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.

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 63% of people opting to fly with this airline when traveling to Eugene. Keep in mind that there are 9 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.

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 is the cheapest airline that flies from Ontario to Eugene?

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

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.

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 August 2026, there are 4 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.

$119 Cheap Flights from Ontario to Eugene in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Eugene

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:08 am - 11:43 amONT Ontario-EUG Eugene

5h 35m1 stop San Francisco

7:25 am - 12:12 pmEUG Eugene-ONT Ontario

4h 47m1 stop San Francisco

$237United Airlines

Fri, Aug 21 - Sun, Aug 23

6:08 am - 11:43 amONT Ontario-EUG Eugene

5h 35m1 stop San Francisco

1:57 pm - 6:11 pmEUG Eugene-ONT Ontario

4h 14m1 stop San Francisco

$237United Airlines

Sun, Aug 23 - Tue, Aug 25

12:59 pm - 8:09 pmONT Ontario-EUG Eugene

7h 10m1 stop Phoenix Sky Harbor Intl

2:07 pm - 9:55 pmEUG Eugene-ONT Ontario

7h 48m1 stop Phoenix Sky Harbor Intl

$237American Airlines

Fri, Aug 28 - Sun, Aug 30

4:07 pm - 11:18 pmONT Ontario-EUG Eugene

7h 11m1 stop Phoenix Sky Harbor Intl

5:24 am - 12:03 pmEUG Eugene-ONT Ontario

6h 39m1 stop Phoenix Sky Harbor Intl

$237American Airlines

Sun, Aug 23 - Tue, Aug 25

7:12 am - 12:48 pmONT Ontario-EUG Eugene

5h 36m1 stop Portland

4:03 pm - 8:24 pmEUG Eugene-ONT Ontario

4h 21m1 stop Portland

$241Alaska Airlines

Wed, Aug 26 - Wed, Aug 26

7:12 am - 12:48 pmONT Ontario-EUG Eugene

5h 36m1 stop Portland

4:03 pm - 8:24 pmEUG Eugene-ONT Ontario

4h 21m1 stop Portland

$241Alaska Airlines

Thu, Aug 27 - Thu, Aug 27

4:45 pm - 9:10 pmONT Ontario-EUG Eugene

4h 25m1 stop Sacramento Intl

5:40 am - 11:25 amEUG Eugene-ONT Ontario

5h 45m2 stops Sacramento Intl Las Vegas Harry Reid Intl

$242Southwest

Wed, Aug 19 - Mon, Aug 24

2:10 pm - 9:10 pmONT Ontario-EUG Eugene

7h 00m2 stops Las Vegas Harry Reid Intl Sacramento Intl

11:20 am - 7:25 pmEUG Eugene-ONT Ontario

8h 05m2 stops San Diego Las Vegas Harry Reid Intl

$247Southwest

Wed, Aug 19 - Mon, Aug 24

3:35 pm - 11:10 pmONT Ontario-EUG Eugene

7h 35m1 stop Seattle/Tacoma Intl

5:43 pm - 10:45 pmEUG Eugene-ONT Ontario

5h 02m1 stop Seattle/Tacoma Intl

$247Delta

Sat, Aug 22 - Sat, Aug 29

6:01 pm - 11:59 pmONT Ontario-EUG Eugene

5h 58m1 stop Seattle/Tacoma Intl

6:10 am - 11:16 amEUG Eugene-ONT Ontario

5h 06m1 stop Seattle/Tacoma Intl

$247Delta

Wed, Aug 26 - Thu, Aug 27

Cheap last minute flights

Enter your travel dates to find the best prices.

1:18 pm - 9:21 pmONT Ontario-EUG Eugene

8h 03m1 stop Denver Intl

7:25 am - 12:12 pmEUG Eugene-ONT Ontario

4h 47m1 stop San Francisco

$567United Airlines

Sat, Aug 8 - Tue, Aug 11

6:02 am - 1:01 pmONT Ontario-EUG Eugene

6h 59m1 stop Seattle/Tacoma Intl

5:43 pm - 11:11 pmEUG Eugene-ONT Ontario

5h 28m1 stop Seattle/Tacoma Intl

$567Alaska Airlines

Sat, Aug 8 - Tue, Aug 11

7:00 am - 11:57 amONT Ontario-EUG Eugene

4h 57m1 stop Portland

5:20 am - 9:56 amEUG Eugene-ONT Ontario

4h 36m1 stop Portland

$655Alaska Airlines

Fri, Aug 7 - Sat, Aug 8

6:39 pm - 10:59 pmONT Ontario-EUG Eugene

4h 20m1 stop San Francisco

1:57 pm - 8:01 pmEUG Eugene-ONT Ontario

6h 04m1 stop San Francisco

$655United Airlines

Fri, Aug 7 - Tue, Aug 11

6:39 pm - 10:59 pmONT Ontario-EUG Eugene

4h 20m1 stop San Francisco

1:57 pm - 8:01 pmEUG Eugene-ONT Ontario

6h 04m1 stop San Francisco

$655United Airlines

Thu, Aug 6 - Tue, Aug 11

12:04 pm - 5:00 pmONT Ontario-EUG Eugene

4h 56m1 stop Seattle/Tacoma Intl

5:20 am - 9:56 amEUG Eugene-ONT Ontario

4h 36m1 stop Portland

$655Alaska Airlines

Fri, Aug 7 - Sat, Aug 8

6:20 am - 1:04 pmONT Ontario-EUG Eugene

6h 44m1 stop Seattle/Tacoma Intl

6:10 am - 4:24 pmEUG Eugene-ONT Ontario

10h 14m2 stops Seattle/Tacoma Intl Salt Lake City

$707Delta

Sat, Aug 8 - Tue, Aug 11

6:01 pm - 11:59 pmONT Ontario-EUG Eugene

5h 58m1 stop Seattle/Tacoma Intl

6:10 am - 11:16 amEUG Eugene-ONT Ontario

5h 06m1 stop Seattle/Tacoma Intl

$743Delta

Thu, Aug 6 - Sun, Aug 9

2:00 pm - 10:40 pmONT Ontario-EUG Eugene

8h 40m1 stop Denver Intl

12:20 pm - 7:25 pmEUG Eugene-ONT Ontario

7h 05m2 stops Denver Intl Las Vegas Harry Reid Intl

$748Southwest

Fri, Aug 7 - Fri, Aug 14

5:40 am - 12:40 pmONT Ontario-EUG Eugene

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

1:15 pm - 8:40 pmEUG Eugene-ONT Ontario

7h 25m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$753Southwest

Fri, Aug 7 - Fri, Aug 14

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Alaska Airlines flights from Ontario to Eugene

Our best Alaska Airlines deals on Ontario to Eugene flight tickets

Alaska Airlines

Aug 26

ONT7:12 amOntario

5h 36m

1 stop

EUG12:48 pmEugene

Aug 26

EUG4:03 pmEugene

4h 21m

1 stop

ONT8:24 pmOntario

$241

Alaska Airlines

Aug 18

ONT7:00 amOntario

4h 57m

1 stop

EUG11:57 amEugene

Aug 20

EUG4:03 pmEugene

4h 21m

1 stop

ONT8:24 pmOntario

$247

Alaska Airlines

Aug 18

ONT5:32 pmOntario

4h 56m

1 stop

EUG10:28 pmEugene

Aug 22

EUG4:03 pmEugene

4h 21m

1 stop

ONT8:24 pmOntario

$282

Delta flights from Ontario to Eugene

Our best Delta deals on Ontario to Eugene flight tickets

Delta

Aug 21

ONT6:01 pmOntario

5h 58m

1 stop

EUG11:59 pmEugene

Aug 24

EUG5:43 pmEugene

5h 02m

1 stop

ONT10:45 pmOntario

$247

Delta

Aug 28

ONT11:56 amOntario

5h 07m

1 stop

EUG5:03 pmEugene

Aug 30

EUG5:20 amEugene

6h 56m

1 stop

ONT12:16 pmOntario

$296

Delta

Aug 8

ONT6:20 amOntario

6h 44m

1 stop

EUG1:04 pmEugene

Aug 11

EUG6:10 amEugene

10h 14m

2 stops

ONT4:24 pmOntario

$707

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Fri 8/21

6:08 am-11:43 am

1 stop5h 35m

Eugene

Sun 8/23

7:25 am-12:12 pm

1 stop4h 47m

$237

Quickest round-trip

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Sun 8/23

6:08 am-11:43 am

1 stop5h 35m

Eugene

Tue 8/25

1:57 pm-6:11 pm

1 stop4h 14m

$237

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Fri 8/28

12:59 pm-8:09 pm

1 stop7h 10m

Eugene

Sun 8/30

2:07 pm-9:55 pm

1 stop7h 48m

$237

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Sun 8/23

4:07 pm-11:18 pm

1 stop7h 11m

Eugene

Tue 8/25

5:24 am-12:03 pm

1 stop6h 39m

$237

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 8/26

7:12 am-12:48 pm

1 stop5h 36m

Eugene

Wed 8/26

4:03 pm-8:24 pm

1 stop4h 21m

$241

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Thu 8/27

7:12 am-12:48 pm

1 stop5h 36m

Eugene

Thu 8/27

4:03 pm-8:24 pm

1 stop4h 21m

$241

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 8/19

4:45 pm-9:10 pm

1 stop4h 25m

Eugene

Mon 8/24

5:40 am-11:25 am

2 stops5h 45m

$242

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 8/19

2:10 pm-9:10 pm

2 stops7h 00m

Eugene

Mon 8/24

11:20 am-7:25 pm

2 stops8h 05m

$247

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Sat 8/22

3:35 pm-11:10 pm

1 stop7h 35m

Eugene

Sat 8/29

5:43 pm-10:45 pm

1 stop5h 02m

$247

OntarioEugene

ONT Ontario - EUG Eugene

ONTEUG

Ontario

Wed 8/26

6:01 pm-11:59 pm

1 stop5h 58m

Eugene

Thu 8/27

6:10 am-11:16 am

1 stop5h 06m

$247

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 October to fly from Ontario, when ticket prices are also cheap, with an average price of $281.

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 $277. 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 $402.

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 $303 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $317 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?

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 54m
Direct flights	None

The fastest flight from Ontario to Eugene takes 3h 54m

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

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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. 3h 54m 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 August 2026, there are 4 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 42% of the total bookings. Other popular airlines include Southwest with 30%, United Airlines with 15%, and Delta with 13%.

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
Delta	PriceFrom $156	Free Cancellation	Rating 7.8 8,490 reviews	Search Delta flights
United Airlines	PriceFrom $180	Free Cancellation	Rating 7.4 10,058 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $197	Free Cancellation	Rating 7.9 12,766 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $265	Free Cancellation	Rating 8.0 4,220 reviews	Search Southwest flights

Newport

Yachats

Springfield

Corvallis

Albany

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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Cheap flights from Ontario to Eugene from $119

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 8/17. 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

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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

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.

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

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