CA $206 Cheap Flights from Phoenix (PHX) to St. Louis (STL)

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Cheap flights from Phoenix (PHX) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $206 for one-way flights and CA $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
American Airlines
Delta
Delta
American Airlines
Delta
American Airlines
Alaska Airlines

Frequently asked questions

How much is a flight from Sky Harbor Intl. Airport (PHX) to Lambert Field?
Start packing your bags, because round-trip flights between Phoenix Sky Harbor Intl. Airport and STL start from CA $428. That’s based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PHX to Lambert Field?
The majority of flights can be canceled online, but every air carrier has different terms and conditions. If you do have to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from Phoenix Sky Harbor Airport to St. Louis Lambert International Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for PHX to St. Louis Lambert International Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Phoenix Sky Harbor Intl. Airport to Lambert Field?
It’s around 2,000 kilometers from Phoenix to St. Louis, so you’ll be flying for a while. Keep yourself entertained with things like playing cards (if you’re traveling with friends) or a thrilling novel.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to Lambert-St. Louis Intl. Airport (STL)?
Many people opt to fly with Southwest Airlines (WN) from Phoenix Sky Harbor Intl. Airport to St. Louis Lambert International Airport. It offers 95 flights a month, so you can pick a flight time that works for you. Operating 60 flights every month on this route, American Airlines (AA) is another top pick.
Are PHX to STL flight tickets cheaper when they're purchased at the last minute?
Booking your trip from PHX to STL at the last minute could be your ticket to a great deal. However, you might miss out on a flight altogether! If you’d prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn’t released tickets yet, check back regularly as deals are updated all the time on Expedia.
*Available to Expedia members.