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$345+ Cheap flights from Lewiston, ID (LWS) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Lewiston to Illinois

Cheapest flights from Lewiston to Illinois
Explore the most affordable flight options available from Lewiston to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/107:00 amLWS - BMI
2 stops13h 06mDelta
Sat 12/133:30 pmBMI - LWS
2 stops31h 32mDelta
Deal found 10/28$512
This Delta deal was found by Cheapflights users on 10/30. 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.
Fri 11/147:00 amLWS - ORD
1 stop8h 18mDelta
Sun 11/167:20 amORD - LWS
1 stop6h 23mDelta
Deal found 10/30$558
This Delta deal was found by Cheapflights users on 10/30. 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.
Fri 10/312:02 pmLWS - STL
1 stop5h 21mDelta
Sun 11/25:50 amSTL - LWS
1 stop8h 32mDelta
Deal found 10/30$756
This Delta deal was found by Cheapflights users on 10/28. 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 11/17:10 amLWS - MLI
2 stops13h 10mDelta
Tue 11/45:00 pmMLI - LWS
2 stops30h 03mDelta
Deal found 10/28$1,015

Cheap flight deals from Lewiston to Illinois

Keep the following information in mind while searching for Lewiston to Illinois flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$345
(Delta)
Provider with most accurate pricing for Lewiston Nez Perce Rgnl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lewiston Nez Perce Rgnl-Chicago (CHI) flights.
Search Deals
From Lewiston Nez Perce Rgnl to Illinois
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lewiston 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 October 30, 2025.
Use the filters below to find and compare flights from Lewiston to Illinois that are best for you.

Fly from

Lewiston

Fly to

Illinois

Route

Depart

Return

Price

LewistonSt. Louis

LWS - STL

LWSSTL

Lewiston Nez Perce Rgnl

Sat 2/28

7:05 am-11:10 pm

2 stops14h 05m

Lambert-St Louis

Tue 3/3

7:00 am-9:02 pm

2 stops16h 02m

$345

LewistonChicago

LWS - ORD

LWSORD

Lewiston Nez Perce Rgnl

Wed 3/25

6:25 am-11:44 pm

1 stop15h 19m

Chicago O'Hare Intl

Sat 3/28

7:30 am-10:57 pm

1 stop17h 27m

$471

LewistonBloomington

LWS - BMI

LWSBMI

Lewiston Nez Perce Rgnl

Wed 12/10

7:00 am-10:06 pm

2 stops13h 06m

Bloomington-Normal

Sat 12/13

3:30 pm-9:02 pm

2 stops31h 32m

$512

LewistonChicago

LWS - ORD

LWSORD

Lewiston Nez Perce Rgnl

Fri 11/14

7:00 am-9:25 pm

2 stops12h 25m

Chicago O'Hare Intl

Sun 11/16

2:12 pm-9:06 pm

1 stop8h 54m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Lewiston to Illinois

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

What is the cheapest month to book a flight from Lewiston, Idaho to Illinois?

Currently, June is the cheapest month in which you can book a flight from Lewiston, Idaho to Illinois (average of $140). Flying from Lewiston, Idaho to Illinois in November is currently the most expensive (average of $242). 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.

Related info for your journey

Find useful and relevant information for your journey from Lewiston 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 Lewiston to Illinois?

    For a flight from Lewiston to Illinois, you will be flying from Nez Perce Rgnl. Lewiston Nez Perce Rgnl (LWS) is just 1.9 mi from the center of the city.

  • How long is the flight from Lewiston, Idaho to Illinois?

    Departing from Lewiston, Idaho to Illinois will take you 14h 05m. The distance between Lewiston, Idaho and Illinois is about 1445 mi.

  • What are the most popular routes from Lewiston, Idaho to Illinois?

    Most travelers choose Lewiston Nez Perce Rgnl - Chicago O'Hare Intl, Lewiston Nez Perce Rgnl - Lambert-St Louis or Lewiston Nez Perce Rgnl - Bloomington-Normal when deciding on the best route from Lewiston, Idaho to Illinois.

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

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

  • How can I find direct flights from Lewiston to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Lewiston 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 Lewiston, Idaho to Illinois?

    Currently, June is the cheapest month in which you can book a flight from Lewiston, Idaho to Illinois (average of $140). Flying from Lewiston, Idaho to Illinois in November is currently the most expensive (average of $242). 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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