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Ontario

$139+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap 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 February 4, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 2/242:40 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Wed 2/258:41 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Deal found 2/3$271
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/22:40 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Mon 3/98:45 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Deal found 2/2$277
This United Airlines deal was found by Cheapflights users on 2/3. 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 2/248:00 am
HNL
-
ONT
1 stop7h 41m
United Airlines
Wed 2/251:50 pm
ONT
-
HNL
1 stop9h 10m
United Airlines
Deal found 2/3$296
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/42:40 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Tue 3/108:45 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Deal found 2/2$297
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 5/612:35 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Wed 5/134:03 pm
ONT
-
HNL
1 stop10h 54m
Multiple Airlines
Deal found 2/3$301
This Southwest deal was found by Cheapflights users on 2/3. 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.
Thu 2/266:25 am
HNL
-
ONT
2 stops10h 50m
Southwest
Mon 3/25:40 am
ONT
-
HNL
1 stop11h 30m
Southwest
Deal found 2/3$307
This Delta deal was found by Cheapflights users on 2/3. 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.
Wed 2/2510:55 pm
HNL
-
ONT
1 stop11h 12m
Delta
Wed 3/47:30 am
ONT
-
HNL
1 stop11h 35m
Delta
Deal found 2/3$316
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 3/1212:20 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Mon 3/168:45 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Deal found 2/3$317
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:40 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Tue 3/1012:02 pm
ONT
-
HNL
1 stop12h 04m
Multiple Airlines
Deal found 2/2$318
This Delta deal was found by Cheapflights users on 2/3. 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 3/1610:40 pm
HNL
-
ONT
1 stop9h 38m
Delta
Wed 3/186:00 am
ONT
-
HNL
1 stop12h 01m
Delta
Deal found 2/3$320
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/22:40 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Tue 3/107:00 am
ONT
-
HNL
1 stop9h 43m
Multiple Airlines
Deal found 2/2$321

Find 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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(Alaska Airlines)

One-way from

$139
(Expedia)

Popular in

June

Cheapest in

February

Average price

$306

Good round-trip deal

$344 or less

Good one-way deal

$197 or less
Provider with most accurate pricing for Honolulu-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Honolulu-Los Angeles flights.
Search Deals
From O'ahu to Ontario
Search Deals
One-way flight from O'ahu to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from O'ahu to Ontario.
Search Deals
Price to beat on a one-way flight from O'ahu to Ontario.
Search Deals

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 February 4, 2026.
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

Tue 2/24

8:00 am-5:41 pm

1 stop7h 41m

Ontario

Wed 2/25

1:50 pm-9:00 pm

1 stop9h 10m

$296

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 2/26

6:25 am-7:15 pm

2 stops10h 50m

Ontario

Mon 3/2

5:40 am-3:10 pm

1 stop11h 30m

$307

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 4/23

12:35 pm-9:10 pm

Nonstop5h 35m

Ontario

Mon 4/27

8:30 am-11:35 am

Nonstop6h 05m

$317

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 3/16

10:40 pm-11:18 am

1 stop9h 38m

Ontario

Wed 3/18

6:00 am-3:01 pm

1 stop12h 01m

$335

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 3/5

2:40 pm-10:15 pm

Nonstop5h 35m

Ontario

Thu 3/12

8:45 am-11:49 am

Nonstop6h 04m

$336

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 2/24

8:00 am-11:49 pm

2 stops13h 49m

Ontario

Wed 2/25

6:00 am-9:54 pm

2 stops17h 54m

$341

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 4/23

11:40 pm-2:32 pm

1 stop11h 52m

Ontario

Mon 4/27

8:30 am-11:35 am

Nonstop6h 05m

$349

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 4/22

12:35 pm-9:10 pm

Nonstop5h 35m

Ontario

Sat 4/25

3:26 pm-10:29 pm

1 stop10h 03m

$351

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 3/10

12:20 pm-8:55 pm

Nonstop5h 35m

Ontario

Thu 3/12

8:45 am-11:49 am

Nonstop6h 04m

$356

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 4/23

12:35 pm-9:10 pm

Nonstop5h 35m

Ontario

Sat 4/25

3:26 pm-10:29 pm

1 stop10h 03m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 22 results
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2
3

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, February is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $134). Flying from O'ahu to Ontario in July is currently the most expensive (average of $254). 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 February 4, 2026.

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 February 4, 2026.

The most flights from zzFUW to ONT are scheduled on a Monday (3 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

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 4, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Hawaiian Airlines from O'ahu to Ontario by reading reviews from past customers. 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
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,839 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,274 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,831 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,236 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,222 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from O'ahu to Ontario?

    United Airlines, Southwest, and Alaska Airlines can get you from O'ahu to Ontario in just under 5h 35m. Your travel time can differ by up to 5h 15m. There are 2598 mi between O'ahu and Ontario. This flight may include one or multiple stops.

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

    $157 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $159 and $162, respectively.

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

    The cheapest flight price from O'ahu to Ontario is $148. On average you can expect to pay $305. The most popular route, (Honolulu - Ontario), can usually be booked for $277.

  • 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, February is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $134). Flying from O'ahu to Ontario in July is currently the most expensive (average of $254). 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 6 airlines flying from O'ahu to Ontario

Discover the top 6 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$211Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$519FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$284Average$572FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$311Average$477FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$311Average$507FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$352Average$623FlexibilityNo cancel feeOn-time63%

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