$338 Cheap Flights from Harlingen (HRL) to Killeen (GRK)

View $338 flight on Wed, Jun 4, 2025Opens in a new window

Popular airlines from Valley Intl. Airport (HRL) to Killeen, TX (GRK-Killeen-Fort Hood Regional)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Harlingen to Killeen (HRL-GRK)

Prices were available within the past 7 days and start at $338 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, May 5 - Tue, May 13
HRL
Harlingen
GRK
Killeen
$248 Roundtrip, found 3 days ago
$248
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 5 from Harlingen to Killeen, returning Tue, May 13, priced at $248 found 3 days ago
American Airlines
Fri, May 2 - Tue, May 6
HRL
Harlingen
GRK
Killeen
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, May 2 from Harlingen to Killeen, returning Tue, May 6, priced at $277 found 3 days ago
American Airlines
Mon, May 5 - Mon, May 12
HRL
Harlingen
GRK
Killeen
$368 Roundtrip, found 3 days ago
$368
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 5 from Harlingen to Killeen, returning Mon, May 12, priced at $368 found 3 days ago
American Airlines
Tue, May 6 - Wed, May 7
HRL
Harlingen
GRK
Killeen
$675 Roundtrip, found 3 days ago
$675
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, May 6 from Harlingen to Killeen, returning Wed, May 7, priced at $675 found 3 days ago
American Airlines
Mon, May 5 - Wed, May 7
HRL
Harlingen
GRK
Killeen
$700 Roundtrip, found 3 days ago
$700
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 5 from Harlingen to Killeen, returning Wed, May 7, priced at $700 found 3 days ago
American Airlines
Mon, May 5 - Thu, May 8
HRL
Harlingen
GRK
Killeen
$725 Roundtrip, found 3 days ago
$725
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 5 from Harlingen to Killeen, returning Thu, May 8, priced at $725 found 3 days ago

Frequently asked questions

How much does a flight from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK) cost?
Discover the latest flight deals from HRL to GRK by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from HRL to GRK?
The cheapest flights from HRL to GRK are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from HRL to GRK?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from HRL to GRK. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK)?
There aren’t any daily nonstop flights from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you’ll be soaring above the clouds before you know it.
What day of the week has the most flights from HRL to GRK?
You’ll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK)?
To avoid potential delays on the Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK) last-minute?
Booking your ticket from HRL to GRK right before your journey is usually more expensive. However, if you’re flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a HRL to GRK flight and hotel package?
Securing a HRL to GRK flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Valley Intl. Airport (HRL) to Killeen-Fort Hood Regional Airport (GRK)?
In most instances, you can cancel or modify your HRL to GRK flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline’s guidelines and fees on flight changes, or if you want more information, visit our Customer Service portal.
*Available to One Key members.