$59 Cheap flights from Lambert-St. Louis Intl. to Sky Harbor Intl. (STL to PHX)

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Find The Best Dates To Fly from Lambert-St. Louis Intl. to Sky Harbor Intl.

Amazing STL to PHX Flight Deals

The cheapest flights to Sky Harbor Intl. found within the past 7 days were $118 round trip and $59 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Dec 7 - Tue, Dec 17
STL
St. Louis
PHX
Phoenix
$118 Roundtrip, found 2 hours ago
$118
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Dec 7 from St. Louis to Phoenix, returning Tue, Dec 17, priced at $118 found 2 hours ago
Sun, Jan 5 - Thu, Jan 9
STL
St. Louis
PHX
Phoenix
$138 Roundtrip, found 2 hours ago
$138
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sun, Jan 5 from St. Louis to Phoenix, returning Thu, Jan 9, priced at $138 found 2 hours ago
Mon, Dec 23 - Sun, Jan 5
STL
St. Louis
PHX
Phoenix
$158 Roundtrip, found 2 hours ago
$158
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Dec 23 from St. Louis to Phoenix, returning Sun, Jan 5, priced at $158 found 2 hours ago
Mon, Dec 23 - Fri, Dec 27
STL
St. Louis
PHX
Phoenix
$178 Roundtrip, found 2 hours ago
$178
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Dec 23 from St. Louis to Phoenix, returning Fri, Dec 27, priced at $178 found 2 hours ago
Wed, Dec 4 - Tue, Dec 17
STL
St. Louis
PHX
Phoenix
$198 Roundtrip, found 2 hours ago
$198
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Dec 4 from St. Louis to Phoenix, returning Tue, Dec 17, priced at $198 found 2 hours ago
Tue, Dec 17 - Sat, Dec 28
STL
St. Louis
PHX
Phoenix
$204 Roundtrip, found 12 hours ago
$204
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Tue, Dec 17 from St. Louis to Phoenix, returning Sat, Dec 28, priced at $204 found 12 hours ago
Fri, Dec 20 - Sat, Jan 4
STL
St. Louis
PHX
Phoenix
$208 Roundtrip, found 6 hours ago
$208
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Fri, Dec 20 from St. Louis to Phoenix, returning Sat, Jan 4, priced at $208 found 6 hours ago
Sun, Nov 24 - Thu, Dec 5
STL
St. Louis
PHX
Phoenix
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Nov 24 from St. Louis to Phoenix, returning Thu, Dec 5, priced at $213 found 1 day ago
Mon, Dec 23 - Thu, Jan 2
STL
St. Louis
PHX
Phoenix
$218 Roundtrip, found 2 hours ago
$218
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Dec 23 from St. Louis to Phoenix, returning Thu, Jan 2, priced at $218 found 2 hours ago
Wed, Jan 29 - Wed, Feb 12
STL
St. Louis
PHX
Phoenix
$222 Roundtrip, found 22 hours ago
$222
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Wed, Jan 29 from St. Louis to Phoenix, returning Wed, Feb 12, priced at $222 found 22 hours ago

Best Sky Harbor Intl. Flight and Hotel Packages

Sky Harbor Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
The Scottsdale Plaza Resort & Villas

The Scottsdale Plaza Resort & Villas

4 out of 5
Save 100% on your flight
per person
Jan 17 - Jan 20
found 1 day ago
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
Spur Cross Inn

Spur Cross Inn

3 out of 5
Save 100% on your flight
per person
Jan 11 - Jan 15
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to Phoenix (PHX)
Caesars Republic Scottsdale

Caesars Republic Scottsdale

4 out of 5
per person
Dec 26 - Dec 31
found 1 hour ago
Roundtrip non-stop flight included
St. Louis (STL) to Phoenix (PHX)
Arizona Biltmore, LXR Hotels & Resorts

Arizona Biltmore, LXR Hotels & Resorts

5 out of 5
Save 100% on your flight
per person
Jan 17 - Jan 20
found 1 day ago
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
Fairmont Scottsdale Princess

Fairmont Scottsdale Princess

5 out of 5
Save 100% on your flight
per person
Jan 11 - Jan 15
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to Phoenix (PHX)
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Frequently asked questions

Can I catch a flight from Lambert-St. Louis Intl. Airport (STL) to Sky Harbor Intl. Airport (PHX) right now?
It’s wise to learn about any quarantine requirements and travel advice reports in effect in your destination city. Be sure to visit our Covid-19 Travel Advisor for up-to-date info on catching a flight to Sky Harbor Intl. Airport (PHX).
Are there direct flights from Lambert-St. Louis Intl. Airport (STL) to PHX?
Southwest Airlines and American Airlines are a couple of the airlines that advertise direct flights from St. Louis Lambert International Airport to Phoenix Sky Harbor Airport. If you’re keen to get to your destination as quickly as possible, these are the options for you.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Phoenix Sky Harbor Airport, please visit our Customer Service Portal.
How long is the flight from St. Louis Lambert International Airport to Phoenix Sky Harbor Intl. Airport?
It usually takes 3 hours and 23 minutes to fly from Lambert Field to Phoenix Sky Harbor Intl. Airport. You’ll be in your seat for a while, so entertain yourself with a film or flick through the airway’s magazines.
What is the flight distance from STL to PHX?
The flight distance from St. Louis Lambert International Airport to PHX is 1,250 mi. Make sure to bring along a good book or a few puzzles to make your time in the air more enjoyable.
What airlines fly from Lambert Field to Sky Harbor Intl. Airport (PHX)?
If you’re planning a trip to Phoenix from St. Louis, you’ll find several airlines with direct flights. One of the top carriers is Southwest Airlines (WN), which offers 95 flights on this route every month. Another option is American Airlines (AA), which has 56 flights each month. The more airlines you weigh up, the more likely you are to snap up a superb deal.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with American Airlines, Southwest Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Lambert-St. Louis Intl.
Traveling To
Sky Harbor Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$118

Route Info

Flight path for flights from Lambert-St. Louis International Airport to Phoenix Sky Harbor International Airport


Origin:
STL - Lambert-St. Louis International Airport
Destination:
PHX - Phoenix Sky Harbor International Airport
Distance:
1,266.00 miles


Airlines & Aircraft Used on STL to PHX Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 737 all pax models
American Airlines
Boeing 737-300 pax
United Airlines
Aerospatiale/Alenia ATR 42-500
United Airlines
Airbus A320-100/200
United Airlines
Boeing 737-300 pax

Discover our best flights from St. Louis STL to Phoenix PHX. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to Phoenix PHX at the right price  

Airfares to Phoenix PHX from St. Louis STL currently cost between $118 and $222. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to Phoenix PHX 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to Phoenix PHX on Travelocity starting at $59. Prices and availability subject to change. Additional terms may apply. 

 

Get to Phoenix PHX from St. Louis STL quicker with direct flights. 

Get to Phoenix faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to PHX from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to Phoenix PHX

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to PHX from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to Phoenix PHX today 

If you’re flexible about when you travel, December is usually the cheapest month to fly from St. Louis STL to Phoenix PHX. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Phoenix PHX from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to PHX from STL have this option.  

 

Travel with confidence when you book flights to Phoenix PHX from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.