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$245+ Cheap flights from Eureka, CA to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ACV — ONT
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Eureka to Ontario

Keep the following information in mind while searching for Eureka to Ontario flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$325
(United Airlines)

One-way from

$251
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$344
Provider with most accurate pricing for Arcata Eureka-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Arcata Eureka-Los Angeles flights.
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From Eureka to Ontario
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One-way flight from Eureka to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Eureka to Ontario

Cheapest flights from Eureka to Ontario
Explore the most affordable flight options available from Eureka to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:45 pmACV - ONT
1 stop3h 50mUnited Airlines
sáb. 11/151:55 pmONT - ACV
1 stop3h 50mUnited Airlines
Deal found 2/20$245
This United deal was found by Cheapflights users on 2/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:45 pmACV - ONT
2 stops15h 54mMultiple Airlines
sáb. 11/157:00 amONT - ACV
2 stops7h 29mMultiple Airlines
Deal found 2/20$997

Find flights from Eureka to Ontario within your budget

Customize your flight search to find flights from Eureka 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 febrero 20, 2025.

Fly from

Eureka

Fly to

Ontario

Route

Depart

Return

Price

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

vie. 3/7

6:45 pm-10:45 pm

1 stop4h 00m

Ontario

mar. 3/11

10:38 am-5:44 pm

1 stop7h 06m

$325

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

lun. 3/24

2:11 pm-8:10 pm

1 stop5h 59m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Eureka to Ontario

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

Travel insights for flights from Eureka to Ontario

Get recent, data-driven insights about flights from Eureka to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Eureka to Ontario (average of $246). Flying from Eureka to Ontario in March is currently the most expensive (average of $315). 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 EU9 to ONT?

Find hourly flight availability from Eureka to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Eureka to Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 febrero 20, 2025.
United Airlines
7.4
Good
8,765 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20

4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.

United Airlines
7.4
Good
8,765 reviews
United Airlines
7.4
Good
8,765 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20

4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.

Related info for your journey

Find useful and relevant information for your journey from Eureka to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Eureka?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Eureka. On average, Ontario has 0 inbound flights from Eureka per day from 1 airline. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Eureka to Ontario (average of $246). Flying from Eureka to Ontario in March is currently the most expensive (average of $315). 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.

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Top airline flying from Eureka to Ontario

Discover the top airline that operate flights from Eureka 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$308Average$492FlexibilityNo cancel feeOn-time69%
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