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Cheap flights from Boise to St Louis (BOI - STL)

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The best prices from Boise to St Louis are usually found in August or June, booked 37 days in advance, depart on a Sunday or Saturday and return on a Wednesday

How to find the cheapest flight from
Boise (BOI) to St Louis (STL)

BOI - STL
Price
$205 - $454
STL
Temperature
44.6 - 89.6 °F
STL
Rainfall
2.2 - 5.1 inches

Popular in

December

High demand for flights, 32% potential price rise

Cheapest in

August

Best time to find cheap flights, 34% potential price drop

Average price

$328

Average for round-trip flights in November 2020

Round-trip from

$205

From Boise to St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Boise to St Louis?

Sunday flights are found to be more expensive to fly from Boise to St Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St Louis.

How far in advance should I book a flight from Boise to St Louis?

Find a great deal and save up to 96% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boise to St Louis within the next two weeks, with the cheapest ticket starting at $374.

What is the cheapest month to fly from Boise to St Louis?

Our data shows that August tends to be the cheapest month to fly to St Louis from Boise. Users have commonly found prices around $266 for the month, but tickets can be as low as $158. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Boise to St Louis (BOI - STL)?

A simple way to save on the total cost of your ticket is to fly from Boise to St Louis in the evening. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight at noon.

Cheap flights from Boise to St Louis in November, December 2020

The best prices found for BOI to STL flights for November, December
29 Dec - 3 Jan
$287pp
BOI
Boise Air Term. Gowen Fld
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
29 Dec - 3 Jan
$294pp
BOI
Boise Air Term. Gowen Fld
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld
29 Dec - 3 Jan
$298pp
BOI
Boise Air Term. Gowen Fld
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld

Boise to St Louis 2021 flight deals

Cheap flights to St Louis from Boise found for next year
29 Dec - 3 Jan
$287pp
BOI
Boise Air Term. Gowen Fld
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
29 Dec - 3 Jan
$294pp
BOI
Boise Air Term. Gowen Fld
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld
29 Dec - 3 Jan
$298pp
BOI
Boise Air Term. Gowen Fld
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld

Last minute flights from Boise to St Louis

Late deals on round-trip flights to St Louis from Boise, departing today and this week
7 Dec - 17 Dec
$410pp
BOI
Boise Air Term. Gowen Fld
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
   
2 STOPS
BOI
Boise Air Term. Gowen Fld
7 Dec - 17 Dec
$416pp
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
   
2 STOPS
BOI
Boise Air Term. Gowen Fld
7 Dec - 17 Dec
$422pp
BOI
Boise Air Term. Gowen Fld
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld

Related info for your journey

Useful info, stats and facts about Boise to St Louis flights.

Flight FAQs

From Boise to St Louis

Are flight prices decreasing from Boise to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Boise and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Boise Air Term. Gowen Fld to Lambert-St Louis to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Boise Air Term. Gowen Fld to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Boise Air Term. Gowen Fld to Lambert-St Louis have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Delta, United Airlines, and American Airlines flying from Boise Air Term. Gowen Fld to Lambert-St Louis have implemented new flexible cancellation policies.

Can I find flights from Boise to St Louis for under $300 on Cheapflights?

Yes, there are multiple flights from Boise to St Louis for under $300. The cheapest flight booked recently is on Delta for just $226, but on average you can expect to pay $315.

Are there nonstop flights from Boise to St Louis for under $200 on Cheapflights?

There are no nonstop flights from Boise to St Louis, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Boise to St Louis for under $500?

There are currently 4+ open flights from Boise to St Louis within the next 7 days for less than $500.

Does it rain more in Boise or St Louis?

Boise will have less rainfall in 2 compared to St Louis over the next 14 days.

Is Boise weather warmer or cooler than St Louis?

With an average temperature of 93 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in St Louis are colder than in Boise.

How long is the flight from Boise to St Louis?

Airlines like American Airlines, United Airlines, and Delta fly from Boise to St Louis in about 5h 44m. The time it takes to get you to your destination can typically vary by up to 37m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Boise to St Louis round-trip?

Currently priced at $226, Delta will fly you from Boise to St Louis and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $272 and $318, respectively. These flights start at 26% lower than the current average price 3 months from now.

Alternative routes for Boise to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Boise to St Louis
Average temperature for November in St Louis
57.2 °F
Avg rainfall for November in St Louis
3.4 ″

Airports servicing Boise

Airports servicing St. Louis

Top 4 airlines from Boise to St Louis

The chart below displays the airlines Cheapflights users traveling from Boise to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Alaska Airlines
$138 $285 No cancel fee 75%
American Airlines
$169 $360 No cancel fee 71%
United Airlines
$138 $380 No cancel fee 69%
Delta
$142 $410 No cancel fee N/A
Weekly flight availability
from Boise to St Louis
Sunday
0 flights
Monday
0 flights
Tuesday
1 daily flight
Wednesday
0 flights
Thursday
0 flights
Friday
1 daily flight
Saturday
0 flights
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