Ontario

$136+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
May 2 — May 91
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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 April 2, 2026.

This Delta deal was found by Cheapflights users on 4/1. 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 5/67:35 pm
HNL
-
ONT
1 stop10h 18m
Delta
Sun 5/1011:52 am
ONT
-
HNL
1 stop10h 56m
Delta
Deal found 4/1$290
This Delta deal was found by Cheapflights users on 3/31. 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 5/188:50 pm
KOA
-
ONT
1 stop12h 45m
Delta
Thu 5/286:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 3/31$306
This Delta deal was found by Cheapflights users on 3/31. 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 5/198:50 pm
KOA
-
ONT
2 stops16h 27m
Delta
Thu 5/286:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 3/31$312
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Thu 4/2310:16 pm
HNL
-
ONT
1 stop10h 18m
American Airlines
Wed 4/2912:19 pm
ONT
-
HNL
1 stop8h 46m
American Airlines
Deal found 4/1$320
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/79:30 pm
HNL
-
ONT
1 stop9h 11m
United Airlines
Mon 5/111:30 pm
ONT
-
HNL
1 stop9h 04m
United Airlines
Deal found 4/1$332
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/69:40 pm
HNL
-
ONT
2 stops11h 42m
United Airlines
Sun 5/106:00 am
ONT
-
HNL
1 stop8h 58m
United Airlines
Deal found 4/1$338
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/69:00 pm
HNL
-
ONT
1 stop8h 39m
American Airlines
Sun 5/109:24 am
ONT
-
HNL
1 stop11h 41m
American Airlines
Deal found 3/31$340
This Delta deal was found by Cheapflights users on 4/1. 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 4/2310:45 pm
HNL
-
ONT
1 stop15h 30m
Delta
Fri 5/111:53 am
ONT
-
HNL
1 stop12h 27m
Delta
Deal found 4/1$352
This Delta deal was found by Cheapflights users on 4/1. 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 4/2310:45 pm
HNL
-
ONT
1 stop15h 30m
Delta
Thu 4/3011:53 am
ONT
-
HNL
1 stop12h 27m
Delta
Deal found 4/1$354
This Delta deal was found by Cheapflights users on 4/1. 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 4/2210:45 pm
HNL
-
ONT
1 stop20h 52m
Delta
Fri 5/111:53 am
ONT
-
HNL
1 stop12h 27m
Delta
Deal found 4/1$356
This Delta deal was found by Cheapflights users on 3/31. 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.
Fri 5/228:50 pm
KOA
-
ONT
1 stop11h 22m
Delta
Thu 5/286:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 3/31$356
This Delta deal was found by Cheapflights users on 4/1. 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 4/2210:45 pm
HNL
-
ONT
1 stop20h 52m
Delta
Wed 4/292:20 pm
ONT
-
HNL
1 stop10h 00m
Delta
Deal found 4/1$358

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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$290
(Delta)

One-way from

$136
(Southwest)

Popular in

June

Cheapest in

February

Average price

$402

Good round-trip deal

$366 or less

Good one-way deal

$207 or less
Provider with most accurate pricing for Honolulu-Los Angeles flight deals.
Provider most trusted by Cheapflights users for Honolulu-Los Angeles flights.
From Hawaii to Ontario
One-way flight from Hawaii to Ontario
Highest demand for flights based on searches. 12% potential increase in price ($60 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Hawaii to Ontario.
Price to beat on a one-way flight from Hawaii to Ontario.

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 April 2, 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

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Tue 5/19

8:50 pm-4:17 pm

2 stops16h 27m

Ontario

Thu 5/28

6:45 am-5:37 pm

1 stop13h 52m

$312
Quickest round-trip

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Sun 5/10

12:35 pm-9:10 pm

Nonstop5h 35m

Ontario

Wed 5/20

9:40 am-12:41 pm

Nonstop6h 01m

$401

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Thu 4/30

8:05 am-10:00 pm

2 stops10h 55m

Ontario

Thu 5/7

7:00 am-12:15 pm

1 stop8h 15m

$404

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Wed 9/2

10:50 pm-12:12 pm

1 stop10h 22m

Ontario

Mon 9/7

8:00 am-12:50 pm

1 stop7h 50m

$406

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Mon 5/18

8:50 pm-12:35 pm

1 stop12h 45m

Ontario

Fri 5/29

6:45 am-5:37 pm

1 stop13h 52m

$415

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Thu 4/23

8:50 pm-1:39 pm

1 stop13h 49m

Ontario

Mon 5/4

7:00 am-7:03 pm

1 stop15h 03m

$417

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Tue 5/5

10:10 am-9:10 pm

1 stop8h 00m

Ontario

Wed 5/6

3:24 pm-10:20 pm

1 stop9h 56m

$421

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 9/14

12:43 pm-9:20 pm

Nonstop5h 37m

Ontario

Mon 9/21

7:20 am-10:22 am

Nonstop6h 02m

$425

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Wed 5/20

8:50 pm-12:19 pm

2 stops12h 29m

Ontario

Sun 5/24

11:52 am-5:37 pm

1 stop32h 45m

$434

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 4/23

12:35 pm-9:10 pm

Nonstop5h 35m

Ontario

Sat 4/25

8:30 am-11:35 am

Nonstop6h 05m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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, February is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $124). Flying from Hawaii to Ontario in November is currently the most expensive (average of $208). 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 April 2, 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 April 2, 2026.

The most flights from USHI to ONT are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, 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?

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?

  • How long is the flight from Hawaii to Ontario?

    A quick flight from Hawaii to Ontario can take about 5h 35m. Delta provides one of the quickest options available for as low as $401. 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 $148. United Airlines flights start at $157 while deals on Hawaiian Airlines start at $165 one-way.

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

  • What are the cheapest flights from Hawaii to Ontario?

    The cheapest flight price from Hawaii to Ontario is $158. On average you can expect to pay $374. The most popular route, (Honolulu - Ontario), can usually be booked for $290.

  • 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, February is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $124). Flying from Hawaii to Ontario in November is currently the most expensive (average of $208). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Hawaii to Ontario

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

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 April 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$498FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$311Average$495FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$317Average$480FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$319Average$468FlexibilityNo cancel feeOn-time63%

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