
$55 Cheap flight deals from Dallas (DFW) to O'Fallon (STL)
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This Weekend's Flight Deals from Dallas 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 $55 One Way, $90 Round Trip from Dallas to O'Fallon
Prices starting at $90 for return flights and $55 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

The Knight Center at Washington University
Jan 1 - Jan 3
Dallas (DFW) to St. Louis (STL)
St. Louis (STL) to Dallas (DFW)
Reviewed on Sep 15, 2025

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Jan 1 - Jan 3
Dallas (DFW) to St. Louis (STL)
St. Louis (STL) to Dallas (DFW)
Reviewed on Sep 9, 2024

Riverside Inn Hannibal
Dec 12 - Dec 14
Dallas (DFW) to St. Louis (STL)
Reviewed on Jun 18, 2023
More About Flying To O'Fallon from Dallas
Route Information for Flights from Dallas to O'Fallon
Origin Airport IATA Code | DFW |
|---|---|
Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Dallas to O'Fallon
When you’re searching for Dallas to O'Fallon flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:
Suitable Schedules
Orbitz simplifies the process of finding and booking budget flights from Dallas to O'Fallon. Since we monitor hundreds of flight fares, you can compare several flights from a range of different airlines to find the best fares and most suitable departure and arrival times. Mix and match your departure and return flight for even more discounts and travel flexibility.
Mobile Apps
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Flight Alerts
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Miles and Points
If you travel regularly, you can still earn miles and points when you book qualifying Dallas to O'Fallon flights. Enter your frequent flyer number with your reservation to see the miles rack up.
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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.




