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Cheap flights from Killeen to London Heathrow Airport from £398

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LHR
6 Aug — 13 Aug1
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 7 July 2026.

Tue 6/1015:16
GRK
-
LHR
1 stop15h 34m
American Airlines
Tue 20/1008:55
LHR
-
GRK
1 stop15h 38m
American Airlines
Deal found 3/7£674
Tue 6/1012:28
GRK
-
LHR
1 stop16h 27m
British Airways
Tue 20/1011:30
LHR
-
GRK
2 stops18h 06m
British Airways
Deal found 3/7£684
Tue 6/1015:16
GRK
-
LHR
1 stop11h 44m
American Airlines
Mon 19/1011:00
LHR
-
GRK
1 stop15h 52m
American Airlines
Deal found 3/7£712
Wed 14/1010:00
GRK
-
LHR
1 stop18h 55m
Multiple Airlines
Mon 19/1012:55
LHR
-
GRK
1 stop16h 41m
Multiple Airlines
Deal found 4/7£713
Thu 15/1010:00
GRK
-
LHR
1 stop18h 55m
Multiple Airlines
Fri 23/1012:55
LHR
-
GRK
1 stop26h 28m
Multiple Airlines
Deal found 6/7£716
Mon 2/1118:49
GRK
-
LHR
1 stop11h 26m
British Airways
Mon 16/1112:10
LHR
-
GRK
2 stops17h 33m
British Airways
Deal found 3/7£743
Tue 6/1015:16
GRK
-
LHR
2 stops16h 39m
British Airways
Mon 19/1013:35
LHR
-
GRK
2 stops16h 01m
British Airways
Deal found 3/7£744
Tue 24/1111:52
GRK
-
LHR
1 stop12h 58m
American Airlines
Mon 30/1114:45
LHR
-
GRK
1 stop14h 58m
American Airlines
Deal found 2/7£746
Thu 19/1116:10
GRK
-
LHR
1 stop14h 05m
Multiple Airlines
Sat 5/1214:45
LHR
-
GRK
1 stop12h 48m
Multiple Airlines
Deal found 3/7£749
Fri 14/812:37
GRK
-
LHR
1 stop14h 23m
American Airlines
Wed 26/808:55
LHR
-
GRK
1 stop18h 04m
American Airlines
Deal found 3/7£755

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 7 July 2026.

Round-trip from

£674

One-way from

£398
American Airlines
  • American Airlines
  • 6/10-20/10
  • 2 total stops
  • 31h 12m total
  • Killeen to London
Search Deals
28/8
  • 28/8
  • 1 total stop
  • 13h 50m 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 7 July 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

Tue 6/10

15:16-13:55

2 stops16h 39m

London Heathrow

Tue 20/10

11:30-23:36

2 stops18h 06m

£687

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Wed 14/10

10:00-10:55

1 stop18h 55m

London Heathrow

Mon 19/10

12:55-23:36

1 stop16h 41m

£713

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Thu 15/10

10:00-10:55

1 stop18h 55m

London Heathrow

Fri 23/10

12:55-09:23

1 stop26h 28m

£716

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 24/11

11:52-06:50

1 stop12h 58m

London Heathrow

Mon 30/11

14:45-23:43

1 stop14h 58m

£746
Fastest return journey

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Thu 19/11

16:10-12:15

1 stop14h 05m

London Heathrow

Sat 5/12

14:45-21:33

1 stop12h 48m

£749

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Tue 24/11

16:10-12:15

1 stop14h 05m

London Heathrow

Mon 30/11

12:10-23:43

2 stops17h 33m

£807

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Mon 23/11

11:52-06:50

1 stop12h 58m

London Heathrow

Sun 29/11

14:45-23:43

1 stop14h 58m

£810
Cheapest one-way
Fastest single journey

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Fri 28/8

15:05-10:55

1 stop13h 50m

£398

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Sat 29/8

15:05-06:20

1 stop33h 15m

£438

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Wed 5/8

09:59-10:55

1 stop18h 56m

£454

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 13 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 £746, British Airways can have you in London Heathrow Airport from Killeen in 12h 58m. There are 4862 mi between Killeen and London Heathrow Airport. This flight may include one or multiple stops.

  • 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Croydon
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Eastbourne
Swindon
Poole
Southall
Aylesbury
Romford

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

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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?

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