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Cheap flights from London Heathrow Airport to Killeen from £839

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GRK
16 May — 23 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Killeen

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Killeen
Explore the most affordable flight options available from Heathrow to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2026.

Mon 18/510:05
LHR
-
GRK
1 stop17h 47m
American Airlines
Mon 25/510:04
GRK
-
LHR
2 stops18h 11m
American Airlines
Deal found 11/4£961
Thu 3/912:55
LHR
-
GRK
1 stop16h 41m
Multiple Airlines
Tue 8/912:37
GRK
-
LHR
1 stop16h 18m
Multiple Airlines
Deal found 14/4£962
Sun 1/1116:10
LHR
-
GRK
2 stops34h 57m
Iberia
Mon 30/1118:49
GRK
-
LHR
1 stop11h 11m
Iberia
Deal found 14/4£982
Sat 9/510:05
LHR
-
GRK
1 stop17h 47m
American Airlines
Tue 12/510:05
GRK
-
LHR
1 stop14h 15m
American Airlines
Deal found 14/4£986
Fri 25/912:55
LHR
-
GRK
1 stop16h 44m
Multiple Airlines
Sat 3/1012:35
GRK
-
LHR
1 stop16h 20m
Multiple Airlines
Deal found 15/4£992
Wed 20/508:15
LHR
-
GRK
2 stops21h 31m
American Airlines
Tue 26/510:04
GRK
-
LHR
2 stops15h 16m
American Airlines
Deal found 11/4£995
Wed 20/511:30
LHR
-
GRK
2 stops18h 16m
American Airlines
Mon 25/510:04
GRK
-
LHR
2 stops14h 21m
American Airlines
Deal found 11/4£1,011
Tue 19/512:55
LHR
-
GRK
1 stop12h 59m
American Airlines
Wed 27/512:54
GRK
-
LHR
2 stops14h 56m
American Airlines
Deal found 11/4£1,024
Sat 9/508:15
LHR
-
GRK
2 stops16h 28m
Finnair
Tue 12/511:58
GRK
-
LHR
1 stop12h 22m
Finnair
Deal found 14/4£1,030

Find flight deals from Heathrow to Killeen

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Killeen (GRK). 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 16 April 2026.

Round-trip from

£961

One-way from

£839
American Airlines
  • American Airlines
  • 18/5-25/5
  • 3 total stops
  • 35h 58m total
  • London to Killeen
Search Deals
American Airlines
  • American Airlines
  • 3/8
  • 2 total stops
  • 16h 35m total
  • London to Killeen
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Killeen 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 858,174 searches. Data last updated 16 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Killeen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Tue 19/5

12:55-19:54

1 stop12h 59m

Killeen Fort Hood Regional

Mon 25/5

10:04-10:15

2 stops18h 11m

£961

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Thu 3/9

12:55-23:36

1 stop16h 41m

Killeen Fort Hood Regional

Tue 8/9

12:37-10:55

1 stop16h 18m

£962

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sat 9/5

10:05-21:52

1 stop17h 47m

Killeen Fort Hood Regional

Tue 12/5

10:05-06:20

1 stop14h 15m

£986

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 25/9

12:55-23:39

1 stop16h 44m

Killeen Fort Hood Regional

Sat 3/10

12:35-10:55

1 stop16h 20m

£992

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sat 9/5

08:15-18:43

2 stops16h 28m

Killeen Fort Hood Regional

Tue 12/5

11:58-06:20

1 stop12h 22m

£1,030

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Wed 20/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Sun 24/5

19:21-14:25

1 stop13h 04m

£1,061

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Mon 18/5

14:25-21:52

1 stop13h 27m

Killeen Fort Hood Regional

Sun 24/5

19:21-14:25

1 stop13h 04m

£1,061
Fastest return journey

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Thu 21/5

16:25-23:38

1 stop13h 13m

Killeen Fort Hood Regional

Sun 24/5

19:21-14:25

1 stop13h 04m

£1,090
Cheapest one-way

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Wed 5/8

08:15-20:56

2 stops18h 41m

£839

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Mon 3/8

08:15-18:50

2 stops16h 35m

£839

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Killeen

Have a flexible travel schedule? Discover the best time to fly to Killeen from Heathrow with our price prediction graph.
Estimated return 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.

Related info for your journey

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

    For a flight from London Heathrow to Killeen, you will be flying into Fort Hood Regional. Killeen Fort Hood Regional (GRK) is just 6.9 mi from the center of the city. Fort Hood Regional is the only Killeen airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Killeen Fort Hood Regional from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Killeen?

    There are many flights that can get you from London Heathrow Airport to Killeen in 12h 59m. Fly via American Airlines to get the fastest option. Airlines will cover a distance of 4862 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Killeen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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How does Cheapflights help users find flights from Heathrow to Killeen?

When you search for this flight from Heathrow to Killeen, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Killeen?

Cheapflights helps you find that perfect flight to Killeen from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Killeen with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Killeen with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Killeen become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Killeen flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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