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$75+ Cheap flights from Eugene to Ontario (EUG - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — ONT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Eugene to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Eugene (EUG) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$249
(Hawaiian Airlines)

One-way from

$115
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$328
From Eugene to Ontario
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One-way flight from Eugene to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Eugene to Ontario

Cheapest flights from Eugene to Ontario
Explore the most affordable flight options available from Eugene to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:52 pmEUG - ONT
1 stop25h 03mMultiple Airlines
Sat 11/151:37 pmONT - EUG
1 stop24h 35mMultiple Airlines
Deal found 9/13$240
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:42 pmEUG - ONT
1 stop6h 21mAlaska Airlines
Thu 10/304:11 pmONT - EUG
1 stop4h 59mAlaska Airlines
Deal found 9/12$249
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:20 pmEUG - ONT
1 stop5h 21mDelta
Mon 11/171:20 pmONT - EUG
2 stops9h 53mDelta
Deal found 9/13$254
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:47 pmEUG - ONT
1 stop4h 02mUnited Airlines
Tue 12/161:50 pmONT - EUG
1 stop3h 55mUnited Airlines
Deal found 9/13$257
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:52 pmEUG - ONT
1 stop25h 03mMultiple Airlines
Thu 11/206:30 amONT - EUG
1 stop6h 44mMultiple Airlines
Deal found 9/13$259
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:50 pmEUG - ONT
1 stop10h 27mMultiple Airlines
Sat 11/151:37 pmONT - EUG
1 stop24h 35mMultiple Airlines
Deal found 9/13$262
This Alaska Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:41 amEUG - ONT
1 stop6h 36mAlaska Airlines
Thu 11/204:11 pmONT - EUG
1 stop4h 59mAlaska Airlines
Deal found 9/13$266
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:52 pmEUG - ONT
1 stop25h 03mMultiple Airlines
Sun 11/166:00 amONT - EUG
1 stop8h 12mMultiple Airlines
Deal found 9/13$268
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/225:42 pmEUG - ONT
1 stop6h 21mAlaska Airlines
Mon 10/277:20 amONT - EUG
1 stop5h 24mAlaska Airlines
Deal found 9/15$269
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2511:29 amEUG - ONT
2 stops9h 51mDelta
Mon 10/274:35 pmONT - EUG
1 stop7h 14mDelta
Deal found 9/15$271
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:20 pmEUG - ONT
1 stop5h 21mDelta
Mon 11/175:49 pmONT - EUG
1 stop5h 24mDelta
Deal found 9/13$274
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:29 amEUG - ONT
2 stops9h 51mDelta
Mon 11/171:20 pmONT - EUG
2 stops9h 53mDelta
Deal found 9/13$276

Cheapflights Fare Finder

 
Customize your flight search to find flights from Eugene to Ontario 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Eugene to Ontario that are best for you.

Fly from

Eugene

Fly to

Ontario

Route

Depart

Return

Price

EugeneOntario

EUG - ONT

EUGONT

Eugene

Wed 11/5

8:41 am-3:17 pm

1 stop6h 36m

Ontario

Sat 11/15

7:20 am-12:44 pm

1 stop5h 24m

$249

EugeneOntario

EUG - ONT

EUGONT

Eugene

Thu 10/16

6:00 am-12:13 pm

1 stop6h 13m

Ontario

Mon 10/20

6:36 pm-10:51 pm

1 stop4h 15m

$249

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sat 10/25

5:42 pm-12:03 am

1 stop6h 21m

Ontario

Thu 10/30

4:11 pm-9:10 pm

1 stop4h 59m

$249

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sat 11/8

1:02 pm-5:05 pm

1 stop4h 03m

Ontario

Sat 11/15

4:11 pm-9:10 pm

1 stop4h 59m

$249

EugeneOntario

EUG - ONT

EUGONT

Eugene

Mon 11/3

1:02 pm-5:09 pm

1 stop4h 07m

Ontario

Mon 11/17

7:20 am-12:44 pm

1 stop5h 24m

$249

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sat 10/25

10:40 am-8:50 pm

2 stops10h 10m

Ontario

Mon 10/27

6:40 pm-10:40 pm

1 stop4h 00m

$254

EugeneOntario

EUG - ONT

EUGONT

Eugene

Tue 11/4

11:29 am-9:20 pm

2 stops9h 51m

Ontario

Mon 11/17

1:20 pm-11:13 pm

2 stops9h 53m

$259

EugeneOntario

EUG - ONT

EUGONT

Eugene

Wed 11/19

8:41 am-3:17 pm

1 stop6h 36m

Ontario

Sat 11/22

4:48 pm-9:45 pm

1 stop4h 57m

$266

EugeneOntario

EUG - ONT

EUGONT

Eugene

Fri 12/5

12:59 pm-8:03 pm

1 stop7h 04m

Ontario

Mon 12/8

7:10 am-12:19 pm

1 stop5h 09m

$269

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sat 10/25

11:29 am-9:20 pm

2 stops9h 51m

Ontario

Mon 10/27

4:35 pm-11:49 pm

1 stop7h 14m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 20 results
1
2

Best time to book a flight from Eugene to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Eugene with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Eugene to Ontario

What is the cheapest month to book a flight from Eugene to Ontario?

Currently, August is the cheapest month in which you can book a flight from Eugene to Ontario (average of $246). Flying from Eugene to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from EUG to ONT?

Find hourly flight availability from Eugene to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 3% on flights from Eugene to Ontario by exploring options for tickets in the afternoon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and United Airlines from Eugene to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Eugene to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Eugene to Ontario?

    If you wish to fly to Ontario from Eugene, then you need to book flights from Eugene to Ontario. There is 1 flight from Eugene (EUG) to Ontario (ONT) per day to choose from. Flights to Ontario from Eugene are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 3h 59m is how long a nonstop flight from Eugene to Ontario typically takes.

  • How long is the flight from Eugene to Ontario?

    Airlines like Alaska Airlines and United Airlines fly from Eugene to Ontario in about 6h 13m. The time it takes to get you to your destination can typically vary by up to 23m. There are 757 mi between Eugene and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Eugene to Ontario round-trip?

    United Airlines, at $212, was found to be the cheapest airline from Eugene to Ontario.Alternate airlines to your destination round-trip include Alaska Airlines and Southwest. Users have found that United Airlines is 40% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Eugene to Ontario one-way?

    The cheapest airlines for a one-way flight from Eugene to Ontario are Southwest ($75), United Airlines ($102), and Alaska Airlines ($125).

  • Can I find deals for flights from Eugene to Ontario that include hotel bookings?

    Yes. In addition to deals on Eugene to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Eugene to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Eugene to Ontario.

  • Can I find deals for business class flights from Eugene to Ontario?

    Yes. Cheapflights offers flight deals from Eugene to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Eugene to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Eugene to Ontario (average of $246). Flying from Eugene to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 3 airlines flying from Eugene to Ontario

Discover the top 3 airlines that operate flights from Eugene to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$212Average$288FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$394FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$242Average$326FlexibilityNo cancel feeOn-time63%

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