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

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

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

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

$67 CHEAP FLIGHTS from California to St. Louis

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Flight Deals

Cheap Flights from California 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 California to St. Louis

Fri, Dec 4 - Mon, Dec 7

11:30 am - 10:57 amONT Ontario-STL Lambert-St Louis

21h 27m1 stop Denver Intl

7:54 pm - 10:45 amSTL Lambert-St Louis-ONT Ontario

16h 51m1 stop Denver Intl

$138Frontier

Fri, Dec 11 - Mon, Dec 14

11:30 am - 10:57 amONT Ontario-STL Lambert-St Louis

21h 27m1 stop Denver Intl

7:54 pm - 12:20 amSTL Lambert-St Louis-ONT Ontario

6h 26m1 stop Denver Intl

$141Frontier

Tue, Nov 24 - Thu, Nov 26

5:15 pm - 1:45 amBUR Hollywood Burbank-STL Lambert-St Louis

6h 30m1 stop Las Vegas Harry Reid Intl

7:45 am - 11:45 amSTL Lambert-St Louis-BUR Hollywood Burbank

6h 00m1 stop Phoenix Sky Harbor Intl

$301Southwest

Sat, Dec 12 - Mon, Dec 14

12:41 pm - 9:28 pmBUR Hollywood Burbank-STL Lambert-St Louis

6h 47m1 stop Salt Lake City

7:08 am - 11:49 amSTL Lambert-St Louis-BUR Hollywood Burbank

6h 41m1 stop Salt Lake City

$301Delta

Sat, Dec 5 - Wed, Dec 9

7:00 am - 4:40 pmBUR Hollywood Burbank-STL Lambert-St Louis

7h 40m1 stop Seattle/Tacoma Intl

6:04 am - 1:32 pmSTL Lambert-St Louis-BUR Hollywood Burbank

9h 28m1 stop Seattle/Tacoma Intl

$301Alaska Airlines

Sat, Dec 12 - Mon, Dec 14

12:41 pm - 11:26 pmBUR Hollywood Burbank-STL Lambert-St Louis

8h 45m2 stops Salt Lake City Minneapolis St Paul

7:08 am - 11:49 amSTL Lambert-St Louis-BUR Hollywood Burbank

6h 41m1 stop Salt Lake City

$306Delta

Sat, Dec 12 - Mon, Dec 14

7:44 am - 4:45 pmSAN San Diego-STL Lambert-St Louis

7h 01m1 stop Chicago O'Hare Intl

7:55 am - 12:16 pmSTL Lambert-St Louis-SAN San Diego

6h 21m1 stop Phoenix Sky Harbor Intl

$309American Airlines

Tue, Nov 24 - Tue, Dec 1

10:45 pm - 10:34 amSAN San Diego-STL Lambert-St Louis

9h 49m1 stop Chicago O'Hare Intl

6:00 am - 10:23 amSTL Lambert-St Louis-SAN San Diego

6h 23m1 stop Dallas/Fort Worth

$316American Airlines

Wed, Dec 2 - Tue, Dec 8

11:55 am - 5:25 pmSAN San Diego-STL Lambert-St Louis

3h 30mnonstop

8:25 am - 10:20 amSTL Lambert-St Louis-SAN San Diego

3h 55mnonstop

$333Southwest

Sat, Dec 12 - Mon, Dec 14

7:00 am - 4:40 pmLGB Long Beach Municipal-STL Lambert-St Louis

7h 40m1 stop Seattle/Tacoma Intl

6:04 am - 2:28 pmSTL Lambert-St Louis-LGB Long Beach Municipal

10h 24m1 stop Seattle/Tacoma Intl

$357Alaska Airlines

Recent last minute flight deals from California to St. Louis

Wed, Nov 4 - Wed, Nov 11

6:19 pm - 12:33 pmSMF Sacramento Intl-STL Lambert-St Louis

16h 14m1 stop Las Vegas Harry Reid Intl

4:18 pm - 11:09 amSTL Lambert-St Louis-SMF Sacramento Intl

20h 51m1 stop Denver Intl

$343Frontier

Wed, Nov 4 - Sun, Nov 8

10:05 am - 12:33 pmLAX Los Angeles-STL Lambert-St Louis

24h 28m1 stop Las Vegas Harry Reid Intl

1:28 pm - 7:48 amSTL Lambert-St Louis-LAX Los Angeles

20h 20m1 stop Las Vegas Harry Reid Intl

$378Frontier

Tue, Nov 3 - Sat, Nov 7

3:13 pm - 11:33 pmSAN San Diego-STL Lambert-St Louis

6h 20m1 stop Dallas/Fort Worth

5:00 am - 10:18 amSTL Lambert-St Louis-SAN San Diego

7h 18m1 stop Dallas/Fort Worth

$411American Airlines

Tue, Nov 3 - Tue, Nov 10

11:29 am - 8:42 pmSMF Sacramento Intl-STL Lambert-St Louis

7h 13m1 stop Los Angeles

5:00 am - 12:54 pmSTL Lambert-St Louis-SMF Sacramento Intl

9h 54m1 stop Chicago O'Hare Intl

$415American Airlines

Tue, Nov 3 - Wed, Nov 11

7:20 am - 2:40 pmBUR Hollywood Burbank-STL Lambert-St Louis

5h 20m1 stop Las Vegas Harry Reid Intl

6:30 am - 10:30 amSTL Lambert-St Louis-BUR Hollywood Burbank

6h 00m1 stop Denver Intl

$422Southwest

Tue, Nov 3 - Wed, Nov 11

7:30 am - 8:59 pmBUR Hollywood Burbank-STL Lambert-St Louis

11h 29m2 stops San Francisco Denver Intl

8:50 am - 12:52 pmSTL Lambert-St Louis-BUR Hollywood Burbank

6h 02m1 stop Denver Intl

$427United Airlines

Tue, Nov 3 - Wed, Nov 11

9:39 am - 9:40 pmBUR Hollywood Burbank-STL Lambert-St Louis

10h 01m2 stops San Francisco Chicago O'Hare Intl

6:00 am - 12:52 pmSTL Lambert-St Louis-BUR Hollywood Burbank

8h 52m2 stops Chicago O'Hare Intl Denver Intl

$432United Airlines

Fri, Oct 30 - Sun, Nov 1

11:25 am - 7:05 pmBUR Hollywood Burbank-STL Lambert-St Louis

5h 40m1 stop Sacramento Intl

6:10 am - 10:05 amSTL Lambert-St Louis-BUR Hollywood Burbank

5h 55m1 stop Denver Intl

$467Southwest

Fri, Oct 30 - Mon, Nov 2

12:52 pm - 11:21 pmBUR Hollywood Burbank-STL Lambert-St Louis

8h 29m2 stops Salt Lake City Minneapolis St Paul

2:25 pm - 9:54 pmSTL Lambert-St Louis-BUR Hollywood Burbank

9h 29m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$477Delta

Sun, Nov 1 - Thu, Nov 5

9:43 am - 11:54 pmBUR Hollywood Burbank-STL Lambert-St Louis

12h 11m2 stops Salt Lake City Atlanta Hartsfield-Jackson

7:00 am - 4:06 pmSTL Lambert-St Louis-BUR Hollywood Burbank

11h 06m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$553Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$67

Best time to beat the crowds with an average 9% drop in price.

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

Flight from Ontario to St. Louis

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