GRK - STL

$335 Find Cheap Flights from Killeen to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Killeen to St. Louis departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to St. Louis, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Killeen to St. Louis (GRK-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Killeen to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Killeen to St. Louis

Fri, Jul 18 - Sat, Aug 2
American Airlines Logo
4:29 pm - 10:57 pmGRK-STL
6h 28m1 stop
American Airlines Logo
7:38 pm - 11:26 pmSTL-GRK
3h 48m1 stop
$335American Airlines
Find Deal
Tue, Jul 8 - Tue, Jul 15
American Airlines Logo
12:37 pm - 11:51 pmGRK-STL
11h 14m2 stops
American Airlines Logo
7:38 pm - 11:26 pmSTL-GRK
3h 48m1 stop
$340American Airlines
Find Deal
Tue, Jul 8 - Tue, Jul 15
American Airlines Logo
12:37 pm - 11:51 pmGRK-STL
11h 14m2 stops
American Airlines Logo
7:23 am - 3:59 pmSTL-GRK
8h 36m2 stops
$345American Airlines
Find Deal
Tue, Jul 8 - Tue, Jul 15
American Airlines Logo
4:29 pm - 8:31 pmGRK-STL
4h 02m1 stop
American Airlines Logo
10:08 am - 3:59 pmSTL-GRK
5h 51m1 stop
$383American Airlines
Find Deal
Fri, Jul 18 - Sat, Aug 2
American Airlines Logo
12:37 pm - 6:33 pmGRK-STL
5h 56m1 stop
American Airlines Logo
7:23 am - 3:59 pmSTL-GRK
8h 36m2 stops
$388American Airlines
Find Deal
Fri, Jul 18 - Sat, Aug 2
American Airlines Logo
4:29 pm - 11:51 pmGRK-STL
7h 22m2 stops
American Airlines Logo
7:23 am - 3:59 pmSTL-GRK
8h 36m2 stops
$646American Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Killeen to St. Louis flights

Get data-powered insights and trends into flights from Killeen to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Killeen to St. Louis?

The average price of all round-trip flights from Killeen to St. Louis clicked on KAYAK for each day over the last 12 months.

For Killeen to St. Louis, Saturday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from St. Louis back to Killeen, the best deals are generally found on Thursday, with Sunday being the most expensive.

Find deals

Good to know

Cheapest flight$335
Flight from Killeen to St. Louis

When to book flights from Killeen to St. Louis

Are your dates flexible? Find out the best times to travel from Killeen to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Killeen to St. Louis

  • What is the cheapest flight from Killeen to St. Louis?

    In the last 3 days, the lowest price for a flight from Killeen to St. Louis was $335 for a round-trip ticket.

  • Do I need a passport to fly between Killeen and St. Louis?

    A passport is not required to fly from Killeen to St. Louis.

  • Which airports will I be using when flying from Killeen to St. Louis?

    Killeen airport is called Killeen Fort Hood Regional and the only airport in St. Louis is Lambert-St Louis.

  • Which aircraft models fly most regularly from Killeen to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Killeen to St. Louis?

    oneworld is the only airline alliance operating flights between Killeen and St. Louis.

  • How does KAYAK find such low prices on flights from Killeen to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Killeen to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Killeen to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Killeen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Killeen to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Killeen with another airline. Booking your flights between Killeen and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Killeen to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Killeen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Killeen to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Killeen to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Killeen to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.5Boarding
7.2Comfort
6.9Entertainment
6.5Food
8.0Crew
Airline reviews

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

2.0 Mediocrechad, Jun 2025AUS - DFW
Read more American Airlines reviews

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

At the beginning of the flight there was some turbulence and the announcement was made that there would be no beverage service. The turbulence only last about 5 minutes then it was smooth sailing. I noticed that first class got their service, but the rest of us did not.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Update.us on flight information in a more timely manner. Don’t say we are boarding on time ten minutes before the boarding time when the aircraft isn’t arriving for another forty minutes.

Took off on time and successfully avoided weather that looked to be a problem along the way

I liked everything. Except that my neck was hurting on the seat. I couldn't sleep.

We were delayed Al ost / hours after boarding so that maintenance had to add oil to the engines. Then the oil they grabbed had been left out in the Dallas record cold and was frozen. They had to go back to the hanger and grab some that was not frozen.

They changed my seat from one that I had paid for as an upgrade to a regular seat at the last minute.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

Everything was on time, we arrived early, everything worked well.

Everything you need to know for your flight from Killeen to St. Louis

Information on your arrival and departure airports

Killeen (GRK)
St. Louis (STL)

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