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$39 Find cheap flights from Missouri to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Phoenix departing on 8/26. 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
0 bags
Sat 7/13
Sat 7/20

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Good to know

Low season

July

High season

March

Cheapest flight

$39
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Phoenix Sky Harbor Airport

FAQs for booking Missouri to Phoenix flights

  • How does KAYAK find such low prices on flights from Missouri to Phoenix?

    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 Missouri to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Missouri 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 Missouri to Phoenix?

    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 Phoenix with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Phoenix?

    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 Phoenix from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Missouri to Phoenix?

Find which airlines fly direct from Missouri to Sky Harbor Intl, which days they fly and book direct flights.

Nonstop departures

Missouri to Phoenix Sky Harbor Intl

Monday

ANA, Advanced Air, Aer Lingus, +59 more

ANA, Advanced Air, +60 more

Tuesday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Wednesday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Thursday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Friday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Saturday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Sunday

ANA, Advanced Air, Aer Lingus, +61 more

ANA, Advanced Air, +62 more

See more direct flights

Nonstop returns

Phoenix Sky Harbor Intl to Missouri

Monday

ANA, Advanced Air, Aer Lingus, +59 more

ANA, Advanced Air, +60 more

Tuesday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Wednesday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Thursday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Friday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Saturday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Sunday

ANA, Advanced Air, Aer Lingus, +61 more

ANA, Advanced Air, +62 more

See more direct flights
See more direct flights

Book cheap flights from Missouri to Phoenix

Recent round-trip flight deals

8/10Sat
nonstopFrontier
3h 09mSTL-PHX
8/17Sat
nonstopFrontier
3h 01mPHX-STL
$58
8/5Mon
nonstopFrontier
3h 09mSTL-PHX
8/14Wed
nonstopFrontier
3h 01mPHX-STL
$68
9/4Wed
1 stopSpirit Airlines
6h 54mMCI-PHX
9/10Tue
1 stopSpirit Airlines
15h 12mPHX-MCI
$129
9/21Sat
1 stop
7h 52mSTL-PHX
9/28Sat
nonstop
3h 01mPHX-STL
$130
7/9Tue
nonstopAmerican Airlines
3h 14mSTL-PHX
7/13Sat
nonstopAmerican Airlines
3h 00mPHX-STL
$131
9/4Wed
1 stopSpirit Airlines
6h 54mMCI-PHX
9/10Tue
2 stopsSpirit Airlines
19h 06mPHX-MCI
$137
9/19Thu
1 stop
7h 52mSTL-PHX
9/23Mon
nonstop
3h 01mPHX-STL
$140
7/26Fri
nonstopAmerican Airlines
3h 14mSTL-PHX
7/31Wed
nonstopAmerican Airlines
3h 00mPHX-STL
$156
7/4Thu
1 stopUnited Airlines
5h 54mSTL-PHX
7/13Sat
1 stopUnited Airlines
7h 28mPHX-STL
$179
10/25Fri
1 stopUnited Airlines
6h 19mSTL-PHX
10/28Mon
1 stopUnited Airlines
7h 26mPHX-STL
$248

Search by stops

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Recent one-way flight deals

8/26Mon
nonstopFrontier
3h 18mSTL-PHX
$39
8/20Tue
1 stopFrontier
6h 38mMCI-PHX
$47
7/2Tue
nonstopAmerican Airlines
3h 17mSTL-PHX
$66
7/5Fri
1 stopUnited Airlines
5h 54mSTL-PHX
$71
7/11Thu
1 stopSpirit Airlines
5h 27mMCI-PHX
$72
9/10Tue
2 stopsSpirit Airlines
16h 06mMCI-PHX
$79
6/24Mon
1 stopUnited Airlines
7h 05mSTL-PHX
$96
7/3Wed
1 stopDelta
7h 05mSTL-PHX
$108
8/12Mon
nonstopAmerican Airlines
2h 46mMCI-PHX
$110
12/3Tue
1 stopDelta
6h 46mSTL-PHX
$124

Search by stops

Search by airline

Search by price

Last minute flights from Missouri to Phoenix

Last minute flight, train and bus deals

6/14Fri
nonstopFrontier
3h 17mSTL-PHX
6/21Fri
nonstopFrontier
2h 54mPHX-STL
$177
6/14Fri
multi-stopFrontier
14h 24mSTL-PHX
6/21Fri
nonstopFrontier
2h 54mPHX-STL
$197
6/17Mon
multi-stop
5h 50mMCI-PHX
6/19Wed
multi-stop
8h 32mPHX-MCI
$221
6/15Sat
multi-stopDelta
6h 44mSTL-PHX
6/17Mon
multi-stopDelta
5h 21mPHX-STL
$290
6/16Sun
nonstopAmerican Airlines
3h 20mSTL-PHX
6/17Mon
nonstopAmerican Airlines
2h 54mPHX-STL
$296
6/16Sun
multi-stopAmerican Airlines
7h 50mSTL-PHX
6/18Tue
nonstopAmerican Airlines
2h 57mPHX-STL
$306
6/16Sun
multi-stopDelta
6h 18mSTL-PHX
6/17Mon
multi-stopDelta
5h 21mPHX-STL
$315
6/17Mon
multi-stopSpirit Airlines
5h 50mMCI-PHX
6/19Wed
multi-stopSpirit Airlines
19h 10mPHX-MCI
$338
6/16Sun
multi-stop
5h 50mMCI-PHX
6/18Tue
multi-stop
25h 14mPHX-MCI
$341
6/17Mon
multi-stopSpirit Airlines
5h 50mMCI-PHX
6/19Wed
multi-stopSpirit Airlines
26h 59mPHX-MCI
$368

Search by stops

Search by airline

Search by price