Flights from St Louis to Phoenix, United States

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St Louis to Phoenix Last modified: Oct 25, 2023 13:28 -04:00

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How Much is a Flight from St Louis to Phoenix?

We have collected flight cost data from across the web for travel from St Louis to Phoenix, and have found the average flight price for this trip to be $145.

Where To Buy Cheap Flights from St Louis to Phoenix?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from St Louis to Phoenix based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from St Louis to Phoenix?

The chart below shows up-to-date information regarding how far in advance to book your flight from St Louis to Phoenix.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $652 $157
7-14 days $492 $128
14-21 days $338 $128
21-30 days $288 $128
30-60 days $288 $168
60-90 days $238 $168
90+ days $264 $193

Cheapest Day To Fly from St Louis to Phoenix

We've examined 214,139,184 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from St Louis to Phoenix is Sunday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$128$128$148$137$157$188$128

Compare Flight Prices from St Louis to Phoenix by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for St Louis to Phoenix flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
October St Louis Phoenix Frontier 10/31/23 11/7/23 1 $128
November St Louis Phoenix Frontier 11/1/23 11/14/23 1 $128
December St Louis Phoenix Frontier 12/1/23 12/5/23 1 $168
January St Louis Phoenix Frontier 1/8/24 1/11/24 1 $168
February St Louis Phoenix Spirit 2/3/24 2/6/24 1 $209
March St Louis Phoenix Major Airlines 3/13/24 3/20/24 1 $417
April St Louis Phoenix Major Airlines 4/2/24 4/2/24 1 $417
May St Louis Phoenix Major Airlines 5/7/24 5/11/24 1 $417

Cheap Last Minute Flights from St Louis to Phoenix

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from St Louis to Phoenix. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
22 23 24 25 26 27 28
$157
29 30 31 1 2 3 4
$157 $196
5 6 7 8 9 10 11
$196 $157
12 13 14 15 16 17 18
$157 $348
19 20 21 22 23 24 25
$348 $288
26 27 28 29 30 1 2
$288

Connecting Flights vs Direct Flights from St Louis to Phoenix

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from St Louis to Phoenix is $298.

The average price for direct flights from St Louis to Phoenix is $461.

The chart below shows up to date information regarding non-stop flights from St Louis to Phoenix.

Weekly Direct Flights from St Louis to Phoenix - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 2 2 2 2 2 2 2 03:00 09:35

One Way Flights vs Round Trip Flights from St Louis to Phoenix

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Phoenix. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Phoenix is $146.

The average price for round trip flights from St Louis to Phoenix is $298.

St Louis to Phoenix Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from St Louis to Phoenix?
Answer: The average St Louis to Phoenix flight time is 3 hours and 15 minutes.
Question: How far is Phoenix from St Louis?
Answer: The distance from St Louis to Phoenix is 1,258 miles (2,024 kilometers).
Question: How common are direct flights from St Louis to Phoenix?
Answer: There are 14 direct flights from St Louis to Phoenix.
Question: What are the most popular St Louis airlines for direct flights from St Louis to Phoenix?
Answer: American Airlines provides 100% of the non-stop flights between St Louis and Phoenix.

St Louis to Phoenix Airports

These are the major commercial airports we're currently monitoring in St Louis and Phoenix. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap Flights from St Louis to Phoenix