What airlines fly to Ontario?

Alaska Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Ontario from Eugene 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 Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Eugene Airport to Ontario Airport are refreshed on a daily basis.

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

As of September 2026, there are 3 operators available to choose from for flights from Eugene Airport to Ontario Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Eugene Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$122 Cheap Flights from Eugene to Ontario in 2026/27

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1:40 pm - 9:45 pmEUG Eugene-ONT Ontario

8h 05m1 stop Denver Intl

3:35 pm - 9:15 pmONT Ontario-EUG Eugene

5h 40m1 stop Sacramento Intl

$267Southwest

Tue, Jan 12 - Tue, Jan 19

4:30 pm - 9:25 pmEUG Eugene-ONT Ontario

4h 55m1 stop Las Vegas Harry Reid Intl

1:55 pm - 10:20 pmONT Ontario-EUG Eugene

8h 25m1 stop Denver Intl

$267Southwest

Tue, Oct 20 - Tue, Nov 3

12:33 pm - 5:12 pmEUG Eugene-ONT Ontario

4h 39m1 stop Seattle/Tacoma Intl

5:59 pm - 11:54 pmONT Ontario-EUG Eugene

5h 55m1 stop Seattle/Tacoma Intl

$267Delta

Sat, Nov 7 - Tue, Nov 10

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

5h 11m1 stop Seattle/Tacoma Intl

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

6h 36m1 stop Seattle/Tacoma Intl

$267Delta

Wed, Oct 14 - Wed, Oct 21

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

5h 02m1 stop Seattle/Tacoma Intl

6:00 am - 11:55 amONT Ontario-EUG Eugene

5h 55m1 stop Salt Lake City

$267Delta

Wed, Nov 4 - Tue, Nov 10

6:50 am - 12:00 pmEUG Eugene-ONT Ontario

5h 10m1 stop Sacramento Intl

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

3h 40m1 stop Sacramento Intl

$268Southwest

Tue, Oct 20 - Tue, Oct 20

6:00 am - 10:23 amEUG Eugene-ONT Ontario

4h 23m1 stop San Francisco

1:52 pm - 5:46 pmONT Ontario-EUG Eugene

3h 54m1 stop San Francisco

$347United Airlines

Sat, Oct 10 - Tue, Oct 13

6:00 am - 10:23 amEUG Eugene-ONT Ontario

4h 23m1 stop San Francisco

5:00 am - 1:25 pmONT Ontario-EUG Eugene

8h 25m1 stop Denver Intl

$347United Airlines

Tue, Oct 20 - Tue, Nov 3

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

4h 13m1 stop Portland

10:40 am - 3:25 pmONT Ontario-EUG Eugene

4h 45m1 stop Portland

$423Alaska Airlines

Tue, Oct 27 - Tue, Nov 3

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

4h 13m1 stop Portland

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

7h 45m1 stop Seattle/Tacoma Intl

$423Alaska Airlines

Sat, Oct 31 - Mon, Nov 2

Cheap last minute flights

Enter your travel dates to find the best prices.

5:25 am - 9:51 amEUG Eugene-ONT Ontario

4h 26m1 stop Portland

12:12 pm - 5:08 pmONT Ontario-EUG Eugene

4h 56m1 stop Seattle/Tacoma Intl

$581Alaska Airlines

Tue, Sep 22 - Tue, Sep 22

5:25 am - 9:51 amEUG Eugene-ONT Ontario

4h 26m1 stop Portland

7:12 am - 11:55 amONT Ontario-EUG Eugene

4h 43m1 stop Portland

$587Alaska Airlines

Tue, Sep 22 - Sat, Sep 26

5:25 am - 9:51 amEUG Eugene-ONT Ontario

4h 26m1 stop Portland

6:02 am - 1:44 pmONT Ontario-EUG Eugene

7h 42m1 stop Seattle/Tacoma Intl

$587Alaska Airlines

Sat, Sep 19 - Wed, Sep 23

5:40 am - 12:40 pmEUG Eugene-ONT Ontario

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

4:45 pm - 9:15 pmONT Ontario-EUG Eugene

4h 30m1 stop Sacramento Intl

$592Southwest

Tue, Sep 22 - Tue, Sep 22

5:40 am - 12:40 pmEUG Eugene-ONT Ontario

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

2:10 pm - 9:15 pmONT Ontario-EUG Eugene

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

$597Southwest

Tue, Sep 22 - Tue, Sep 22

6:00 am - 12:12 pmEUG Eugene-ONT Ontario

6h 12m1 stop San Francisco

1:18 pm - 9:17 pmONT Ontario-EUG Eugene

7h 59m1 stop Denver Intl

$675United Airlines

Thu, Sep 17 - Tue, Sep 22

5:00 am - 12:50 pmEUG Eugene-ONT Ontario

7h 50m1 stop Denver Intl

1:56 pm - 8:33 pmONT Ontario-EUG Eugene

6h 37m1 stop San Francisco

$675United Airlines

Fri, Sep 18 - Tue, Sep 22

6:47 am - 12:06 pmEUG Eugene-ONT Ontario

5h 19m1 stop Phoenix Sky Harbor Intl

6:15 am - 1:07 pmONT Ontario-EUG Eugene

6h 52m1 stop Phoenix Sky Harbor Intl

$675American Airlines

Fri, Sep 18 - Wed, Sep 23

6:47 am - 12:06 pmEUG Eugene-ONT Ontario

5h 19m1 stop Phoenix Sky Harbor Intl

1:04 pm - 7:17 pmONT Ontario-EUG Eugene

6h 13m1 stop Phoenix Sky Harbor Intl

$675American Airlines

Fri, Sep 18 - Tue, Sep 22

1:41 pm - 6:13 pmEUG Eugene-ONT Ontario

4h 32m1 stop Phoenix Sky Harbor Intl

6:15 am - 1:07 pmONT Ontario-EUG Eugene

6h 52m1 stop Phoenix Sky Harbor Intl

$675American Airlines

Thu, Sep 17 - Wed, Sep 23

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Southwest flights from Eugene to Ontario

Our best Southwest deals on Eugene to Ontario flight tickets

Southwest

Oct 14

EUG4:30 pmEugene

4h 55m

1 stop

ONT9:25 pmOntario

Oct 21

ONT5:45 pmOntario

3h 40m

1 stop

EUG9:25 pmEugene

$268

Southwest

Oct 20

EUG6:50 amEugene

5h 10m

1 stop

ONT12:00 pmOntario

Nov 3

ONT5:55 amOntario

7h 05m

2 stops

EUG1:00 pmEugene

$272

Southwest

Oct 14

EUG6:50 amEugene

3h 30m

1 stop

ONT10:20 amOntario

Oct 21

ONT6:10 amOntario

9h 40m

2 stops

EUG3:50 pmEugene

$273

Alaska Airlines flights from Eugene to Ontario

Our best Alaska Airlines deals on Eugene to Ontario flight tickets

Alaska Airlines

Sep 28

EUG4:03 pmEugene

4h 21m

1 stop

ONT8:24 pmOntario

Oct 2

ONT7:12 amOntario

5h 42m

1 stop

EUG12:54 pmEugene

$537

Alaska Airlines

Sep 28

EUG6:05 amEugene

5h 09m

1 stop

ONT11:14 amOntario

Sep 28

ONT3:14 pmOntario

8h 39m

1 stop

EUG11:53 pmEugene

$557

Alaska Airlines

Sep 26

EUG5:25 amEugene

4h 26m

1 stop

ONT9:51 amOntario

Sep 29

ONT10:47 amOntario

4h 39m

1 stop

EUG3:26 pmEugene

$562

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Tue 1/12

1:40 pm-9:45 pm

1 stop8h 05m

Ontario

Tue 1/19

3:35 pm-9:15 pm

1 stop5h 40m

$267

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Tue 10/20

4:30 pm-9:25 pm

1 stop4h 55m

Ontario

Tue 11/3

1:55 pm-10:20 pm

1 stop8h 25m

$267

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Sat 11/7

12:33 pm-5:12 pm

1 stop4h 39m

Ontario

Tue 11/10

5:59 pm-11:54 pm

1 stop5h 55m

$267

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Wed 10/14

6:05 am-11:16 am

1 stop5h 11m

Ontario

Wed 10/21

6:20 am-12:56 pm

1 stop6h 36m

$267

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Wed 11/4

5:41 pm-10:43 pm

1 stop5h 02m

Ontario

Tue 11/10

6:00 am-11:55 am

1 stop5h 55m

$267

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Tue 10/20

6:50 am-12:00 pm

1 stop5h 10m

Ontario

Tue 10/20

5:45 pm-9:25 pm

1 stop3h 40m

$268

Quickest round-trip

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Sat 10/10

6:00 am-10:23 am

1 stop4h 23m

Ontario

Tue 10/13

1:52 pm-5:46 pm

1 stop3h 54m

$347

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Tue 10/20

6:00 am-10:23 am

1 stop4h 23m

Ontario

Tue 11/3

5:00 am-1:25 pm

1 stop8h 25m

$347

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Tue 10/27

4:02 pm-8:15 pm

1 stop4h 13m

Ontario

Tue 11/3

10:40 am-3:25 pm

1 stop4h 45m

$423

EugeneOntario

EUG Eugene - ONT Ontario

EUGONT

Eugene

Sat 10/31

4:02 pm-8:15 pm

1 stop4h 13m

Ontario

Mon 11/2

4:09 pm-11:54 pm

1 stop7h 45m

$423

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 Eugene to Ontario

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 Eugene and Ontario?

Prices are currently low for flights on this route.

Typical prices usually range from $338 to $372.
The lowest price recently found on this route was $267.

What is the cheapest month to fly to Ontario?

In general, October is the cheapest month to fly from Eugene to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. If you aren’t able to travel during the month of October, then book flights to Ontario from Eugene during January instead. Flights to Ontario in January, while not as cheap as those in October, still average around $267.

How have Eugene to Ontario flight prices changed over time?

As of September 2026, prices for Eugene to Ontario flights are approximately 148% more expensive when compared to flights at the same time last year.

When to book flights from Eugene to Ontario

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

Estimated round-trip price

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

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

Best Price Found	$122
Fastest flight time	4h 07m
Direct flights	None

The best one-way flight to Ontario from Eugene in the past 72 hours is $122. The best round-trip flight deal from Eugene to Ontario found on momondo in the last 72 hours is $267.

The fastest flight from Eugene to Ontario takes 4h 07m

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

Search flight deals

Frequently asked questions about flying from Eugene to Ontario

How far is Eugene to Ontario by plane?
Eugene and Ontario are 748.3 mi apart from one another. A reasonable flight in good conditions will take 4h 07m.
When did momondo last update prices for flights from Eugene Airport to Ontario Airport?
Prices for flights from Eugene Airport to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Eugene Airport to Ontario Airport?
As of September 2026, there are 3 operators available to choose from for flights from Eugene Airport to Ontario Airport.
How old do you have to be to fly from Eugene Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Eugene Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Eugene to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Eugene to Ontario is Southwest (49% of total bookings). The next most popular airlines are Alaska Airlines (38%) and United Airlines (14%).

Best airlines flying from Eugene to Ontario

Compare and see reviews for airlines that fly from Eugene to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $199	Free Cancellation	Rating 7.4 10,215 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $236	Free Cancellation	Rating 7.9 12,932 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $236	Free Cancellation	Rating 8.0 4,188 reviews	Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Eugene to Ontario. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Ontario from Eugene which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Eugene.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Eugene and alert you when they change.

An easier way to manage your Ontario trip

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Cheap flights from Eugene to Los Angeles from $122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Eugene to Los Angeles departing on 10/22. 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 Eugene to Ontario

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Alaska Airlines flights from Eugene to Ontario

Our best Alaska Airlines deals on Eugene to Ontario flight tickets

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How to get the cheapest flight ticket from Eugene to Ontario

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

What is the cheapest month to fly to Ontario?

How have Eugene to Ontario flight prices changed over time?

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

What airlines fly to Ontario?

When to book flights from Eugene to Ontario

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Eugene to Ontario

Best airlines flying from Eugene to Ontario

Compare and see reviews for airlines that fly from Eugene to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario 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 California

Fly your favorite airline to Los Angeles

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

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

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