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Ontario

$148+ Cheap flights from Hawaii 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap flight deals from Hawaii to Ontario

Cheapest flights from Hawaii to Ontario
Explore the most affordable flight options available from Hawaii to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This Delta deal was found by Cheapflights users on 6/8. 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 9/237:45 pm
HNL
-
ONT
1 stop10h 08m
Delta
Mon 9/2811:44 am
ONT
-
HNL
1 stop10h 29m
Delta
Deal found 6/8$296
This Priceline deal was found by Cheapflights users on 6/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:48 pm
HNL
-
ONT
Nonstop5h 34m
Alaska Airlines
Wed 10/147:00 am
ONT
-
HNL
Nonstop6h 02m
Alaska Airlines
Deal found 6/8$325
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 9/110:45 pm
HNL
-
ONT
1 stop9h 31m
Delta
Tue 9/87:00 am
ONT
-
HNL
1 stop15h 21m
Delta
Deal found 6/8$330
This Southwest deal was found by Cheapflights users on 6/4. 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 9/2311:55 am
HNL
-
ONT
Nonstop5h 15m
Southwest
Wed 9/308:00 am
ONT
-
HNL
Nonstop5h 40m
Southwest
Deal found 6/4$345
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 9/110:45 pm
HNL
-
ONT
1 stop9h 31m
Delta
Thu 9/107:00 am
ONT
-
HNL
1 stop15h 21m
Delta
Deal found 6/8$346
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 10/11:33 pm
HNL
-
ONT
Nonstop5h 37m
Alaska Airlines
Mon 10/57:00 am
ONT
-
HNL
Nonstop6h 02m
Alaska Airlines
Deal found 6/8$351
This Southwest deal was found by Cheapflights users on 6/4. 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 8/196:10 am
HNL
-
ONT
2 stops10h 55m
Southwest
Mon 8/248:00 am
ONT
-
HNL
Nonstop5h 40m
Southwest
Deal found 6/4$355
This Delta deal was found by Cheapflights users on 6/8. 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 8/510:45 pm
HNL
-
ONT
1 stop9h 31m
Delta
Mon 8/176:01 pm
ONT
-
HNL
1 stop20h 33m
Delta
Deal found 6/8$356
This Delta deal was found by Cheapflights users on 6/8. 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 8/510:45 pm
HNL
-
ONT
1 stop9h 31m
Delta
Tue 8/186:01 pm
ONT
-
HNL
1 stop28h 10m
Delta
Deal found 6/8$360
This Delta deal was found by Cheapflights users on 6/7. 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.
Thu 9/177:45 pm
HNL
-
ONT
1 stop10h 08m
Delta
Tue 9/2211:44 am
ONT
-
HNL
1 stop10h 29m
Delta
Deal found 6/7$364
This Priceline deal was found by Cheapflights users on 6/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:10 pm
OGG
-
ONT
1 stop9h 46m
Multiple Airlines
Mon 8/179:11 am
ONT
-
OGG
1 stop10h 53m
Multiple Airlines
Deal found 6/8$398
This Mytrip deal was found by Cheapflights users on 6/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:47 am
KOA
-
ONT
1 stop9h 06m
Multiple Airlines
Wed 10/147:00 am
ONT
-
KOA
1 stop15h 31m
Multiple Airlines
Deal found 6/8$398

Find flight deals from Hawaii to Ontario

Keep the following information in mind while searching for Hawaii to Ontario flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$296
(Delta)

One-way from

$148
(Southwest)

Popular in

July

Cheapest in

February

Average price

$499

Good round-trip deal

$504 or less

Good one-way deal

$228 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 Hawaii to Ontario
Search Deals
One-way flight from Hawaii to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Hawaii to Ontario.
Search Deals
Price to beat on a one-way flight from Hawaii to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hawaii 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 9, 2026.
Use the filters below to find and compare flights from Hawaii to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 11/19

2:40 pm-10:10 pm

Nonstop5h 30m

Ontario

Thu 11/26

8:00 am-1:55 pm

1 stop7h 55m

$399

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 9/24

7:12 am-10:10 pm

1 stop11h 58m

Ontario

Mon 9/28

12:12 pm-8:14 pm

1 stop11h 02m

$417

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Wed 9/2

9:52 pm-9:51 am

1 stop8h 59m

Ontario

Sun 9/6

10:47 am-5:47 pm

1 stop10h 00m

$421

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 10/16

12:48 pm-9:22 pm

Nonstop5h 34m

Ontario

Sat 10/24

7:00 am-10:02 am

Nonstop6h 02m

$431

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 9/24

9:35 pm-11:16 am

1 stop10h 41m

Ontario

Mon 9/28

12:12 pm-8:14 pm

1 stop11h 02m

$431

LihueOntario

LIH - ONT

LIHONT

Lihue

Tue 11/10

9:01 am-9:32 pm

1 stop10h 31m

Ontario

Tue 1/12

9:00 am-3:38 pm

1 stop8h 38m

$435

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Fri 7/3

9:13 pm-11:17 am

1 stop11h 04m

Ontario

Wed 7/22

6:20 am-5:56 pm

1 stop14h 36m

$454

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Fri 7/24

11:55 am-10:37 pm

1 stop7h 42m

Ontario

Sun 7/26

6:00 am-10:40 am

1 stop7h 40m

$454

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Fri 7/3

8:03 am-8:32 pm

1 stop9h 29m

Ontario

Mon 8/3

2:05 pm-10:10 pm

1 stop11h 05m

$454

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Fri 9/4

9:52 pm-9:48 am

1 stop8h 56m

Ontario

Sun 9/6

10:47 am-5:47 pm

1 stop10h 00m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Hawaii to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $178). Flying from Hawaii to Ontario in October is currently the most expensive (average of $397). 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 HI to ONT?

Find hourly flight availability from Hawaii 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 9, 2026.

When flying from Hawaii 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 Hawaii to Ontario

Explore weekly flight availability from Hawaii 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 9, 2026.

The most flights from USHI to ONT are scheduled on a Monday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Hawaii to Ontario?

How far ahead should I book a flight from Hawaii to Ontario?

The price you pay for your flight from Hawaii to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 43 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

Find useful and relevant information for your journey from Hawaii 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 Hawaii?

    If you book a flight to Ontario from Hawaii, 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 Hawaii to Ontario flight route?

    The Hawaii 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 Hawaii to Ontario?

    A quick flight from Hawaii to Ontario can take about 5h 30m. Southwest provides one of the quickest options available for as low as $399. The distance from Hawaii to Ontario is about 2598 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Hawaii to Ontario one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $135. United Airlines flights start at $157 while deals on Delta start at $162 one-way.

  • What are the most popular routes from Hawaii to Ontario?

    When deciding which route to take from Hawaii to Ontario consider Honolulu - Ontario, Kahului - Ontario or Kona Intl - Ontario as they are the most popular.

  • What are the cheapest flights from Hawaii to Ontario?

    The cheapest flight price from Hawaii to Ontario is $172. On average you can expect to pay $396. The most popular route, (Honolulu - Ontario), can usually be booked for $296.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $178). Flying from Hawaii to Ontario in October is currently the most expensive (average of $397). 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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Top 4 airlines flying from Hawaii to Ontario

Discover the top 4 airlines that operate flights from Hawaii 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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$494FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$295Average$481FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$352Average$515FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$358Average$508FlexibilityNo cancel feeOn-time85%

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