Find flights
When to book
FAQs

Cheap flights from Killeen to London Heathrow Airport from £251

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LHR
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Killeen to Heathrow

Enter your travel dates to find the best prices.

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 10 May 2026.

Mon 24/815:09
GRK
-
LHR
1 stop13h 46m
Multiple Airlines
Tue 1/912:55
LHR
-
GRK
1 stop26h 33m
Multiple Airlines
Deal found 8/5£668
Tue 24/1110:34
GRK
-
LHR
1 stop14h 16m
American Airlines
Mon 30/1115:00
LHR
-
GRK
1 stop14h 43m
American Airlines
Deal found 6/5£738
Mon 23/1118:49
GRK
-
LHR
1 stop11h 26m
Multiple Airlines
Sun 29/1115:00
LHR
-
GRK
1 stop14h 43m
Multiple Airlines
Deal found 5/5£796
Tue 24/1118:49
GRK
-
LHR
1 stop11h 26m
British Airways
Mon 30/1116:30
LHR
-
GRK
2 stops34h 37m
British Airways
Deal found 9/5£835
Mon 23/1111:52
GRK
-
LHR
1 stop14h 23m
American Airlines
Sun 29/1108:20
LHR
-
GRK
1 stop18h 47m
American Airlines
Deal found 9/5£841
Mon 23/1118:49
GRK
-
LHR
1 stop11h 11m
Finnair
Sun 29/1116:15
LHR
-
GRK
2 stops34h 52m
Finnair
Deal found 9/5£854
Thu 14/515:54
GRK
-
LHR
1 stop14h 56m
American Airlines
Thu 28/516:25
LHR
-
GRK
1 stop13h 13m
American Airlines
Deal found 9/5£886
Tue 12/515:54
GRK
-
LHR
2 stops15h 36m
American Airlines
Wed 27/508:50
LHR
-
GRK
2 stops16h 32m
American Airlines
Deal found 9/5£928
Wed 13/519:13
GRK
-
LHR
1 stop11h 37m
American Airlines
Wed 27/508:50
LHR
-
GRK
2 stops16h 32m
American Airlines
Deal found 9/5£928
Fri 15/519:13
GRK
-
LHR
1 stop11h 37m
American Airlines
Sat 23/514:25
LHR
-
GRK
1 stop15h 13m
American Airlines
Deal found 6/5£929
Fri 15/519:13
GRK
-
LHR
1 stop11h 37m
American Airlines
Thu 28/514:25
LHR
-
GRK
1 stop15h 13m
American Airlines
Deal found 8/5£930

Find 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 10 May 2026.

Round-trip from

£668

One-way from

£251
24/8-1/9
  • 24/8-1/9
  • 2 total stops
  • 40h 19m total
  • Killeen to London
Search Deals
21/9
  • 21/9
  • 1 total stop
  • 18h 51m total
  • Killeen to London
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 10 May 2026.
Use the filters below to find and compare flights from Killeen to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Mon 24/8

15:09-10:55

1 stop13h 46m

London Heathrow

Tue 1/9

12:55-09:28

1 stop26h 33m

£668

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Thu 4/6

15:07-10:55

1 stop13h 48m

London Heathrow

Thu 11/6

08:55-22:44

1 stop19h 49m

£947

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 23/6

15:07-10:55

1 stop13h 48m

London Heathrow

Tue 14/7

12:55-23:39

1 stop16h 44m

£1,075
Fastest return journey

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 23/6

19:21-14:25

1 stop13h 04m

London Heathrow

Tue 14/7

12:55-23:39

1 stop16h 44m

£1,076

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Sat 18/7

15:08-10:55

1 stop13h 47m

London Heathrow

Sun 26/7

12:55-23:39

1 stop16h 44m

£1,137

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 23/6

15:07-13:30

2 stops16h 23m

London Heathrow

Tue 14/7

15:50-22:27

2 stops36h 37m

£1,140
Cheapest one-way

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Mon 21/9

10:04-10:55

1 stop18h 51m

£251

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Wed 5/8

09:59-10:55

1 stop18h 56m

£444
Fastest single journey

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Sat 30/5

15:07-10:55

1 stop13h 48m

£728

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Fri 12/6

15:07-10:55

1 stop13h 48m

£736

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 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 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?

    For a flight from Killeen to London Heathrow, you will be flying from 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 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Killeen Fort Hood Regional on a regular basis.

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

    For as low as £947, American Airlines can have you in London Heathrow Airport from Killeen in 13h 48m. There are 4862 mi between Killeen and London Heathrow Airport.

  • 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 holiday 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Killeen today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Killeen to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Heathrow from Killeen? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.