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Eugene

$139+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EUG
4月 23 — 4月 301
週四 4/23
週四 4/30
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 3月 24, 2026.

This Delta deal was found by Cheapflights users on 3/24. 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.
週三 5/65:55 pm
ONT
-
EUG
1 stop6h 03m
Delta
週二 5/126:15 am
EUG
-
ONT
1 stop4h 57m
Delta
Deal found 3/24$243
This Southwest deal was found by Cheapflights users on 3/23. 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.
週六 5/236:20 pm
ONT
-
EUG
1 stop4h 20m
Southwest
週三 5/275:30 am
EUG
-
ONT
1 stop4h 55m
Southwest
Deal found 3/23$268
This Delta deal was found by Cheapflights users on 3/19. 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.
週三 4/155:55 pm
ONT
-
EUG
1 stop6h 03m
Delta
週二 4/286:30 am
EUG
-
ONT
1 stop4h 43m
Delta
Deal found 3/19$277
This Delta deal was found by Cheapflights users on 3/24. 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.
週三 5/65:55 pm
ONT
-
EUG
1 stop6h 03m
Delta
週一 5/115:10 am
EUG
-
ONT
1 stop7h 09m
Delta
Deal found 3/24$278
This Delta deal was found by Cheapflights users on 3/19. 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.
週六 4/185:59 pm
ONT
-
EUG
1 stop4h 36m
Delta
週二 4/286:30 am
EUG
-
ONT
1 stop4h 43m
Delta
Deal found 3/19$283
This Delta deal was found by Cheapflights users on 3/19. 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.
週六 4/185:59 pm
ONT
-
EUG
1 stop4h 36m
Delta
週六 4/256:30 am
EUG
-
ONT
1 stop7h 09m
Delta
Deal found 3/19$289
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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.
週二 4/217:00 am
ONT
-
EUG
1 stop5h 05m
Alaska Airlines
週二 4/285:17 am
EUG
-
ONT
1 stop4h 51m
Alaska Airlines
Deal found 3/19$290
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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.
週六 5/304:03 pm
ONT
-
EUG
1 stop7h 56m
Alaska Airlines
週二 6/26:00 am
EUG
-
ONT
1 stop5h 10m
Alaska Airlines
Deal found 3/20$293
This Southwest deal was found by Cheapflights users on 3/20. 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.
週四 4/164:25 pm
ONT
-
EUG
1 stop5h 25m
Southwest
週四 4/235:10 am
EUG
-
ONT
1 stop7h 45m
Southwest
Deal found 3/20$294
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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.
週四 4/167:00 am
ONT
-
EUG
1 stop5h 05m
Alaska Airlines
週六 4/184:02 pm
EUG
-
ONT
1 stop4h 21m
Alaska Airlines
Deal found 3/20$299

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 3月 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$243
(Delta)

One-way from

$107
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$378
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
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 3月 24, 2026.
Use the filters below to find and compare flights from Ontario to Eugene that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週二 4/28

6:00 am-12:46 pm

1 stop6h 46m

Eugene

週二 5/12

5:17 am-10:08 am

1 stop4h 51m

$303
Quickest round-trip

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週六 4/18

5:59 pm-10:35 pm

1 stop4h 36m

Eugene

週一 4/27

6:30 am-11:13 am

1 stop4h 43m

$354

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週五 5/15

11:15 am-3:31 pm

1 stop4h 16m

Eugene

週日 5/17

7:59 pm-11:10 am

1 stop15h 11m

$363

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週四 5/28

6:45 am-12:55 pm

1 stop6h 10m

Eugene

週一 6/1

6:15 am-11:10 am

1 stop4h 55m

$373

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週四 7/9

5:38 pm-11:59 pm

1 stop6h 21m

Eugene

週一 7/13

5:43 pm-11:11 pm

1 stop5h 28m

$373

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週四 7/9

5:05 pm-11:46 pm

1 stop6h 41m

Eugene

週二 7/14

6:15 am-12:49 pm

1 stop6h 34m

$373

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週三 8/26

6:58 pm-12:23 am

1 stop5h 25m

Eugene

週一 8/31

8:40 am-2:47 pm

1 stop6h 07m

$373

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週日 4/19

6:00 am-11:55 am

1 stop5h 55m

Eugene

週二 4/21

6:00 am-9:56 am

1 stop3h 56m

$383

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週日 6/28

10:54 am-3:23 pm

1 stop4h 29m

Eugene

週一 7/20

6:00 am-1:13 pm

1 stop7h 13m

$388

OntarioEugene

ONT - EUG

ONTEUG

Ontario

週三 4/15

1:29 pm-11:58 pm

2 stops10h 29m

Eugene

週三 4/22

6:30 am-11:13 am

1 stop4h 43m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Eugene flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 February is currently the most expensive (average of $125). 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.

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 3月 24, 2026.
Read through reviews of airlines operating flights from Ontario to Eugene, such as Southwest,Alaska Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Alaska Airlines
7.9
Good
12,104 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,322 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,471 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 4h 24m. Fly via Alaska Airlines, Southwest, or Delta 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 $156, 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 $139 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 February is currently the most expensive (average of $125). 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
Corvallis

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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 3月 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$281FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$258FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$183Average$358FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$197Average$342FlexibilityNo cancel feeOn-time75%

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