EUG - ONT

$121 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 10/30. 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.

Recent round-trip flight deals from Eugene to Ontario

Wed, Nov 19 - Wed, Nov 26
Alaska Airlines Logo
12:55 pm - 5:09 pmEUG-ONT
4h 14m1 stop
Alaska Airlines Logo
7:21 pm - 12:19 amONT-EUG
4h 58m1 stop
$240Alaska Airlines
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Sat, Oct 25 - Mon, Oct 27
Delta Logo
5:20 pm - 10:41 pmEUG-ONT
5h 21m1 stop
Delta Logo
4:35 pm - 11:49 pmONT-EUG
7h 14m1 stop
$249Delta
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Sat, Oct 25 - Mon, Oct 27
Delta Logo
5:15 am - 12:14 pmEUG-ONT
6h 59m1 stop
Delta Logo
1:15 pm - 11:14 pmONT-EUG
9h 59m2 stops
$254Delta
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Wed, Oct 22 - Sat, Oct 25
Alaska Airlines Logo
5:42 pm - 12:03 amEUG-ONT
6h 21m1 stop
Alaska Airlines Logo
7:10 am - 11:29 amONT-EUG
4h 19m1 stop
$258Alaska Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 17
Delta Logo
7:00 am - 3:53 pmEUG-ONT
8h 53m2 stops
Delta Logo
1:20 pm - 11:13 pmONT-EUG
9h 53m2 stops
$259Delta
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Sat, Nov 8 - Tue, Nov 11
Alaska Airlines Logo
8:41 am - 3:17 pmEUG-ONT
6h 36m1 stop
Alaska Airlines Logo
7:20 am - 11:37 amONT-EUG
4h 17m1 stop
$273Alaska Airlines
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Thu, Dec 18 - Tue, Dec 23
Southwest Logo
6:20 am - 9:50 amEUG-ONT
3h 30m1 stop
Southwest Logo
6:20 am - 1:55 pmONT-EUG
7h 35m1 stop
$290Southwest
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Thu, Dec 18 - Tue, Dec 23
Southwest Logo
6:20 am - 1:35 pmEUG-ONT
7h 15m2 stops
Southwest Logo
6:20 am - 1:55 pmONT-EUG
7h 35m1 stop
$296Southwest
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Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
6:47 pm - 10:52 pmEUG-ONT
4h 05m1 stop
United Airlines Logo
6:00 am - 12:09 pmONT-EUG
6h 09m1 stop
$299United Airlines
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Mon, Nov 10 - Thu, Nov 13
United Airlines Logo
6:00 am - 12:37 pmEUG-ONT
6h 37m1 stop
United Airlines Logo
6:00 am - 12:09 pmONT-EUG
6h 09m1 stop
$319United Airlines
Find Deal

Everything you should know

Top airlines
Alaska Airlines
Cheapest • from $240 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 25% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$240
Overall average: $306
Alaska Airlines
Wed 11/19Wed 11/26
EUG - ONT • 1 stop
Cheapest one-way
$121
Typical prices: $158-224
Alaska Airlines
Thu 10/30
EUG - ONT • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
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.

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 August, where tickets cost $267 (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 $401 respectively.

Good to know

Low seasonJuly
Cheapest flight$121
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 $121 for a one-way ticket and $240 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, and Star Alliance 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 $333 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 3 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
8.5Crew
7.0Entertainment
8.1Boarding
7.8Comfort
7.1Food
Airline reviews

When I bought my tickets I up great my seats for extra $104 each seats 8A and 8B in the way back from Portland to Palm Springs they gave me the seats 15. I thought it was for round trip same seats . So I was very disappointed ☹️

6.0 GoodAnonymous, Sep 2025PDX - PSP
Read more Alaska Airlines reviews

When I bought my tickets I up great my seats for extra $104 each seats 8A and 8B in the way back from Portland to Palm Springs they gave me the seats 15. I thought it was for round trip same seats . So I was very disappointed ☹️

The vibe and energy of the Alaska staff on ground in Redmond is some of the best we’ve seen!

Staff inside Portland terminal were rude, made us fell rushed and not at all accommodating to seniors. For this alone I will probably never booked from them again.

It was fine—the seats are not very comfortable and the aisles are very narrow. Nothing different from other airlines

Well the flight being delayed multiple time really was frustrating. But the crew and flight was good.

generally good. No snacks or drinks on the flight 3379 from Portland to San Jose, CA. Sad.

Everything except for the lack of a choice of the snack provided was great.

All went smoothly. Only one delay departing Seattle of around 30 minutes.

I like the friendliness of the staff. The food choices were OK. I wish there was more options. The entertainment through the movie portal was alright.

There was a very drunk man behind me who kept talking loudly to no one in particular. He was slurring his words and at times he didn’t know where we were going or whether or not we landed. He was also loudly using a lot of profanity. The attendants didn’t seem to notice or care and in fact continued to serve him alcohol. He was allowed to purchase 4 little bottles.

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.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

The flight was comfortable with the exit row and great service

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.

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

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