 am - 9:16 pm
FRA
-
PHL
16h 46m2 stops
$627Scandinavian Airlines
Sun, Feb 1 - Mon, Feb 9
Scandinavian Airlines Logo
6:02 am - 9:50 am
PHL
-
FRA
21h 48m2 stops
Scandinavian Airlines Logo
10:30 am - 9:16 pm
FRA
-
PHL
16h 46m2 stops
$645Scandinavian Airlines
Tue, Feb 24 - Tue, Mar 3
Scandinavian Airlines Logo
6:00 am - 2:30 pm
PHL
-
FRA
26h 30m2 stops
Scandinavian Airlines Logo
10:30 am - 9:13 pm
FRA
-
PHL
16h 43m2 stops
$648Scandinavian Airlines
Tue, Feb 3 - Fri, Feb 6
Scandinavian Airlines Logo
6:02 am - 9:50 am
PHL
-
FRA
21h 48m2 stops
Scandinavian Airlines Logo
3:15 pm - 12:21 am
FRA
-
PHL
39h 06m2 stops
$657Scandinavian Airlines
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$359
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 3% increase in price.
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 50m.

  • How many flights are there between Philadelphia and Heidelberg?

    3 direct flights run between Philadelphia and Heidelberg on a daily basis. On average, there are about 24 departures each week.

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

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

  • 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 $464. British Airways offered a round-trip connection from $557 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 29 reviews
7.9Boarding
6.4Entertainment
8.3Crew
6.1Food
6.9Comfort
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.

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.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Flight was delayed and missed my connection Lufthansa didn’t respond.

A little bit more leg room in premium economy. I am 6’4”.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

The flight was canceled 3 hours after original take off time

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

The flight was okay however, for whatever reason they were not able to check me in for all 3 flights that I had booked through them creating a big problem when I landed in Toronto, in addition my luggage never made it to Toronto as well. So overall experience was not good

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

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

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