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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 5/20. 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
Fri 6/7
Fri 6/14

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In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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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 6% increase in price.
Most popular time to fly with an average 9% 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, +60 more

ANA, Advanced Air, +61 more

Tuesday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Wednesday

ANA, Advanced Air, Aer Lingus, +59 more

ANA, Advanced Air, +60 more

Thursday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Friday

ANA, Advanced Air, Aer Lingus, +61 more

ANA, Advanced Air, +62 more

Saturday

ANA, Advanced Air, Aer Lingus, +57 more

ANA, Advanced Air, +58 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, +60 more

ANA, Advanced Air, +61 more

Tuesday

ANA, Advanced Air, Aer Lingus, +58 more

ANA, Advanced Air, +59 more

Wednesday

ANA, Advanced Air, Aer Lingus, +59 more

ANA, Advanced Air, +60 more

Thursday

ANA, Advanced Air, Aer Lingus, +60 more

ANA, Advanced Air, +61 more

Friday

ANA, Advanced Air, Aer Lingus, +61 more

ANA, Advanced Air, +62 more

Saturday

ANA, Advanced Air, Aer Lingus, +57 more

ANA, Advanced Air, +58 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

5/18Sat
nonstopFrontier
3h 17mSTL-PHX
5/20Mon
nonstopFrontier
2h 59mPHX-STL
$68
6/19Wed
nonstopFrontier
3h 18mSTL-PHX
6/22Sat
nonstopFrontier
2h 54mPHX-STL
$78
6/10Mon
1 stop
20h 45mSTL-PHX
6/15Sat
nonstop
2h 54mPHX-STL
$117
6/19Wed
1 stop
23h 05mSTL-PHX
6/22Sat
nonstop
2h 54mPHX-STL
$136
6/4Tue
nonstopAmerican Airlines
3h 24mSTL-PHX
6/11Tue
nonstopAmerican Airlines
2h 54mPHX-STL
$141
5/22Wed
nonstopAmerican Airlines
3h 24mSTL-PHX
5/26Sun
nonstopAmerican Airlines
3h 00mPHX-STL
$151
6/5Wed
1 stopSpirit Airlines
23h 05mSTL-PHX
6/9Sun
1 stopSpirit Airlines
24h 12mPHX-STL
$152
6/12Wed
1 stopSpirit Airlines
23h 05mSTL-PHX
6/18Tue
1 stopSpirit Airlines
24h 49mPHX-STL
$153
7/9Tue
1 stopDelta
7h 04mSTL-PHX
7/12Fri
1 stopDelta
7h 25mPHX-STL
$226
7/6Sat
1 stopDelta
7h 05mSTL-PHX
7/13Sat
1 stopDelta
5h 37mPHX-STL
$248

Search by stops

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Recent one-way flight deals

5/20Mon
nonstopFrontier
3h 17mSTL-PHX
$39
5/27Mon
nonstopFrontier
3h 17mSTL-PHX
$49
6/10Mon
nonstopAmerican Airlines
3h 17mSTL-PHX
$71
6/3Mon
1 stopSpirit Airlines
20h 27mSTL-PHX
$73
5/21Tue
1 stopSpirit Airlines
14h 39mSTL-PHX
$74
5/26Sun
1 stopUnited Airlines
7h 05mSTL-PHX
$76
5/21Tue
nonstopAmerican Airlines
3h 24mSTL-PHX
$81
5/27Mon
1 stopDelta
8h 09mSTL-PHX
$113
6/18Tue
1 stopDelta
8h 50mSGF-PHX
$169
8/6Tue
2 stopsUnited Airlines
18h 33mMCI-PHX
$212

Search by stops

Search by airline

Search by price

Last minute flights from Missouri to Phoenix

Last minute flight, train and bus deals

5/13Mon
multi-stop
20h 27mSTL-PHX
5/18Sat
nonstop
2h 59mPHX-STL
$107
5/13Mon
nonstopFrontier
3h 28mSTL-PHX
5/18Sat
nonstopFrontier
2h 59mPHX-STL
$128
5/11Sat
nonstopAmerican Airlines
3h 24mSTL-PHX
5/14Tue
nonstopAmerican Airlines
3h 00mPHX-STL
$251
5/13Mon
multi-stopDelta
6h 56mSTL-PHX
5/20Mon
multi-stopDelta
5h 15mPHX-STL
$268
5/11Sat
multi-stopDelta
8h 09mSTL-PHX
5/14Tue
multi-stopDelta
5h 15mPHX-STL
$280
5/9Thu
nonstopAmerican Airlines
3h 21mSTL-PHX
5/13Mon
nonstopAmerican Airlines
3h 00mPHX-STL
$281
5/11Sat
multi-stopUnited Airlines
8h 03mSTL-PHX
5/13Mon
multi-stopUnited Airlines
6h 24mPHX-STL
$325
5/11Sat
multi-stopSpirit Airlines
26h 12mSTL-PHX
5/15Wed
multi-stopSpirit Airlines
31h 41mPHX-STL
$373
5/13Mon
multi-stopSpirit Airlines
18h 04mSTL-PHX
5/18Sat
multi-stopSpirit Airlines
8h 25mPHX-STL
$386
5/9Thu
multi-stopUnited Airlines
5h 36mMCI-PHX
5/12Sun
multi-stopUnited Airlines
4h 41mPHX-MCI
$432

Search by stops

Search by airline

Search by price