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$574+ Cheap flights from Twin Falls (TWF) to Illinois

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
TWF — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Twin Falls to Illinois

Keep the following information in mind while searching for Twin Falls to Illinois flight deals. Data was last updated March 28, 2025.

Round-trip from

$686
(Delta)

One-way from

$574
(Delta)
From Twin Falls Joslin to Illinois
Search Deals
One-way flight from Twin Falls Joslin to Illinois
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Find flight deals from Twin Falls to Illinois

Cheapest flights from Twin Falls to Illinois
Explore the most affordable flight options available from Twin Falls to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:15 amTWF - STL
1 stop6h 13mDelta
Fri 8/17:30 amSTL - TWF
1 stop8h 08mDelta
Deal found 3/27$686

Cheapflights Fare Finder

Customize your flight search to find flights from Twin Falls to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Twin Falls to Illinois that are best for you.

Fly from

Twin Falls

Fly to

Illinois

Route

Depart

Return

Price

Twin FallsSt. Louis

TWF - STL

TWFSTL

Twin Falls Joslin

Sat 7/5

6:15 am-1:28 pm

1 stop6h 13m

Lambert-St Louis

Fri 8/1

7:30 am-2:38 pm

1 stop8h 08m

$686

Twin FallsSt. Louis

TWF - STL

TWFSTL

Twin Falls Joslin

Sun 7/6

6:15 am-1:28 pm

1 stop6h 13m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Best time to book a flight from Twin Falls to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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.

Cheapflights Insights

Everything you need to know about your flight from Twin Falls to Illinois

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated March 28, 2025.
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly from for flights from Twin Falls to Illinois?

    Twin Falls Joslin (TWF), located 5.8 mi from the city center, is the airport you fly out of when you book flights from Twin Falls to Illinois.

  • Can I find deals for flights from Twin Falls to Illinois that include hotel bookings?

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

  • How can I find direct flights from Twin Falls to Illinois?

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

  • Can I find deals for business class flights from Twin Falls to Illinois?

    Yes. Cheapflights offers flight deals from Twin Falls to Illinois 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 Illinois?

    Currently, August is the cheapest month in which you can book a flight from Twin Falls to Illinois (average of $245). Flying from Twin Falls to Illinois in March is currently the most expensive (average of $323). 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.

See more FAQs

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