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Latest Flight Deals from Boise to St. Louis

Book one-way or return flights from Boise to St. Louis from as little as NZD 91. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Boise to St. Louis? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Boise to St. Louis. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Boise to St. Louis

View airlines operating flights from Boise to St. Louis. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Spirit Airlines
From NZD 91
American Airlines
From NZD 255
United Airlines
From NZD 286
Delta Air Lines
From NZD 295
Alaska Airlines
From NZD 306
Sun Country Airlines
From NZD 826
ANA airlines

Find more flights and airlines

Alternative Routes from Boise to St. Louis

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Boise to St. Louis.

  • Cheapest
    Spirit Airlines
    BOI
    20:46
    12h 27m
    1 transfer
    STL
    10:13
    Boise Airport - St. Louis Lambert International Airport
    Wed, May 15Spirit Airlines
    NZD 91
  • Spirit Airlines
    BOI
    20:46
    12h 27m
    1 transfer
    STL
    10:13
    Boise Airport - St. Louis Lambert International Airport
    Wed, May 15Spirit Airlines
    NZD 91
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Boise (BOI) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Boise to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Boise (BOI) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around NZD 781.
  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km. It takes about 40 minutes by taxi.

How to find a cheap flight from Boise to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boise to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information from Boise to St. Louis

Cheapest nonstop flight price

NZD 90

Off-season for travel

May

Peak season for travel

November

Flight distance

2,240.39km

Popular airline

American Airlines