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$149+ Cheap flights from Ontario to Honolulu (ONT - HNL)

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Find cheap flights from Ontario to Honolulu with Cheapflights

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Cheapflights Tip: The best prices from Ontario to Honolulu are usually found in February or January, booked 87 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Ontario to Honolulu

Cheapest flights from Ontario to Honolulu
Explore the most affordable flight options available from Ontario to Honolulu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Southwest deal was found by Cheapflights users on 3/17. 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.
Mon 5/46:10 am
ONT
-
HNL
1 stop14h 30m
Southwest
Thu 5/79:05 pm
HNL
-
ONT
1 stop8h 40m
Southwest
Deal found 3/17$316
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/1511:05 am
ONT
-
HNL
2 stops11h 44m
United Airlines
Wed 4/227:00 am
HNL
-
ONT
1 stop7h 47m
United Airlines
Deal found 3/19$322
This Southwest deal was found by Cheapflights users on 3/17. 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.
Sun 4/196:00 am
ONT
-
HNL
1 stop13h 05m
Southwest
Fri 4/248:15 am
HNL
-
ONT
1 stop10h 20m
Southwest
Deal found 3/17$326
This Southwest deal was found by Cheapflights users on 3/17. 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.
Tue 4/1412:30 pm
ONT
-
HNL
1 stop8h 10m
Southwest
Tue 4/218:00 am
HNL
-
ONT
1 stop11h 10m
Southwest
Deal found 3/17$339
This SmartFares deal was found by Cheapflights users on 3/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:00 am
ONT
-
HNL
1 stop10h 10m
Multiple Airlines
Fri 11/201:55 pm
HNL
-
ONT
Nonstop5h 33m
Multiple Airlines
Deal found 3/20$341
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 4/293:26 pm
ONT
-
HNL
1 stop10h 03m
Alaska Airlines
Wed 5/612:35 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 3/18$349
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/2911:05 am
ONT
-
HNL
2 stops11h 44m
United Airlines
Tue 5/57:00 am
HNL
-
ONT
2 stops12h 59m
United Airlines
Deal found 3/17$352
This Southwest deal was found by Cheapflights users on 3/17. 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.
Tue 4/216:30 am
ONT
-
HNL
2 stops10h 50m
Southwest
Fri 4/248:15 am
HNL
-
ONT
1 stop10h 20m
Southwest
Deal found 3/17$355
This Alaska Airlines deal was found by Cheapflights users on 3/17. 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.
Sun 5/38:30 am
ONT
-
HNL
Nonstop6h 05m
Alaska Airlines
Thu 5/712:35 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 3/17$356
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 4/238:30 am
ONT
-
HNL
Nonstop6h 05m
Alaska Airlines
Wed 5/612:35 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 3/22$357

Find flight deals from Ontario to Honolulu

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Honolulu (HNL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(Southwest)

One-way from

$149
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$531

Good round-trip deal

$421 or less

Good one-way deal

$248 or less
Provider with most accurate pricing for Ontario-Honolulu flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Honolulu flights.
Search Deals
From Ontario to Honolulu
Search Deals
One-way flight from Ontario to Honolulu
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Honolulu.
Search Deals
Price to beat on a one-way flight from Ontario to Honolulu.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Honolulu 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 March 22, 2026.
Use the filters below to find and compare flights from Ontario to Honolulu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 4/28

8:30 am-11:35 am

Nonstop6h 05m

Honolulu

Wed 5/6

12:35 pm-9:10 pm

Nonstop5h 35m

$357

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 8/24

8:00 am-10:57 am

Nonstop5h 57m

Honolulu

Mon 8/31

9:55 pm-11:09 am

1 stop10h 14m

$439

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 4/28

8:30 am-11:35 am

Nonstop6h 05m

Honolulu

Wed 4/29

9:09 pm-9:45 am

1 stop9h 36m

$450
Quickest round-trip

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 9/10

8:00 am-10:57 am

Nonstop5h 57m

Honolulu

Sun 9/13

12:55 pm-9:28 pm

Nonstop5h 33m

$475

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 8/16

9:11 am-12:11 pm

Nonstop6h 00m

Honolulu

Sun 8/23

12:55 pm-9:28 pm

Nonstop5h 33m

$483

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 9/12

8:00 am-10:57 am

Nonstop5h 57m

Honolulu

Sat 9/19

9:55 pm-11:09 am

1 stop10h 14m

$494

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 7/14

12:02 pm-7:16 pm

1 stop10h 14m

Honolulu

Tue 7/21

9:20 pm-11:14 am

1 stop10h 54m

$554

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 4/23

3:26 pm-10:29 pm

1 stop10h 03m

Honolulu

Sun 4/26

12:35 pm-9:10 pm

Nonstop5h 35m

$556

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 8/9

9:11 am-12:11 pm

Nonstop6h 00m

Honolulu

Fri 8/14

1:11 pm-9:47 pm

Nonstop5h 36m

$574

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 5/6

8:30 am-11:35 am

Nonstop6h 05m

Honolulu

Tue 5/12

12:35 pm-9:10 pm

Nonstop5h 35m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to Honolulu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Honolulu in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Honolulu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Honolulu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Honolulu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Honolulu flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Honolulu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Honolulu

Have a flexible travel schedule? Discover the best time to fly to Honolulu 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 Honolulu

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Honolulu. Price data was last updated on March 13, 2026.

The price you pay for your flight from Ontario to Honolulu may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Ontario to Honolulu (average of $161). Flying from Ontario to Honolulu in June is currently the most expensive (average of $299). 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 HNL?

Find hourly flight availability from Ontario to Honolulu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 22, 2026.

When flying from Ontario to Honolulu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Ontario to Honolulu flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Honolulu trip
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on HNL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Reviews of airlines servicing Honolulu

Get insights into the airlines that provide service to Honolulu. 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 Honolulu. Reviews last updated March 22, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andHawaiian Airlines from Ontario to Honolulu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,325 reviews
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Alaska Airlines
7.9
Good
12,094 reviews
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Hawaiian Airlines
7.8
Good
2,841 reviews
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
United Airlines
7.4
Good
9,459 reviews
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
American Airlines
7.1
Good
11,485 reviews
Southwest
8.0
Very good
4,325 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Ontario to Honolulu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Ontario to Honolulu?

    You will need to book a flight from Ontario to Honolulu if you want to fly from Ontario to Honolulu. At least 7 different airlines have flights from Ontario (ONT) to Honolulu (HNL) on a regular basis. There are 2 flights to Honolulu from the Ontario airport per day. If you manage to book one that is nonstop, then you can expect the flight time from ONT to HNL to be around 5h 40m.

  • How popular is this Ontario to Honolulu flight route?

    This flight path from Ontario to Honolulu was viewed by 46 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 Honolulu?

    Alaska Airlines can get you from Ontario to Honolulu in just under 6h 05m. Your travel time will be generally consistent. There are 2598 mi between Ontario and Honolulu. All flights are typically nonstop.

  • What are the cheapest airlines flying from Ontario to Honolulu round-trip?

    According to our current data, Delta ($168), United Airlines ($198), and Alaska Airlines ($230) offers the cheapest pricing from Ontario to Honolulu. Delta is currently priced 67% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $153. Users have also found prices from $158 and $164 on United Airlines and Hawaiian Airlines, respectively.

  • What are the cheapest flights from Ontario to Honolulu?

    On average you can expect to pay $408 for a flight from Ontario to Honolulu. The cheapest flight overall is $227 while the most popular route, (Ontario - Honolulu) is currently priced at $365.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Ontario to Honolulu (average of $161). Flying from Ontario to Honolulu in June is currently the most expensive (average of $299). 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

Traveling to a place near Honolulu?

Book flights to Honolulu if you plan to visit one of these locations
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Top 7 airlines flying from Ontario to Honolulu

Discover the top 7 airlines that operate flights from Ontario to Honolulu. 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$168Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$198Average$472FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$230Average$345FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$316Average$503FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$318Average$528FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$331Average$531FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$376Average$598FlexibilityNo cancel feeOn-time63%

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