What is the cheapest month to book a flight from Twin Falls to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Twin Falls to St. Louis (average of $311). Flying from Twin Falls to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from TWF to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Twin Falls to St. Louis as you normally would.

Can I find deals for flights from Twin Falls to St. Louis that include hotel bookings?

Yes. In addition to deals on Twin Falls to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Twin Falls to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Twin Falls to St. Louis.

Can I find deals for business class flights from Twin Falls to St. Louis?

Yes. Cheapflights offers flight deals from Twin Falls to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$429+ Flights from Twin Falls to St. Louis

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Cheap flight deals from Twin Falls to St. Louis

Round-trip from	$452 (Delta)
One-way from	$429 (Delta)

From Twin Falls Joslin to Lambert-St Louis

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One-way flight from Twin Falls Joslin to Lambert-St Louis

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Find flight deals from Twin Falls to St. Louis

Cheapest flights from Twin Falls to St. Louis
Explore the most affordable flight options available from Twin Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Sat 10/46:15 amTWF - STL

1 stop6h 29mDelta

Tue 10/76:00 amSTL - TWF

2 stops9h 37mDelta

Deal found 7/27

$452

Best flights from Twin Falls to St. Louis
Discover carefully curated flight deals from Twin Falls to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 10/46:15 amTWF - STL

1 stop6h 29mDelta

Tue 10/76:00 amSTL - TWF

2 stops9h 37mDelta

Deal found 7/27

$452

Last-minute flights from Twin Falls to St. Louis
Discover last-minute flight deals from Twin Falls to St. Louis. Data last updated July 29, 2025 and is based on user searches.

Mon 8/113:20 pmTWF - STL

2 stops7h 02mDelta

Fri 8/151:26 pmSTL - TWF

2 stops10h 04mDelta

Deal found 7/27

$857

One-way flights from Twin Falls to St. Louis
Search for one-way flight options from Twin Falls to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sun 8/103:20 pmTWF - STL

2 stops7h 00mDelta

Deal found 7/26

$429

Cheapflights Fare Finder

Use the filters below to find and compare flights from Twin Falls to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Twin FallsSt. Louis

TWF - STL

TWFSTL

Twin Falls Joslin

Sat 10/4

6:15 am-1:44 pm

1 stop6h 29m

Lambert-St Louis

Tue 10/7

6:00 am-2:37 pm

2 stops9h 37m

$452

Twin FallsSt. Louis

TWF - STL

TWFSTL

Twin Falls Joslin

Sun 8/10

3:20 pm-11:20 pm

2 stops7h 00m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Best time to book a flight from Twin Falls to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Twin Falls with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Delta from Twin Falls to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Can I find deals for flights from Twin Falls to St. Louis that include hotel bookings?
Yes. In addition to deals on Twin Falls to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Twin Falls to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Twin Falls to St. Louis.
Can I find deals for business class flights from Twin Falls to St. Louis?
Yes. Cheapflights offers flight deals from Twin Falls to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Twin Falls to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Twin Falls to St. Louis (average of $311). Flying from Twin Falls to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$429+ Cheap flights from Twin Falls to St. Louis (TWF - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Twin Falls to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Twin Falls to St. Louis

Round-trip from

One-way from

Find flight deals from Twin Falls to St. Louis

Cheapest flights from Twin Falls to St. LouisExplore the most affordable flight options available from Twin Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Twin Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Twin Falls to St. Louis that are best for you.

Best time to book a flight from Twin Falls to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Twin Falls with our price prediction graph.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Delta from Twin Falls to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Twin Falls to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Twin Falls to St. Louis that include hotel bookings?

How can I find direct flights from Twin Falls to St. Louis?

Can I find deals for business class flights from Twin Falls to St. Louis?

What is the cheapest month to book a flight from Twin Falls to St. Louis?

Traveling to a place near St. Louis?

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Alternative routes for Twin Falls to St. Louis

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Cheapest flights from Twin Falls to St. Louis
Explore the most affordable flight options available from Twin Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.