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Ontario

$93+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — ONT
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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Cheap 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 February 27, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/25. 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.
Fri 5/88:38 pm
EUG
-
ONT
1 stop13h 07m
Alaska Airlines
Mon 5/113:26 pm
ONT
-
EUG
1 stop8h 33m
Alaska Airlines
Deal found 2/25$167
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Tue 4/76:00 am
EUG
-
ONT
1 stop3h 56m
United Airlines
Tue 4/216:00 am
ONT
-
EUG
1 stop5h 55m
United Airlines
Deal found 2/25$185
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:38 pm
EUG
-
ONT
1 stop27h 21m
Alaska Airlines
Sat 5/97:00 am
ONT
-
EUG
1 stop8h 19m
Alaska Airlines
Deal found 2/24$195
This CheapOair deal was found by Cheapflights users on 2/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:07 pm
EUG
-
ONT
1 stop10h 52m
Alaska Airlines
Wed 4/86:00 am
ONT
-
EUG
1 stop12h 40m
Alaska Airlines
Deal found 2/23$196
This Delta deal was found by Cheapflights users on 2/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:50 pm
EUG
-
ONT
1 stop4h 44m
Delta
Tue 3/246:00 am
ONT
-
EUG
1 stop5h 00m
Delta
Deal found 2/23$203
This Delta deal was found by Cheapflights users on 2/24. 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.
Sat 5/26:30 am
EUG
-
ONT
2 stops9h 55m
Delta
Tue 5/55:55 pm
ONT
-
EUG
1 stop6h 03m
Delta
Deal found 2/24$221
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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.
Tue 4/78:01 am
EUG
-
ONT
2 stops31h 41m
Alaska Airlines
Tue 4/216:00 am
ONT
-
EUG
1 stop14h 31m
Alaska Airlines
Deal found 2/25$224
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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.
Fri 4/178:01 am
EUG
-
ONT
1 stop15h 58m
Alaska Airlines
Sat 4/253:26 pm
ONT
-
EUG
1 stop8h 33m
Alaska Airlines
Deal found 2/25$225
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/261:07 pm
EUG
-
ONT
1 stop10h 52m
Alaska Airlines
Thu 4/210:33 am
ONT
-
EUG
1 stop9h 58m
Alaska Airlines
Deal found 2/24$226
This Delta deal was found by Cheapflights users on 2/25. 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 4/216:30 am
EUG
-
ONT
1 stop4h 43m
Delta
Sun 4/265:55 pm
ONT
-
EUG
1 stop6h 03m
Delta
Deal found 2/25$233
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:29 pm
EUG
-
ONT
1 stop9h 15m
Alaska Airlines
Wed 3/256:00 am
ONT
-
EUG
1 stop14h 31m
Alaska Airlines
Deal found 2/23$238

Find 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 February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$167
(Alaska Airlines)

One-way from

$93
(Delta)

Popular in

March

Cheapest in

October

Average price

$432
Provider with most accurate pricing for Eugene-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Eugene-Ontario flights.
Search Deals
From Eugene to Ontario
Search Deals
One-way flight from Eugene to Ontario
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($23 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 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 February 27, 2026.
Use the filters below to find and compare flights from Eugene to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

EugeneOntario

EUG - ONT

EUGONT

Eugene

Tue 3/17

6:08 am-4:28 pm

2 stops10h 20m

Ontario

Thu 3/19

6:00 am-11:00 am

1 stop5h 00m

$264

EugeneOntario

EUG - ONT

EUGONT

Eugene

Fri 4/24

1:23 pm-2:19 pm

2 stops24h 56m

Ontario

Mon 4/27

7:59 pm-11:59 pm

1 stop28h 00m

$284

EugeneOntario

EUG - ONT

EUGONT

Eugene

Wed 3/11

6:10 am-4:28 pm

2 stops10h 18m

Ontario

Sun 3/15

11:59 am-5:10 pm

1 stop5h 11m

$339

EugeneOntario

EUG - ONT

EUGONT

Eugene

Fri 4/3

4:00 pm-3:42 pm

2 stops23h 42m

Ontario

Mon 4/6

7:00 am-10:47 pm

1 stop15h 47m

$341

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sun 7/19

7:20 pm-11:14 am

1 stop15h 54m

Ontario

Sat 8/1

10:54 am-3:18 pm

1 stop4h 24m

$343

EugeneOntario

EUG - ONT

EUGONT

Eugene

Tue 7/7

6:15 am-11:14 am

1 stop4h 59m

Ontario

Sat 7/11

11:55 am-5:11 pm

1 stop5h 16m

$343

EugeneOntario

EUG - ONT

EUGONT

Eugene

Fri 6/26

5:20 am-9:59 am

1 stop4h 39m

Ontario

Mon 6/29

5:38 pm-11:59 pm

1 stop6h 21m

$343

EugeneOntario

EUG - ONT

EUGONT

Eugene

Fri 8/14

6:00 am-11:14 am

1 stop5h 14m

Ontario

Fri 8/21

6:10 pm-10:28 pm

1 stop4h 18m

$343

EugeneOntario

EUG - ONT

EUGONT

Eugene

Thu 4/9

5:10 am-10:25 am

1 stop5h 15m

Ontario

Mon 4/13

5:30 pm-9:50 pm

1 stop4h 20m

$366

EugeneOntario

EUG - ONT

EUGONT

Eugene

Thu 4/9

11:40 am-11:51 pm

2 stops12h 11m

Ontario

Sun 4/12

6:00 am-11:00 am

1 stop5h 00m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Eugene to Ontario

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 Eugene to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Eugene-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Eugene-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Eugene-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Eugene-Ontario 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 Eugene-Ontario 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 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 $64). Flying from Eugene to Ontario in December is currently the most expensive (average of $129). 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 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 February 27, 2026.
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
11,965 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Alaska Airlines
8.0
Very good
11,965 reviews
Alaska Airlines
8.0
Very good
11,965 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Southwest
8.0
Very good
4,301 reviews
Alaska Airlines
8.0
Very good
11,965 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
United Airlines
7.4
Good
9,351 reviews
Alaska Airlines
8.0
Very good
11,965 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

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.

  • How long is the flight from Eugene to Ontario?

    Airlines like Delta and Alaska Airlines fly from Eugene to Ontario in about 10h 20m. The time it takes to get you to your destination can typically vary by up to 14h 36m. 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 Southwest and Alaska Airlines. 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 United Airlines ($99), Southwest ($124), and Alaska Airlines ($129).

  • 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 $64). Flying from Eugene to Ontario in December is currently the most expensive (average of $129). 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

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Alternative routes for Eugene to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$212Average$342FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$238Average$328FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$265Average$422FlexibilityNo cancel feeOn-time75%

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