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$754+ Cheap flights from Oshkosh, WI 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — FRA
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Oshkosh to Heidelberg

Keep the following information in mind while searching for Oshkosh to Heidelberg flight deals. Data was last updated June 18, 2025.

Round-trip from

$754
(lol.travel)

Popular in

June

Cheapest in

November

Average price

$1,520
From Oshkosh to Heidelberg
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($364 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Oshkosh to Heidelberg

Cheapest flights from Oshkosh to Heidelberg
Explore the most affordable flight options available from Oshkosh to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This lol.travel deal was found by Cheapflights users on 6/17. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:21 pmATW - FRA
2 stops29h 39mLufthansa
Sat 12/610:50 amFRA - ATW
1 stop13h 00mLufthansa
Deal found 6/17$754
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:30 amATW - FRA
2 stops17h 55mUnited Airlines
Sat 12/69:45 amFRA - ATW
2 stops35h 23mUnited Airlines
Deal found 6/17$782
This Virgin Atlantic deal was found by Cheapflights users on 6/16. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:34 amATW - FRA
1 stop20h 21mVirgin Atlantic
Sat 8/2310:40 amFRA - ATW
1 stop19h 13mVirgin Atlantic
Deal found 6/16$805
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:34 amATW - FRA
2 stops20h 06mDelta
Sat 8/2310:40 amFRA - ATW
2 stops18h 12mDelta
Deal found 6/16$810
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:30 amATW - FRA
3 stops30h 30mMultiple Airlines
Sat 8/237:20 amFRA - ATW
3 stops47h 19mMultiple Airlines
Deal found 6/17$1,348

Cheapflights Fare Finder

Customize your flight search to find flights from Oshkosh 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 June 18, 2025.
Use the filters below to find and compare flights from Oshkosh to Heidelberg that are best for you.

Fly from

Oshkosh

Fly to

Heidelberg

Route

Depart

Return

Price

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Thu 11/27

5:21 pm-6:00 am

2 stops29h 39m

Frankfurt am Main

Sat 12/6

10:50 am-4:50 pm

1 stop13h 00m

$754

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Thu 11/27

6:30 am-7:25 am

2 stops17h 55m

Frankfurt am Main

Sat 12/6

9:45 am-2:08 pm

2 stops35h 23m

$782

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 8/15

5:34 am-8:55 am

1 stop20h 21m

Frankfurt am Main

Sat 8/23

10:40 am-10:53 pm

1 stop19h 13m

$805

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 8/15

5:34 am-8:40 am

2 stops20h 06m

Frankfurt am Main

Sat 8/23

10:40 am-9:52 pm

2 stops18h 12m

$810

AppletonFrankfurt am Main

ATW - FRA

ATWFRA

Appleton Intl

Fri 8/15

7:30 am-9:00 pm

3 stops30h 30m

Frankfurt am Main

Sat 8/23

7:20 am-11:39 pm

3 stops47h 19m

$1,348

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Best time to book a flight from Oshkosh to Heidelberg

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

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

Currently, January is the cheapest month in which you can book a flight from Oshkosh to Heidelberg (average of $729). Flying from Oshkosh to Heidelberg in June is currently the most expensive (average of $1,087). 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.

Rainfall in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Heidelberg ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Heidelberg when rainfall is around 1.6 in.

Temperature in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Heidelberg, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 June 18, 2025.
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
653 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,158 reviews
Delta
8.0
Very good
7,964 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to Heidelberg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Oshkosh to Heidelberg (average of $729). Flying from Oshkosh to Heidelberg in June is currently the most expensive (average of $1,087). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Oshkosh to Heidelberg

Discover the top 4 airlines that operate flights from Oshkosh 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$672Average$1,124FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$680Average$1,110FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$696Average$1,051FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$769Average$1,260FlexibilityNo cancel feeOn-time71%

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