Find St. Louis to Helena flights starting at CAD 410.
Book one-way or return flights from St. Louis to Helena from as little as CAD 410. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- STL19:4119h 42m1 stopHLN14:23Fri, May 24|St. Louis - Helena|Alaska AirlinesCAD 410CAD 63435% OFF35% OFFCAD 634CAD 410
- STL16:455h 41m1 stopHLN21:26Fri, May 24|St. Louis - Helena|United AirlinesCAD 523CAD 63418% OFF18% OFFCAD 634CAD 523
- STL07:555h 48m1 stopHLN12:43Fri, May 24|St. Louis - Helena|Delta Air LinesCAD 590CAD 6347% OFF7% OFFCAD 634CAD 590
- STL13:003h 5mDirectHLN14:00Tue, May 14|St. Louis - Helena|Alaska AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Helena.
- CheapestSTL18:0521h 18m2 transferHLN14:23St. Louis Lambert International Airport - Helena Regional AirportFri, May 24Sun Country AirlinesCAD 371
- STL18:0521h 18m2 transferHLN14:23St. Louis Lambert International Airport - Helena Regional AirportFri, May 24Sun Country AirlinesCAD 371Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from St. Louis to Helena
Cheapest direct flight price | CAD 409 |
---|---|
Cheapest month | March |
Peak season for travel | January |
Flight distance | 1,983.91km |
Popular airline | Alaska Airlines |
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