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$604+ Cheap flights from Allentown (ABE) to Heidelberg, Germany

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — FRA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Allentown to Heidelberg

Cheapest flights from Allentown to Heidelberg
Explore the most affordable flight options available from Allentown to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/21. 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.
Fri 2/2010:36 am
ABE
-
FRA
2 stops17h 29m
United Airlines
Fri 2/279:50 am
FRA
-
ABE
2 stops32h 00m
United Airlines
Deal found 1/21$604
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:15 am
ABE
-
FRA
2 stops24h 50m
United Airlines
Mon 2/24:10 pm
FRA
-
ABE
2 stops34h 55m
United Airlines
Deal found 1/20$654
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:38 pm
ABE
-
FRA
1 stop34h 17m
United Airlines
Mon 4/205:20 pm
FRA
-
ABE
1 stop22h 38m
United Airlines
Deal found 1/20$659

Find flight deals from Allentown to Heidelberg

Keep the following information in mind while searching for Allentown to Heidelberg flight deals. Data was last updated January 21, 2026.

Round-trip from

$659
(United Airlines)
From Allentown-Bethlehem to Heidelberg
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 January 21, 2026.
Use the filters below to find and compare flights from Allentown to Heidelberg that are best for you.

Fly from

Allentown

Fly to

Heidelberg

Route

Depart

Return

Price

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 2/20

10:36 am-10:05 am

2 stops17h 29m

Frankfurt am Main

Fri 2/27

9:50 am-11:50 am

2 stops32h 00m

$604

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Sun 6/28

11:50 am-12:25 pm

2 stops18h 35m

Frankfurt am Main

Tue 7/14

4:00 pm-5:01 pm

2 stops31h 01m

$1,012

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Wed 7/1

6:30 am-5:45 pm

2 stops29h 15m

Frankfurt am Main

Sat 7/11

10:40 am-10:56 pm

1 stop18h 16m

$1,092

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Sun 6/28

1:00 pm-2:20 pm

2 stops19h 20m

Frankfurt am Main

Thu 7/16

10:40 am-10:56 pm

1 stop18h 16m

$1,142

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Sun 6/28

1:00 pm-2:20 pm

2 stops19h 20m

Frankfurt am Main

Sat 7/11

10:40 am-10:56 pm

1 stop18h 16m

$1,156

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 6/19

1:00 pm-8:55 am

1 stop13h 55m

Frankfurt am Main

Tue 6/30

7:05 am-10:56 pm

2 stops21h 51m

$1,157

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Thu 7/2

5:40 pm-5:45 pm

2 stops18h 05m

Frankfurt am Main

Sat 7/11

10:40 am-10:56 pm

1 stop18h 16m

$1,162

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 7/3

1:00 pm-2:20 pm

2 stops19h 20m

Frankfurt am Main

Sat 7/11

10:40 am-10:56 pm

1 stop18h 16m

$1,162

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 7/3

6:30 am-8:55 am

1 stop20h 25m

Frankfurt am Main

Thu 7/16

10:40 am-10:56 pm

1 stop18h 16m

$1,176

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Best time to book a flight from Allentown to Heidelberg

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

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

Currently, January is the cheapest month in which you can book a flight from Allentown to Heidelberg (average of $461). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $780). 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.

Related info for your journey

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

    Allentown-Bethlehem (ABE) is the airport you will fly out of if you book a flight from Allentown to Heidelberg. You should not have trouble finding flights to Heidelberg from Allentown-Bethlehem; 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 0 airlines have flights from the Allentown airport to Heidelberg. It is only a 3.9 mi journey to Allentown-Bethlehem (ABE) from Allentown’s city center.

  • How long is the flight from Allentown to Heidelberg?

    Departing from Allentown to Heidelberg will take you 17h 29m. The distance from Allentown to Heidelberg is about 3909 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown 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 Allentown to Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Allentown to Heidelberg (average of $461). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $780). 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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