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

According to our current data, United Airlines ($254), offers the cheapest pricing from Arcata to Ontario.

What is the cheapest day to fly from Arcata to Ontario?

Travelers seeking maximum savings on their Arcata to Ontario flight should consider departing on Wednesday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

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

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Arcata to Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 28 days in advance, which can save you up to 208% on flights from Arcata to Ontario compared to booking the week you need them. Waiting 28 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $288. For sooner than that we have options available in the next 3 days from $464.

What is the cheapest month to fly from Arcata to Ontario?

January is one of the best times of the year to fly to Ontario from Arcata. Prices for January average $353 per person but you can even find prices for as low as $200. The most expensive prices can be found in the month of July. Opting for a January flight can save you 35% on your journey compared to booking in July

What is the cheapest time of day to fly from ACV to ONT?

One of the essential ways to save on airfare from Arcata to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% on airfare.

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.

$254+ Flights from Arcata to Ontario

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Cheap flight deals from Arcata to Ontario

Round-trip from	$254 (United Airlines)
Popular in	July
Cheapest in	January
Average price	$477

From Arcata Eureka to Ontario

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find 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 July 30, 2025.

Thu 8/142:19 pmACV - ONT

1 stop3h 24mUnited Airlines

Mon 8/186:10 amONT - ACV

1 stop4h 43mUnited Airlines

Deal found 7/30

$254

Best flights from Arcata to Ontario
Discover carefully curated flight deals from Arcata to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Thu 8/142:19 pmACV - ONT

1 stop3h 24mUnited Airlines

Mon 8/186:10 amONT - ACV

1 stop4h 43mUnited Airlines

Deal found 7/30

$254

Last-minute flights from Arcata to Ontario
Discover last-minute flight deals from Arcata to Ontario. Data last updated July 30, 2025 and is based on user searches.

Tue 8/55:15 amACV - ONT

1 stop6h 59mUnited Airlines

Tue 8/126:10 amONT - ACV

1 stop4h 43mUnited Airlines

Deal found 7/29

$478

Thu 8/142:19 pmACV - ONT

1 stop3h 24mUnited Airlines

Mon 8/186:10 amONT - ACV

1 stop4h 43mUnited Airlines

Deal found 7/30

$254

One-way flights from Arcata to Ontario
Search for one-way flight options from Arcata to Ontario. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Mon 8/254:10 pmACV - ONT

1 stop4h 23mUnited Airlines

Deal found 7/28

$269

Fly from

Fly to

Route

Depart

Return

Price

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Thu 8/14

2:19 pm-5:43 pm

1 stop3h 24m

Ontario

Mon 8/18

6:10 am-10:53 am

1 stop4h 43m

$254

ArcataOntario

ACV - ONT

ACVONT

Arcata Eureka

Mon 8/25

4:10 pm-8:33 pm

1 stop4h 23m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, August is the cheapest month in which you can book a flight from Arcata to Ontario (average of $246). Flying from Arcata to Ontario in March is currently the most expensive (average of $328). 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 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

8,896 reviews

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

8,896 reviews

United Airlines

7.4

Good

8,896 reviews

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

What is the cheapest airline to fly from Arcata to Ontario round-trip?
According to our current data, United Airlines ($254), offers the cheapest pricing from Arcata to Ontario.
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, August is the cheapest month in which you can book a flight from Arcata to Ontario (average of $246). Flying from Arcata to Ontario in March is currently the most expensive (average of $328). 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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Other flights to Ontario

Top airline flying from Arcata to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$323	Average$514	FlexibilityNo cancel fee	On-time69%

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$254+ Cheap flights from Arcata to Ontario (ACV - 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Arcata to Ontario with Cheapflights

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Cheap flight deals from Arcata to Ontario

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Arcata to Ontario

Cheapest flights from Arcata to OntarioExplore 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 July 30, 2025.

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 July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Arcata to Ontario that are best for you.

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.

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?

Reviews of airlines servicing Ontario

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.

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.

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

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

How can I find direct flights from Arcata to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Arcata to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Arcata to Ontario

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Book with Flexibility

Travel Smart

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 July 30, 2025.