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$749+ Cheap flights from Killeen (GRK) to Heathrow (LHR)

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LHR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Killeen to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$749
(American Airlines)
From Killeen Fort Hood Regional to London Heathrow
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Find flight deals from Killeen to Heathrow

Cheapest flights from Killeen to Heathrow
Explore the most affordable flight options available from Killeen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 12/24:10 pmGRK - LHR
1 stop13h 30mAmerican Airlines
Thu 1/18:20 amLHR - GRK
1 stop13h 11mAmerican Airlines
Deal found 8/13$994
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/246:28 amGRK - LHR
1 stop21h 32mAmerican Airlines
Tue 12/304:30 pmLHR - GRK
1 stop22h 35mAmerican Airlines
Deal found 8/12$1,110
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 12/234:50 pmGRK - LHR
1 stop32h 00mAmerican Airlines
Tue 12/304:30 pmLHR - GRK
1 stop22h 35mAmerican Airlines
Deal found 8/12$1,165
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/244:50 pmGRK - LHR
1 stop11h 10mAmerican Airlines
Mon 12/292:55 pmLHR - GRK
1 stop14h 31mAmerican Airlines
Deal found 8/12$1,170
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 12/234:50 pmGRK - LHR
1 stop32h 00mAmerican Airlines
Mon 12/292:55 pmLHR - GRK
1 stop14h 31mAmerican Airlines
Deal found 8/12$1,225
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/254:50 pmGRK - LHR
1 stop11h 10mAmerican Airlines
Mon 12/292:55 pmLHR - GRK
1 stop14h 31mAmerican Airlines
Deal found 8/12$1,230
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/264:50 pmGRK - LHR
1 stop13h 25mAmerican Airlines
Tue 12/304:30 pmLHR - GRK
1 stop22h 35mAmerican Airlines
Deal found 8/12$1,270
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/244:50 pmGRK - LHR
1 stop11h 10mAmerican Airlines
Wed 12/318:20 amLHR - GRK
1 stop13h 11mAmerican Airlines
Deal found 8/12$1,275
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 12/234:50 pmGRK - LHR
1 stop32h 00mAmerican Airlines
Thu 1/18:20 amLHR - GRK
1 stop13h 11mAmerican Airlines
Deal found 8/12$1,330

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen to Heathrow 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 August 14, 2025.
Use the filters below to find and compare flights from Killeen to London Heathrow Airport that are best for you.

Fly from

Killeen

Fly to

Heathrow

Route

Depart

Return

Price

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 1/6

6:42 pm-11:40 am

1 stop10h 58m

London Heathrow

Tue 3/3

2:55 pm-11:24 pm

1 stop14h 29m

$749

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 12/2

4:10 pm-11:40 am

1 stop13h 30m

London Heathrow

Thu 1/1

8:20 am-3:31 pm

1 stop13h 11m

$994

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Wed 12/24

6:28 am-10:00 am

1 stop21h 32m

London Heathrow

Tue 12/30

4:30 pm-9:05 am

1 stop22h 35m

$1,110

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 12/23

4:50 pm-6:50 am

1 stop32h 00m

London Heathrow

Tue 12/30

4:30 pm-9:05 am

1 stop22h 35m

$1,165

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Thu 12/25

4:50 pm-10:00 am

1 stop11h 10m

London Heathrow

Tue 12/30

4:30 pm-9:05 am

1 stop22h 35m

$1,170

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Wed 12/24

4:50 pm-10:00 am

1 stop11h 10m

London Heathrow

Mon 12/29

2:55 pm-11:26 pm

1 stop14h 31m

$1,170

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 12/23

4:50 pm-6:50 am

1 stop32h 00m

London Heathrow

Mon 12/29

2:55 pm-11:26 pm

1 stop14h 31m

$1,225

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Thu 12/25

4:50 pm-10:00 am

1 stop11h 10m

London Heathrow

Mon 12/29

2:55 pm-11:26 pm

1 stop14h 31m

$1,230

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Fri 12/26

4:50 pm-12:15 pm

1 stop13h 25m

London Heathrow

Tue 12/30

4:30 pm-9:05 am

1 stop22h 35m

$1,270

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Killeen to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 London Heathrow Airport

What is the cheapest month to book a flight from Killeen to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of $661). Flying from Killeen to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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.

Related info for your journey

Find useful and relevant information for your journey from Killeen to Heathrow. 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 London Heathrow?

    If you book a flight to London Heathrow from Killeen, you will be flying from Fort Hood Regional, which is the city’s only airport. Killeen Fort Hood Regional (GRK) is located 6.9 mi from the center of Killeen. There are 0 flights from Fort Hood Regional to London Heathrow per day from 0 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Killeen to Heathrow 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 London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of $661). Flying from Killeen to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

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