HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$140+ Cheap flights from Eugene (EUG) 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Eugene to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Eugene to Illinois

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

Round-trip from

$280
(Hawaiian Airlines)

One-way from

$140
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$413
From Eugene to Illinois
Search Deals
One-way flight from Eugene to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Eugene to Illinois

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

This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:36 pmEUG - ORD
1 stop6h 31mHawaiian Airlines
Sat 9/67:00 amORD - EUG
1 stop6h 29mHawaiian Airlines
Deal found 7/29$280
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:45 pmEUG - ORD
1 stop11h 18mAlaska Airlines
Sat 9/67:00 amORD - EUG
1 stop6h 29mAlaska Airlines
Deal found 7/29$281
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 9/116:30 amEUG - ORD
1 stop8h 45mDelta
Tue 9/167:25 pmORD - EUG
1 stop6h 20mDelta
Deal found 7/29$283
This Delta deal was found by Cheapflights users on 7/28. 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 8/276:30 amEUG - STL
2 stops9h 17mDelta
Thu 9/47:35 amSTL - EUG
2 stops11h 16mDelta
Deal found 7/28$290
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:50 amEUG - MDW
1 stop7h 15mSouthwest
Thu 8/218:00 amMDW - EUG
1 stop10h 35mSouthwest
Deal found 7/29$292
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:23 pmEUG - ORD
1 stop12h 27mMultiple Airlines
Sun 8/316:00 amORD - EUG
1 stop9h 33mMultiple Airlines
Deal found 7/28$296
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:50 pmEUG - STL
2 stops33h 09mAlaska Airlines
Tue 9/233:35 pmSTL - EUG
1 stop9h 13mAlaska Airlines
Deal found 7/29$319
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:55 amEUG - STL
2 stops12h 00mSouthwest
Wed 8/276:45 amSTL - EUG
1 stop6h 15mSouthwest
Deal found 7/30$320
This Delta deal was found by Cheapflights users on 7/29. 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 9/35:45 amEUG - MDW
2 stops9h 52mDelta
Sat 9/61:43 pmMDW - EUG
2 stops11h 11mDelta
Deal found 7/29$320
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:00 amEUG - STL
1 stop6h 39mHawaiian Airlines
Wed 9/176:00 amSTL - EUG
1 stop8h 42mHawaiian Airlines
Deal found 7/30$324
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:31 pmEUG - MLI
2 stops13h 39mUnited Airlines
Sat 8/3010:45 amMLI - EUG
2 stops12h 38mUnited Airlines
Deal found 7/28$389
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/134:03 pmEUG - ORD
1 stop6h 27mUnited Airlines
Wed 8/206:15 amORD - EUG
1 stop7h 48mUnited Airlines
Deal found 7/27$403

Cheapflights Fare Finder

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

Fly from

Eugene

Fly to

Illinois

Route

Depart

Return

Price

EugeneChicago

EUG - ORD

EUGORD

Eugene

Wed 9/3

1:36 pm-10:07 pm

1 stop6h 31m

Chicago O'Hare Intl

Sat 9/6

7:00 am-11:29 am

1 stop6h 29m

$280

EugeneChicago

EUG - ORD

EUGORD

Eugene

Tue 9/2

5:45 pm-7:03 am

1 stop11h 18m

Chicago O'Hare Intl

Sat 9/6

7:00 am-11:29 am

1 stop6h 29m

$281

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 8/27

6:30 am-5:47 pm

2 stops9h 17m

Lambert-St Louis

Thu 9/4

7:35 am-4:51 pm

2 stops11h 16m

$290

EugeneChicago

EUG - MDW

EUGMDW

Eugene

Tue 8/19

6:50 am-4:05 pm

1 stop7h 15m

Chicago Midway

Thu 8/21

8:00 am-4:35 pm

1 stop10h 35m

$292

EugeneChicago

EUG - ORD

EUGORD

Eugene

Fri 10/31

5:57 am-4:50 pm

2 stops8h 53m

Chicago O'Hare Intl

Sat 11/1

5:15 pm-10:37 pm

1 stop7h 22m

$292

EugeneChicago

EUG - ORD

EUGORD

Eugene

Thu 8/28

2:23 pm-4:50 am

1 stop12h 27m

Chicago O'Hare Intl

Sun 8/31

6:00 am-1:33 pm

1 stop9h 33m

$296

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 9/17

12:50 pm-11:59 pm

2 stops33h 09m

Lambert-St Louis

Tue 9/23

3:35 pm-10:48 pm

1 stop9h 13m

$319

EugeneChicago

EUG - MDW

EUGMDW

Eugene

Wed 9/3

5:45 am-5:37 pm

2 stops9h 52m

Chicago Midway

Sat 9/6

1:43 pm-10:54 pm

2 stops11h 11m

$320

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Fri 9/12

1:36 pm-11:59 pm

1 stop8h 23m

Lambert-St Louis

Wed 9/17

6:00 am-12:42 pm

1 stop8h 42m

$324

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 9/17

6:50 am-10:15 pm

2 stops13h 25m

Lambert-St Louis

Tue 9/23

6:20 am-1:35 pm

2 stops9h 15m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 26 results
1
2
3

Best time to book a flight from Eugene to Illinois

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

What is the cheapest month to book a flight from Eugene to Illinois?

Currently, August is the cheapest month in which you can book a flight from Eugene to Illinois (average of $245). Flying from Eugene to Illinois in March is currently the most expensive (average of $321). 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.

What is the cheapest time of day to fly from EUG to IL?

Find hourly flight availability from Eugene to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Eugene to Illinois as you normally would.

How much does it cost to fly round-trip from Eugene to Illinois?

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 July 30, 2025.
Read through reviews of airlines operating flights from Eugene to Illinois, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    Eugene (EUG) is the airport you will fly out of if you book a flight from Eugene to Illinois. It is only a 7.8 mi journey to Eugene (EUG) from Eugene’s city center.

  • What are the cheapest airlines to fly from Eugene to Illinois one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $140. Users have also found prices from $141 and $147 on Hawaiian Airlines and Alaska Airlines, respectively.

  • What are the most popular routes from Eugene to Illinois?

    The most popular flight routes from Eugene to Illinois are Eugene - Chicago O'Hare Intl, Eugene - Chicago Midway and Eugene - Lambert-St Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Eugene 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 Eugene to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Eugene to Illinois (average of $245). Flying from Eugene to Illinois in March is currently the most expensive (average of $321). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Eugene to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Los Angeles flights
Portland to Honolulu flights
Portland to O'Hare Intl flights
Portland to Dallas/Fort Worth flights
Portland to Newark flights
Portland to San Francisco flights
Portland to Las Vegas flights
Portland to Santa Ana flights
Portland to Boston flights
Portland to John F Kennedy Intl flights
Portland to San Diego flights
Portland to Burbank flights
Portland to Denver flights
Portland to LaGuardia flights
Portland to Sky Harbor Intl flights
Portland to Orlando flights
Portland to Salt Lake City flights
Portland to Ontario flights
Portland to Atlanta flights
Portland to Reagan-National flights
Boise to Seattle flights
Portland to Austin flights
Portland to Kahului flights
Portland to Kailua-Kona flights
Portland to San Jose flights
Boise to Las Vegas flights
Portland to Nashville flights
Portland to Minneapolis flights
Portland to Detroit flights
Portland to Oakland flights
Eugene to Las Vegas flights
Portland to Dulles Intl flights
Portland to Baltimore flights
Portland to New Orleans flights
Boise to Los Angeles flights
Boise to Denver flights
Portland to Hobby flights
Portland to Albuquerque flights
Portland to Tampa flights
Portland to Palm Springs flights
Portland to Miami flights
Portland to George Bush Intcntl flights
Portland to Lihue flights
Boise to LaGuardia flights
Portland to Reno flights
Portland to Sacramento flights
Boise to Atlanta flights
Portland to Philadelphia flights
Portland to Seattle flights
Portland to Love Field flights

Top 4 airlines flying from Eugene to Illinois

Discover the top 4 airlines that operate flights from Eugene to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$376FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$293Average$484FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$306Average$563FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$372Average$449FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.