$159 Find Cheap Flights from Eugene to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Eugene to Illinois departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Eugene to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Eugene to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Eugene to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$317
Moline
Moline1 stop$349
Peoria
Peoria1 stop$449
Springfield
Springfield2 stops$913
St. Louis
St. Louis1 stop$349
Chicago
Chicago1 stop$317
Moline
Moline1 stop$349
Peoria
Peoria1 stop$449
Springfield
Springfield2 stops$913
St. Louis
St. Louis1 stop$349

Book Cheap Eugene to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Eugene to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Eugene to Illinois

Wed, Aug 5 - Sat, Aug 15
Alaska Airlines Logo
4:00 pm - 5:00 am
EUG
-
ORD
11h 00m
1 stop
Alaska Airlines Logo
7:17 pm - 11:59 pm
ORD
-
EUG
6h 42m
1 stop
$317Alaska Airlines
Wed, Oct 21 - Sun, Oct 25
Delta Logo
12:30 pm - 11:46 pm
EUG
-
ORD
9h 16m
1 stop
Delta Logo
7:30 am - 5:13 pm
ORD
-
EUG
11h 43m
2 stops
$322Delta
Wed, Jul 8 - Sun, Jul 12
Delta Logo
12:32 pm - 11:38 pm
EUG
-
ORD
9h 06m
1 stop
Delta Logo
6:55 am - 12:58 pm
ORD
-
EUG
8h 03m
1 stop
$327Delta
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
2:15 pm - 8:26 pm
EUG
-
ORD
4h 11mnonstop
United Airlines Logo
8:45 am - 11:33 am
ORD
-
EUG
4h 48mnonstop
$329United Airlines
Wed, Jul 22 - Tue, Aug 4
Alaska Airlines Logo
12:34 pm - 5:00 am
EUG
-
ORD
14h 26m
1 stop
Alaska Airlines Logo
6:00 am - 1:01 pm
ORD
-
EUG
9h 01m
1 stop
$333Alaska Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
12:52 pm - 11:59 pm
EUG
-
ORD
9h 07m
1 stop
United Airlines Logo
8:45 am - 11:33 am
ORD
-
EUG
4h 48mnonstop
$339United Airlines
Wed, Aug 5 - Sat, Aug 15
Southwest Logo
11:15 am - 8:45 pm
EUG
-
MDW
7h 30m
1 stop
Southwest Logo
6:50 am - 10:50 am
MDW
-
EUG
6h 00m
1 stop
$349Southwest
Sat, Aug 22 - Mon, Aug 24
Southwest Logo
12:55 pm - 8:45 pm
EUG
-
MDW
5h 50m
1 stop
Southwest Logo
6:15 am - 12:40 pm
MDW
-
EUG
8h 25m
2 stops
$350Southwest
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
6:15 am - 11:06 pm
EUG
-
MLI
14h 51m
2 stops
American Airlines Logo
11:23 am - 7:43 pm
MLI
-
EUG
10h 20m
2 stops
$399American Airlines
Fri, Aug 7 - Mon, Aug 10
American Airlines Logo
5:24 am - 12:12 am
EUG
-
SPI
16h 48m
2 stops
American Airlines Logo
6:08 am - 8:09 pm
SPI
-
EUG
16h 01m
2 stops
$913American Airlines
Booking Insights

KAYAK's insights & trends for Eugene to Illinois flights

Get data-powered insights and trends into flights from Eugene to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Eugene to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Eugene to Illinois departing in August.

What is the cheapest Eugene to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Eugene found in the last 5 days was to Chicago, at $292 round-trip. The most popular route is from Eugene (EUG) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $292.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Eugene to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $462 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $476.

Can I save money by flying with a layover from Eugene to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $507 on average.

What is the cheapest month to fly from Eugene to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Eugene to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Eugene to Illinois is November, when tickets cost $104 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $277 and $268 respectively.

What’s the cheapest day of the week to fly from Eugene to Illinois?

The average price of all round-trip flights from Eugene to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Eugene to Illinois. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

How far in advance should I book a flight from Eugene to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Eugene to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Eugene to Illinois, you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$159
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Eugene to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Eugene to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Eugene to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Eugene to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Eugene to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Eugene to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Eugene to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Eugene to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Eugene to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Eugene to the following destinations at these prices or less: Chicago $209 one-way - $429 round-trip

Reviews of the top 5 airlines serving from Eugene to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Eugene to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Eugene to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12579 reviews
7.8Comfort
7.0Food
8.5Crew
8.1Boarding
7.0Entertainment
Airline reviews

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

6.0 GoodAnonymous, Jun 2026
EUG - SEA
Read more Alaska Airlines reviews

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

My very first, first class flight! Loved the comfortable seats, foot rest and beverages. Did not have food due to short flight. Crew was very friendly!

This flight was all good. It was packed, but it took off on time and there were no problems. It would have been nice if they'd checked our bags for free, as they sometimes do.

The internet was down, which made my work plans impossible while inflight.

Boarding much smoother than previous United flights! The flight attendant helped monitor putting bags in overhead bins. On united no help resulted in bins in first class being filled before I boarded for first class. I had to search further down into economy. Then got stuck unable to return to my seat. People were putting backpacks that needed to go under seats in bins. It was a mess. This flight was a refreshing improvement. United also had so many categories of preboarding that first class could not board early. The pilot talked to us directly instead of using the intercom before flight.

The planes were in very nice condition. Comfortable enough leg room. I had a very quick connection on my return home I made it just fine and so did my luggage!!

Most of it was good. The flights were on time. The staff were helpful and friendly. I had a short time connecting flights and they let me deplane first and I made the connection. On the outbound from DTW to SEA I was seated in the middle of two very large people. I am petite and even with my arms crossed they were both hanging over into my seat touching me. The meal had way too much pepper and spice, my lips were burning. Other than those two issues, I was pleased with the service and the trip and will use Alaska Air again.

Wheelchair assistant was on the spot, and very helpful. Gate agent was kind, and made sure I boarded the plane without having to try to hurry with my painful hip. My seat was so comfortable, 20A. I am tall, 5'9 and I need to stretch out my legs due to chronic nerve pain in my back that runs down my right leg, in addition to the bursitis in my right hip. Alaska air has the best economy seating in the market. So much room for legs, elbows, etc. When I arrived in SEA, the next Wheelchair was waiting to take me to the next gate. Great communication.

Very delayed for seemingly no reason. Made me miss an event

We sat on the tarmac for 25 minutes after landing and it caused me to miss a connecting flight. It turned a 7 hour travel day into a 14 hour travel day. That really sucked.

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

WiFi was not working and didn’t have a beverage service

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

I liked the boarding process with our loading group and numbers. I disliked that I couldn't guarantee our seats together. I didn't like that the Internet costs $8/ flight, but did love all the inflight options available through their app. I disliked no charging station at my seat for a 3+ hour flight.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Cramped seating for me. Luckily it wasn’t a long flight

5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

The captain was amazing and kept us informed throughout that there would be some rough air. The flight also got delayed but we were able to actually leave on time, which was great.

The staff did not do a good job of getting everyone boarded quickly, so we missed our take off window and had to sit on the tarmac for 20+ min waiting for our turn. The plan was old. Pockets on the back of seats were torn and tearing off. One of the attendants was rude-she would ask a question but he walking away before you finished answering so she kept getting our drink orders wrong.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

They we able to seat my companion and I next to each other. Plane’s temperature was very cool. Willl be more prepared on return trip.

Plenty of overhead compartment room. The seat choice option is horrendous as best.

Flight delays - issues with delays waiting for a gate in Denver

On time. Alaska upgraded seat comfort with memory foam seat covers with head rests

I booked through Hawaiian which was supposed to have merged with Alaskan but offered free checked bags and said there would be seat selection at the airport. This was not honored by Alaskan Airlines and they even went out of their way to say “we are not Hawaiian and Hawaiian cannot pick seats on our airline ”. They told us that we could not change seats and that all tickets booked through Hawaiian were “saver fares”. The staff was rude and said that we would be helped last after they take care of the customers that booked through Alaskan. Once we got on the flight in our middle seats they played a message that said they have merged with Hawaiian and you can book on either website which would have been funny if we were not so uncomfortable. All in all it was a terrible experience and I do not recommend that anyone fly Alaskan unless they absolutely have to.

A cold sandwich would be much better than the warm gummy croissant.

Seats were so uncomfortable. Used to southwest so this was really disappointing. No wifi made for a long5 hour flight

It’s really tough when you purchase tickets and you are unable to purchase your seats, and just get random seats when you are traveling with someone.

Having enough fuel to get to our destination seems like it should be a given when you board a plane. Not in this case, delayed hours to refuel.

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

The flight was delayed from take off because only one runway was operational in San Francisco.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

United have really come back. Airport and boarding process is clear and good, app and information also very good

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

Everything you need to know for your flight from Eugene to Illinois

Information on your arrival and departure airports