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Ontario

$197+ Cheap flights from Arcata to Ontario (ACV - 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
ACV — ONT
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Arcata to Ontario

Cheapest flights from Arcata to Ontario
Explore the most affordable flight options available from Arcata to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/207:16 am
ACV
-
ONT
1 stop5h 22m
United Airlines
Wed 2/256:37 pm
ONT
-
ACV
1 stop4h 08m
United Airlines
Deal found 1/28$334
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/242:13 pm
ACV
-
ONT
1 stop3h 28m
United Airlines
Tue 3/36:10 am
ONT
-
ACV
1 stop6h 09m
United Airlines
Deal found 1/26$335
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/217:16 am
ACV
-
ONT
1 stop5h 31m
United Airlines
Sun 3/16:37 pm
ONT
-
ACV
1 stop4h 08m
United Airlines
Deal found 1/28$367
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 6/108:13 am
ACV
-
ONT
1 stop4h 07m
United Airlines
Sun 7/266:00 am
ONT
-
ACV
1 stop6h 04m
United Airlines
Deal found 1/28$369
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/262:13 pm
ACV
-
ONT
1 stop3h 28m
United Airlines
Thu 3/56:37 pm
ONT
-
ACV
1 stop4h 08m
United Airlines
Deal found 1/27$370
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/183:59 pm
ACV
-
ONT
1 stop6h 58m
United Airlines
Wed 2/256:09 am
ONT
-
ACV
1 stop6h 10m
United Airlines
Deal found 1/28$393
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/62:09 pm
ACV
-
ONT
1 stop3h 34m
United Airlines
Sun 2/86:39 pm
ONT
-
ACV
1 stop3h 49m
United Airlines
Deal found 1/28$404
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 7/152:15 pm
ACV
-
ONT
1 stop3h 32m
United Airlines
Thu 7/231:33 pm
ONT
-
ACV
1 stop4h 35m
United Airlines
Deal found 1/26$405
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/207:16 am
ACV
-
ONT
1 stop5h 22m
United Airlines
Mon 2/231:50 pm
ONT
-
ACV
1 stop8h 55m
United Airlines
Deal found 1/28$416
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/183:59 pm
ACV
-
ONT
1 stop6h 58m
United Airlines
Mon 2/235:00 am
ONT
-
ACV
1 stop8h 31m
United Airlines
Deal found 1/28$428
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/207:16 am
ACV
-
ONT
1 stop5h 22m
United Airlines
Tue 2/241:45 pm
ONT
-
ACV
2 stops22h 34m
United Airlines
Deal found 1/28$432
This United Airlines deal was found by Cheapflights users on 1/27. 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 1/312:09 pm
ACV
-
ONT
1 stop3h 42m
United Airlines
Mon 2/26:00 am
ONT
-
ACV
1 stop5h 24m
United Airlines
Deal found 1/27$435

Find flight deals from Arcata to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Arcata (ACV) 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$334
(United Airlines)

One-way from

$197
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$349
Provider with most accurate pricing for Arcata Eureka-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Arcata Eureka-Ontario flights.
Search Deals
From Arcata Eureka to Ontario
Search Deals
One-way flight from Arcata Eureka to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Arcata 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 January 29, 2026.
Use the filters below to find and compare flights from Arcata to Ontario that are best for you.

Fly from

Arcata

Fly to

Ontario

Route

Depart

Return

Price

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Tue 2/24

2:13 pm-5:41 pm

1 stop3h 28m

Ontario

Tue 3/3

6:10 am-12:19 pm

1 stop6h 09m

$335

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Sat 2/21

7:16 am-12:47 pm

1 stop5h 31m

Ontario

Sun 3/1

6:37 pm-10:45 pm

1 stop4h 08m

$367

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Thu 2/19

7:16 am-12:38 pm

1 stop5h 22m

Ontario

Wed 2/25

6:09 am-12:19 pm

1 stop6h 10m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Wed 6/10

8:13 am-12:20 pm

1 stop4h 07m

Ontario

Tue 7/21

1:33 pm-6:08 pm

1 stop4h 35m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Wed 6/10

8:13 am-12:20 pm

1 stop4h 07m

Ontario

Mon 7/27

6:00 am-12:04 pm

1 stop6h 04m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Sun 2/22

7:16 am-12:38 pm

1 stop5h 22m

Ontario

Mon 3/2

6:37 pm-10:45 pm

1 stop4h 08m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Wed 6/10

8:13 am-12:20 pm

1 stop4h 07m

Ontario

Sat 7/25

6:00 am-12:04 pm

1 stop6h 04m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Wed 6/10

8:13 am-12:20 pm

1 stop4h 07m

Ontario

Sun 7/26

6:00 am-12:04 pm

1 stop6h 04m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Wed 6/10

8:13 am-12:20 pm

1 stop4h 07m

Ontario

Thu 7/23

6:53 pm-11:53 pm

1 stop5h 00m

$369

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Thu 2/26

2:13 pm-5:41 pm

1 stop3h 28m

Ontario

Thu 3/5

6:37 pm-10:45 pm

1 stop4h 08m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 23 results
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Compare providers for flights from Arcata 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 Arcata to Ontario in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice 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 Arcata-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Arcata-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Arcata-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Arcata-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 Arcata-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 Arcata to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Arcata to Ontario (average of $76). Flying from Arcata to Ontario in December is currently the most expensive (average of $239). 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 January 29, 2026.
Get a feel of what it's like to fly with United Airlines from Arcata 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.
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

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 Arcata 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 Arcata to Ontario?

    Departing from Arcata to Ontario will take you 3h 28m. The distance from Arcata to Ontario is about 595 mi.

  • What is the cheapest airline to fly from Arcata to Ontario round-trip?

    According to our current data, United Airlines ($281), offers the cheapest pricing from Arcata to Ontario. United Airlines is 35% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Arcata to Ontario (average of $76). Flying from Arcata to Ontario in December is currently the most expensive (average of $239). 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 Arcata to Ontario

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Top airline flying from Arcata to Ontario

Discover the top airline that operate flights from Arcata 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$281Average$439FlexibilityNo cancel feeOn-time69%

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