$34 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 $68 round trip and $34 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 11 - Sat, May 18
STL
St. Louis
PHX
Phoenix
$68 Roundtrip, just found
$68
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 11 from St. Louis to Phoenix, returning Sat, May 18, priced at $68 just found
Wed, May 15 - Mon, May 20
STL
St. Louis
PHX
Phoenix
$78 Roundtrip, found 2 hours ago
$78
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, May 15 from St. Louis to Phoenix, returning Mon, May 20, priced at $78 found 2 hours ago
Fri, May 10 - Sat, May 11
STL
St. Louis
PHX
Phoenix
$84 Roundtrip, found 7 hours ago
$84
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Fri, May 10 from St. Louis to Phoenix, returning Sat, May 11, priced at $84 found 7 hours ago
Sat, Jul 13 - Sat, Jul 20
STL
St. Louis
PHX
Phoenix
$88 Roundtrip, found 3 hours ago
$88
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Jul 13 from St. Louis to Phoenix, returning Sat, Jul 20, priced at $88 found 3 hours ago
Sat, May 18 - Fri, May 24
STL
St. Louis
PHX
Phoenix
$89 Roundtrip, found 7 hours ago
$89
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, May 18 from St. Louis to Phoenix, returning Fri, May 24, priced at $89 found 7 hours ago
Tue, May 14 - Wed, May 15
STL
St. Louis
PHX
Phoenix
$97 Roundtrip, found 5 days ago
$97
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, May 14 from St. Louis to Phoenix, returning Wed, May 15, priced at $97 found 5 days ago
Wed, May 22 - Wed, May 29
STL
St. Louis
PHX
Phoenix
$98 Roundtrip, found 12 hours ago
$98
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Wed, May 22 from St. Louis to Phoenix, returning Wed, May 29, priced at $98 found 12 hours ago
Fri, May 17 - Fri, May 24
STL
St. Louis
PHX
Phoenix
$99 Roundtrip, found 7 hours ago
$99
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Fri, May 17 from St. Louis to Phoenix, returning Fri, May 24, priced at $99 found 7 hours ago
Sat, Jul 6 - Wed, Jul 10
STL
St. Louis
PHX
Phoenix
$108 Roundtrip, found 1 hour ago
$108
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jul 6 from St. Louis to Phoenix, returning Wed, Jul 10, priced at $108 found 1 hour ago
Fri, May 31 - Fri, Jun 21
STL
St. Louis
PHX
Phoenix
$110 Roundtrip, found 8 hours ago
$110
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, May 31 from St. Louis to Phoenix, returning Fri, Jun 21, priced at $110 found 8 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.
Hilton Phoenix Tapatio Cliffs Resort

Hilton Phoenix Tapatio Cliffs Resort

4 out of 5
per person
Jun 14 - Jun 17
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
The Scott Resort & Spa

The Scott Resort & Spa

4.5 out of 5
per person
Jun 14 - Jun 17
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
DoubleTree Suites by Hilton Phoenix

DoubleTree Suites by Hilton Phoenix

4 out of 5
per person
Jun 14 - Jun 17
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
The Scottsdale Resort & Spa, Curio Collection by Hilton

The Scottsdale Resort & Spa, Curio Collection by Hilton

4 out of 5
per person
Jun 14 - Jun 17
Roundtrip flight included
St. Louis (STL) to Phoenix (PHX)
Arizona Grand Resort & Spa

Arizona Grand Resort & Spa

4 out of 5
per person
Jun 14 - Jun 17
Roundtrip 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
0 hours 45 mins
Earliest Departure Time
5:45AM MST
Latest Departure Time
6:40PM MST
Lowest Flight Price
$68

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 $68 and $110. 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 $34. 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 0 hour(s) 45 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, May 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.