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Ontario

$152+ Cheap flights from O'ahu to Ontario (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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from O'ahu to Ontario

Keep the following information in mind while searching for O'ahu to Ontario flight deals. Data was last updated June 12, 2025.

Round-trip from

$303
(Delta)

One-way from

$152
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$486

Good round-trip deal

$377 or less

Good one-way deal

$234 or less
From O'ahu to Ontario
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One-way flight from O'ahu to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from O'ahu to Ontario.
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Price to beat on a one-way flight from O'ahu to Ontario.
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Find flight deals from O'ahu to Ontario

Cheapest flights from O'ahu to Ontario
Explore the most affordable flight options available from O'ahu to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 8/2510:42 pmHNL - ONT
1 stop9h 08mDelta
Wed 9/311:40 amONT - HNL
1 stop10h 25mDelta
Deal found 6/10$303
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 9/1112:38 pmHNL - ONT
Nonstop5h 32mHawaiian Airlines
Tue 9/2310:09 amONT - HNL
Nonstop6h 01mHawaiian Airlines
Deal found 6/11$318
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 7/2911:55 pmHNL - ONT
1 stop10h 31mAlaska Airlines
Mon 8/119:00 amONT - HNL
Nonstop5h 55mAlaska Airlines
Deal found 6/10$358
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3010:21 pmHNL - ONT
1 stop16h 47mAmerican Airlines
Mon 8/116:17 amONT - HNL
1 stop9h 05mAmerican Airlines
Deal found 6/11$393
This United Airlines deal was found by Cheapflights users on 6/10. 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 12/38:00 amHNL - ONT
2 stops14h 10mUnited Airlines
Mon 12/86:00 amONT - HNL
1 stop9h 09mUnited Airlines
Deal found 6/10$442
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:15 amHNL - ONT
1 stop10h 50mSouthwest
Sun 6/2910:20 amONT - HNL
1 stop11h 10mSouthwest
Deal found 6/11$495

Cheapflights Fare Finder

Customize your flight search to find flights from O'ahu 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 June 12, 2025.
Use the filters below to find and compare flights from O'ahu to Ontario that are best for you.

Fly from

O'ahu

Fly to

Ontario

Route

Depart

Return

Price

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 8/25

10:42 pm-10:50 am

1 stop9h 08m

Ontario

Thu 9/4

11:40 am-7:05 pm

1 stop10h 25m

$303

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 8/28

12:38 pm-9:10 pm

Nonstop5h 32m

Ontario

Thu 9/4

8:35 am-11:38 am

Nonstop6h 03m

$348

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 7/29

11:55 pm-1:26 pm

1 stop10h 31m

Ontario

Mon 8/11

9:00 am-11:55 am

Nonstop5h 55m

$358

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 7/30

10:21 pm-6:08 pm

1 stop16h 47m

Ontario

Mon 8/11

6:17 am-12:22 pm

1 stop9h 05m

$393

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 7/30

8:30 am-10:52 pm

2 stops11h 22m

Ontario

Mon 8/11

1:19 pm-9:28 pm

2 stops11h 09m

$464

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 6/25

8:15 am-10:05 pm

1 stop10h 50m

Ontario

Sun 6/29

10:20 am-6:30 pm

1 stop11h 10m

$495

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 8/26

11:04 pm-11:32 am

1 stop9h 28m

$152

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 9/4

12:38 pm-9:10 pm

Nonstop5h 32m

$159

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 8/29

10:42 pm-10:50 am

1 stop9h 08m

$168

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 7/29

11:55 pm-1:26 pm

1 stop10h 31m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
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Best time to book a flight from O'ahu to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from O'ahu 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 O'ahu to Ontario

What is the cheapest month to book a flight from O'ahu to Ontario?

Currently, August is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $246). Flying from O'ahu 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.

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

Find hourly flight availability from O'ahu 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 June 12, 2025.

When flying from O'ahu to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from O'ahu to Ontario

Explore weekly flight availability from O'ahu to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from zzFUW to ONT are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from O'ahu to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from O'ahu 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 O'ahu?

    If you book a flight to Ontario from O'ahu, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How popular is this O'ahu to Ontario flight route?

    The O'ahu to Ontario flight path was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from O'ahu to Ontario one-way?

    $152 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $159 and $167, respectively.

  • What are the most reliable airlines from O'ahu to Ontario?

    No one likes to see their flight delayed. When booking a flight from O'ahu to Ontario consider choosing American Airlines (52%), Alaska Airlines (52%) or JetBlue (52%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from O'ahu to Ontario?

    The cheapest flight price from O'ahu to Ontario is $172. On average you can expect to pay $405. The most popular route, (Honolulu - Ontario), can usually be booked for $303.

  • Can I find deals for flights from O'ahu to Ontario that include hotel bookings?

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

  • How can I find direct flights from O'ahu to Ontario?

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

  • Can I find deals for business class flights from O'ahu to Ontario?

    Yes. Cheapflights offers flight deals from O'ahu 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 O'ahu to Ontario?

    Currently, August is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $246). Flying from O'ahu 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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Alternative routes for O'ahu to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from O'ahu to Ontario

Discover the top 5 airlines that operate flights from O'ahu 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$238Average$586FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$246Average$474FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$296Average$528FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$318Average$511FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$494Average$710FlexibilityNo cancel feeOn-time63%

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