Which airport is the most popular layover for flights between Ontario and Eugene?

Denver (DEN) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Ontario to Eugene?

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 5h 00m.

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.

Which layover airport offers the lowest fares from Ontario to Eugene?

Flights via Seattle (SEA) offer the lowest average round-trip price of $156.

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

Delta, United Airlines, and Southwest are the most popular carriers operating from Ontario to Eugene

Which layover airport has the shortest connection time from Ontario to Eugene?

Seattle (SEA) has the shortest average layover time for this route: 0h 50m.

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 October 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.

$145 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.

3:10 pm - 9:25 pmONT Ontario-EUG Eugene

6h 15m1 stop Sacramento Intl

6:15 am - 11:50 amEUG Eugene-ONT Ontario

5h 35m1 stop Denver Intl

$289Southwest

Tue, Oct 27 - Sat, Oct 31

5:03 pm - 10:17 pmONT Ontario-EUG Eugene

5h 14m1 stop Salt Lake City

5:20 am - 12:17 pmEUG Eugene-ONT Ontario

6h 57m1 stop Salt Lake City

$289Delta

Sat, Nov 7 - Sat, Nov 14

1:22 pm - 9:12 pmONT Ontario-EUG Eugene

7h 50m1 stop Denver Intl

12:59 pm - 8:51 pmEUG Eugene-ONT Ontario

7h 52m1 stop Denver Intl

$289United Airlines

Sat, Oct 24 - Wed, Oct 28

7:00 am - 1:00 pmONT Ontario-EUG Eugene

6h 00m1 stop Seattle/Tacoma Intl

6:08 am - 11:17 amEUG Eugene-ONT Ontario

5h 09m1 stop Seattle/Tacoma Intl

$289Delta

Tue, Nov 10 - Tue, Nov 17

3:10 pm - 9:25 pmONT Ontario-EUG Eugene

6h 15m1 stop Sacramento Intl

7:15 am - 5:00 pmEUG Eugene-ONT Ontario

9h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$294Southwest

Tue, Oct 27 - Sat, Oct 31

1:55 pm - 10:25 pmONT Ontario-EUG Eugene

8h 30m1 stop Denver Intl

11:15 am - 8:40 pmEUG Eugene-ONT Ontario

9h 25m2 stops San Diego Las Vegas Harry Reid Intl

$294Southwest

Tue, Nov 10 - Tue, Nov 17

5:45 pm - 9:25 pmONT Ontario-EUG Eugene

3h 40m1 stop Sacramento Intl

7:15 am - 3:50 pmEUG Eugene-ONT Ontario

8h 35m2 stops Las Vegas Harry Reid Intl Oakland

$294Southwest

Tue, Oct 27 - Sat, Oct 31

6:00 am - 12:55 pmONT Ontario-EUG Eugene

6h 55m1 stop Seattle/Tacoma Intl

1:32 pm - 6:17 pmEUG Eugene-ONT Ontario

4h 45m1 stop Seattle/Tacoma Intl

$330Alaska Airlines

Wed, Nov 4 - Sat, Nov 7

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

4h 25m1 stop Portland

1:32 pm - 6:17 pmEUG Eugene-ONT Ontario

4h 45m1 stop Seattle/Tacoma Intl

$343Alaska Airlines

Fri, Nov 13 - Sat, Nov 14

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

7h 45m1 stop Seattle/Tacoma Intl

1:32 pm - 6:17 pmEUG Eugene-ONT Ontario

4h 45m1 stop Seattle/Tacoma Intl

$343Alaska Airlines

Mon, Nov 9 - Tue, Nov 10

Cheap last minute flights

Enter your travel dates to find the best prices.

11:56 am - 5:01 pmONT Ontario-EUG Eugene

5h 05m1 stop Seattle/Tacoma Intl

4:41 pm - 10:11 pmEUG Eugene-ONT Ontario

5h 30m1 stop Salt Lake City

$438Delta

Tue, Oct 20 - Sat, Oct 24

6:00 pm - 10:49 pmONT Ontario-EUG Eugene

4h 49m1 stop Seattle/Tacoma Intl

4:41 pm - 10:11 pmEUG Eugene-ONT Ontario

5h 30m1 stop Salt Lake City

$438Delta

Sat, Oct 17 - Sat, Oct 24

5:03 pm - 11:49 pmONT Ontario-EUG Eugene

6h 46m1 stop Salt Lake City

6:05 am - 11:16 amEUG Eugene-ONT Ontario

5h 11m1 stop Seattle/Tacoma Intl

$478Delta

Tue, Oct 20 - Sun, Oct 25

5:03 pm - 10:17 pmONT Ontario-EUG Eugene

5h 14m1 stop Salt Lake City

6:05 am - 11:16 amEUG Eugene-ONT Ontario

5h 11m1 stop Seattle/Tacoma Intl

$478Delta

Sat, Oct 17 - Sun, Oct 25

7:25 am - 12:06 pmONT Ontario-EUG Eugene

4h 41m1 stop Portland

4:02 pm - 8:15 pmEUG Eugene-ONT Ontario

4h 13m1 stop Portland

$581Alaska Airlines

Tue, Oct 20 - Tue, Oct 20

7:25 am - 12:06 pmONT Ontario-EUG Eugene

4h 41m1 stop Portland

4:02 pm - 8:15 pmEUG Eugene-ONT Ontario

4h 13m1 stop Portland

$581Alaska Airlines

Sat, Oct 17 - Sat, Oct 17

7:25 am - 12:06 pmONT Ontario-EUG Eugene

4h 41m1 stop Portland

4:02 pm - 8:15 pmEUG Eugene-ONT Ontario

4h 13m1 stop Portland

$585Alaska Airlines

Sat, Oct 17 - Tue, Oct 20

5:30 am - 1:55 pmONT Ontario-EUG Eugene

8h 25m2 stops Las Vegas Harry Reid Intl San Diego

2:30 pm - 10:20 pmEUG Eugene-ONT Ontario

7h 50m1 stop Denver Intl

$656Southwest

Mon, Oct 19 - Fri, Oct 23

5:30 am - 12:30 pmONT Ontario-EUG Eugene

7h 00m2 stops Las Vegas Harry Reid Intl San Jose

4:05 pm - 11:50 pmEUG Eugene-ONT Ontario

7h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$661Southwest

Mon, Oct 19 - Fri, Oct 23

5:45 am - 12:15 pmONT Ontario-EUG Eugene

6h 30m1 stop Las Vegas Harry Reid Intl

5:10 am - 11:15 amEUG Eugene-ONT Ontario

6h 05m1 stop Sacramento Intl

$675Southwest

Sat, Oct 17 - Mon, Oct 19

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Southwest flights from Ontario to Eugene

Our best Southwest deals on Ontario to Eugene flight tickets

Southwest

Oct 27

ONT3:10 pmOntario

6h 15m

1 stop

EUG9:25 pmEugene

Oct 31

EUG6:15 amEugene

5h 35m

1 stop

ONT11:50 amOntario

$289

Southwest

Oct 27

ONT5:45 pmOntario

3h 40m

1 stop

EUG9:25 pmEugene

Oct 31

EUG7:15 amEugene

8h 35m

2 stops

ONT3:50 pmOntario

$294

Southwest

Oct 27

ONT7:05 amOntario

8h 45m

2 stops

EUG3:50 pmEugene

Oct 31

EUG7:15 amEugene

8h 35m

2 stops

ONT3:50 pmOntario

$299

Delta flights from Ontario to Eugene

Our best Delta deals on Ontario to Eugene flight tickets

Delta

Dec 5

ONT5:55 pmOntario

5h 07m

1 stop

EUG11:02 pmEugene

Dec 7

EUG6:09 amEugene

5h 08m

1 stop

ONT11:17 amOntario

$303

Delta

Dec 5

ONT5:55 pmOntario

5h 07m

1 stop

EUG11:02 pmEugene

Dec 7

EUG6:09 amEugene

5h 08m

1 stop

ONT11:17 amOntario

$304

Delta

Dec 8

ONT7:00 amOntario

6h 01m

1 stop

EUG1:01 pmEugene

Dec 12

EUG5:43 pmEugene

5h 16m

1 stop

ONT10:59 pmOntario

$316

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 10/27

3:10 pm-9:25 pm

1 stop6h 15m

Eugene

Sat 10/31

6:15 am-11:50 am

1 stop5h 35m

$289

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Sat 11/7

5:03 pm-10:17 pm

1 stop5h 14m

Eugene

Sat 11/14

5:20 am-12:17 pm

1 stop6h 57m

$289

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Sat 10/24

1:22 pm-9:12 pm

1 stop7h 50m

Eugene

Wed 10/28

12:59 pm-8:51 pm

1 stop7h 52m

$289

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 11/10

7:00 am-1:00 pm

1 stop6h 00m

Eugene

Tue 11/17

6:08 am-11:17 am

1 stop5h 09m

$289

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 10/27

3:10 pm-9:25 pm

1 stop6h 15m

Eugene

Sat 10/31

7:15 am-5:00 pm

2 stops9h 45m

$294

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 11/10

1:55 pm-10:25 pm

1 stop8h 30m

Eugene

Tue 11/17

11:15 am-8:40 pm

2 stops9h 25m

$294

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Tue 10/27

5:45 pm-9:25 pm

1 stop3h 40m

Eugene

Sat 10/31

7:15 am-3:50 pm

2 stops8h 35m

$294

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 11/4

6:00 am-12:55 pm

1 stop6h 55m

Eugene

Sat 11/7

1:32 pm-6:17 pm

1 stop4h 45m

$330

Quickest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Fri 11/13

5:59 pm-10:24 pm

1 stop4h 25m

Eugene

Sat 11/14

1:32 pm-6:17 pm

1 stop4h 45m

$343

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Mon 11/9

4:09 pm-11:54 pm

1 stop7h 45m

Eugene

Tue 11/10

1:32 pm-6:17 pm

1 stop4h 45m

$343

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

Layovers

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 $288. 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 Saturday, 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $307 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $323 on average. Flights to Eugene from Ontario in the morning 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 October 2026, prices for Ontario to Eugene flights are approximately 0% 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	$145
Fastest flight time	4h 25m
Direct flights	None

The best one-way flight to Eugene from Ontario in the past 72 hours is $145. The best round-trip flight deal from Ontario to Eugene found on momondo in the last 72 hours is $289.

The fastest flight from Ontario to Eugene takes 4h 25m

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 25m 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 October 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 66% of the total bookings. Other popular airlines include Southwest with 34%.

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 13,065 reviews		Search Alaska Airlines flights
Southwest	PriceFrom $265	Free Cancellation	Rating 7.9 4,214 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 $145

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 11/4. 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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Southwest flights from Ontario to Eugene

Our best Southwest deals on Ontario to Eugene flight tickets

Delta flights from Ontario to Eugene

Our best Delta 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 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?

Which airport is the most popular layover for flights between Ontario and Eugene?

Which layover airport offers the lowest fares from Ontario to Eugene?

Which layover airport has the shortest travel time from Ontario to Eugene?

Which layover airport has the shortest connection time from Ontario 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.

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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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Popular flights according to clicks in the last 7 days on momondo

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