What is the cheapest airline that flies from Ontario to Eugene?

Delta and Alaska Airlines are the most popular carriers operating from Ontario to Eugene

What airlines fly to Eugene?

Alaska Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Eugene from Ontario according to our data. Alaska Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Eugene. Keep in mind that there are 7 different airlines that fly to Eugene on a routine basis, so you have a few additional options to choose from.

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?

As of November 2026, there are 2 operators available to choose from 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.

$95 Cheap Flights from Ontario to Eugene in 2026/27

Find the cheapest flights from Ontario to Eugene

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 3:00 pmONT Ontario-EUG Eugene

7h 00m1 stop Las Vegas Harry Reid Intl

3:50 pm - 11:51 amEUG Eugene-ONT Ontario

20h 01m1 stop Las Vegas Harry Reid Intl

$217Multiple Airlines

Thu, Dec 3 - Sun, Dec 6

8:02 am - 8:32 pmONT Ontario-EUG Eugene

12h 30m1 stop Las Vegas Harry Reid Intl

6:04 pm - 7:07 amEUG Eugene-ONT Ontario

37h 03m2 stops Phoenix-Mesa Gateway Las Vegas Harry Reid Intl

$234Multiple Airlines

Thu, Jan 28 - Mon, Feb 1

8:00 am - 3:00 pmONT Ontario-EUG Eugene

7h 00m1 stop Las Vegas Harry Reid Intl

3:50 pm - 11:23 pmEUG Eugene-ONT Ontario

31h 33m2 stops Las Vegas Harry Reid Intl San Francisco

$251Multiple Airlines

Thu, Dec 3 - Sun, Dec 6

2:00 pm - 3:00 pmONT Ontario-EUG Eugene

25h 00m1 stop Las Vegas Harry Reid Intl

3:50 pm - 11:51 amEUG Eugene-ONT Ontario

20h 01m1 stop Las Vegas Harry Reid Intl

$291Multiple Airlines

Wed, Dec 2 - Thu, Dec 10

4:09 pm - 11:54 pmONT Ontario-EUG Eugene

7h 45m1 stop Seattle/Tacoma Intl

4:00 pm - 11:54 pmEUG Eugene-ONT Ontario

7h 54m1 stop Portland

$302Alaska Airlines

Wed, Nov 18 - Thu, Dec 3

4:55 pm - 9:20 pmONT Ontario-EUG Eugene

4h 25m1 stop Sacramento Intl

5:45 am - 2:40 pmEUG Eugene-ONT Ontario

8h 55m1 stop Denver Intl

$306Southwest

Mon, Dec 7 - Thu, Dec 10

10:56 am - 3:24 pmONT Ontario-EUG Eugene

4h 28m1 stop Portland

2:57 pm - 10:41 pmEUG Eugene-ONT Ontario

7h 44m1 stop Seattle/Tacoma Intl

$307Alaska Airlines

Thu, Jan 28 - Mon, Feb 1

4:09 pm - 8:59 pmONT Ontario-EUG Eugene

4h 50m1 stop Seattle/Tacoma Intl

5:27 pm - 11:31 pmEUG Eugene-ONT Ontario

6h 04m1 stop Seattle/Tacoma Intl

$309Alaska Airlines

Tue, Nov 17 - Sat, Nov 21

8:40 am - 1:55 pmONT Ontario-EUG Eugene

5h 15m1 stop Las Vegas Harry Reid Intl

12:30 pm - 6:55 pmEUG Eugene-ONT Ontario

6h 25m1 stop San Jose

$313Southwest

Tue, Dec 15 - Fri, Dec 18

8:40 am - 1:55 pmONT Ontario-EUG Eugene

5h 15m1 stop Las Vegas Harry Reid Intl

6:45 am - 12:50 pmEUG Eugene-ONT Ontario

6h 05m1 stop Sacramento Intl

$313Southwest

Thu, Dec 3 - Tue, Dec 8

Cheap last minute flights

Enter your travel dates to find the best prices.

5:59 pm - 10:24 pmONT Ontario-EUG Eugene

4h 25m1 stop Portland

10:04 am - 3:13 pmEUG Eugene-ONT Ontario

5h 09m1 stop Seattle/Tacoma Intl

$562Alaska Airlines

Mon, Nov 9 - Thu, Nov 19

12:02 pm - 6:01 pmONT Ontario-EUG Eugene

5h 59m1 stop Seattle/Tacoma Intl

10:04 am - 3:13 pmEUG Eugene-ONT Ontario

5h 09m1 stop Seattle/Tacoma Intl

$607Alaska Airlines

Wed, Nov 4 - Sat, Nov 7

6:20 am - 12:56 pmONT Ontario-EUG Eugene

6h 36m1 stop Seattle/Tacoma Intl

5:41 pm - 10:43 pmEUG Eugene-ONT Ontario

5h 02m1 stop Seattle/Tacoma Intl

$607Delta

Wed, Nov 4 - Wed, Nov 4

5:07 pm - 1:35 pmONT Ontario-EUG Eugene

20h 28m1 stop Las Vegas Harry Reid Intl

8:14 pm - 11:16 amEUG Eugene-ONT Ontario

15h 02m1 stop Las Vegas Harry Reid Intl

$658Multiple Airlines

Sat, Nov 7 - Sun, Nov 8

5:07 pm - 1:35 pmONT Ontario-EUG Eugene

20h 28m1 stop Las Vegas Harry Reid Intl

8:14 pm - 11:16 amEUG Eugene-ONT Ontario

15h 02m1 stop Las Vegas Harry Reid Intl

$663Multiple Airlines

Sat, Nov 7 - Sun, Nov 8

2:45 pm - 10:45 pmONT Ontario-EUG Eugene

8h 00m1 stop Denver Intl

1:20 pm - 9:05 pmEUG Eugene-ONT Ontario

7h 45m1 stop Denver Intl

$695Southwest

Thu, Nov 5 - Sat, Nov 7

12:02 pm - 6:01 pmONT Ontario-EUG Eugene

5h 59m1 stop Seattle/Tacoma Intl

10:04 am - 3:13 pmEUG Eugene-ONT Ontario

5h 09m1 stop Seattle/Tacoma Intl

$695Alaska Airlines

Sat, Nov 7 - Sun, Nov 8

4:09 pm - 8:59 pmONT Ontario-EUG Eugene

4h 50m1 stop Seattle/Tacoma Intl

6:06 am - 11:18 amEUG Eugene-ONT Ontario

5h 12m1 stop Seattle/Tacoma Intl

$695Alaska Airlines

Sat, Nov 7 - Sun, Nov 8

4:00 pm - 7:45 pmONT Ontario-EUG Eugene

3h 45m1 stop Sacramento Intl

5:15 am - 10:40 amEUG Eugene-ONT Ontario

5h 25m2 stops Sacramento Intl Las Vegas Harry Reid Intl

$700Southwest

Sat, Nov 7 - Sun, Nov 8

6:25 pm - 11:40 pmONT Ontario-EUG Eugene

5h 15m1 stop Sacramento Intl

6:55 am - 1:30 pmEUG Eugene-ONT Ontario

6h 35m2 stops Sacramento Intl Las Vegas Harry Reid Intl

$700Southwest

Thu, Nov 5 - Sat, Nov 7

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Alaska Airlines flights from Ontario to Eugene

Our best Alaska Airlines deals on Ontario to Eugene flight tickets

Alaska Airlines

Nov 18

ONT4:09 pmOntario

7h 45m

1 stop

EUG11:54 pmEugene

Dec 3

EUG4:00 pmEugene

7h 54m

1 stop

ONT11:54 pmOntario

$302

Alaska Airlines

Jan 28

ONT10:56 amOntario

4h 28m

1 stop

EUG3:24 pmEugene

Feb 1

EUG2:57 pmEugene

7h 44m

1 stop

ONT10:41 pmOntario

$307

Alaska Airlines

Nov 17

ONT4:09 pmOntario

4h 50m

1 stop

EUG8:59 pmEugene

Nov 21

EUG5:27 pmEugene

6h 04m

1 stop

ONT11:31 pmOntario

$309

United Airlines flights from Ontario to Eugene

Our best United Airlines deals on Ontario to Eugene flight tickets

United Airlines

Nov 25

ONT1:29 pmOntario

8h 00m

1 stop

EUG9:29 pmEugene

Dec 5

EUG1:06 pmEugene

8h 05m

1 stop

ONT9:11 pmOntario

$341

United Airlines

Nov 15

ONT5:00 amOntario

8h 25m

1 stop

EUG1:25 pmEugene

Nov 19

EUG5:55 amEugene

6h 34m

1 stop

ONT12:29 pmOntario

$489

United Airlines

Nov 5

ONT5:00 amOntario

8h 25m

1 stop

EUG1:25 pmEugene

Nov 5

EUG4:30 pmEugene

6h 18m

1 stop

ONT10:48 pmOntario

$777

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 12/3

8:00 am-3:00 pm

1 stop7h 00m

Eugene

Sun 12/6

3:50 pm-11:51 am

1 stop20h 01m

$217

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 1/28

8:02 am-8:32 pm

1 stop12h 30m

Eugene

Mon 2/1

6:04 pm-7:07 am

2 stops37h 03m

$234

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 12/3

8:00 am-3:00 pm

1 stop7h 00m

Eugene

Sun 12/6

3:50 pm-11:23 pm

2 stops31h 33m

$251

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 12/2

2:00 pm-3:00 pm

1 stop25h 00m

Eugene

Thu 12/10

3:50 pm-11:51 am

1 stop20h 01m

$291

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 11/18

4:09 pm-11:54 pm

1 stop7h 45m

Eugene

Thu 12/3

4:00 pm-11:54 pm

1 stop7h 54m

$302

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Mon 12/7

4:55 pm-9:20 pm

1 stop4h 25m

Eugene

Thu 12/10

5:45 am-2:40 pm

1 stop8h 55m

$306

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 1/28

10:56 am-3:24 pm

1 stop4h 28m

Eugene

Mon 2/1

2:57 pm-10:41 pm

1 stop7h 44m

$307

Quickest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 11/17

4:09 pm-8:59 pm

1 stop4h 50m

Eugene

Sat 11/21

5:27 pm-11:31 pm

1 stop6h 04m

$309

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 12/15

8:40 am-1:55 pm

1 stop5h 15m

Eugene

Fri 12/18

12:30 pm-6:55 pm

1 stop6h 25m

$313

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 12/3

8:40 am-1:55 pm

1 stop5h 15m

Eugene

Tue 12/8

6:45 am-12:50 pm

1 stop6h 05m

$313

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the typical price of a round-trip flight between Ontario and Eugene?

Prices are currently low for flights on this route.

Typical prices usually range from $288 to $766.
The lowest price recently found on this route was $217.

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 January to fly from Ontario, when ticket prices are also cheap, with an average price of $307.

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 $297. 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 $387.

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

Flying to Eugene from Ontario in the morning is the least expensive time of day to depart. momondo users have found prices as low as $327 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $344 on average. Flights to Eugene from Ontario in the evening 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 November 2026, prices for Ontario to Eugene flights are approximately 3% 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

Best Price Found	$95
Fastest flight time	4h 44m
Direct flights	None

The best one-way flight to Eugene from Ontario in the past 72 hours is $95. The best round-trip flight deal from Ontario to Eugene found on momondo in the last 72 hours is $217.

The fastest flight from Ontario to Eugene takes 4h 44m

There are no direct flights from Ontario to Eugene. There are no popular flight routes from Ontario to Eugene.

Search flight deals

Frequently asked questions about flying from Ontario to Eugene

How far is Ontario to Eugene by plane?
Eugene is 748.3 mi away from Ontario. 4h 44m 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?
As of November 2026, there are 2 operators available to choose from 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?
Based on momondo bookings for flights between Ontario and Eugene, the leading airline is Alaska Airlines, making up 68% of the total bookings. Other popular airlines include Southwest with 32%.

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
Alaska Airlines	PriceFrom $197	Free Cancellation	Rating 7.9 13,137 reviews		Search Alaska Airlines flights
Southwest	PriceFrom $230	Free Cancellation	Rating 8.0 4,220 reviews		Search Southwest flights

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.

An easier way to manage your Eugene trip

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Cheap flights from Ontario to Eugene from $95

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 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Ontario to Eugene

Our best Alaska Airlines deals on Ontario to Eugene flight tickets

United Airlines flights from Ontario to Eugene

Our best United Airlines deals on Ontario to Eugene flight tickets

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How to get the cheapest flight ticket from Ontario to Eugene

What is the typical price of a round-trip flight between Ontario and Eugene?

What is the cheapest month to fly to Eugene?

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

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

How have Ontario to Eugene flight prices changed over time?

What is the cheapest airline that flies from Ontario to Eugene?

What airlines fly to Eugene?

When to book flights from Ontario to Eugene

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Eugene?

Why use momondo?

An easier way to manage your Eugene trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Oregon

Fly your favorite airline to Eugene

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Eugene

List of cabin classes available on flights landing in Eugene. Availability may vary depending on flight origin and airline.

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