
$93 Cheap flight deals from Boston (BOS) to Southern Illinois (STL)
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This Weekend's Flight Deals from Boston to Southern Illinois
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 $93 One Way, $203 Round Trip from Boston to Southern Illinois
Prices starting at $203 for return flights and $93 for one-way flights to Southern Illinois were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Southern Illinois economy flight packages

The West End
Oct 14 - Oct 19
Boston (BOS) to St. Louis (STL)
St. Louis (STL) to Boston (BOS)
Reviewed on Feb 17, 2025

The Wildwood Hotel
Oct 15 - Oct 18
Boston (BOS) to St. Louis (STL)
Reviewed on Sep 2, 2025

White House at Grand Central
Oct 14 - Oct 19
Boston (BOS) to St. Louis (STL)
St. Louis (STL) to Boston (BOS)
Reviewed on Sep 17, 2023
More About Flying To Southern Illinois from Boston
Route Information for Flights from Boston to Southern Illinois
Origin Airport IATA Code | BOS |
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Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Boston to Southern Illinois
Trip-Planning Made Easy
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Discount Boston to Southern Illinois Flights
Orbitz’s low price guarantee means you get the best fares around. Find the lowest prices for international and domestic tickets and for flights from Boston to Southern Illinois when you use Orbitz. It’s easy to add activities to your booking, so you can take advantage of all that Southern Illinois has to offer.
Easily Book, Change, Cancel Flights From Boston to Southern Illinois
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With Orbitz, you do not have to choose between a low fare and earning frequent flyer miles. Simply provide your frequent flyer information when you book your Boston to Southern Illinois flights.
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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.