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Eugene

$91+ Cheap flights from Ontario to Eugene (ONT - EUG)

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EUG
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Eugene

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Eugene (EUG). 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

$181
(American Airlines)

One-way from

$91
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$284
From Ontario to Eugene
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One-way flight from Ontario to Eugene
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Highest demand for flights based on searches. 11% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 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 Ontario to Eugene

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

This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:15 amONT - EUG
1 stop7h 17mAmerican Airlines
Sat 10/256:00 amEUG - ONT
1 stop6h 01mAmerican Airlines
Deal found 9/12$181
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:15 pmONT - EUG
2 stops9h 59mDelta
Sat 10/2511:29 amEUG - ONT
1 stop5h 41mDelta
Deal found 9/12$186
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 10/115:50 pmONT - EUG
1 stop5h 24mDelta
Wed 10/155:20 pmEUG - ONT
1 stop5h 21mDelta
Deal found 9/15$249
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 10/96:05 amONT - EUG
1 stop8h 07mMultiple Airlines
Sun 10/128:55 pmEUG - ONT
1 stop14h 52mMultiple Airlines
Deal found 9/13$251
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/306:00 amONT - EUG
1 stop8h 12mMultiple Airlines
Sun 11/28:52 pmEUG - ONT
1 stop15h 59mMultiple Airlines
Deal found 9/14$260
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:36 pmONT - EUG
1 stop4h 15mUnited Airlines
Sat 10/181:57 pmEUG - ONT
1 stop3h 43mUnited Airlines
Deal found 9/12$262
This Hawaiian Airlines 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:11 pmONT - EUG
1 stop4h 59mHawaiian Airlines
Mon 11/31:02 pmEUG - ONT
1 stop4h 07mHawaiian Airlines
Deal found 9/15$266
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 10/111:15 pmONT - EUG
2 stops9h 59mDelta
Tue 10/145:20 pmEUG - ONT
1 stop5h 21mDelta
Deal found 9/15$271
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:53 pmONT - EUG
1 stop3h 52mUnited Airlines
Mon 10/206:00 amEUG - ONT
1 stop6h 13mUnited Airlines
Deal found 9/12$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Eugene 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 Ontario to Eugene that are best for you.

Fly from

Ontario

Fly to

Eugene

Route

Depart

Return

Price

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/18

1:15 pm-11:14 pm

2 stops9h 59m

Eugene

Sat 10/25

11:29 am-5:10 pm

1 stop5h 41m

$186

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 10/22

6:00 am-1:07 pm

1 stop7h 07m

Eugene

Sat 10/25

5:42 pm-12:03 am

1 stop6h 21m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/11

1:53 pm-5:45 pm

1 stop3h 52m

Eugene

Wed 10/15

6:00 am-12:13 pm

1 stop6h 13m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/18

6:15 am-1:32 pm

1 stop7h 17m

Eugene

Sat 10/25

6:00 am-12:01 pm

1 stop6h 01m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 11/5

10:59 am-3:27 pm

1 stop4h 28m

Eugene

Sat 11/15

1:02 pm-5:05 pm

1 stop4h 03m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/11

1:53 pm-5:45 pm

1 stop3h 52m

Eugene

Tue 10/14

6:00 am-12:13 pm

1 stop6h 13m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/11

7:10 am-11:29 am

1 stop4h 19m

Eugene

Tue 10/14

5:42 pm-12:03 am

1 stop6h 21m

$249

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Fri 10/31

7:20 am-12:44 pm

1 stop5h 24m

Eugene

Mon 11/3

1:02 pm-5:09 pm

1 stop4h 07m

$259

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/11

1:53 pm-5:45 pm

1 stop3h 52m

$91

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 10/11

1:15 pm-11:14 pm

2 stops9h 59m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 19 results
1
2

Best time to book a flight from Ontario to Eugene

Have a flexible travel schedule? Discover the best time to fly to Eugene from Ontario 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 Ontario to Eugene

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Eugene (average of $321). Flying from Ontario to Eugene in June is currently the most expensive (average of $477). 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 ONT to EUG?

Find hourly flight availability from Ontario to Eugene. 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.

It’s typically best to fly out from Ontario to Eugene in the evening. Doing so could potentially save you 11% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Eugene

Get insights into the airlines that provide service to Eugene. 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 Eugene. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Ontario to Eugene, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's 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.
Delta
8.0
Very good
7,954 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 Ontario to Eugene. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Eugene?

    There are many flights that can get you from Ontario to Eugene in 3h 52m. Fly via Delta, Hawaiian Airlines, or United Airlines to get the fastest option. There are 757 mi between Ontario and Eugene. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Southwest, at $183, was found to be the cheapest airline from Ontario to Eugene.Alternate airlines to your destination round-trip include Delta and Alaska Airlines. These flights start at 46% lower than the current average price 3 months from now.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $91. Users have also found prices from $96 and $120 on Delta and Alaska Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Eugene 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 Ontario to Eugene?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Eugene (average of $321). Flying from Ontario to Eugene in June is currently the most expensive (average of $477). 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.

See more FAQs

Traveling to a place near Eugene?

Book flights to Eugene if you plan to visit one of these locations
Newport
Albany
Corvallis

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Alternative routes for Ontario to Eugene

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Ontario to Eugene

Discover the top 3 airlines that operate flights from Ontario to Eugene. 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
SouthwestCheapest$183Average$370FlexibilityNo cancel feeOn-time63%
DeltaCheapest$218Average$281FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$236Average$298FlexibilityNo cancel feeOn-time75%

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