
$150 Cheap flight deals from Green Bay (ATW) to O'Fallon (STL)
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This Weekend's Flight Deals from Green Bay 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 $150 One Way, $232 Round Trip from Green Bay to O'Fallon
Prices starting at $232 for return flights and $150 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 Wildwood Hotel
Dec 15 - Dec 18
Green Bay (GRB) to St. Louis (STL)
Reviewed on Oct 16, 2025

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Dec 15 - Dec 18
Green Bay (GRB) to St. Louis (STL)
Reviewed on Sep 9, 2024
More About Flying To O'Fallon from Green Bay
Route Information for Flights from Green Bay to O'Fallon
Origin Airport IATA Code | ATW |
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Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Green Bay to O'Fallon
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Flights from Green Bay
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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.