$83 Cheap flight deals from Phoenix (PHX) to Southwest Illinois (STL)
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This Weekend's Flight Deals from Phoenix to Southwest Illinois
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $83 One Way, $165 Round Trip from Phoenix to Southwest Illinois
Prices starting at $165 for return flights and $83 for one-way flights to Southwest Illinois were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Southwest Illinois economy flight packages
The Wildwood Hotel
Nov 19 - Nov 21
Phoenix (PHX) to St. Louis (STL)
St. Louis (STL) to Phoenix (PHX)
Reviewed on Oct 9, 2026
Spacious 3-Bedroom with King Bed
Nov 26 - Nov 29
Phoenix (PHX) to St. Louis (STL)
Reviewed on Feb 1, 2026
More About Flying To Southwest Illinois from Phoenix
Route Information for Flights from Phoenix to Southwest Illinois
Origin Airport IATA Code | PHX |
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Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Phoenix to Southwest Illinois
Looking for guaranteed low prices on Phoenix to Southwest Illinois flights? Orbitz is your source and much more. From cutting-edge mobile tools to great deals, Orbitz makes it easy to book your dream vacation.
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Earn frequent flyer miles or points on Orbitz flights from Phoenix to Southwest Illinois. When booking your Phoenix to Southwest Illinois flights, have your frequent flyer number on hand and add it where prompted. Your Orbitz account can store your number for future use, meaning you never miss out on your rewards.
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With the Orbitz mobile apps for Android and iPhone, you no longer have to be sitting at your desk to book Phoenix to Southwest Illinois flights. With a few easy clicks, you can book your flights, research hotel rooms, and check your flight status and other important flight information.
Easily Plan Your Vacation
Not only does Orbitz offer great prices on flights from Phoenix to Southwest Illinois, but you will also find fantastic deals on hotels, cruises, and vacation activities. Never miss out on that dream trip or waste hours waiting in long lines—you can buy tickets to attraction in advance with Orbitz to guarantee admission to your favorite places.
Best Deals At Your Fingertips
Orbitz combines low prices on Phoenix to Southwest Illinois flights with discounts on quality hotels. Using Orbitz’s Display Matrix, you can see all your options and savings easily. With our low price guarantee, you know you have the best deals at your fingertips.
Flights from Phoenix
- Phoenix to Chicago
- Phoenix to Seattle
- Phoenix to Los Angeles
- Phoenix to Dallas
- Phoenix to Denver
- Phoenix to Houston
- Phoenix to Orlando
- Phoenix to New York
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- Phoenix to London
- Phoenix to Vancouver
- Phoenix to Toronto
- Phoenix to Sacramento
- Phoenix to Cleveland
- Phoenix to San Francisco
- Phoenix to Columbus
- Phoenix to Charlotte
- Phoenix to St. Louis
- Phoenix to Washington
- Phoenix to Detroit
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.