GRK - STL

$429 Find Cheap Flights from Killeen to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Killeen to St. Louis departing on 12/28. 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, 0 bags

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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Everything you should know

Cheapest round-trip
Multiple Airlines
Wed 12/17
GRK - STL • multi-stop
Cheapest one-way
$480
American Airlines
Sun 12/28
GRK - STL • 1 stop
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Flight Deals
Booking Insights
Flight 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

Multiple Airlines Logo
GRK
-
STL
678 mimulti-stop
Multiple Airlines Logo
STL
-
GRK
678 mimulti-stop
Multiple Airlines
Booking Insights

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$480
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 $429 for a one-way 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.

Reviews of the 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 11049 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
8.0Crew
6.5Food
Airline reviews

Attendants were pleasant and the flight was smooth and relaxed.

10.0 ExcellentDawn C, Dec 2025
DFW - MIA
Read more American Airlines reviews

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

I have a gluten allergy so did have any food

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

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)