ONT - EUG

$129 Find Cheap Flights from Ontario to Eugene

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 6/3. 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
$242
Typical prices: $372-$194
Multiple Airlines
Wed 6/3Sun 6/7
ONT - EUG • 1 stop
Cheapest one-way
$129
Typical prices: $185-$314
Multiple Airlines
Wed 6/3
ONT - EUG • 1 stop
Top airlines
Cheapest • from $263 (round-trip)
Best reviews • 8.0 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 50m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% 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

Wed, Jun 3 - Sun, Jun 7
Multiple Airlines Logo
1:39 pm - 2:26 pm
ONT
-
EUG
24h 47m
1 stop
Multiple Airlines Logo
9:08 pm - 3:09 pm
EUG
-
ONT
18h 01m
1 stop
$242Multiple Airlines
Thu, May 28 - Fri, May 29
Delta Logo
6:45 am - 12:55 pm
ONT
-
EUG
6h 10m
1 stop
Delta Logo
5:41 pm - 12:35 pm
EUG
-
ONT
18h 54m
1 stop
$263Delta
Fri, May 29 - Tue, Jun 2
Delta Logo
1:29 pm - 11:50 pm
ONT
-
EUG
10h 21m
2 stops
Delta Logo
6:15 am - 11:10 am
EUG
-
ONT
4h 55m
1 stop
$268Delta
Fri, May 29 - Tue, Jun 2
Delta Logo
1:29 pm - 11:50 pm
ONT
-
EUG
10h 21m
2 stops
Delta Logo
12:35 pm - 11:34 pm
EUG
-
ONT
10h 59m
2 stops
$273Delta
Wed, May 27 - Sun, May 31
Alaska Airlines Logo
6:00 am - 3:23 pm
ONT
-
EUG
9h 23m
1 stop
Alaska Airlines Logo
7:59 pm - 11:10 am
EUG
-
ONT
15h 11m
1 stop
$283Alaska Airlines
Fri, May 29 - Thu, Jun 4
Alaska Airlines Logo
7:41 pm - 3:31 pm
ONT
-
EUG
19h 50m
1 stop
Alaska Airlines Logo
7:59 pm - 11:10 am
EUG
-
ONT
15h 11m
1 stop
$298Alaska Airlines
Thu, Jun 4 - Sun, Jun 7
Alaska Airlines Logo
7:41 pm - 9:41 am
ONT
-
EUG
14h 00m
1 stop
Alaska Airlines Logo
7:59 pm - 11:10 am
EUG
-
ONT
15h 11m
1 stop
$303Alaska Airlines
Sat, May 30 - Tue, Jun 2
Alaska Airlines Logo
5:57 pm - 3:31 pm
ONT
-
EUG
21h 34m
1 stop
Alaska Airlines Logo
4:08 pm - 6:47 pm
EUG
-
ONT
26h 39m
1 stop
$313Alaska Airlines
Wed, Jun 3 - Sun, Jun 7
Multiple Airlines Logo
8:17 pm - 2:26 pm
ONT
-
EUG
18h 09m
2 stops
Multiple Airlines Logo
9:08 pm - 3:09 pm
EUG
-
ONT
18h 01m
1 stop
$315Multiple Airlines
Wed, May 27 - Wed, May 27
Alaska Airlines Logo
7:00 am - 11:31 am
ONT
-
EUG
4h 31m
1 stop
Alaska Airlines Logo
1:45 pm - 6:47 pm
EUG
-
ONT
5h 02m
1 stop
$317Alaska Airlines
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 June.

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 November, where the average cost of round-trip tickets is $391 and $375 respectively.

Good to know

Low seasonMarch
Cheapest flight$129
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 5% increase in price.
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 3 days, the lowest price for a flight from Ontario to Eugene was $129 for a one-way ticket and $242 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 $366 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 $331 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.
8.0
SouthwestOverall score based on 4295 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

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

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

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

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

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

My daughter has anxiety and became nauseous after boarding the plane and before take off. She went to the plane bathroom and ended up having to vomit, and your staff promptly removed us from the flight. We explained that it was due to my daughter’s anxiety, and that the condition would not continue in the air, but they removed us anyway. We have flown many many times before on many different airlines and my daughter’s anxiety has resulted in nausea and sickness before takeoff, and every airline has been accommodating and professional. This is was our first time flying with your airline, and also the first time we have ever been removed from a flight. This was the worst service we have ever experienced. This was a special surprise trip we gifted to my daughter for graduating college. I had also paid to upgrade the family to first class and sit all together which we had never done before and can’t afford on a normal basis. Our removal from the flight was not only extremely embarrassing, but devastating for my daughter. My daughter and I were removed from the plane and a call was made by your staff to medical personnel, a few questions were asked of my daughter, and then she was magically cleared. All of this took mere minutes. Why this could not have been performed while we were on the plane, or why this could not have been performed off the plane and then us allowed to reboard is beyond me. My wife and youngest daughter continued on the original flight alone and were very upset and crying due to the situation, yet the staff did nothing to console or assist them. My wife states that upon arrival in Portland and as they were exiting the plane, one of the stewardesses involved said “byyyyeeeee” to them sarcastically and laughed. Myself and my oldest daughter had to wait 4 hours for an alternate flight and were sat in regular seats because our first class seat purchase could not be honored. My wife wasn’t allowed to pick up our rental car and had to wait 4 hours with our luggage until I arrived. The delay prevented us from being able to carry out planned events and ruined the first day of our trip. Upon explaining all of this to your customer service, we received no sympathy, assistance, or compensation other than your staff submitting a request for a reimbursement of my and my daughters first class upgrade cost. When checking in early for our flight back home, the luggage cost for myself and my eldest daughter was no longer discounted as it was for my wife and youngest daughter. Customer service once again could not assist me over the phone and rectify what should have been a minor adjustment. Instead they stated I would have to wait until we physically checked bags in at the airport and then ask staff to adjust the luggage cost. With everything else we had experienced, I was not going to leave that to chance and instead paid full price for the luggage ahead of time. Or experience with Alaska Airlines was a complete disaster and I am baffled at the lack of empathy and assistance from your staff. I’m not sure of what else to say other than the fact that unless we are compensated by Alaska Airlines in some form to offset the horrendous service we received, we will be relaying our experience to family and friends and on social media, and doing all we can to urge everyone to avoid utilizing your services.

I got an email 3 hours before the flight letting me know it got canceled

Boarding was easy and quick. Staff was very friendly. Service of snacks and drinks by staff was outstanding.

It was ok! Not fond of sitting in middle seat. Tried to upgrade with my Atmos card but it was a new account and they weren’t able to look up my account details.

Flights were on time, which made making connections do much better. Well organized

My only complaint was how far it was from plane to baggage claim

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.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

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

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

OK, we were delayed and had to de plane and reboard.

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.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

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

Information on your arrival and departure airports