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Eugene

$78+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EUG
jan 4 — jan 111
dom 1/4
dom 1/11
1 adult, Economy
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Cheap 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 dezembro 5, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
qui 12/257:00 amONT - EUG
1 stop5h 23mAlaska Airlines
qua 1/289:00 amEUG - ONT
1 stop6h 08mAlaska Airlines
Deal found 12/4$244
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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.
sex 12/266:00 amONT - EUG
1 stop18h 22mAlaska Airlines
ter 12/303:55 pmEUG - ONT
1 stop25h 16mAlaska Airlines
Deal found 12/2$329
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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.
qua 12/316:05 pmONT - EUG
1 stop18h 18mAlaska Airlines
dom 1/45:56 amEUG - ONT
1 stop18h 18mAlaska Airlines
Deal found 12/3$330
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
ter 12/306:00 amONT - EUG
1 stop18h 22mAlaska Airlines
qui 1/110:00 amEUG - ONT
1 stop14h 14mAlaska Airlines
Deal found 12/4$346
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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.
qua 12/246:05 pmONT - EUG
1 stop21h 13mAlaska Airlines
sex 12/265:56 amEUG - ONT
1 stop18h 18mAlaska Airlines
Deal found 12/3$363
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
qua 12/247:00 amONT - EUG
1 stop5h 23mAlaska Airlines
qui 1/15:51 pmEUG - ONT
1 stop6h 23mAlaska Airlines
Deal found 12/4$377
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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.
qui 12/257:00 amONT - EUG
1 stop8h 18mAlaska Airlines
dom 12/285:56 amEUG - ONT
1 stop27h 54mAlaska Airlines
Deal found 12/2$393
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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.
sex 12/266:00 amONT - EUG
1 stop18h 22mAlaska Airlines
seg 12/295:56 amEUG - ONT
1 stop27h 54mAlaska Airlines
Deal found 12/3$415
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
dom 12/76:15 amONT - EUG
1 stop7h 40mMultiple Airlines
qui 12/118:35 pmEUG - ONT
1 stop16h 35mMultiple Airlines
Deal found 12/4$441
This Southwest deal was found by Cheapflights users on 12/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 12/215:30 amONT - EUG
1 stop5h 20mSouthwest
sáb 12/271:20 pmEUG - ONT
1 stop8h 40mSouthwest
Deal found 12/3$458

Find 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 dezembro 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$155
(Delta)

One-way from

$78
(Delta)

Popular in

November

Cheapest in

September

Average price

$406
Provider with most accurate pricing for Ontario-Eugene flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Eugene flights.
Search Deals
From Ontario to Eugene
Search Deals
One-way flight from Ontario to Eugene
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 dezembro 5, 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

ter 1/13

3:30 pm-11:12 pm

1 stop7h 42m

Eugene

ter 1/20

5:20 pm-10:51 pm

1 stop5h 31m

$155

OntarioEugene

ONT - EUG

ONTEUG

Ontario

qua 2/18

3:30 pm-10:55 pm

1 stop7h 25m

Eugene

sáb 2/28

6:07 am-1:54 pm

1 stop7h 47m

$167

OntarioEugene

ONT - EUG

ONTEUG

Ontario

qui 2/5

11:53 am-4:54 pm

1 stop5h 01m

Eugene

seg 2/9

1:36 pm-11:56 pm

1 stop10h 20m

$184

OntarioEugene

ONT - EUG

ONTEUG

Ontario

sex 2/6

6:00 am-1:08 pm

1 stop7h 08m

Eugene

seg 2/9

5:42 am-10:59 am

1 stop5h 17m

$184

OntarioEugene

ONT - EUG

ONTEUG

Ontario

sex 1/23

4:03 pm-9:30 pm

1 stop5h 27m

Eugene

ter 1/27

1:36 pm-8:36 pm

1 stop7h 00m

$184

OntarioEugene

ONT - EUG

ONTEUG

Ontario

sex 1/30

11:53 am-4:54 pm

1 stop5h 01m

Eugene

ter 2/3

3:02 pm-8:36 pm

1 stop5h 34m

$184

OntarioEugene

ONT - EUG

ONTEUG

Ontario

qua 3/4

6:14 am-9:31 pm

1 stop15h 17m

Eugene

dom 3/8

9:01 am-11:32 pm

1 stop14h 31m

$184

OntarioEugene

ONT - EUG

ONTEUG

Ontario

sáb 2/14

7:00 am-11:52 am

1 stop4h 52m

Eugene

ter 2/17

5:20 am-11:52 pm

1 stop18h 32m

$202

OntarioEugene

ONT - EUG

ONTEUG

Ontario

ter 1/6

5:07 pm-10:39 pm

1 stop5h 32m

$78

OntarioEugene

ONT - EUG

ONTEUG

Ontario

sex 1/16

3:30 pm-11:12 pm

1 stop7h 42m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 18 results
1
2

Compare providers for flights from Ontario to Eugene

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Eugene in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Eugene flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Eugene flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Eugene flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Eugene flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Eugene flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, May is the cheapest month in which you can book a flight from Ontario to Eugene (average of $69). Flying from Ontario to Eugene in June is currently the most expensive (average of $116). 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 dezembro 5, 2025.

It’s typically best to fly out from Ontario to Eugene in the evening. Doing so could potentially save you 10% 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 dezembro 5, 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
11,400 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,400 reviews
Alaska Airlines
8.0
Very good
11,400 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Southwest
8.0
Very good
4,255 reviews
Alaska Airlines
8.0
Very good
11,400 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,010 reviews
Alaska Airlines
8.0
Very good
11,400 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,065 reviews
Alaska Airlines
8.0
Very good
11,400 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 5h 01m. Fly via Delta or Alaska 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?

    Delta, at $178, was found to be the cheapest airline from Ontario to Eugene.Alternate airlines to your destination round-trip include United Airlines and Southwest. These flights start at 49% 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 Alaska Airlines. According to our data, you can fly for as low as $99. Users have also found prices from $124 and $155 on United Airlines and Southwest, 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, May is the cheapest month in which you can book a flight from Ontario to Eugene (average of $69). Flying from Ontario to Eugene in June is currently the most expensive (average of $116). 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 4 airlines flying from Ontario to Eugene

Discover the top 4 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 dezembro 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$281FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$250FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$183Average$373FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$227Average$348FlexibilityNo cancel feeOn-time75%

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