ONT - EUG

$154 Find Cheap Flights from Ontario to Eugene - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Eugene departing on 8/4. 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 Eugene

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

Cheapest round-trip
$315
Typical prices: $248-$178
American Airlines
Sat 8/15Sat 8/22
ONT - EUG • 1 stop
Cheapest one-way
$154
Alaska Airlines
Tue 8/4
ONT - EUG • 1 stop
Top airlines
Cheapest • from $315 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Eugene. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $207 (round-trip)
Shortest trip • 3h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Eugene!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Eugene (ONT-EUG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Eugene 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 Ontario to Eugene

Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
12:59 pm - 8:09 pm
ONT
-
EUG
7h 10m
1 stop
American Airlines Logo
5:24 am - 12:03 pm
EUG
-
ONT
6h 39m
1 stop
$315American Airlines
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
4:20 pm - 7:50 pm
ONT
-
EUG
3h 30m
1 stop
Southwest Logo
11:45 am - 8:05 pm
EUG
-
ONT
8h 20m
2 stops
$320Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
5:50 am - 1:20 pm
ONT
-
EUG
7h 30m
2 stops
Southwest Logo
11:45 am - 6:20 pm
EUG
-
ONT
6h 35m
2 stops
$325Southwest
Wed, Sep 16 - Fri, Sep 18
Southwest Logo
1:50 pm - 10:30 pm
ONT
-
EUG
8h 40m
1 stop
Southwest Logo
12:20 pm - 7:20 pm
EUG
-
ONT
7h 00m
1 stop
$326Southwest
Sat, Aug 29 - Mon, Aug 31
Southwest Logo
5:40 am - 12:15 pm
ONT
-
EUG
6h 35m
2 stops
Southwest Logo
12:20 pm - 7:20 pm
EUG
-
ONT
7h 00m
1 stop
$329Southwest
Wed, Sep 16 - Fri, Sep 18
Southwest Logo
5:45 am - 11:45 am
ONT
-
EUG
6h 00m
2 stops
Southwest Logo
6:40 am - 2:00 pm
EUG
-
ONT
7h 20m
1 stop
$331Southwest
Tue, Jul 7 - Wed, Jul 15
Delta Logo
6:01 pm - 11:51 pm
ONT
-
EUG
5h 50m
1 stop
Delta Logo
12:32 pm - 5:21 pm
EUG
-
ONT
4h 49m
1 stop
$333Delta
Sat, Aug 29 - Mon, Aug 31
Southwest Logo
11:00 am - 7:50 pm
ONT
-
EUG
8h 50m
2 stops
Southwest Logo
12:20 pm - 7:25 pm
EUG
-
ONT
7h 05m
2 stops
$334Southwest
Wed, Aug 26 - Wed, Sep 9
Delta Logo
9:43 am - 4:03 pm
ONT
-
EUG
6h 20m
1 stop
Delta Logo
5:51 pm - 10:40 pm
EUG
-
ONT
4h 49m
1 stop
$335Delta
Wed, Sep 16 - Fri, Sep 18
Southwest Logo
5:45 am - 2:05 pm
ONT
-
EUG
8h 20m
2 stops
Southwest Logo
1:15 pm - 9:15 pm
EUG
-
ONT
8h 00m
2 stops
$336Southwest
Booking Insights

KAYAK's insights & trends for Ontario to Eugene flights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Eugene, 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 Ontario to Eugene is February, where tickets cost $197 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $391 and $382 respectively.

Good to know

Low seasonMarch
Cheapest flight$154
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Ontario to Eugene

When to book flights from Ontario to Eugene

Are your dates flexible? Find out the best times to travel from Ontario to Eugene 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 Ontario to Eugene

  • What are some common layovers for flights from Ontario to Eugene?

    Flights from Ontario to Eugene typically have one or two stops in various cities which are dependent on the airline you opt for. Some of these layovers include Seattle (SEA), San Francisco (SFO), Salt Lake City (SLC), Phoenix (PHX), Las Vegas (LAS), and Oakland (OAK).

  • What is the luggage allowance on flights from Ontario to Eugene with Alaska Airlines?

    The luggage allowance on flights from Ontario to Eugene with Alaska Airlines varies depending on the fare type chosen by the passenger. For the saver fare, passengers are allowed to bring one personal item and one carry-on bag for free. Checked luggage will incur a fee. For the main fare, passengers are allowed to bring one personal item, one carry-on bag, and two checked bags for free. Any additional bags will incur a fee of $100 each.

  • Which airlines offer flights from Ontario to Eugene with lower carbon emissions?

    Delta is committed to reducing its carbon emissions and has implemented several measures to achieve this goal. The airline has made significant investments in modernizing its fleet by retiring older, less fuel-efficient aircraft and replacing them with newer, more environmentally-friendly planes including for flights from Ontario to Eugene.

  • Does United Airlines allow advanced seat selection for flights from Ontario to Eugene?

    United Airlines allows advanced seat selection for flights from Ontario to Eugene. Economy and Economy Plus fares both offer advanced seat selection options. Passengers in these fare classes can select their seats at the time of booking or during the check-in process free of charge.

  • What is the cheapest flight from Ontario to Eugene?

    In the last 5 days, the lowest price for a flight from Ontario to Eugene was $154 for a one-way ticket and $315 for a round-trip.

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

    No

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

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

  • Which airline alliances offer flights from Ontario to Eugene?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Eugene are Southwest and Alaska Airlines. With an average price for the route of $367 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $382 and an overall rating of 7.9.

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

    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 Ontario to Eugene.

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

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

    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 Eugene with an airline and back to Ontario with another airline. Booking your flights between Ontario and EUG 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 Ontario to Eugene?

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

KAYAK’s top tips for finding a cheap flight from Ontario to Eugene

  • Pet owners looking for pet-friendly flights from Ontario (ONT) to Eugene (EUG) can book with Southwest Airlines. Southwest accepts only dogs and cats, and the animals must be at least 8 weeks old. The combined weight of the pet and carrier must not exceed 20 lb.
  • Ontario International Airport (ONT) has two terminals. Terminal 2 serves all domestic flights operated by Southwest Airlines. It has 14 gates, numbered 201 to 214. Terminal 4 handles all international and some domestic flights, including those operated by Delta, American Airlines, Alaska Airlines, and United. It has 14 gates, numbered 401 to 414.
  • American Airlines offers priority boarding for families with children under two years of age on flights from Ontario (ONT) to Eugene (EUG). The airline offers a range of in-flight entertainment options and also offers child-friendly entertainment options with a dedicated Kids Zone category that includes animated movies and games.
  • Alaska Airlines provides wheelchair assistance for passengers with reduced mobility at the airport. Passengers can request a wheelchair when booking their ticket. The airline also offers special seating accommodations on flights from Ontario (ONT) to Eugene (EUG) and arrangements may include seats with additional leg space or bulkhead seating.
  • Eugene Airport (EUG) is located about 7 miles northwest of the city center. The Lane Transit District (LTD) bus service operates various routes around Eugene, including to and from the airport. Passengers can catch the bus outside of the terminal building. The Route 95 bus runs from the airport to the downtown Eugene bus station with stops at various locations. Taxis are also available outside the terminal.

Reviews of the top 5 airlines serving from Ontario to Eugene

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Eugene. 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 Ontario to Eugene? 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 12517 reviews
7.1Food
8.1Boarding
7.8Comfort
7.0Entertainment
8.5Crew
Airline reviews

It was a very short flight so there really wasn’t any entertainment my. The little pretzels were good though and the cabin crew was awesome.

10.0 ExcellentAnonymous, Jun 2026
LAX - EUG
Read more Alaska Airlines reviews

It was a very short flight so there really wasn’t any entertainment my. The little pretzels were good though and the cabin crew was awesome.

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

Flight delayed Didn’t send second leg of trip itemerary First class was fair, but not great.

Short trip, was nice to have a drink on the short flight still.

Wish there were more complimentary drinks available - only had water and apple juice. Also - no snacks were provided during the flight, but we were offered some items as we exited the plane.

They called me 2 hours before my original flight from SFO was to depart to let me know it was delayed and that I would miss my connection. They then rebooked on a different flight leaving a half hour earlier to a different connecting airport, so that I would not miss my connection. It all worked out and I arrived at my destination without a problem and 15 minutes earlier than the original flight would have. Nice!

Alaska is by far the best airline to fly with 😍

They were flexible and able to get me home a day earlier due to a family members illness. Flight was on time and great friendly crew.

The flight would have been very good , if not dor the constantly screaming baby in the row behind me. Is there a way to isolate people traveling with infants? This is not the first time this has happened to me.

I was on flight #3022 departed from San Diego, California to Medford, Oregon. I had Denise & Damaris as my flight attendants. I didn’t have much interaction with Damaris, but I did with Denise who had, this calm, cool collective voice when she spoke about the emergency exit plans before takeoff. I travel often and I’ve never met a flight attendant that can put you at ease. I felt she respects and takes pride in her position and more airlines need to adopt the integrity and respect that she has for Alaska Airlines. Debbie

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

It was as expected and I was grateful for the wheel chair help and ease of use.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

Service was professional and quick. Premium economy seat was comfortable given the class

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

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

Information on your arrival and departure airports