HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Eugene

$164+ Cheap flights from Illinois to Eugene (EUG)

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — EUG
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Eugene 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 Illinois to Eugene

Cheapest flights from Illinois to Eugene
Explore the most affordable flight options available from Illinois to Eugene. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:15 pmORD - EUG
1 stop8h 57mDelta
Thu 12/253:35 pmEUG - ORD
1 stop6h 24mDelta
Deal found 12/17$289
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:15 pmORD - EUG
1 stop8h 57mDelta
Fri 12/2612:42 pmEUG - ORD
1 stop6h 54mDelta
Deal found 12/17$364
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:25 pmORD - EUG
1 stop7h 45mAmerican Airlines
Tue 1/63:18 pmEUG - ORD
1 stop7h 05mAmerican Airlines
Deal found 12/16$369
This Southwest deal was found by Cheapflights users on 12/18. 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 12/236:05 amMDW - EUG
1 stop8h 10mSouthwest
Thu 12/2512:40 pmEUG - MDW
1 stop5h 25mSouthwest
Deal found 12/18$369
This Alaska Airlines deal was found by Cheapflights users on 12/15. 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 12/238:39 amORD - EUG
1 stop11h 21mAlaska Airlines
Thu 12/255:17 amEUG - ORD
1 stop5h 59mAlaska Airlines
Deal found 12/15$380
This Delta deal was found by Cheapflights users on 12/16. 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 12/177:50 amORD - EUG
1 stop9h 59mDelta
Tue 12/233:35 pmEUG - ORD
1 stop6h 24mDelta
Deal found 12/16$444
This Delta deal was found by Cheapflights users on 12/16. 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 12/177:50 amORD - EUG
1 stop9h 59mDelta
Fri 12/266:00 amEUG - ORD
2 stops10h 00mDelta
Deal found 12/16$449
This Alaska Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/228:39 amORD - EUG
1 stop11h 21mAlaska Airlines
Thu 12/255:17 amEUG - ORD
1 stop5h 59mAlaska Airlines
Deal found 12/15$506
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:42 pmSTL - EUG
1 stop15h 35mMultiple Airlines
Tue 12/309:49 pmEUG - STL
2 stops33h 51mMultiple Airlines
Deal found 12/15$516
This Southwest deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:05 amMDW - EUG
1 stop8h 10mSouthwest
Mon 12/297:00 pmEUG - MDW
1 stop8h 05mSouthwest
Deal found 12/15$519
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:42 pmSTL - EUG
1 stop15h 35mMultiple Airlines
Wed 12/315:49 pmEUG - STL
2 stops38h 13mMultiple Airlines
Deal found 12/15$542
This Delta deal was found by Cheapflights users on 12/15. 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 12/182:11 pmSTL - EUG
2 stops11h 48mDelta
Thu 1/15:30 amEUG - STL
1 stop5h 53mDelta
Deal found 12/15$632

Find flight deals from Illinois to Eugene

Keep the following information in mind while searching for Illinois to Eugene flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Alaska Airlines)

One-way from

$164
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$467
Provider with most accurate pricing for Chicago (CHI)-Eugene flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Eugene flights.
Search Deals
From Illinois to Eugene
Search Deals
One-way flight from Illinois to Eugene
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Eugene 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 December 18, 2025.
Use the filters below to find and compare flights from Illinois to Eugene that are best for you.

Fly from

Illinois

Fly to

Eugene

Route

Depart

Return

Price

ChicagoEugene

ORD - EUG

ORDEUG

Chicago O'Hare Intl

Tue 1/13

3:35 pm-9:30 pm

1 stop7h 55m

Eugene

Wed 1/14

1:36 pm-11:50 pm

1 stop8h 14m

$238

ChicagoEugene

ORD - EUG

ORDEUG

Chicago O'Hare Intl

Fri 2/27

3:54 pm-9:31 pm

1 stop7h 37m

Eugene

Mon 3/2

5:42 am-4:33 pm

1 stop8h 51m

$238

ChicagoEugene

ORD - EUG

ORDEUG

Chicago O'Hare Intl

Tue 3/3

3:54 pm-9:31 pm

1 stop7h 37m

Eugene

Wed 3/4

1:29 pm-11:56 pm

1 stop8h 27m

$238

ChicagoEugene

ORD - EUG

ORDEUG

Chicago O'Hare Intl

Fri 5/1

6:00 pm-11:54 pm

1 stop7h 54m

Eugene

Wed 5/6

6:15 am-5:24 pm

1 stop9h 09m

$239

ChicagoEugene

MDW - EUG

MDWEUG

Chicago Midway

Fri 2/27

1:28 pm-10:55 pm

2 stops11h 27m

Eugene

Mon 3/2

6:07 am-5:37 pm

2 stops9h 30m

$299

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 1/20

2:50 pm-12:27 am

1 stop11h 37m

Eugene

Wed 1/21

9:00 am-1:54 pm

1 stop26h 54m

$312

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 3/3

7:00 am-6:21 pm

1 stop13h 21m

Eugene

Sun 3/8

5:42 am-2:23 pm

1 stop6h 41m

$322

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 1/5

5:26 pm-9:23 am

1 stop17h 57m

Eugene

Wed 1/14

5:42 am-1:54 pm

1 stop6h 12m

$322

ChicagoEugene

MDW - EUG

MDWEUG

Chicago Midway

Wed 4/8

6:30 am-10:45 am

1 stop6h 15m

Eugene

Sun 4/12

5:10 pm-5:00 am

1 stop9h 50m

$334

PeoriaEugene

PIA - EUG

PIAEUG

Greater Peoria

Wed 1/21

8:35 am-1:07 pm

1 stop6h 32m

Eugene

Sat 1/24

1:10 pm-8:47 pm

1 stop5h 37m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from Illinois to Eugene

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

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Eugene (average of $227). Flying from Illinois to Eugene in March is currently the most expensive (average of $334). 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 IL to EUG?

Find hourly flight availability from Illinois to Eugene. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Eugene in the evening. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight in the morning.

Related info for your journey

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

    If you book a flight to Eugene from Illinois, you will be flying to Eugene, which is the city’s only airport. Eugene (EUG) is located 7.8 mi from the center of Eugene.

  • How long is the flight from Illinois to Eugene?

    Departing from Illinois to Eugene will take you 6h 32m. The distance from Illinois to Eugene is about 1714 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $138 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $140 and Delta from $142 one-way.

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

    While some choose either Chicago Midway - Eugene or Lambert-St Louis - Eugene, Chicago O'Hare Intl - Eugene is the most popular route from Illinois to Eugene.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Illinois to Eugene (average of $227). Flying from Illinois to Eugene in March is currently the most expensive (average of $334). 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

Traveling to a place near Eugene?

Book flights to Eugene if you plan to visit one of these locations
Newport
Albany
Corvallis

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 Illinois to Eugene

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

Top 4 airlines flying from Illinois to Eugene

Discover the top 4 airlines that operate flights from Illinois to Eugene. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$532FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$234Average$475FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$296Average$505FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$322Average$444FlexibilityNo cancel feeOn-time85%

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.