How long is the flight from Killeen to Heidelberg?

Departing from Killeen to Heidelberg will take you 21h 55m. There are 5254 mi between Killeen and Heidelberg.

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.

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).

What is the cheapest time of day to fly from GRK to HE1?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Killeen to Heidelberg as you normally would.

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.

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.

$779+ Flights from Killeen to Heidelberg

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Cheap flight deals from Killeen to Heidelberg

Round-trip from	$779 (American Airlines)

From Killeen Fort Hood Regional to Heidelberg

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Find 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 January 8, 2026.

Tue 3/1710:15 amGRK - FRA

2 stops21h 55mAmerican Airlines

Thu 3/2610:15 amFRA - GRK

1 stop29h 30mAmerican Airlines

Deal found 1/7

$779

Wed 3/257:00 amGRK - FRA

1 stop18h 15mAmerican Airlines

Wed 4/810:55 amFRA - GRK

1 stop14h 44mAmerican Airlines

Deal found 1/7

$3,787

Tue 3/2412:01 pmGRK - FRA

1 stop13h 14mAmerican Airlines

Tue 4/76:40 amFRA - GRK

2 stops18h 59mAmerican Airlines

Deal found 1/7

$3,825

Best flights from Killeen to Heidelberg
Discover carefully curated flight deals from Killeen to Heidelberg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 8, 2026.

Tue 3/1710:15 amGRK - FRA

2 stops21h 55mAmerican Airlines

Thu 3/2610:15 amFRA - GRK

1 stop29h 30mAmerican Airlines

Deal found 1/7

$779

Wed 3/2510:15 amGRK - FRA

2 stops16h 35mAmerican Airlines

Wed 4/810:55 amFRA - GRK

1 stop14h 44mAmerican Airlines

Deal found 1/8

$3,791

Tue 3/2412:01 pmGRK - FRA

1 stop13h 14mAmerican Airlines

Tue 4/76:40 amFRA - GRK

2 stops18h 59mAmerican Airlines

Deal found 1/7

$3,825

Fly from

Fly to

Route

Depart

Return

Price

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Tue 3/17

10:15 am-2:10 pm

2 stops21h 55m

Frankfurt am Main

Thu 3/26

10:15 am-9:45 am

1 stop29h 30m

$779

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Wed 3/25

10:15 am-8:50 am

2 stops16h 35m

Frankfurt am Main

Wed 4/8

10:55 am-6:39 pm

1 stop14h 44m

$3,791

KilleenFrankfurt am Main

GRK - FRA

GRKFRA

Killeen Fort Hood Regional

Tue 3/24

12:01 pm-7:15 am

1 stop13h 14m

Frankfurt am Main

Tue 4/7

6:40 am-6:39 pm

2 stops18h 59m

$3,825

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

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 $501). Flying from Killeen to Heidelberg in June is currently the most expensive (average of $904). 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 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

11,094 reviews

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

11,094 reviews

American Airlines

7.2

Good

11,094 reviews

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

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 21h 55m. 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 $501). Flying from Killeen to Heidelberg in June is currently the most expensive (average of $904). 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

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$757	Average$1,005	FlexibilityNo cancel fee	On-time71%

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$779+ Cheap flights from Killeen (GRK) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Killeen to Heidelberg with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Killeen to Heidelberg

Keep the following information in mind while searching for Killeen to Heidelberg flight deals. Data was last updated January 8, 2026.

Round-trip from

Find flight deals from Killeen to Heidelberg

Cheapest flights from Killeen to HeidelbergExplore 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 January 8, 2026.

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 January 8, 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Killeen to Heidelberg that are best for you.

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.

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?

Reviews of airlines servicing Heidelberg

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.

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?

How long is the flight from Killeen to Heidelberg?

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

How can I find direct flights from Killeen to Heidelberg?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Killeen to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Killeen to Heidelberg

100% Free

Book with Flexibility

Travel Smart

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 January 8, 2026.