$77 Cheap flight deals from St. Louis (STL) to Union Pier (RFD)
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This Weekend's Flight Deals from St. Louis to Union Pier
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 $77 One Way, $138 Round Trip from St. Louis to Union Pier
Prices starting at $138 for return flights and $77 for one-way flights to Union Pier were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Union Pier economy flight packages
Hotel Riu Plaza Chicago
Feb 23 - Feb 25
St. Louis (STL) to Chicago (ORD)
Reviewed on Jan 14, 2026
Fairmont Chicago at Millennium Park
Feb 23 - Feb 25
St. Louis (STL) to Chicago (ORD)
Reviewed on Nov 5, 2025
Pendry Chicago
Feb 23 - Feb 25
St. Louis (STL) to Chicago (ORD)
Reviewed on Jul 5, 2024
More About Flying To Union Pier from St. Louis
Route Information for Flights from St. Louis to Union Pier
Origin Airport IATA Code | STL |
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Destination Airport IATA Code | RFD |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
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St. Louis to Union Pier
If it is not enough that we have guaranteed low prices for St. Louis to Union Pier flights, Orbitz can also integrate your hotel and car rental needs into the package. This ensures your trip goes smoothly and you get the best possible bargain.
Save Big On Hotels With Our Summer Hotel Sale When Booking St. Louis to Union Pier Flights
We will get you bargain air tickets for St. Louis to Union Pier flights and can save you even more with our Summer Hotel sale. You can get a discount of up to 40% when you book a hotel along with your bargain flight from Orbitz.
If You Are Going To The Beach We Can Save You Even More
When you are arranging budget flights from St. Louis to Union Pier, you can save even more by staying near a beach. Orbitz Beach Hotel Deals will allow you to get as much as half off the price of an already cheap hotel. Saving money has never been this fun.
Plan A Spontaneous Trip Using Our Top Hotel and Flight Destinations
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Use Orbitz.com For Up To The Minute Hot Deals
Budget deals on flights from St. Louis to Union Pier are constantly changing. You can get up-to-the-minute updates on the hottest deals on discount tickets and hotels on our website.
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St. Louis Airports
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.