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Heidelberg

$321+ Cheap flights from Philadelphia (PHL) to Heidelberg, Germany

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — FRA
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Heidelberg are usually found in January or August, booked 60 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Philadelphia to Heidelberg

Cheapest flights from Philadelphia to Heidelberg
Explore the most affordable flight options available from Philadelphia to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 7, 2026.

This United Airlines deal was found by Cheapflights users on 2/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:37 pm
PHL
-
FRA
1 stop10h 33m
United Airlines
Mon 12/74:25 pm
FRA
-
PHL
2 stops32h 15m
United Airlines
Deal found 2/5$555
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:25 pm
PHL
-
FRA
1 stop17h 35m
Aer Lingus
Tue 4/1410:55 am
FRA
-
PHL
1 stop14h 00m
Aer Lingus
Deal found 2/5$677
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:25 pm
PHL
-
FRA
1 stop13h 05m
Multiple Airlines
Wed 5/67:00 am
FRA
-
PHL
1 stop17h 55m
Multiple Airlines
Deal found 2/3$722
This Gurufare deal was found by Cheapflights users on 2/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:00 pm
PHL
-
FRA
2 stops35h 50m
Scandinavian Airlines
Mon 3/308:30 pm
FRA
-
PHL
2 stops30h 53m
Scandinavian Airlines
Deal found 2/6$731
This FlightHub deal was found by Cheapflights users on 2/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:16 am
PHL
-
FRA
2 stops17h 34m
Scandinavian Airlines
Tue 4/148:30 pm
FRA
-
PHL
2 stops31h 42m
Scandinavian Airlines
Deal found 2/4$734
This Mytrip deal was found by Cheapflights users on 2/5. 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 5/58:25 pm
PHL
-
FRA
1 stop17h 35m
Multiple Airlines
Tue 5/127:00 am
FRA
-
PHL
1 stop17h 55m
Multiple Airlines
Deal found 2/5$755
This Mytrip deal was found by Cheapflights users on 2/5. 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 4/144:25 pm
PHL
-
FRA
2 stops21h 35m
Multiple Airlines
Tue 4/289:10 pm
FRA
-
PHL
2 stops24h 34m
Multiple Airlines
Deal found 2/5$761
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:25 pm
PHL
-
FRA
1 stop17h 35m
Multiple Airlines
Thu 5/710:35 am
FRA
-
PHL
1 stop14h 20m
Multiple Airlines
Deal found 2/3$763
This Expedia deal was found by Cheapflights users on 2/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:30 pm
PHL
-
FRA
1 stop10h 35m
Aer Lingus
Wed 4/810:55 am
FRA
-
PHL
1 stop14h 00m
Aer Lingus
Deal found 2/7$764
This Cheapflightsfares deal was found by Cheapflights users on 2/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:40 pm
PHL
-
FRA
Nonstop7h 55m
Lufthansa
Tue 5/121:15 pm
FRA
-
PHL
Nonstop8h 50m
Lufthansa
Deal found 2/5$766

Find flight deals from Philadelphia to Heidelberg

Keep the following information in mind while searching for Philadelphia to Heidelberg flight deals. Data was last updated February 7, 2026.

Round-trip from

$677
(Kiwi.com)

One-way from

$366
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$967
From Philadelphia to Heidelberg
Search Deals
One-way flight from Philadelphia to Heidelberg
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Heidelberg 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 February 7, 2026.
Use the filters below to find and compare flights from Philadelphia to Heidelberg that are best for you.

Fly from

Philadelphia

Fly to

Heidelberg

Route

Depart

Return

Price

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 4/21

7:45 pm-7:20 am

1 stop29h 35m

Frankfurt am Main

Fri 5/1

5:05 pm-9:48 am

1 stop22h 43m

$817

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Sat 4/18

4:25 pm-6:30 am

1 stop32h 05m

Frankfurt am Main

Thu 5/7

1:15 pm-4:05 pm

Nonstop8h 50m

$825

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 3/10

3:30 pm-7:25 am

1 stop10h 55m

Frankfurt am Main

Tue 3/24

9:45 am-5:14 pm

2 stops36h 29m

$860

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 3/24

3:30 pm-6:05 pm

2 stops21h 35m

Frankfurt am Main

Tue 3/31

5:05 pm-2:11 pm

2 stops27h 06m

$861

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 2/24

3:02 pm-12:05 pm

2 stops15h 03m

Frankfurt am Main

Tue 3/3

1:05 pm-10:36 pm

2 stops15h 31m

$894

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Sat 3/21

5:18 pm-7:50 am

2 stops33h 32m

Frankfurt am Main

Mon 3/30

10:40 am-12:57 am

1 stop20h 17m

$935

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Fri 3/20

9:41 am-7:50 am

1 stop17h 09m

Frankfurt am Main

Mon 3/30

9:45 am-7:49 pm

2 stops40h 04m

$948

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Fri 3/13

7:45 pm-7:10 am

1 stop30h 25m

Frankfurt am Main

Sun 3/22

1:00 pm-5:05 pm

Nonstop9h 05m

$982

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Sat 3/7

6:55 am-7:50 am

2 stops18h 55m

Frankfurt am Main

Sat 3/14

10:40 am-11:00 pm

1 stop17h 20m

$986

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Thu 3/12

6:40 pm-7:30 am

Nonstop7h 50m

Frankfurt am Main

Thu 3/19

1:00 pm-5:05 pm

Nonstop9h 05m

$993

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 21 results
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Best time to book a flight from Philadelphia to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg 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 Heidelberg

How far ahead should I book a flight from Philadelphia to Heidelberg?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Heidelberg. Price data was last updated on January 30, 2026.

The best time to book flights from Philadelphia to Heidelberg is 60 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to Heidelberg?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Heidelberg (average of $294). Flying from Philadelphia to Heidelberg in December is currently the most expensive (average of $591). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. 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 Heidelberg. Reviews last updated February 7, 2026.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Philadelphia to Heidelberg 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.
United Airlines
7.4
Good
9,246 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,246 reviews
United Airlines
7.4
Good
9,246 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,245 reviews
United Airlines
7.4
Good
9,246 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,445 reviews
United Airlines
7.4
Good
9,246 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,769 reviews
United Airlines
7.4
Good
9,246 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Heidelberg. 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 Heidelberg?

    Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to Heidelberg. You should not have trouble finding flights to Heidelberg from Philadelphia; the airport handles an average of 0 outbound flights to Heidelberg per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Philadelphia airport to Heidelberg. It is only a 7.0 mi journey to Philadelphia (PHL) from Philadelphia’s city center.

  • How long is the flight from Philadelphia to Heidelberg?

    Aer Lingus and Scandinavian Airlines can get you from Philadelphia to Heidelberg in just under 17h 35m. Your travel time can differ by up to 18h 15m. There are 3935 mi between Philadelphia and Heidelberg. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Philadelphia to Heidelberg one-way?

    One-way options have recently been found by users for as low as $411 on United Airlines. Other airlines that offer cheap prices include Lufthansa from $478 and American Airlines from $544 one-way.

  • What are the most reliable airlines from Philadelphia to Heidelberg?

    The top 3 most reliable airlines when flying from Philadelphia to Heidelberg are Austrian Airlines (68%), Discover Airlines (68%) and Brussels Airlines (68%).

  • What are the cheapest flights from Philadelphia to Heidelberg?

    Looking at all options, your cheapest flight can be booked for $324. While the most popular route (Philadelphia - Frankfurt am Main) can be booked for $662 on average, our data indicates $1,933 when flying from Philadelphia to Heidelberg.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Philadelphia to Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Heidelberg (average of $294). Flying from Philadelphia to Heidelberg in December is currently the most expensive (average of $591). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Philadelphia to Heidelberg

Discover the top 8 airlines that operate flights from Philadelphia to Heidelberg. 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 February 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$557Average$1,117FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$593Average$627FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$638Average$928FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$673Average$964FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$697Average$969FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$729Average$852FlexibilityNo cancel feeOn-timeN/A
Discover AirlinesCheapest$752Average$1,206FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$763Average$963FlexibilityNo cancel feeOn-time71%

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