Cheap Flights from Ontario International to Eugene

Compare Ontario International to Eugene flight deals

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Flight deals from Ontario International to Eugene

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Eugene Airport? If you want to travel next month, return fares start from $590. Find the lowest prices on one-way and return tickets right here.

Eugene.$451 per passenger.Departing Tue, 15 Sep, returning Tue, 15 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 15 Sep, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Tue, 15 Sep, arriving in Ontario International.Price includes taxes and charges.From $451, select.

Eugene.$452 per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 25 Aug, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Tue, 1 Sep, arriving in Ontario International.Price includes taxes and charges.From $452, select.

Eugene.$512 per passenger.Departing Thu, 6 Aug, returning Wed, 12 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 6 Aug, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Wed, 12 Aug, arriving in Ontario International.Price includes taxes and charges.From $512, select.

Eugene.$572 per passenger.Departing Tue, 28 Jul, returning Tue, 4 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 28 Jul, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Tue, 4 Aug, arriving in Ontario International.Price includes taxes and charges.From $572, select.

Eugene.$572 per passenger.Departing Fri, 23 Oct, returning Wed, 28 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 23 Oct, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Wed, 28 Oct, arriving in Ontario International.Price includes taxes and charges.From $572, select.

Eugene.$590 per passenger.Departing Wed, 1 Jul, returning Fri, 3 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Wed, 1 Jul, arriving in Eugene.Inbound indirect flight with Delta, departs from Eugene on Fri, 3 Jul, arriving in Ontario International.Price includes taxes and charges.From $590, select.

Eugene.$590 per passenger.Departing Tue, 30 Jun, returning Wed, 1 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Tue, 30 Jun, arriving in Eugene.Inbound indirect flight with Delta, departs from Eugene on Wed, 1 Jul, arriving in Ontario International.Price includes taxes and charges.From $590, select.

Eugene.$595 per passenger.Departing Wed, 30 Sep, returning Sun, 4 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 30 Sep, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Sun, 4 Oct, arriving in Ontario International.Price includes taxes and charges.From $595, select.

Eugene.$615 per passenger.Departing Thu, 5 Nov, returning Mon, 9 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 5 Nov, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Mon, 9 Nov, arriving in Ontario International.Price includes taxes and charges.From $615, select.

Eugene.$714 per passenger.Departing Tue, 29 Dec, returning Fri, 1 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 29 Dec, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Fri, 1 Jan, arriving in Ontario International.Price includes taxes and charges.From $714, select.

Eugene.$731 per passenger.Departing Sat, 27 Jun, returning Tue, 30 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Sat, 27 Jun, arriving in Eugene.Inbound indirect flight with Delta, departs from Eugene on Tue, 30 Jun, arriving in Ontario International.Price includes taxes and charges.From $731, select.

Eugene.$735 per passenger.Departing Mon, 11 Jan, returning Sun, 17 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 11 Jan, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Sun, 17 Jan, arriving in Ontario International.Price includes taxes and charges.From $735, select.

Eugene.$748 per passenger.Departing Sat, 13 Feb, returning Mon, 15 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 13 Feb, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Mon, 15 Feb, arriving in Ontario International.Price includes taxes and charges.From $748, select.

Eugene.$803 per passenger.Departing Fri, 18 Dec, returning Wed, 23 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 18 Dec, arriving in Eugene.Inbound indirect flight with Southwest Airlines, departs from Eugene on Wed, 23 Dec, arriving in Ontario International.Price includes taxes and charges.From $803, select.

Find the cheapest month to fly from Ontario International to Eugene

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Eugene flights are currently cheapest in September.

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Ontario International to Eugene: Alternative routes

Compare routes from Ontario International to Eugene below. You may find an airport to fly into that's cheaper, faster, or easier than Eugene.

Eugene

13km from central Eugene

ClosestCheapest

from $451

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Ontario to Eugene: Flight information

The things to know before you go.

Cheapest flight found	$451
Cheapest month to fly	September

Finding cheap flights from Ontario International to Eugene: Frequently asked questions

How much are return flights from Ontario International to Eugene?

The best price we found for a return flight from Ontario International to Eugene is $451. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Ontario International to Eugene?

Currently, there are no airlines that fly direct from Ontario International to Eugene. But we found flights with one or more stops from $451.

How many flights are there a week from Ontario International to Eugene?

As of June 2026, there are no flights flying from Ontario International to Eugene.

When is the cheapest time to fly from Ontario International to Eugene?

The cheapest month to fly from Ontario International to Eugene is usually September.

Which upcoming date is cheapest to fly from Ontario International Airport to Eugene Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Eugene Airport on Tuesday, 15 September 2026.

Can I get a direct flight from Ontario International Airport to Eugene Airport?

No airlines currently offer direct flights between Ontario International Airport and Eugene Airport. Most routes have one or more stops.

How can I find the best flight deal to Eugene?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Eugene but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Eugene?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Eugene is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Ontario International Airport to Eugene with?

Currently, Southwest Airlines offers the cheapest flight tickets to Eugene.

Flying from Ontario International Airport (ONT) to Eugene Airport (EUG): what you need to know

Give yourself enough time to catch your ONT to EUG flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.
Travelling during a peak month such as July? Public holidays and other high seasons can result in longer lines and delays at security. Be extra cautious and get there up to four hours ahead of international flights and two hours before domestic departures.
Consider adding a stopover when booking your ticket from Ontario International Airport to Eugene Airport. Simply deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Check out these options between ONT and EUG:
- San Francisco International Airport
- Salt Lake City Airport
- Sacramento International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Eugene Airport (EUG)

$226 is currently the lowest price for a one-way Ontario International Airport to Eugene Airport flight. A return flight starts at $451. These prices may change depending on demand.
To score cheap tickets from ONT to EUG, book early. Airlines usually offer their most competitively priced fares when flights are first made available.
Finding cheap flights from Ontario International Airport to Eugene Airport is easy if you're flexible with your travel dates. Use the 'Whole month' function to see the lowest fares across the month and score a great deal.
Landing cheap flights from ONT to EUG is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when a new deal comes up.
Tailor your flights with filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Ontario International Airport to Eugene Airport.

Handy information about Ontario International Airport (ONT)

ONT is located at 2900 E. Airport Drive.
Ontario International Airport scores high marks for on-time performance. 83% of flights that take off from ONT arrive at their destination as scheduled.
To reach Ontario International Airport from central Ontario, it'll take around 15 minutes if you're travelling by car. Of course, this depends on traffic conditions. It's approximately 10 kilometres from the airport to the city centre.
Expect a trip time of about 45 minutes on public transport.
Catching an early flight from Ontario International Airport to Eugene Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays close to ONT:

Arriving at Eugene Airport (EUG)

Get off your Ontario International Airport to Eugene Airport flight and be relaxing in your hotel bed shortly after. If you're looking for a handy option that's not too far from EUG, head for Hampton Inn Eugene.
Go where the road takes you with a Eugene Airport rental car. Book your wheels from Dollar, Budget or Hertz and venture far and wide through Eugene and beyond.
To get the best deal, reserve your vehicle from Eugene Airport about three weeks ahead.

Getting from Eugene Airport (EUG) to central Eugene

EUG is located at 28801 Douglas Dr.
Eugene Airport is roughly 11 kilometres from the centre of Eugene. The drive time takes around 20 minutes.
Travelling to the centre on public transport will take you roughly 35 minutes.

When to fly to Eugene Airport (EUG)

The quietest month for a flight from Ontario International Airport to Eugene Airport is March, while September is the busiest. Choose the ideal time to go to Eugene based on whether you prefer a faster pace or a more relaxed vibe.
When booking your flight from Ontario International Airport to Eugene Airport, consider the kind of weather you enjoy. August is the warmest month in Eugene, with the temperature ranging from 9ºC to 31ºC.
Look for cheap tickets from ONT to EUG in February if you like cooler conditions. Temperatures are at their lowest around then, ranging between -1ºC and 13ºC on average.

Explore more of the United States

Eugene has plenty to offer, but there are so many other corners of the United States you should also see. About 402 kilometres north of Eugene, a trip to Seattle will keep you busy. Don't miss top attractions like Space Needle, Pike Place Market and Seattle Skyline.
Portland is another essential stop in the United States and is around 161 kilometres north of Eugene. No journey is complete without visiting Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.