$38 Cheap flight deals from Phoenix (PHX) to O'Fallon (STL)
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This Weekend's Flight Deals from Phoenix to O'Fallon
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 $38 One Way, $77 Round Trip from Phoenix to O'Fallon
Prices starting at $77 for return flights and $38 for one-way flights to O'Fallon were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
O'Fallon economy flight packages
Crowne Plaza St. Louis Airport by IHG
Dec 11 - Dec 14
Phoenix (PHX) to St. Louis (STL)
St. Louis (STL) to Phoenix (PHX)
Reviewed on Sep 16, 2025
Cobblestone Inn & Suites - Altamont
Dec 18 - Dec 21
Phoenix (PHX) to St. Louis (STL)
St. Louis (STL) to Phoenix (PHX)
Reviewed on Oct 18, 2025
Holiday Inn Express & Suites Vandalia by IHG
Dec 18 - Dec 21
Phoenix (PHX) to St. Louis (STL)
St. Louis (STL) to Phoenix (PHX)
Reviewed on Jul 19, 2025
More About Flying To O'Fallon from Phoenix
Route Information for Flights from Phoenix to O'Fallon
Origin Airport IATA Code | PHX |
|---|---|
Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Phoenix to O'Fallon
Orbitz gives you great deals on your flights from Phoenix to O'Fallon. If you also need a discount car rental or a cheap hotel room after you arrived at your destination, Orbitz has you covered.
We Offer Great Travel Deals and Discounts
When you book flights from Phoenix to O'Fallon with Orbitz for, you can be assured that you are getting the lowest price possible. Orbitz works constantly with our airline partners to ensure guaranteed low prices on Phoenix to O'Fallon flights for your trip—whether you are traveling for business or for fun with your family.
Enjoy Savings on Last-Minute Flights
If you are looking for a discount price on last-minute flights from Phoenix to O'Fallon, chances are that Orbitz can offer you a deal that will save you lots of money. Whether you just want to get away for the weekend or go on a vacation lasting weeks, Orbitz can help you find the best deals on Phoenix to O'Fallon flights that fit your budget and your itinerary for the perfect trip.
Full-Service Mobile Apps
Need more mobility when it comes to travel planning? Orbitz has easy-to-use mobile apps for iPhone, iPad, and Android, to help the traveler on the go. Not only can use the apps to find huge savings on Phoenix to O'Fallon flights wherever you are, but you can also check out and book discount hotel rooms too. The apps will also keep you up-to-date when it’s time to fly. Get easy access to your itinerary for flights from Phoenix to O'Fallon and review gate and baggage claim details too.
Flights from Phoenix
- Phoenix to Chicago
- Phoenix to Seattle
- Phoenix to Los Angeles
- Phoenix to Dallas
- Phoenix to Denver
- Phoenix to New York
- Phoenix to Houston
- Phoenix to Orlando
- Phoenix to Atlanta
- Phoenix to London
- Phoenix to San Francisco
- Phoenix to Detroit
- Phoenix to Vancouver
- Phoenix to Toronto
- Phoenix to Sacramento
- Phoenix to Cleveland
- Phoenix to Charlotte
- Phoenix to Washington
- Phoenix to Columbus
- Phoenix to St. Louis
O'Fallon Airports
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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.