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Cheap flights from Ontario to Eugene from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Eugene departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to Eugene

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
10:33 am - 6:40 pm
ONT
-
EUG
8h 07m
1 stop
Alaska Airlines Logo
7:17 pm - 9:39 am
EUG
-
ONT
14h 22m
1 stop
$226Alaska Airlines
Thu, Apr 16 - Mon, Apr 20
Delta Logo
5:55 pm - 11:58 pm
ONT
-
EUG
6h 03m
1 stop
Delta Logo
6:30 am - 1:39 pm
EUG
-
ONT
7h 09m
1 stop
$244Delta
Sat, May 2 - Sun, May 3
Delta Logo
11:53 am - 11:58 pm
ONT
-
EUG
12h 05m
1 stop
Delta Logo
6:30 am - 1:39 pm
EUG
-
ONT
7h 09m
1 stop
$247Delta
Thu, Apr 16 - Tue, Apr 21
Alaska Airlines Logo
3:26 pm - 11:59 pm
ONT
-
EUG
8h 33m
1 stop
Alaska Airlines Logo
8:38 pm - 9:45 am
EUG
-
ONT
13h 07m
1 stop
$256Alaska Airlines
Fri, May 1 - Sat, May 2
Delta Logo
5:05 pm - 11:47 pm
ONT
-
EUG
6h 42m
1 stop
Delta Logo
5:44 pm - 10:37 pm
EUG
-
ONT
4h 53m
1 stop
$262Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
5:59 pm - 10:35 pm
ONT
-
EUG
4h 36m
1 stop
Delta Logo
6:30 am - 11:13 am
EUG
-
ONT
4h 43m
1 stop
$268Delta
Sat, Apr 18 - Wed, Apr 22
Delta Logo
5:59 pm - 10:35 pm
ONT
-
EUG
4h 36m
1 stop
Delta Logo
6:30 am - 11:13 am
EUG
-
ONT
4h 43m
1 stop
$272Delta
Sat, Apr 18 - Wed, Apr 22
Alaska Airlines Logo
6:25 pm - 6:40 pm
ONT
-
EUG
24h 15m
2 stops
Alaska Airlines Logo
7:17 pm - 9:39 am
EUG
-
ONT
14h 22m
1 stop
$275Alaska Airlines
Thu, Apr 16 - Mon, Apr 20
Delta Logo
5:09 pm - 10:46 pm
ONT
-
EUG
5h 37m
1 stop
Delta Logo
5:44 pm - 10:37 pm
EUG
-
ONT
4h 53m
1 stop
$277Delta
Tue, Apr 7 - Tue, Apr 14
Delta Logo
5:05 pm - 11:47 pm
ONT
-
EUG
6h 42m
1 stop
Delta Logo
6:30 am - 4:25 pm
EUG
-
ONT
9h 55m
2 stops
$279Delta
Fri, May 1 - Sat, May 2

Alaska Airlines flights from Ontario to Eugene

Our best Alaska Airlines deals on Ontario to Eugene flight tickets
Alaska Airlines
Apr 16
ONT10:33 amOntario
8h 07m
1 stop
EUG6:40 pmEugene
Apr 20
EUG7:17 pmEugene
14h 22m
1 stop
ONT9:39 amOntario
$226
Alaska Airlines
May 16
ONT11:15 amOntario
11h 35m
1 stop
EUG10:50 pmEugene
May 19
EUG7:59 pmEugene
22h 48m
1 stop
ONT6:47 pmOntario
$235
Alaska Airlines
May 1
ONT3:26 pmOntario
8h 33m
1 stop
EUG11:59 pmEugene
May 2
EUG8:38 pmEugene
13h 07m
1 stop
ONT9:45 amOntario
$256

Southwest flights from Ontario to Eugene

Our best Southwest deals on Ontario to Eugene flight tickets
Southwest
May 16
ONT6:20 pmOntario
4h 20m
1 stop
EUG10:40 pmEugene
May 19
EUG6:35 amEugene
8h 30m
2 stops
ONT3:05 pmOntario
$282
Southwest
Apr 9
ONT5:30 pmOntario
4h 20m
1 stop
EUG9:50 pmEugene
Apr 14
EUG11:20 amEugene
7h 35m
2 stops
ONT6:55 pmOntario
$288
Southwest
Apr 9
ONT4:25 pmOntario
5h 25m
1 stop
EUG9:50 pmEugene
Apr 13
EUG5:10 amEugene
5h 15m
1 stop
ONT10:25 amOntario
$289

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Eugene that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 18, 2026.
Use the filters below to find and compare flights from Ontario to Eugene that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Thu 4/16

10:33 am-6:40 pm

1 stop8h 07m

Eugene

Mon 4/20

7:17 pm-9:39 am

1 stop14h 22m

$226

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 5/2

5:55 pm-11:58 pm

1 stop6h 03m

Eugene

Sun 5/3

6:30 am-1:39 pm

1 stop7h 09m

$244

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Thu 4/16

11:53 am-11:58 pm

1 stop12h 05m

Eugene

Tue 4/21

6:30 am-1:39 pm

1 stop7h 09m

$247

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Fri 5/1

3:26 pm-11:59 pm

1 stop8h 33m

Eugene

Sat 5/2

8:38 pm-9:45 am

1 stop13h 07m

$256

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Tue 4/14

5:05 pm-11:47 pm

1 stop6h 42m

Eugene

Tue 4/21

5:44 pm-10:37 pm

1 stop4h 53m

$262
Quickest round-trip

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 4/18

5:59 pm-10:35 pm

1 stop4h 36m

Eugene

Wed 4/22

6:30 am-11:13 am

1 stop4h 43m

$268

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 4/18

5:59 pm-10:35 pm

1 stop4h 36m

Eugene

Wed 4/22

6:30 am-11:13 am

1 stop4h 43m

$272

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Thu 4/16

6:25 pm-6:40 pm

2 stops24h 15m

Eugene

Mon 4/20

7:17 pm-9:39 am

1 stop14h 22m

$275

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Tue 4/7

5:09 pm-10:46 pm

1 stop5h 37m

Eugene

Tue 4/14

5:44 pm-10:37 pm

1 stop4h 53m

$277

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Fri 5/1

5:05 pm-11:47 pm

1 stop6h 42m

Eugene

Sat 5/2

6:30 am-4:25 pm

2 stops9h 55m

$279

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Eugene from

How to get the cheapest flight ticket from Ontario to Eugene

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Eugene?

In general, February is the cheapest month to fly from Ontario to Eugene. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $197. If you don’t want to visit Eugene in February, then you should wait until August to fly from Ontario, when ticket prices are also cheap, with an average price of $242.

What is the cheapest day to depart on your flight to Eugene?

According to our data, Wednesday is the cheapest day to fly to Eugene from Ontario. The lowest ticket price found for a Wednesday departure recently was $247. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Eugene is Sunday, with ticket prices averaging around $367.

What is the cheapest time of day to depart on your flight to Eugene?

Flying to Eugene from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $288 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $327 on average. Flights to Eugene from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Ontario to Eugene flight prices changed over time?

As of March 2026, prices for Ontario to Eugene flights are approximately 119% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Eugene

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Eugene according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Eugene (ONT to EUG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Eugene

Fastest flight time

3h 58m

Direct flights

None
The fastest flight from Ontario to Eugene takes 3h 58m
There are no direct flights from Ontario to Eugene. There are no popular flight routes from Ontario to Eugene.
Search flight deals

  • How far is Ontario to Eugene by plane?

    Eugene is 748.3 mi away from Ontario. 3h 58m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Eugene Airport?

    Prices for flights from Ontario Airport to Eugene Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Eugene Airport?

  • How old do you have to be to fly from Ontario Airport to Eugene Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Eugene Airport.

  • What documentation or ID do you need to fly to Eugene Airport?

    The travel and health documents required for your trip to Eugene Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Eugene Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Eugene?

Best airlines flying from Ontario to Eugene

Compare and see reviews for airlines that fly from Ontario to Eugene with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $156Free CancellationRating
7.9
8,288 reviews
Search Delta flights
United AirlinesPriceFrom $180Free CancellationRating
7.4
9,432 reviews
Search United Airlines flights
SouthwestPriceFrom $183Free CancellationRating
8.0
4,320 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $197Free CancellationRating
7.9
12,058 reviews
Search Alaska Airlines flights

Traveling to a place near Eugene?

Book flights to Eugene if you plan to visit one of these locations
Newport
Yachats
Albany
Springfield
Corvallis

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Eugene?

Finding the right flight to Eugene from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Eugene quick and easy, saving you time and money.

Can I find flights from Ontario to Eugene with flexible booking policies on momondo?

Yes. All flights to Eugene from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Eugene?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Eugene.

I’m not ready to book a flight from Ontario to Eugene right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Eugene from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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