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$135+ Cheap flights from Ontario (ONT) to Hawaii

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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Cheap flight deals from Ontario to Hawaii

Keep the following information in mind while searching for Ontario to Hawaii flight deals. Data was last updated October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$312
(Alaska Airlines)

One-way from

$135
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$370

Good round-trip deal

$429 or less

Good one-way deal

$222 or less
Provider with most accurate pricing for Los Angeles-Honolulu flight deals.
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From Ontario to Hawaii
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One-way flight from Ontario to Hawaii
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Highest demand for flights based on searches. 15% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ontario to Hawaii.
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Price to beat on a one-way flight from Ontario to Hawaii.
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Find flight deals from Ontario to Hawaii

Cheapest flights from Ontario to Hawaii
Explore the most affordable flight options available from Ontario to Hawaii. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/106:00 amONT - KOA
1 stop10h 40mAlaska Airlines
Wed 12/109:10 pmKOA - ONT
1 stop12h 09mAlaska Airlines
Deal found 10/21$316
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/812:13 pmONT - KOA
1 stop11h 17mAlaska Airlines
Wed 12/109:10 pmKOA - ONT
1 stop12h 09mAlaska Airlines
Deal found 10/21$321
This Delta deal was found by Cheapflights users on 10/21. 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 12/86:40 amONT - KOA
1 stop13h 40mDelta
Sun 12/148:43 pmKOA - ONT
2 stops13h 51mDelta
Deal found 10/21$326
This KAYAK deal was found by Cheapflights users on 10/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:13 pmONT - LIH
1 stop12h 12mAlaska Airlines
Mon 12/811:25 pmLIH - ONT
1 stop9h 54mAlaska Airlines
Deal found 10/21$331
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/812:13 pmONT - OGG
1 stop12h 40mAlaska Airlines
Fri 12/1211:20 pmOGG - ONT
1 stop9h 59mAlaska Airlines
Deal found 10/21$333
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/139:59 amONT - KOA
1 stop8h 48mAmerican Airlines
Wed 11/199:35 pmKOA - ONT
1 stop9h 26mAmerican Airlines
Deal found 10/21$337
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/1012:13 pmONT - OGG
1 stop12h 40mAlaska Airlines
Sun 12/1411:20 pmOGG - ONT
1 stop9h 59mAlaska Airlines
Deal found 10/21$339
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/412:13 pmONT - KOA
1 stop11h 17mAlaska Airlines
Wed 12/109:10 pmKOA - ONT
1 stop12h 09mAlaska Airlines
Deal found 10/21$339
This Delta deal was found by Cheapflights users on 10/21. 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 12/86:40 amONT - OGG
1 stop15h 38mDelta
Thu 12/1110:00 pmOGG - ONT
1 stop11h 13mDelta
Deal found 10/21$343
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 12/66:00 amONT - OGG
1 stop10h 24mAlaska Airlines
Mon 12/1511:20 pmOGG - ONT
1 stop9h 59mAlaska Airlines
Deal found 10/21$345
This Delta deal was found by Cheapflights users on 10/20. 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 11/1011:48 amONT - OGG
1 stop10h 19mDelta
Thu 11/1310:20 pmOGG - ONT
1 stop10h 48mDelta
Deal found 10/20$347
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 12/56:00 amONT - KOA
1 stop13h 22mAlaska Airlines
Mon 12/159:00 amKOA - ONT
1 stop12h 29mAlaska Airlines
Deal found 10/21$347

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Hawaii 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 October 22, 2025.
Use the filters below to find and compare flights from Ontario to Hawaii that are best for you.

Fly from

Ontario

Fly to

Hawaii

Route

Depart

Return

Price

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 1/28

8:13 am-5:09 pm

1 stop10h 56m

Kona Intl

Wed 2/4

9:00 am-8:36 pm

1 stop9h 36m

$317

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Tue 1/20

8:13 am-5:09 pm

1 stop10h 56m

Kona Intl

Wed 1/28

6:00 am-10:28 pm

1 stop14h 28m

$324

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 2/2

11:53 am-9:30 pm

1 stop11h 37m

Kona Intl

Thu 2/5

9:10 pm-10:59 am

1 stop11h 49m

$333

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Thu 1/8

8:13 am-3:50 pm

1 stop9h 37m

Kona Intl

Wed 1/14

9:00 am-8:36 pm

1 stop9h 36m

$335

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Thu 1/29

8:13 am-3:50 pm

1 stop9h 37m

Kona Intl

Thu 2/5

9:10 pm-10:59 am

1 stop11h 49m

$335

OntarioKahului

ONT - OGG

ONTOGG

Ontario

Sat 12/6

1:26 pm-10:20 pm

1 stop10h 54m

Kahului

Tue 12/9

11:20 pm-11:19 am

1 stop9h 59m

$339

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Fri 2/6

11:53 am-9:30 pm

1 stop11h 37m

Kona Intl

Tue 2/10

12:30 pm-10:28 pm

1 stop7h 58m

$343

OntarioKahului

ONT - OGG

ONTOGG

Ontario

Mon 2/2

8:13 am-4:58 pm

1 stop10h 45m

Kahului

Sat 2/7

11:21 am-10:28 pm

1 stop9h 07m

$354

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 1/12

8:13 am-5:09 pm

1 stop10h 56m

Kona Intl

Tue 1/20

9:00 am-8:36 pm

1 stop9h 36m

$358

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Tue 12/9

6:00 am-5:22 pm

1 stop13h 22m

Kona Intl

Fri 12/12

9:10 pm-11:19 am

1 stop12h 09m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Hawaii

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Hawaii (average of $132). Flying from Ontario to Hawaii in June is currently the most expensive (average of $211). 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 ONT to HI?

Find hourly flight availability from Ontario to Hawaii. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2025.

One of the essential ways to save on airfare from Ontario to Hawaii 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 43% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Hawaii. Price data was last updated on October 19, 2025.

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

Reviews of airlines servicing Hawaii

Get insights into the airlines that provide service to Hawaii. 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 Hawaii. Reviews last updated October 22, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Ontario to Hawaii. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,150 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,979 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,788 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,988 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Hawaii. 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 from for flights from Ontario to Hawaii?

    For a flight from Ontario to Hawaii, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How popular is this Ontario to Hawaii flight route?

    The Ontario to Hawaii flight path was viewed by 32 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 Ontario to Hawaii?

    Departing from Ontario to Hawaii will take you 9h 30m. Ontario and Hawaii are separated by a distance of 2528 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Ontario - Honolulu, Ontario - Kahului or Ontario - Kona Intl when deciding on the best route from Ontario to Hawaii.

  • What are the cheapest flights from Ontario to Hawaii?

    Looking for the cheapest flight from Ontario to Hawaii? While on average our users pay $610, our data indicates the cheapest price to be $199. The most popular route (Ontario - Honolulu), is priced around $270.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Hawaii (average of $132). Flying from Ontario to Hawaii in June is currently the most expensive (average of $211). 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 Ontario to Hawaii

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Hawaii

Discover the top 6 airlines that operate flights from Ontario to Hawaii. 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$371FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$232Average$451FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$239Average$534FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$277Average$572FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$308Average$569FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$318Average$568FlexibilityNo cancel feeOn-time75%

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