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Cheap flights from Killeen to London Heathrow Airport from £523

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LHR
21 nov. — 28 nov.1
1 adult
1 adult, Economy

Find 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 22 octubre 2025.

dom. 7/1211:52GRK - LHR
1 stop12h 58mAmerican Airlines
dom. 14/1216:30LHR - GRK
1 stop13h 09mAmerican Airlines
Deal found 22/10£523
mar. 2/1210:34GRK - LHR
1 stop16h 01mAmerican Airlines
jue. 1/108:20LHR - GRK
1 stop20h 09mAmerican Airlines
Deal found 22/10£706
mié. 24/1210:21GRK - LHR
2 stops14h 29mAmerican Airlines
mié. 7/110:35LHR - GRK
2 stops18h 08mAmerican Airlines
Deal found 20/10£832
sáb. 27/1206:00GRK - LHR
1 stop22h 00mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£874
vie. 26/1218:32GRK - LHR
1 stop30h 18mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£878
dom. 28/1218:32GRK - LHR
1 stop30h 18mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£904
jue. 25/1211:57GRK - LHR
1 stop16h 03mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£912
mar. 23/1218:32GRK - LHR
1 stop11h 08mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£953
lun. 22/1218:32GRK - LHR
1 stop30h 18mAmerican Airlines
mié. 7/108:20LHR - GRK
1 stop13h 47mAmerican Airlines
Deal found 20/10£956

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 22 octubre 2025.

Round-trip from

£523
American Airlines
  • American Airlines
  • 7/12-14/12
  • 2 total stops
  • 26h 07m 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 22 octubre 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

dom. 7/12

11:52-06:50

1 stop12h 58m

London Heathrow

dom. 14/12

16:30-23:39

1 stop13h 09m

£523

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

mar. 2/12

10:34-08:35

1 stop16h 01m

London Heathrow

jue. 1/1

08:20-22:29

1 stop20h 09m

£706

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

vie. 27/3

12:45-08:15

1 stop14h 30m

London Heathrow

mar. 31/3

08:15-09:08

2 stops30h 53m

£734

Flights are sorted by cheapest return flights first.

Deals found on 22/10

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.

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, October is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of £422). Flying from Killeen to London Heathrow Airport in June is currently the most expensive (average of £650). 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?

    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 £523, American Airlines can have you in London Heathrow Airport from Killeen in 12h 58m. 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.

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

    Currently, October is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of £422). Flying from Killeen to London Heathrow Airport in June is currently the most expensive (average of £650). 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

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
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Wembley
Ilford
Deal
Hayes
Colchester
Watford
Crawley
Winchester
Swindon
Chichester
Romford
Ipswich
Bedford

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

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