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Cheap flights from London Heathrow Airport to Killeen from £606

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GRK
2 Apr — 9 Apr1
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 3 March 2026.

Mon 11/508:15
LHR
-
GRK
2 stops16h 24m
American Airlines
Fri 22/510:04
GRK
-
LHR
2 stops14h 21m
American Airlines
Deal found 28/2£827
Thu 16/406:10
LHR
-
GRK
2 stops18h 29m
American Airlines
Tue 21/415:54
GRK
-
LHR
1 stop13h 01m
American Airlines
Deal found 1/3£841
Mon 11/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Thu 28/515:07
GRK
-
LHR
1 stop13h 48m
American Airlines
Deal found 28/2£887
Thu 16/416:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Fri 24/411:58
GRK
-
LHR
1 stop12h 22m
American Airlines
Deal found 1/3£888
Fri 8/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Fri 22/515:07
GRK
-
LHR
1 stop13h 48m
American Airlines
Deal found 28/2£894
Mon 11/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Tue 26/515:07
GRK
-
LHR
1 stop13h 48m
American Airlines
Deal found 28/2£903
Fri 8/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Wed 27/510:04
GRK
-
LHR
1 stop18h 51m
American Airlines
Deal found 28/2£917
Fri 8/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Sun 24/519:21
GRK
-
LHR
1 stop33h 34m
American Airlines
Deal found 28/2£934
Fri 8/516:25
LHR
-
GRK
1 stop13h 21m
American Airlines
Sat 23/519:52
GRK
-
LHR
1 stop12h 33m
American Airlines
Deal found 28/2£947
Fri 17/412:55
LHR
-
GRK
1 stop26h 40m
Multiple Airlines
Thu 23/415:54
GRK
-
LHR
1 stop13h 01m
Multiple Airlines
Deal found 1/3£1,052

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 3 March 2026.

Round-trip from

£827

One-way from

£606
American Airlines
  • American Airlines
  • 12/5-22/5
  • 4 total stops
  • 30h 45m total
  • London to Killeen
Search Deals
American Airlines
  • American Airlines
  • 14/5
  • 2 total stops
  • 19h 37m 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 3 March 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

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Thu 16/4

06:10-18:39

2 stops18h 29m

Killeen Fort Hood Regional

Tue 21/4

15:54-10:55

1 stop13h 01m

£841

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 17/4

06:15-18:39

2 stops18h 24m

Killeen Fort Hood Regional

Wed 22/4

19:09-06:20

1 stop29h 11m

£841

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Thu 16/4

06:10-18:39

2 stops18h 29m

Killeen Fort Hood Regional

Thu 23/4

11:58-14:25

1 stop20h 27m

£841

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 17/4

06:15-21:52

2 stops21h 37m

Killeen Fort Hood Regional

Tue 21/4

15:54-10:55

1 stop13h 01m

£841

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Tue 12/5

14:25-21:52

1 stop13h 27m

Killeen Fort Hood Regional

Thu 28/5

15:07-10:55

1 stop13h 48m

£887

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 8/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Fri 22/5

15:07-10:55

1 stop13h 48m

£894

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 8/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Thu 28/5

15:07-10:55

1 stop13h 48m

£917

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sun 10/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Thu 28/5

15:07-10:55

1 stop13h 48m

£917

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Mon 11/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Sat 23/5

19:52-14:25

1 stop12h 33m

£917

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sun 10/5

16:25-23:46

1 stop13h 21m

Killeen Fort Hood Regional

Sun 24/5

19:21-10:55

1 stop33h 34m

£934

Flights are sorted by cheapest return flights first.

Deals found on 28/2

Showing 1-10 of 16 resultsSorted by cheapest first
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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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Killeen

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

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Killeen (average of £448). Flying from London Heathrow Airport to Killeen in July is currently the most expensive (average of £555). 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 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 18h 29m. 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.

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

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Killeen (average of £448). Flying from London Heathrow Airport to Killeen in July is currently the most expensive (average of £555). 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

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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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