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$557+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — FRA
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Cheap flight deals from Allentown to Heidelberg

Keep the following information in mind while searching for Allentown to Heidelberg flight deals. Data was last updated November 17, 2025.

Round-trip from

$557
(KLM)
From Allentown-Bethlehem to Heidelberg
Search Deals

Find 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 November 17, 2025.

This United Airlines deal was found by Cheapflights users on 11/16. 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 12/15:22 pmABE - FRA
2 stops16h 43mUnited Airlines
Tue 12/99:45 amFRA - ABE
2 stops37h 02mUnited Airlines
Deal found 11/16$680
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:04 pmABE - FRA
1 stop32h 36mDelta
Wed 12/316:55 amFRA - ABE
2 stops21h 51mDelta
Deal found 11/17$1,103
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:04 pmABE - FRA
1 stop32h 36mDelta
Thu 1/19:50 amFRA - ABE
1 stop18h 56mDelta
Deal found 11/17$1,104
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:04 pmABE - FRA
1 stop32h 36mDelta
Mon 12/2911:50 amFRA - ABE
2 stops35h 34mDelta
Deal found 11/17$1,163
This Air France deal was found by Cheapflights users on 11/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:25 amABE - FRA
1 stop20h 15mMultiple Airlines
Thu 1/19:50 amFRA - ABE
1 stop18h 56mMultiple Airlines
Deal found 11/17$1,229
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:04 pmABE - FRA
1 stop32h 36mDelta
Sun 12/286:55 amFRA - ABE
2 stops21h 51mDelta
Deal found 11/17$1,233

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 November 17, 2025.
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

Sun 2/15

12:47 pm-8:40 am

1 stop13h 53m

Frankfurt am Main

Tue 2/24

9:50 am-10:47 pm

1 stop18h 57m

$557

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Mon 2/16

12:47 pm-8:40 am

1 stop13h 53m

Frankfurt am Main

Tue 2/24

6:55 am-10:47 pm

2 stops21h 52m

$578

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Sun 2/15

12:47 pm-4:45 pm

2 stops21h 58m

Frankfurt am Main

Tue 2/24

6:55 am-10:47 pm

2 stops21h 52m

$597

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Mon 12/1

5:22 pm-4:05 pm

2 stops16h 43m

Frankfurt am Main

Tue 12/9

9:45 am-4:47 pm

2 stops37h 02m

$680

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 12/23

6:04 pm-8:40 am

1 stop32h 36m

Frankfurt am Main

Thu 1/1

9:50 am-10:46 pm

1 stop18h 56m

$1,104

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 12/23

6:04 pm-7:50 am

2 stops31h 46m

Frankfurt am Main

Tue 12/30

2:15 pm-10:46 pm

2 stops38h 31m

$1,118

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 12/23

6:04 pm-7:50 am

2 stops31h 46m

Frankfurt am Main

Wed 12/31

6:55 am-10:46 pm

2 stops21h 51m

$1,118

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 12/23

6:04 pm-8:40 am

1 stop32h 36m

Frankfurt am Main

Mon 12/29

11:50 am-5:24 pm

2 stops35h 34m

$1,163

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 3/27

10:33 am-9:55 am

1 stop18h 22m

Frankfurt am Main

Tue 3/31

5:05 pm-9:12 pm

2 stops34h 07m

$1,165

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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, February is the cheapest month in which you can book a flight from Allentown to Heidelberg (average of $431). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $760). 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 ABE to HE1?

Find hourly flight availability from Allentown 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 November 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 73% on flights from Allentown to Heidelberg by exploring options for tickets in the evening.

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 13h 53m. 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, February is the cheapest month in which you can book a flight from Allentown to Heidelberg (average of $431). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $760). 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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