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Cheap flights from Phoenix to St. Louis
Round-trip
Economy
Flight information for Phoenix to St. Louis
(PHX to STL)
Find info about flight duration, direct flights, and airports for your flight from Phoenix to St. Louis
| Best Price Found | $227 | The best flight deal from Phoenix to St. Louis found on momondo in the last 72 hours is $227 |
| Fastest flight time | 2h 53m | The fastest flight from Phoenix to St. Louis takes 2h 53m |
| Direct flights | None | There are no direct flights from Phoenix to St. Louis. Popular non-direct route for this connection is Phoenix Sky Harbor Intl - Lambert-St Louis. |
| Airports in St. Louis | 1 airport | There is 1 airport near St. Louis: Lambert-St Louis (STL) |
How to get the cheapest flight ticket from Phoenix to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from Phoenix to St. Louis?
August
The cheapest time of year to fly to St. Louis from Phoenix is August. Most expensive is December
What is the cheapest day to depart Phoenix for St. Louis?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly from Phoenix to St. Louis?
in the evening
Phoenix to St. Louis flights are approximately 29% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to St. Louis from Phoenix?
Sun Country Air
Sun Country Air, Frontier, and United Airlines are the most popular carriers operating from Phoenix to St. Louis
What is the cheapest Phoenix to St. Louis flight route?
Phoenix Sky Harbor Intl - Lambert-St Louis
Fly from Phoenix Sky Harbor Intl to Lambert-St Louis for the best Phoenix - St. Louis flight prices
PHX
Phoenix Sky Harbor Intl
STL
Lambert-St Louis
How far in advance should you book Phoenix to St. Louis flights?
53 days before
The cheapest time to buy a flight from Phoenix to St. Louis is approximately 53 days to departure
60
Days before departure
0
Easily compare round-trip flights from Phoenix to St. Louis
Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Phoenix to St. Louis by changing tabs
Frontier![Frontier]()
Jul 27![Frontier]()
Aug 5
PHX4:56 pmPhoenix Sky Harbor Intl
7h 22m
1 stop
STL12:18 amLambert-St Louis
STL5:39 amLambert-St Louis
5h 40m
1 stop
PHX11:19 amPhoenix Sky Harbor Intl
Frontier![Frontier]()
Jul 27![Frontier]()
Aug 3
PHX4:56 pmPhoenix Sky Harbor Intl
7h 22m
1 stop
STL12:18 amLambert-St Louis
STL11:26 amLambert-St Louis
9h 00m
1 stop
PHX8:26 pmPhoenix Sky Harbor Intl
Find the cheapest one-way flights from Phoenix to St. Louis
If you're looking for one-way flights from Phoenix to St. Louis, view some of our deals below provided by Frontier
Best airlines flying from Phoenix to St. Louis
Compare and see reviews for airlines that fly from Phoenix to St. Louis with momondo
AirlineFree CancellationPrice
PriceFrom $61
Free Cancellation
Reviews
Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!
1 / 10
PriceFrom $71
Free Cancellation
Reviews
Pros: Quick boarding. Inexpensive ticket. Direct flight.
Cons: Crew walked thru cabin at least 5 times collecting garbage, but could not hand out sealed snack or sealed water. People sat should-to-shoulder - No buffer space, but asked to leave the plane with 6 foot intervals???? This airline picks and chooses their Covid precautions. Quick and inexpensive flight, if you don’t mind the rest.
1 / 3
PriceFrom $106
Free Cancellation
Reviews
Pros: New plane but uncomfortable
Cons: Get beverage and snacks.
1 / 10
PriceFrom $145
Free Cancellation
Reviews
Pros: The crew was very kind and friendly at all times, very professional and approachable.
Cons: The seats are not comfortable.
1 / 10
PriceFrom $150
Free Cancellation
Reviews
Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.
1 / 10
PriceFrom $173
Free Cancellation
Reviews
Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations
Cons: I believe this airlines should have figured the answer to this question by now.
1 / 10
PriceFrom $290
Free Cancellation
Reviews
Pros: The plane was new and the seats were nice.
1 / 10
Are airlines flying from Phoenix Sky Harbor Intl to Lambert-St Louis offering flexible cancellation due to COVID-19?
Due to the global impact of COVID-19, some of our airline partners operating flights from Phoenix Sky Harbor Intl to Lambert-St Louis, such as American Airlines, Frontier, and Sun Country Air may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.
How far is Phoenix Sky Harbor Intl to Lambert-St Louis by plane?
The straight-line distance from Phoenix Sky Harbor Intl to Lambert-St Louis is 1269.1 mi. 5h 25m is a normal flight duration for this route.
Can I fly to Lambert-St Louis from Phoenix Sky Harbor Intl right now?
Information is based on travel restrictions for travel to Lambert-St Louis within the United States
Most visitors from Phoenix Sky Harbor Intl need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.
COVID-19 testing requirements
Visitors from Phoenix Sky Harbor Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Phoenix Sky Harbor Intl are not required to quarantine after entering Lambert-St Louis.
Most visitors from Phoenix Sky Harbor Intl need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.
COVID-19 testing requirements
Visitors from Phoenix Sky Harbor Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.
Quarantine requirements
Visitors from Phoenix Sky Harbor Intl are not required to quarantine after entering Lambert-St Louis.
Can I fly back to Phoenix Sky Harbor Intl from Lambert-St Louis?
Returning to Phoenix Sky Harbor Intl from Lambert-St Louis
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Phoenix Sky Harbor Intl.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Phoenix Sky Harbor Intl.
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Phoenix Sky Harbor Intl.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Phoenix Sky Harbor Intl.