EUG - ONT

$105 Find Cheap Flights from Eugene to Ontario

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 Ontario departing on 9/16. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Eugene to Ontario, 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 Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Eugene to Ontario (EUG-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Eugene to Ontario 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Eugene to Ontario

Wed, Sep 3 - Sat, Sep 6
Alaska Airlines Logo
6:00 am - 10:44 amEUG-ONT
4h 44m1 stop
Alaska Airlines Logo
3:06 pm - 9:04 pmONT-EUG
5h 58m1 stop
$223Alaska Airlines
Find Deal
Thu, Sep 25 - Tue, Sep 30
Delta Logo
5:20 am - 12:17 pmEUG-ONT
6h 57m1 stop
Delta Logo
1:15 pm - 10:42 pmONT-EUG
9h 27m2 stops
$228Delta
Find Deal
Sat, Oct 18 - Mon, Oct 27
Alaska Airlines Logo
5:42 pm - 12:03 amEUG-ONT
6h 21m1 stop
Alaska Airlines Logo
4:11 pm - 9:10 pmONT-EUG
4h 59m1 stop
$237Alaska Airlines
Find Deal
Thu, Sep 18 - Sat, Sep 20
Southwest Logo
6:50 am - 10:15 amEUG-ONT
3h 25m1 stop
Southwest Logo
9:55 am - 8:10 pmONT-EUG
10h 15m1 stop
$242Southwest
Find Deal
Thu, Sep 11 - Fri, Sep 12
Alaska Airlines Logo
6:00 am - 10:44 amEUG-ONT
4h 44m1 stop
Alaska Airlines Logo
7:40 pm - 12:25 amONT-EUG
4h 45m1 stop
$243Alaska Airlines
Find Deal
Sun, Sep 21 - Tue, Sep 23
United Airlines Logo
6:00 am - 12:13 pmEUG-ONT
6h 13m1 stop
United Airlines Logo
6:50 pm - 10:50 pmONT-EUG
4h 00m1 stop
$249United Airlines
Find Deal
Thu, Sep 18 - Sat, Sep 20
Southwest Logo
6:50 am - 12:00 pmEUG-ONT
5h 10m1 stop
Southwest Logo
5:45 am - 8:10 pmONT-EUG
14h 25m2 stops
$253Southwest
Find Deal
Thu, Jan 15 - Sun, Jan 18
Hawaiian Airlines Logo
5:30 pm - 10:37 pmEUG-ONT
5h 07m1 stop
Hawaiian Airlines Logo
7:00 am - 11:43 amONT-EUG
4h 43m1 stop
$274Hawaiian Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
Hawaiian Airlines Logo
5:45 pm - 11:59 pmEUG-ONT
6h 14m1 stop
Hawaiian Airlines Logo
6:00 am - 12:42 pmONT-EUG
6h 42m1 stop
$318Hawaiian Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 7
United Airlines Logo
6:00 am - 12:13 pmEUG-ONT
6h 13m1 stop
United Airlines Logo
6:50 pm - 10:50 pmONT-EUG
4h 00m1 stop
$339United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Eugene to Ontario flights

Get data-powered insights and trends into flights from Eugene to Ontario 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 Ontario?

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

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

Your flight ticket price will generally be cheaper if you fly to Ontario on a Thursday and more expensive on a Saturday. On your return trip to Eugene, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Eugene to Ontario, 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 Ontario is February, where tickets cost $278 (return) on average. On the other hand, the most expensive months are March and October, where the average cost of round-trip tickets is $526 and $426 respectively.

Good to know

Low seasonJuly
Cheapest flight$105
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Eugene to Ontario

When to book flights from Eugene to Ontario

Are your dates flexible? Find out the best times to travel from Eugene to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Eugene to Ontario

  • What is the cheapest flight from Eugene to Ontario?

    In the last 3 days, the lowest price for a flight from Eugene to Ontario was $105 for a one-way ticket and $223 for a round-trip.

  • Do I need a passport to fly between Eugene and Ontario?

    No

  • Which aircraft models fly most regularly from Eugene to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Eugene to Ontario?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Eugene and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Eugene to Ontario, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Eugene to Ontario are Southwest and Alaska Airlines. With an average price for the route of $339 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $394 and an overall rating of 8.0.

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

    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 Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Eugene 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 Ontario?

    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 to Ontario with an airline and back to Eugene with another airline. Booking your flights between Eugene and ONT can sometimes prove cheaper using this method.

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

    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 to Ontario from Eugene up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Eugene to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Eugene to Ontario. 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 Ontario? 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
Airline reviews

Loved the staff ease of flying snacks and free movies and WiFi

10.0 ExcellentAnonymous, Aug 2025SEA - ONT
Read more Alaska Airlines reviews

Loved the staff ease of flying snacks and free movies and WiFi

At the Portland airport, Alaska Airlines has put in a system where you have to create your own bag tag, then put your own suitcase onto a scale to weigh it. The day we were there, the system was not working properly, and we kept on being told to go onto different lines so it took us approximately 45 minutes to check our bag in. I do not work for the airlines why am I subjected to doing this? How all these companies are shifting their work onto people who have paid good money for their products is crazy. And then the system that the customers are supposed to use don't work properly..

I liked Alaska better than other carriers that I have EVER used. Unfortunately, the plane from LAX to Guanacaste leg of my journey had some mechanical problems and had to return to LAX - causing my journey to be very long and added a day to my total trip. The Airline was very prompt in offering their apology and have given me credit to use for my next flight. I thought the terminal in LAX was too cold for comfort, especially if there is a long wait between flights.

I'm a platinum member with American Airlines, however, my ticket did not display status and thus I did not board with an early group. I traveled with my two daughters and we were given a row of seats that did not recline. Not the treatment I would have expected for a platinum customer. The flight was also a bit late leaving Portland. Also on my flight to Portland we were not given premium seats. In fact, we were in the last row of the aircraft.

I was at risk of not getting on the flight, as when I presented my boarding pass at the gate, it showed me as not having checked in. I was sent to the desk as the last of the other passengers boarded. The agent there said he could see that I had done all of my part and allowed times recommended, but it showed me as not checked in and he couldn't figure out how to correct it. He actually asked them to hold the flight as he struggled with it. He called for support, someone corrected it, and he printed boarding passes for both flights to reduce further issues. I did get on, and needed to ask someone to exit my seat.

We had a birthday one day off and almost missed the plane Our fault

Alaska app and website had numerous problems so couldn’t get boarding passes or check seats

Flight was very warm. It felt like there was no working AC.

Very good. Gate personnel were excellent flight attendants were also able to change my seat at the last minute everyone, courteous, polite, and.

Delayed. It's not our first flight with them either, it's actually our 3rd and all 3 were delayed by hours each time. It was a myriad of delays. On one flight we boarded after being delayed for a little over an hr, only to be told we were going to sit in the plane for another hour before departing. Once landed, we waited another 40ish min to get to our gate. On another flight, flight was delayed just under 3 hrs but atleast we got to wait it out at the airport terminal. Its just a bad experience overall flying with Alaska Airlines.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

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

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