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Heidelberg

$605+ Cheap flights from Appleton (ATW) 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — FRA
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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Cheap flight deals from Appleton to Heidelberg

Keep the following information in mind while searching for Appleton to Heidelberg flight deals. Data was last updated November 21, 2025.

Round-trip from

$605
(KLM)

Popular in

June

Cheapest in

January

Average price

$811
From Appleton Intl to Heidelberg
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($363 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($69 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Appleton to Heidelberg

Cheapest flights from Appleton to Heidelberg
Explore the most affordable flight options available from Appleton to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

This KLM deal was found by Cheapflights users on 11/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:08 amATW - FRA
1 stop13h 42mKLM
Mon 12/811:50 amFRA - ATW
2 stops16h 01mKLM
Deal found 11/19$855
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:24 amATW - FRA
2 stops21h 51mDelta
Mon 12/86:55 amFRA - ATW
2 stops21h 25mDelta
Deal found 11/19$859
This Air France deal was found by Cheapflights users on 11/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:08 amATW - FRA
2 stops14h 32mMultiple Airlines
Mon 12/86:55 amFRA - ATW
2 stops15h 43mMultiple Airlines
Deal found 11/20$1,659
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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.
Fri 12/261:00 pmATW - FRA
1 stop10h 35mMultiple Airlines
Sat 1/38:30 amFRA - ATW
2 stops15h 18mMultiple Airlines
Deal found 11/19$3,832

Cheapflights Fare Finder

 
Customize your flight search to find flights from Appleton 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 21, 2025.
Use the filters below to find and compare flights from Appleton to Heidelberg that are best for you.

Fly from

Appleton

Fly to

Heidelberg

Route

Depart

Return

Price

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 2/6

5:20 am-8:40 am

1 stop20h 20m

Frankfurt am Main

Tue 2/10

10:15 am-8:49 pm

2 stops17h 34m

$605

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 2/6

6:45 am-7:50 am

1 stop18h 05m

Frankfurt am Main

Tue 2/10

11:50 am-8:49 pm

2 stops15h 59m

$605

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 2/6

5:20 am-8:40 am

1 stop20h 20m

Frankfurt am Main

Tue 2/10

9:50 am-9:46 pm

1 stop18h 56m

$606

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 2/6

11:03 am-8:40 am

2 stops14h 37m

Frankfurt am Main

Tue 2/10

6:55 am-3:40 pm

2 stops15h 45m

$609

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Wed 2/18

12:34 pm-10:05 am

2 stops14h 31m

Frankfurt am Main

Wed 2/25

8:50 am-4:44 pm

2 stops14h 54m

$829

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Sat 1/3

3:24 pm-7:25 am

2 stops33h 01m

Frankfurt am Main

Sat 1/10

5:15 pm-7:15 pm

2 stops33h 00m

$1,385

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Sat 1/3

1:00 pm-6:35 am

1 stop10h 35m

Frankfurt am Main

Sat 1/10

8:15 am-4:48 pm

2 stops15h 33m

$1,557

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Sat 1/3

3:20 pm-7:25 am

3 stops33h 05m

Frankfurt am Main

Sat 1/10

1:05 pm-2:20 pm

3 stops32h 15m

$2,310

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Best time to book a flight from Appleton to Heidelberg

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

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

Currently, January is the cheapest month in which you can book a flight from Appleton to Heidelberg (average of $618). Flying from Appleton to Heidelberg in June is currently the most expensive (average of $1,224). 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 November 21, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from Appleton to Heidelberg by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Overall

7.9

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Overall

7.9

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,028 reviews
Delta
7.9
Good
8,002 reviews

Overall

7.9

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    If you book a flight to Heidelberg from Appleton, you will be flying from Appleton Intl, which is the city’s only airport. Appleton Intl (ATW) is located 5.1 mi from the center of Appleton. There are 0 flights from Appleton Intl to Heidelberg per day from 2 different airlines.

  • How long is the flight from Appleton to Heidelberg?

    KLM, Delta, and Virgin Atlantic can get you from Appleton to Heidelberg in just under 18h 05m. Your travel time can differ by up to 2h 15m. The distance from Appleton to Heidelberg is about 4241 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Appleton to Heidelberg (average of $618). Flying from Appleton to Heidelberg in June is currently the most expensive (average of $1,224). 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

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Top 2 airlines flying from Appleton to Heidelberg

Discover the top 2 airlines that operate flights from Appleton 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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$660Average$777FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$702Average$1,208FlexibilityNo cancel feeOn-time69%

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