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Cheap Flights from St Louis to Boise - STL to BOI

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215,535 seats are available per week to fly from St Louis, MO to Boise.
You must make at least one connection to fly from St Louis, MO to Boise.
There are 4756 flights from St Louis, MO to Boise per week.
United Airlines has 487 connecting flights between St Louis, MO and Boise.

Cheap Domestic Flights from St Louis - STL

Flights
Airline
Lowest Price
American, US Airways, Frontier, AirTran, Delta, Alaska, United
$223
US Airways, American, AirTran, Frontier, Delta, United, Alaska
$262
AirTran, Frontier, American, US Airways, United, Alaska, Delta
$289
Frontier, American, Delta, United, Alaska, US Airways, AirTran
$289
AirTran, Frontier, United, Alaska, US Airways, American, Delta
$106
United, Delta, American, US Airways, Frontier, AirTran
$196
United, Delta, American, Frontier
$192
Delta, Air Choice One, American, US Airways, United, Alaska
$181
Alaska, Delta, United, American, Frontier, AirTran, US Airways
$289
United, Alaska, US Airways, Delta, American, Frontier
$289
United, Delta, American, AirTran, US Airways
$216
American, Delta, United, Alaska
$417
AirTran, American, US Airways, United, Frontier
$261
United, American, Frontier, Delta
$538
AirTran, Frontier, American, US Airways, United, Delta, Alaska
$289
AirTran, Alaska, United, Delta, US Airways, American
$375
Frontier, Alaska, Delta, United, US Airways
$377
Delta, United, American, Alaska, US Airways
$412

Cheap Domestic Flights to Boise - BOI

Flights
Airline
Lowest Price
Delta, US Airways, United
$393
United, Delta, US Airways
$336
American, Delta
$437
American, United, Delta, US Airways
$336
American, US Airways, Delta, United
$336
US Airways, United, Delta, American
$336
Delta, American, Frontier
$321
Alaska, United, American, Delta
$369
United, American
$336
American, Delta
$369

Cheap International Flights from St Louis - STL

Flights
Airline
Lowest Price
US Airways, Alaska, Air Canada, United, Delta, American, WestJet
$407
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Cheap Flights from St Louis to Boise, from $362 Round trip from STL to BOI