United Flights from Phoenix (PHX) to St. Louis (STL)

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United Flights from PHX to STL

How much is a United flight from Phoenix (PHX) to St. Louis (STL)?

One-way flights start as little as and there are roundtrips available from . Get in! You can score some sweet deals with Wotif and United.

How many non-stop United flights from Phoenix (PHX) to St. Louis (STL) are there per day?

United flies flights direct every day between Phoenix (PHX) and St. Louis (STL).

How far is Phoenix (PHX) from St. Louis (STL)?

It’s from Phoenix (PHX) to St. Louis (STL).

What is the best airline to fly from Sky Harbor Intl.?

At Wotif, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from Sky Harbor Intl. with: . 

Can I change or cancel my United tickets from Phoenix to St. Louis on Wotif?

Change of plans? No worries! We’re right here to make things as easy as possible. Check out the United rules and restrictions in your itinerary. You can also use the No Change Fees filter to find flexible plane tickets for future trips. For more information on how to cancel or change your flight on Wotif, visit our customer service portal.

How do I find the best deal on United flights from Phoenix (PHX) to St. Louis (STL)?

Just review and compare all our awesome offers or enter your travel dates to see more terrific deals on United flights from Phoenix. And remember you can save even more when you bundle a hotel with your flight as part of a Wotif package. Sweet!

What’s a good way to get cheap United flight tickets from Phoenix to St. Louis?

We have loads of cheap flights, so just enter your travel dates to see what’s available. If you can be flexible on when you fly, you’ll find even more epic flight deals. So get booking!

What is the cheapest time of year to fly from Phoenix (PHX) to St. Louis (STL)?

The cheapest time of the year for a return trip is . One-way, the cheapest month to fly is . Check our deal cards for details.

How long does it take to fly from PHX to STL?

It typically takes hours to fly directly from Phoenix (PHX) to St. Louis (STL).

Epic Hotel in St. Louis

Renaissance St. Louis Airport Hotel

Renaissance St. Louis Airport Hotel

4 out of 5
9801 Natural Bridge Road, St. Louis, MO
"The room was clean and the staff was helpful."

Reviewed on 7 Sep. 2025

Renaissance St. Louis Airport Hotel
Hilton St. Louis Airport

Hilton St. Louis Airport

3.5 out of 5
10330 Natural Bridge Rd, St. Louis, MO
"I didn’t like there were no microwave or refrigerator in the room. Also, you have to pay to park on the property, each time you leave and return. Handicap parking was taken by non- disable patrons in the front of the business.It was reprted to the officer on duty but nothing was done."

Reviewed on 7 Sep. 2025

Hilton St. Louis Airport
Pear Tree Inn St. Louis Airport

Pear Tree Inn St. Louis Airport

2.5 out of 5
10810 Pear Tree Ln, St. Ann, MO
"Nice place to stay"

Reviewed on 9 Sep. 2025

Pear Tree Inn St. Louis Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

^Savings based on all package bookings made with Flight + Hotel on Wotif.co.nz from , as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.