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$525+ Cheap flights from Allentown (ABE) 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — FRA
Jan 23 — Jan 301
Fri 1/23
Fri 1/30
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 December 24, 2025.

This United Airlines deal was found by Cheapflights users on 12/23. 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.
Wed 12/246:17 amABE - FRA
2 stops25h 48mUnited Airlines
Wed 12/318:40 amFRA - ABE
1 stop13h 50mUnited Airlines
Deal found 12/23$1,014
This United Airlines deal was found by Cheapflights users on 12/23. 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.
Wed 12/246:17 amABE - FRA
2 stops23h 48mUnited Airlines
Thu 1/18:40 amFRA - ABE
1 stop13h 50mUnited Airlines
Deal found 12/23$1,015
This United Airlines deal was found by Cheapflights users on 12/23. 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.
Wed 12/246:17 amABE - FRA
2 stops29h 48mUnited Airlines
Tue 1/64:10 pmFRA - ABE
2 stops30h 12mUnited Airlines
Deal found 12/23$1,030
This United Airlines deal was found by Cheapflights users on 12/23. 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.
Sat 12/275:07 pmABE - FRA
1 stop31h 28mUnited Airlines
Tue 1/64:10 pmFRA - ABE
2 stops30h 12mUnited Airlines
Deal found 12/23$1,040
This United Airlines deal was found by Cheapflights users on 12/23. 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 12/256:17 amABE - FRA
2 stops25h 48mUnited Airlines
Wed 12/318:40 amFRA - ABE
1 stop13h 50mUnited Airlines
Deal found 12/23$1,064
This United Airlines deal was found by Cheapflights users on 12/23. 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 12/256:17 amABE - FRA
2 stops25h 48mUnited Airlines
Thu 1/18:40 amFRA - ABE
1 stop13h 50mUnited Airlines
Deal found 12/23$1,065

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 December 24, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$609
(Delta)

One-way from

$525
(Delta)

Popular in

December

Cheapest in

January

Average price

$938
Provider with most accurate pricing for New York (NYC)-Frankfurt am Main flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Frankfurt am Main flights.
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From Allentown-Bethlehem to Heidelberg
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One-way flight from Allentown-Bethlehem to Heidelberg
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 24, 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

Wed 2/11

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Mon 2/23

2:15 pm-5:12 pm

2 stops32h 57m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Thu 2/12

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Fri 2/20

6:55 am-5:16 pm

2 stops16h 21m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 2/10

5:59 pm-8:40 am

1 stop32h 41m

Frankfurt am Main

Mon 2/23

6:55 am-10:49 pm

2 stops21h 54m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 2/13

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Fri 2/20

6:55 am-10:45 pm

2 stops21h 50m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 2/10

5:59 pm-8:40 am

1 stop32h 41m

Frankfurt am Main

Tue 2/24

2:15 pm-5:12 pm

2 stops32h 57m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Wed 2/11

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Thu 2/19

6:55 am-5:12 pm

2 stops16h 17m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Fri 2/13

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Mon 2/23

6:55 am-5:12 pm

2 stops40h 17m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Tue 2/10

12:48 pm-8:40 am

1 stop13h 52m

Frankfurt am Main

Wed 2/18

10:15 am-5:12 pm

2 stops36h 57m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Thu 2/12

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Wed 2/18

6:55 am-12:05 pm

2 stops35h 10m

$609

AllentownFrankfurt am Main

ABE - FRA

ABEFRA

Allentown-Bethlehem

Thu 2/12

6:28 am-8:40 am

1 stop20h 12m

Frankfurt am Main

Tue 2/24

11:50 am-10:49 pm

2 stops40h 59m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 11 results
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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 $449). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $753). 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 December 24, 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 20h 12m. The distance from Allentown to Heidelberg is about 3909 mi.

  • 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 $449). Flying from Allentown to Heidelberg in June is currently the most expensive (average of $753). 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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