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

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

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

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

$62 CHEAP FLIGHTS from Arizona to St. Louis

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Flight Deals

Cheap Flights from Arizona 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 Arizona to St. Louis

Thu, Nov 19 - Mon, Nov 23

3:46 pm - 11:03 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

18h 17m1 stop Denver Intl

10:53 am - 12:42 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

14h 49m2 stops Chicago O'Hare Intl Denver Intl

$296Frontier

Sat, Nov 21 - Mon, Nov 30

7:34 pm - 7:54 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

11h 20m1 stop Dallas/Fort Worth

3:04 pm - 12:42 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

10h 38m1 stop Denver Intl

$298Frontier

Thu, Nov 19 - Mon, Nov 23

3:41 pm - 12:01 amTUS Tucson-STL Lambert-St Louis

7h 20m1 stop Chicago O'Hare Intl

5:29 pm - 12:11 amSTL Lambert-St Louis-TUS Tucson

7h 42m1 stop Chicago O'Hare Intl

$305American Airlines

Thu, Nov 19 - Mon, Nov 23

1:13 pm - 9:59 pmTUS Tucson-STL Lambert-St Louis

7h 46m1 stop Dallas/Fort Worth

8:47 am - 4:15 pmSTL Lambert-St Louis-TUS Tucson

8h 28m1 stop Dallas/Fort Worth

$305American Airlines

Thu, Nov 19 - Mon, Nov 23

5:50 pm - 12:40 amTUS Tucson-STL Lambert-St Louis

5h 50m1 stop Salt Lake City

7:13 am - 1:50 pmSTL Lambert-St Louis-TUS Tucson

7h 37m1 stop Atlanta Hartsfield-Jackson

$305Delta

Sat, Dec 5 - Tue, Dec 8

2:41 pm - 8:57 pmTUS Tucson-STL Lambert-St Louis

5h 16m1 stop Denver Intl

6:30 am - 3:37 pmSTL Lambert-St Louis-TUS Tucson

10h 07m2 stops Chicago O'Hare Intl Denver Intl

$310United Airlines

Sat, Dec 5 - Tue, Dec 8

7:35 am - 4:20 pmTUS Tucson-STL Lambert-St Louis

7h 45m2 stops Denver Intl Dallas Love Field

12:40 pm - 9:55 pmSTL Lambert-St Louis-TUS Tucson

10h 15m2 stops Kansas City Las Vegas Harry Reid Intl

$315Southwest

Thu, Nov 19 - Mon, Nov 23

6:00 am - 6:39 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

11h 39m2 stops Houston George Bush Intcntl Atlanta Hartsfield-Jackson

2:00 pm - 11:00 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

22h 00m3 stops Jonesboro Nashville Intl Dallas/Fort Worth

$335Multiple Airlines

Tue, Dec 1 - Fri, Dec 4

3:10 pm - 9:10 pmTUS Tucson-STL Lambert-St Louis

5h 00m1 stop Denver Intl

8:25 am - 8:25 pmSTL Lambert-St Louis-TUS Tucson

13h 00m2 stops Sacramento Intl Phoenix Sky Harbor Intl

$336Southwest

Mon, Dec 7 - Thu, Dec 10

2:50 pm - 8:57 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 07m1 stop Denver Intl

6:30 am - 1:48 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

8h 18m1 stop Chicago O'Hare Intl

$359United Airlines

Recent last minute flight deals from Arizona to St. Louis

Thu, Nov 5 - Wed, Nov 11

5:01 am - 11:19 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 18m1 stop Dallas/Fort Worth

4:18 pm - 8:54 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

5h 36m1 stop Denver Intl

$340Frontier

Thu, Nov 5 - Wed, Nov 11

5:01 am - 11:19 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 18m1 stop Dallas/Fort Worth

4:18 pm - 8:54 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

5h 36m1 stop Denver Intl

$340Frontier

Thu, Nov 5 - Mon, Nov 9

5:01 am - 11:19 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 18m1 stop Dallas/Fort Worth

7:59 pm - 12:42 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

5h 43m1 stop Denver Intl

$378Frontier

Thu, Nov 5 - Mon, Nov 9

5:01 am - 11:19 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 18m1 stop Dallas/Fort Worth

2:00 pm - 1:33 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

24h 33m3 stops Jonesboro Nashville Intl Las Vegas Harry Reid Intl

$553Multiple Airlines

Thu, Nov 5 - Sat, Nov 21

3:10 pm - 7:00 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 50mnonstop

9:45 pm - 12:15 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 30mnonstop

$571Southwest

Thu, Nov 5 - Sat, Nov 21

5:45 am - 9:30 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 45mnonstop

7:10 pm - 12:30 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

6h 20m1 stop Dallas Love Field

$581Southwest

Thu, Nov 5 - Tue, Nov 10

5:01 am - 11:19 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

5h 18m1 stop Dallas/Fort Worth

6:00 am - 7:40 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

14h 40m2 stops Seattle/Tacoma Intl San Diego

$615Multiple Airlines

Tue, Nov 3 - Mon, Nov 9

3:46 pm - 5:40 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

24h 54m3 stops Denver Intl Dallas/Fort Worth Atlanta Hartsfield-Jackson

2:00 pm - 1:33 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

24h 33m3 stops Jonesboro Nashville Intl Las Vegas Harry Reid Intl

$626Multiple Airlines

Thu, Nov 5 - Tue, Nov 10

9:30 am - 1:38 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 08mnonstop

2:28 pm - 4:55 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 27mnonstop

$701American Airlines

Thu, Nov 5 - Mon, Nov 9

9:30 am - 1:38 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 08mnonstop

2:28 pm - 4:55 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 27mnonstop

$701American Airlines

Recent direct flight deals from Arizona to St. Louis

Wed, Nov 18 - Tue, Nov 24

7:56 pm - 11:56 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 00mnonstop

2:17 pm - 4:50 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 33mnonstop

$339American Airlines

Sat, Dec 5 - Tue, Dec 8

7:56 pm - 11:52 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 56mnonstop

2:31 pm - 5:01 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 30mnonstop

$339American Airlines

Tue, Dec 15 - Thu, Dec 17

5:45 am - 9:35 amPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 50mnonstop

9:45 pm - 12:15 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 30mnonstop

$339Southwest

Tue, Dec 8 - Mon, Dec 14

6:15 pm - 10:10 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 55mnonstop

8:20 pm - 10:45 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 25mnonstop

$339Southwest

Tue, Dec 8 - Mon, Dec 14

9:45 am - 1:51 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 06mnonstop

7:55 am - 10:34 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 39mnonstop

$339American Airlines

Mon, Dec 7 - Wed, Dec 9

7:56 pm - 11:52 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 56mnonstop

7:55 am - 10:34 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 39mnonstop

$339American Airlines

Mon, Dec 7 - Wed, Dec 9

9:45 am - 1:51 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 06mnonstop

7:55 am - 10:34 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 39mnonstop

$339American Airlines

Thu, Nov 26 - Thu, Dec 3

9:30 am - 1:24 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 54mnonstop

2:23 pm - 4:51 pmSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 28mnonstop

$339American Airlines

Wed, Nov 25 - Wed, Dec 2

7:56 pm - 11:49 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

2h 53mnonstop

7:55 am - 10:34 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 39mnonstop

$339American Airlines

Thu, Dec 10 - Mon, Dec 14

9:30 am - 1:36 pmPHX Phoenix Sky Harbor Intl-STL Lambert-St Louis

3h 06mnonstop

7:55 am - 10:34 amSTL Lambert-St Louis-PHX Phoenix Sky Harbor Intl

3h 39mnonstop

$339American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$62

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 Phoenix to St. Louis

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