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Heidelberg

$303+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — FRA
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
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 Wednesday 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 December 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/19. 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.
Mon 12/297:30 amPHL - FRA
1 stop22h 05mMultiple Airlines
Thu 1/85:45 pmFRA - PHL
2 stops37h 12mMultiple Airlines
Deal found 12/19$1,350
This CheapOair deal was found by Cheapflights users on 12/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:40 amPHL - FRA
2 stops21h 50mMultiple Airlines
Fri 1/98:20 pmFRA - PHL
2 stops28h 18mMultiple Airlines
Deal found 12/20$1,434
This Kiwi.com deal was found by Cheapflights users on 12/19. 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.
Sat 12/275:30 pmPHL - FRA
1 stop32h 40mMultiple Airlines
Thu 1/89:40 pmFRA - PHL
2 stops41h 17mMultiple Airlines
Deal found 12/19$1,439
This Cheapflightsfares deal was found by Cheapflights users on 12/19. 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.
Sat 12/276:10 pmPHL - FRA
Nonstop7h 50mLufthansa
Thu 1/81:00 pmFRA - PHL
Nonstop9h 05mLufthansa
Deal found 12/19$1,509
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/246:20 amPHL - FRA
1 stop22h 20mMultiple Airlines
Tue 1/610:15 pmFRA - PHL
2 stops47h 19mMultiple Airlines
Deal found 12/18$1,568
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/246:20 amPHL - FRA
1 stop22h 20mMultiple Airlines
Mon 1/59:10 amFRA - PHL
2 stops40h 29mMultiple Airlines
Deal found 12/20$1,574
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/2310:32 amPHL - FRA
1 stop20h 28mMultiple Airlines
Mon 1/59:10 amFRA - PHL
2 stops40h 29mMultiple Airlines
Deal found 12/20$1,587
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/2310:32 amPHL - FRA
1 stop20h 28mMultiple Airlines
Tue 1/610:15 pmFRA - PHL
2 stops47h 19mMultiple Airlines
Deal found 12/18$1,604

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 December 21, 2025.

Round-trip from

$690
(Booking.com)

One-way from

$303
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,052
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 ($253 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 21, 2025.
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

Sun 1/18

9:25 pm-2:45 pm

1 stop11h 20m

Frankfurt am Main

Sun 1/25

2:45 pm-2:05 pm

2 stops29h 20m

$799

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 2/24

3:30 pm-7:25 am

1 stop9h 55m

Frankfurt am Main

Tue 3/3

5:10 pm-5:14 pm

2 stops30h 04m

$811

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Mon 1/19

6:35 pm-3:30 pm

1 stop14h 55m

Frankfurt am Main

Mon 1/26

5:55 pm-4:15 pm

1 stop28h 20m

$853

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Thu 1/15

1:30 pm-4:55 pm

2 stops21h 25m

Frankfurt am Main

Thu 1/22

6:00 am-6:23 pm

2 stops18h 23m

$865

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Mon 1/19

3:30 pm-7:25 am

1 stop9h 55m

Frankfurt am Main

Mon 1/26

8:45 pm-9:36 pm

2 stops30h 51m

$871

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Mon 2/2

11:22 am-7:15 pm

3 stops25h 53m

Frankfurt am Main

Mon 2/9

10:30 am-9:16 pm

2 stops16h 46m

$873

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Thu 1/15

1:30 pm-4:55 pm

2 stops21h 25m

Frankfurt am Main

Tue 2/3

5:45 pm-6:23 pm

2 stops30h 38m

$874

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Tue 2/24

11:08 am-4:45 pm

3 stops23h 37m

Frankfurt am Main

Tue 3/3

10:30 am-9:13 pm

2 stops16h 43m

$881

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Sat 2/7

2:00 pm-5:55 pm

3 stops21h 55m

Frankfurt am Main

Tue 2/10

10:30 am-9:16 pm

2 stops16h 46m

$885

PhiladelphiaFrankfurt am Main

PHL - FRA

PHLFRA

Philadelphia

Sat 3/14

2:52 pm-12:05 pm

2 stops16h 13m

Frankfurt am Main

Sat 3/21

9:45 am-12:16 am

2 stops43h 31m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

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 December 12, 2025.

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 $300). 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.

What is the cheapest time of day to fly from PHL to HE1?

Find hourly flight availability from Philadelphia to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

It’s optimal to fly from Philadelphia to Heidelberg in the afternoon. By choosing this option you can save up to 60% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Philadelphia to Heidelberg?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Heidelberg. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to Heidelberg flight should consider departing on Tuesday at noon when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Philadelphia to Heidelberg?

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 December 21, 2025.
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
9,097 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,097 reviews
United Airlines
7.4
Good
9,097 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,050 reviews
United Airlines
7.4
Good
9,097 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Aer Lingus
7.2
Good
1,406 reviews
United Airlines
7.4
Good
9,097 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
7,640 reviews
United Airlines
7.4
Good
9,097 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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?

    United Airlines, British Airways, and TAP AIR PORTUGAL can get you from Philadelphia to Heidelberg in just under 9h 55m. Your travel time can differ by up to 11h 30m. 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 $464 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 (75%), Discover Airlines (75%) and Brussels Airlines (75%).

  • What are the cheapest flights from Philadelphia to Heidelberg?

    Looking at all options, your cheapest flight can be booked for $414. While the most popular route (Philadelphia - Frankfurt am Main) can be booked for $665 on average, our data indicates $2,107 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 $300). 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.

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Alternative routes for Philadelphia to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$1,236FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$593Average$627FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$638Average$928FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$659Average$852FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$695Average$984FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$697Average$1,007FlexibilityNo cancel feeOn-time69%
Discover AirlinesCheapest$752Average$1,206FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$763Average$963FlexibilityNo cancel feeOn-time71%

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