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Cheap Flights from St Louis to Boise, ID, United States - STL to BOI

Popular flights from St Louis to Boise

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

Alaska Airlines
Departure Date Return Date Lowest Price
Apr 7, 2016 Apr 13, 2016 $323
American Airlines
Departure Date Return Date Lowest Price
Mar 30, 2016 Apr 5, 2016 $323
Apr 22, 2016 Apr 25, 2016 $323
United Airlines
Departure Date Return Date Lowest Price
Apr 7, 2016 Apr 13, 2016 $323
Apr 22, 2016 Apr 25, 2016 $323

How Much Does it Cost to Fly from St Louis to Boise (STL to BOI)?

We have collected flight cost data from across the web for travel from St Louis to Boise, and have found the average flight price for this trip to be $345.

When Can I Buy the Cheapest Flight from St Louis to Boise (STL to BOI)?

Airlines can adjust prices for plane tickets from St Louis to Boise based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Round Trip vs One Way Flights from St Louis to Boise (STL to BOI)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Boise. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Boise is $164.

The average price for round trip flights from St Louis to Boise is $323.

St Louis to Boise Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to Boise?
Answer: Denver, CO

Airlines Flying from St Louis to Boise (STL to BOI)

Below are the different airlines that fly from St Louis to Boise with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to Boise.

St Louis to Boise
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX X X X X X X X
Alaska PDX X X X X X X X
Delta MSP X X X X X X X
Delta DTW / SLC X X X X X X X
United ORD X X X X X X X
Southwest LAS X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Boise, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Las Vegas American, Alaska, Frontier, United $115
St Louis to Seattle American, Alaska, Frontier, United $243
St Louis to Los Angeles American, Alaska, Frontier, United $244
St Louis to San Francisco American, Alaska, Frontier, United $244
St Louis to Denver American, Frontier, United $108
St Louis to Salt Lake City American, Alaska, Frontier, United $178
St Louis to Dallas - Ft Worth American, Alaska, United $196
St Louis to Chicago American, United $204
St Louis to Phoenix American, Alaska, Frontier, United $238
St Louis to Portland American, Alaska, Frontier, United $218
St Louis to Atlanta American, Alaska, Frontier, United $108
St Louis to Sun Valley United Check Dates
St Louis to New York American, Alaska, United $243
St Louis to Jackson American, Alaska, United $335
St Louis to San Diego American, Alaska, Frontier, United $236
St Louis to Reno American, Alaska, United $352
St Louis to Bozeman American, Frontier, United $414
St Louis to Twin FallsCheck Dates
St Louis to Sacramento American, Alaska, United $334

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Vancouver American, Air Canada, Alaska, Frontier, United, WestJet $306

Cheap Domestic Flights to Boise - BOI

FlightsAirlineLowest Price
Moline to Boise American, Alaska, United $577
Springfield to Boise American, Alaska, United $445
Evansville to Boise American, United Check Dates
Peoria to Las Vegas American, United $306
Springfield to Las Vegas American, United $429
Moline to Las Vegas American, Alaska, United $312
Bloomington - Normal to Denver American $322
Springfield to Seattle American, Alaska, United $462
Springfield to Las Vegas American, United $342
Evansville to Las Vegas American, United $367
Cheap Flights from St Louis to Boise, ID, United States, from $323 Round trip from STL to BOI