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Cheap flights from London Heathrow Airport to Killeen from £625

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GRK
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 November 2025.

Round-trip from

£808

One-way from

£625
American Airlines
  • American Airlines
  • 20/2-24/2
  • 3 total stops
  • 62h 04m total
  • London to Killeen
Search Deals
American Airlines
  • American Airlines
  • 29/12
  • 2 total stops
  • 20h 46m total
  • London to Killeen
Search Deals

Find 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 6 November 2025.

Wed 12/1111:55LHR - GRK
1 stop15h 11mAmerican Airlines
Thu 20/1111:52GRK - LHR
1 stop14h 43mAmerican Airlines
Deal found 4/11£1,095

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 6 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Killeen that are best for you.

Fly from

Heathrow

Fly to

Killeen

Route

Depart

Return

Price

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Fri 20/2

10:20-18:09

2 stops37h 49m

Killeen Fort Hood Regional

Tue 24/2

06:00-12:15

1 stop24h 15m

£808

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sat 28/3

11:55-19:42

1 stop12h 47m

Killeen Fort Hood Regional

Sat 11/4

05:23-06:20

1 stop18h 57m

£1,492

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Mon 29/12

19:05-09:51

2 stops20h 46m

£625

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Wed 31/12

15:00-17:56

1 stop32h 56m

£688

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Tue 30/12

15:00-11:27

1 stop26h 27m

£688

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Sun 28/12

10:05-20:33

1 stop16h 28m

£702

LondonKilleen

LHR - GRK

LHRGRK

London Heathrow

Thu 1/1

09:45-22:29

2 stops18h 44m

£736

Flights are sorted by cheapest return flights first.

Deals found on 5/11

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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Killeen (average of £453). Flying from London Heathrow Airport to Killeen in July is currently the most expensive (average of £562). 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 37h 49m. 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Killeen (average of £453). Flying from London Heathrow Airport to Killeen in July is currently the most expensive (average of £562). 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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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 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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