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$149+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Hawaii to Ontario

Keep the following information in mind while searching for Hawaii to Ontario flight deals. Data was last updated May 1, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$297
(United Airlines)

One-way from

$149
(Delta)

Popular in

June

Cheapest in

February

Average price

$348

Good round-trip deal

$338 or less

Good one-way deal

$204 or less
Provider with most accurate pricing for Honolulu-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Honolulu-Los Angeles flights.
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From Hawaii to Ontario
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One-way flight from Hawaii to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Hawaii to Ontario.
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Price to beat on a one-way flight from Hawaii to Ontario.
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Find 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 9/911:00 pmKOA - ONT
1 stop10h 13mUnited Airlines
Tue 9/161:42 pmONT - KOA
1 stop8h 42mUnited Airlines
Deal found 4/29$297
This Delta deal was found by Cheapflights users on 4/29. 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 9/239:45 pmKOA - ONT
1 stop10h 05mDelta
Tue 9/307:00 amONT - KOA
1 stop13h 44mDelta
Deal found 4/29$312
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/1712:38 pmHNL - ONT
Nonstop5h 32mAlaska Airlines
Mon 9/2210:09 amONT - HNL
Nonstop6h 01mAlaska Airlines
Deal found 4/29$318
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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
Sun 9/1410:09 amONT - HNL
Nonstop6h 01mHawaiian Airlines
Deal found 4/30$331
This Delta deal was found by Cheapflights users on 4/29. 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 9/158:55 pmHNL - ONT
1 stop10h 55mDelta
Tue 9/237:00 amONT - HNL
1 stop15h 20mDelta
Deal found 4/29$337
This Delta deal was found by Cheapflights users on 4/30. 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 5/199:30 pmOGG - ONT
1 stop13h 45mDelta
Mon 6/26:00 amONT - OGG
1 stop14h 01mDelta
Deal found 4/30$338
This Delta deal was found by Cheapflights users on 4/29. 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 9/39:45 pmLIH - ONT
1 stop10h 08mDelta
Mon 9/811:29 amONT - LIH
1 stop10h 53mDelta
Deal found 4/29$351
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 8/2611:20 amOGG - ONT
1 stop9h 39mAlaska Airlines
Tue 9/26:00 amONT - OGG
1 stop10h 13mAlaska Airlines
Deal found 4/30$363
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/410:30 pmLIH - ONT
1 stop9h 14mAlaska Airlines
Sun 9/76:00 amONT - LIH
1 stop10h 25mAlaska Airlines
Deal found 4/29$383
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/137:00 amHNL - ONT
1 stop10h 34mUnited Airlines
Tue 5/201:45 pmONT - HNL
1 stop8h 58mUnited Airlines
Deal found 4/29$395
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/1611:47 amKOA - ONT
1 stop9h 12mAlaska Airlines
Thu 9/253:04 pmONT - KOA
1 stop10h 05mAlaska Airlines
Deal found 4/29$397
This Southwest deal was found by Cheapflights users on 4/30. 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 5/1510:00 amKOA - ONT
1 stop9h 20mSouthwest
Fri 5/165:45 amONT - KOA
1 stop10h 10mSouthwest
Deal found 4/30$442

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 May 1, 2025.
Use the filters below to find and compare flights from Hawaii to Ontario that are best for you.

Fly from

Hawaii

Fly to

Ontario

Route

Depart

Return

Price

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Tue 9/9

11:00 pm-12:13 pm

1 stop10h 13m

Ontario

Tue 9/16

1:42 pm-7:24 pm

1 stop8h 42m

$297

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Tue 9/23

9:45 pm-10:50 am

1 stop10h 05m

Ontario

Tue 9/30

7:00 am-5:44 pm

1 stop13h 44m

$312

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 9/17

12:38 pm-9:10 pm

Nonstop5h 32m

Ontario

Mon 9/22

10:09 am-1:10 pm

Nonstop6h 01m

$318

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 9/11

12:38 pm-9:10 pm

Nonstop5h 32m

Ontario

Sun 9/14

10:09 am-1:10 pm

Nonstop6h 01m

$331

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 9/15

8:55 pm-10:50 am

1 stop10h 55m

Ontario

Tue 9/23

7:00 am-7:20 pm

1 stop15h 20m

$337

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Mon 5/19

9:30 pm-2:15 pm

1 stop13h 45m

Ontario

Mon 6/2

6:00 am-5:01 pm

1 stop14h 01m

$338

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 9/3

9:45 pm-10:53 am

1 stop10h 08m

Ontario

Mon 9/8

11:29 am-7:22 pm

1 stop10h 53m

$351

KahuluiOntario

OGG - ONT

OGGONT

Kahului

Tue 8/26

11:20 am-11:59 pm

1 stop9h 39m

Ontario

Tue 9/2

6:00 am-1:13 pm

1 stop10h 13m

$363

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 9/4

10:30 pm-10:44 am

1 stop9h 14m

Ontario

Sun 9/7

6:00 am-1:25 pm

1 stop10h 25m

$383

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 5/13

7:00 am-8:34 pm

1 stop10h 34m

Ontario

Tue 5/20

1:45 pm-7:43 pm

1 stop8h 58m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 49 results
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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, August is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $246). Flying from Hawaii 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 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 May 1, 2025.

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 May 1, 2025.

The most flights from USHI to ONT are scheduled on a Monday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 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 May 1, 2025.
To help decide which airline to fly from Hawaii to Ontario, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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
2,408 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

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 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 5 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 Hawaii to Ontario one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $149. Hawaiian Airlines flights start at $159 while deals on American Airlines start at $164 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 Lihue - Ontario as they are the most popular.

  • What are the most reliable airlines from Hawaii to Ontario?

    Consider JetBlue (60%), American Airlines (47%) or Alaska Airlines (31%) when booking your flight. These represent the most reliable airlines when flying from Hawaii to Ontario.

  • What are the cheapest flights from Hawaii to Ontario?

    The cheapest flight price from Hawaii to Ontario is $159. On average you can expect to pay $355. The most popular route, (Honolulu - Ontario), can usually be booked for $331.

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

Discover the top 6 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$198Average$586FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$252Average$486FlexibilityNo cancel feeOn-time85%
DeltaCheapest$286Average$436FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$296Average$542FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$313Average$456FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$355Average$648FlexibilityNo cancel feeOn-time63%

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