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Eugene

$99+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EUG
Mar 10 — Mar 171
Tue 3/10
Tue 3/17
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 February 8, 2026.

This Delta deal was found by Cheapflights users on 2/6. 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.
Wed 3/186:00 am
ONT
-
EUG
1 stop5h 00m
Delta
Tue 3/315:15 am
EUG
-
ONT
1 stop7h 08m
Delta
Deal found 2/6$197
This Delta deal was found by Cheapflights users on 2/7. 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 3/76:00 am
ONT
-
EUG
1 stop5h 50m
Delta
Tue 3/1011:40 am
EUG
-
ONT
2 stops12h 11m
Delta
Deal found 2/7$202
This Delta deal was found by Cheapflights users on 2/5. 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.
Fri 5/12:20 pm
ONT
-
EUG
1 stop26h 44m
Delta
Tue 5/56:30 am
EUG
-
ONT
1 stop4h 43m
Delta
Deal found 2/5$220
This Alaska Airlines deal was found by Cheapflights users on 2/4. 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.
Wed 3/44:02 pm
ONT
-
EUG
1 stop7h 56m
Alaska Airlines
Sat 3/79:01 am
EUG
-
ONT
1 stop6h 07m
Alaska Airlines
Deal found 2/4$228
This Delta deal was found by Cheapflights users on 2/5. 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 5/211:53 am
ONT
-
EUG
1 stop5h 11m
Delta
Mon 5/46:30 am
EUG
-
ONT
1 stop10h 45m
Delta
Deal found 2/5$230
This Hawaiian Airlines deal was found by Cheapflights users on 2/7. 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.
Sat 3/144:02 pm
ONT
-
EUG
1 stop5h 29m
Hawaiian Airlines
Mon 3/1612:52 pm
EUG
-
ONT
1 stop4h 22m
Hawaiian Airlines
Deal found 2/7$231
This Delta deal was found by Cheapflights users on 2/8. 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.
Wed 3/186:00 am
ONT
-
EUG
2 stops11h 10m
Delta
Tue 3/246:08 am
EUG
-
ONT
1 stop5h 10m
Delta
Deal found 2/8$233
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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 3/77:00 am
ONT
-
EUG
1 stop4h 52m
Alaska Airlines
Sat 3/1412:30 pm
EUG
-
ONT
2 stops11h 02m
Alaska Airlines
Deal found 2/7$235
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:00 am
ONT
-
EUG
1 stop8h 06m
United Airlines
Mon 3/22:08 pm
EUG
-
ONT
1 stop5h 46m
United Airlines
Deal found 2/4$240
This Delta deal was found by Cheapflights users on 2/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 am
ONT
-
EUG
1 stop5h 50m
Delta
Mon 3/211:25 am
EUG
-
ONT
2 stops12h 24m
Delta
Deal found 2/4$245
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Wed 4/157:29 pm
ONT
-
EUG
1 stop14h 43m
Multiple Airlines
Sun 4/2611:02 am
EUG
-
ONT
1 stop21h 02m
Multiple Airlines
Deal found 2/8$248
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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 3/77:00 am
ONT
-
EUG
1 stop4h 52m
Alaska Airlines
Mon 3/95:42 am
EUG
-
ONT
1 stop5h 26m
Alaska Airlines
Deal found 2/7$250

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 February 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$99
(Alaska Airlines)

Popular in

June

Cheapest in

May

Average price

$379
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. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 8, 2026.
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

Wed 4/8

6:00 am-12:30 pm

1 stop6h 30m

Eugene

Sat 4/11

4:02 pm-8:23 pm

1 stop4h 21m

$197

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 4/29

5:55 pm-11:10 pm

1 stop5h 15m

Eugene

Tue 5/5

6:30 am-11:13 am

1 stop4h 43m

$197

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 3/18

6:00 am-11:00 am

1 stop5h 00m

Eugene

Tue 3/31

5:15 am-12:23 pm

1 stop7h 08m

$197

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 3/7

7:00 am-11:52 am

1 stop4h 52m

Eugene

Sat 3/14

5:42 am-11:08 am

1 stop5h 26m

$228

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 3/4

4:02 pm-11:58 pm

1 stop7h 56m

Eugene

Sat 3/7

9:01 am-3:08 pm

1 stop6h 07m

$228

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 3/21

6:00 am-11:00 am

1 stop5h 00m

Eugene

Wed 4/1

5:50 pm-10:34 pm

1 stop4h 44m

$228

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 3/11

4:02 pm-9:31 pm

1 stop5h 29m

Eugene

Sat 3/14

1:29 pm-11:32 pm

1 stop10h 03m

$228

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 4/29

11:53 am-5:04 pm

1 stop5h 11m

Eugene

Sun 5/3

6:30 am-1:39 pm

1 stop7h 09m

$230

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 5/2

11:53 am-5:04 pm

1 stop5h 11m

Eugene

Sun 5/3

6:30 am-1:39 pm

1 stop7h 09m

$230

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 3/7

7:00 am-11:52 am

1 stop4h 52m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

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 February.
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 July is currently the most expensive (average of $133). 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 February 8, 2026.
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
11,850 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,850 reviews
Alaska Airlines
8.0
Very good
11,850 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
11,850 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,172 reviews
Alaska Airlines
8.0
Very good
11,850 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,254 reviews
Alaska Airlines
8.0
Very good
11,850 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 15m. Fly via Alaska Airlines 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 $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 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 Alaska Airlines. According to our data, you can fly for as low as $99. Users have also found prices from $124 and $151 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 July is currently the most expensive (average of $133). 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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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 February 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$281FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$250FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$183Average$366FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$197Average$322FlexibilityNo cancel feeOn-time75%

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