How does KAYAK find such low prices on flights from North America 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 North America to St. Louis.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from North America 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 North America 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 North America with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from North America 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 North America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$36 CHEAP FLIGHTS from North America to St. Louis

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Cheap Flights from North America to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from North America to St. Louis

Thu, Sep 17 - Mon, Sep 21

7:40 am - 9:35 am

DFW

STL

1h 55mnonstop

2:29 pm - 6:43 pm

STL

DFW

28h 14m

1 stop

$117Frontier

Tue, Sep 1 - Fri, Sep 4

2:35 pm - 4:31 pm

DFW

STL

1h 56mnonstop

6:17 pm - 4:00 pm

STL

DFW

21h 43m

1 stop

$119Frontier

Tue, Aug 25 - Tue, Sep 1

9:56 pm - 11:42 pm

DFW

STL

1h 46mnonstop

8:36 am - 10:34 am

STL

DFW

1h 58mnonstop

$163American Airlines

Tue, Sep 1 - Tue, Sep 8

4:15 pm - 6:05 pm

DFW

STL

1h 50mnonstop

6:36 am - 8:35 am

STL

DFW

1h 59mnonstop

$163American Airlines

Tue, Sep 1 - Mon, Sep 7

6:35 am - 9:35 am

DEN

STL

2h 00mnonstop

6:25 am - 7:40 am

STL

DEN

2h 15mnonstop

$172Southwest

Sat, Sep 5 - Tue, Sep 8

6:20 pm - 9:40 pm

DEN

STL

2h 20mnonstop

6:30 pm - 7:45 pm

STL

DEN

2h 15mnonstop

$172Southwest

Wed, Aug 26 - Mon, Aug 31

1:27 pm - 4:34 pm

DEN

STL

2h 07mnonstop

9:00 am - 10:31 am

STL

DEN

2h 31mnonstop

$172United Airlines

Tue, Sep 1 - Wed, Sep 9

8:31 am - 1:31 pm

DEN

STL

28h 00m

2 stops

8:10 pm - 9:39 pm

STL

DEN

2h 29mnonstop

$173Multiple Airlines

Wed, Sep 2 - Wed, Sep 9

8:31 am - 1:21 pm

DEN

STL

27h 50m

2 stops

8:10 pm - 9:39 pm

STL

DEN

2h 29mnonstop

$173Multiple Airlines

Thu, Dec 31 - Thu, Jan 7

1:55 pm - 5:00 pm

DEN

STL

2h 05mnonstop

1:30 pm - 3:00 pm

STL

DEN

2h 30mnonstop

$187United Airlines

Useful Info

Low season	January
High season	May
Cheapest flight	$36

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly with an average 5% increase in price.

Flight from Dallas to St. Louis

DeidreFlew with Alaska Airlines

PDX

STL

Jun 2026

At PDX, the Alaska Airlines section is large and confusing, especially for older people needing assistance. So arrive at the airport quite early. The staff at the airport also need to remember that the newly remodeled space is unfamiliar to many passengers.

WaleFlew with United Airlines

IAH

STL

Dec 2025

Make sure your electronics are charged before boarding, the plane doesn’t have power outlets

Verified travelerFlew with Alaska Airlines

SEA

STL

Jul 2025

Give yourself extra time. Love the self check in options.

LarryFlew with Southwest

LAX

STL

Apr 2024

For long flights on airlines built for short flights (SWA) anyone over 5’ 10” is going to get cramped. Consider an Economy Plus upgrade when available.

Verified travelerFlew with Alaska Airlines

SEA

STL

Feb 2024

Be sure to measure your wheels for carry on my luggage was the correct size but the wheels made it over so had to check my bag wasn't happy about that since you have to pay for checked should at least get one free.

How does KAYAK find such low prices on flights from North America 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 North America to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from North America to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from North America 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 North America 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 North America with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from North America 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 North America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

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Return flight deals

Information on the airport you'll fly into in St. Louis

St. Louis (STL)

$36 Find Cheap Flights from North America to St. Louis - Compare and Save

Cheap Flights from North America to St. Louis

Recent round-trip flight deals from North America to St. Louis

Recent one-way flight deals from North America to St. Louis

Recent last minute flight deals from North America to St. Louis

Recent direct flight deals from North America to St. Louis

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High season

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Flights from North America to St. Louis: the best tips from KAYAK users

FAQs for booking flights from North America to St. Louis

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

Information on the airport you'll fly into in St. Louis

Cabin class types available on flights to North America

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to North America

Choose which airport to fly into in St. Louis

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