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$390+ Cheap flights from Killeen (GRK) 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — FRA
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Cheap flight deals from Killeen to Heidelberg

Cheapest flights from Killeen to Heidelberg
Explore the most affordable flight options available from Killeen to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.

This American Airlines deal was found by Cheapflights users on 2/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:50 pm
GRK
-
FRA
2 stops26h 55m
American Airlines
Sat 7/256:40 am
FRA
-
GRK
2 stops23h 55m
American Airlines
Deal found 2/18$1,304
This American Airlines deal was found by Cheapflights users on 2/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:24 pm
GRK
-
FRA
2 stops28h 56m
American Airlines
Sat 7/256:40 am
FRA
-
GRK
2 stops23h 55m
American Airlines
Deal found 2/18$1,312
This American Airlines deal was found by Cheapflights users on 2/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:06 pm
GRK
-
FRA
2 stops20h 14m
American Airlines
Sat 7/256:40 am
FRA
-
GRK
2 stops23h 55m
American Airlines
Deal found 2/18$1,374
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:33 pm
GRK
-
FRA
2 stops31h 17m
American Airlines
Wed 3/1111:30 am
FRA
-
GRK
2 stops57h 59m
American Airlines
Deal found 2/19$1,436
This American Airlines deal was found by Cheapflights users on 2/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:24 pm
GRK
-
FRA
2 stops19h 21m
American Airlines
Sat 7/256:40 am
FRA
-
GRK
2 stops23h 55m
American Airlines
Deal found 2/18$1,514

Find flight deals from Killeen to Heidelberg

Keep the following information in mind while searching for Killeen to Heidelberg flight deals. Data was last updated February 22, 2026.

Round-trip from

$1,304
(American Airlines)

One-way from

$390
(American Airlines)
From Killeen Fort Hood Regional to Heidelberg
Search Deals
One-way flight from Killeen Fort Hood Regional to Heidelberg
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen 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 February 22, 2026.
Use the filters below to find and compare flights from Killeen to Heidelberg that are best for you.

Fly from

Killeen

Fly to

Heidelberg

Route

Depart

Return

Price

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Sun 7/19

7:24 pm-10:20 pm

2 stops19h 56m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,304

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Mon 7/20

3:06 pm-10:20 pm

2 stops24h 14m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,304

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Wed 7/15

12:50 pm-10:45 pm

2 stops26h 55m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,304

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Tue 7/21

3:06 pm-1:50 pm

2 stops15h 44m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,304

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Sat 7/18

7:24 pm-7:20 am

2 stops28h 56m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,312

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Thu 7/16

3:06 pm-6:20 pm

2 stops20h 14m

Frankfurt am Main

Sat 7/25

6:40 am-11:35 pm

2 stops23h 55m

$1,374

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Sat 3/7

6:33 pm-8:50 am

2 stops31h 17m

Frankfurt am Main

Wed 3/11

11:30 am-3:29 pm

2 stops57h 59m

$1,436

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Mon 7/27

7:24 pm-10:20 pm

2 stops19h 56m

$390

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Tue 7/28

12:50 pm-7:45 pm

2 stops23h 55m

$390

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Sun 7/26

7:24 pm-8:45 am

1 stop30h 21m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 16 results
1
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Best time to book a flight from Killeen to Heidelberg

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

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

Currently, March is the cheapest month in which you can book a flight from Killeen to Heidelberg (average of $498). Flying from Killeen to Heidelberg in June is currently the most expensive (average of $889). 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 February 22, 2026.
Get a feel of what it's like to fly with American Airlines from Killeen 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.
American Airlines
7.2
Good
11,338 reviews

Overall

7.2

Crew

8.0

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
11,338 reviews
American Airlines
7.2
Good
11,338 reviews

Overall

7.2

Crew

8.0

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

Related info for your journey

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

    Most people fly from Killeen Fort Hood Regional (GRK) if they book a flight from Killeen to Heidelberg. On average, Fort Hood Regional has 0 outbound flights to Heidelberg per day from 1 airline. Killeen Fort Hood Regional is conveniently located just 6.9 mi from Killeen’s city center.

  • How long is the flight from Killeen to Heidelberg?

    Departing from Killeen to Heidelberg will take you 19h 56m. There are 5254 mi between Killeen and Heidelberg.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Killeen to Heidelberg (average of $498). Flying from Killeen to Heidelberg in June is currently the most expensive (average of $889). 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 airline flying from Killeen to Heidelberg

Discover the top airline that operate flights from Killeen 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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$757Average$1,106FlexibilityNo cancel feeOn-time71%

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