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Cheap flights from Killeen to London Heathrow Airport from £735

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — LHR
23 Aug — 30 Aug1
1 adult

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 18 August 2025.

Round-trip from

£735
American Airlines
  • American Airlines
  • 2/12-1/1
  • 2 total stops
  • 27h 16m total
  • Killeen to London
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Find flight deals from Killeen to Heathrow

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 18 August 2025.

Tue 2/1216:10GRK - LHR
1 stop11h 50mAmerican Airlines
Thu 1/108:20LHR - GRK
1 stop21h 06mAmerican Airlines
Deal found 17/8£735
Mon 1/1216:10GRK - LHR
1 stop14h 05mAmerican Airlines
Fri 2/114:55LHR - GRK
1 stop14h 31mAmerican Airlines
Deal found 17/8£1,123

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 18 August 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

Tue 2/12

16:10-12:15

1 stop14h 05m

London Heathrow

Thu 1/1

08:20-15:31

1 stop13h 11m

£735

KilleenLondon

GRK - LHR

GRKLHR

Killeen Fort Hood Regional

Mon 1/12

16:10-12:15

1 stop14h 05m

London Heathrow

Fri 2/1

14:55-23:26

1 stop14h 31m

£1,123

Flights are sorted by cheapest return flights first.

Deals found on 16/8

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, January is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of £112). Flying from Killeen to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

  • 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, January is the cheapest month in which you can book a flight from Killeen to London Heathrow Airport (average of £112). Flying from Killeen to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Gatwick
Slough
Northampton
Deal
Luton
Wembley
Crawley
Ilford
Hayes
Ipswich
Southend-on-Sea
Winchester
Folkestone
Eastbourne
Maidstone
Watford
Chichester

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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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