$66 Cheap flight deals from Boston (BOS) to O'Fallon (STL)
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This Weekend's Flight Deals from Boston 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 $66 One Way, $132 Round Trip from Boston to O'Fallon
Prices starting at $132 for return flights and $66 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
Baymont by Wyndham Rolla
Aug 20 - Aug 23
Boston (BOS) to St. Louis (STL)
St. Louis (STL) to Boston (BOS)
Reviewed on Jun 15, 2025
Baymont by Wyndham Ft. Leonard/Saint Robert
Aug 20 - Aug 23
Boston (BOS) to St. Louis (STL)
St. Louis (STL) to Boston (BOS)
Reviewed on Jun 26, 2025
Bell's Extended Stay and Suites
Aug 20 - Aug 23
Boston (BOS) to St. Louis (STL)
St. Louis (STL) to Boston (BOS)
Reviewed on Dec 13, 2024
More About Flying To O'Fallon from Boston
Route Information for Flights from Boston to O'Fallon
Origin Airport IATA Code | BOS |
|---|---|
Destination Airport IATA Code | STL |
Distance | 1043 mi |
Direct Flight Airlines | American Airlines, Southwest Airlines, Iberia |
Earliest Flight Arrival | 1:00PM UTC |
Latest Flight Arrival | 2:05AM UTC |
Boston to O'Fallon
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Suitable Schedules
Orbitz simplifies the process of finding and booking budget flights from Boston 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 Boston 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.