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Cheap flights from Ontario to O'ahu from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to O'ahu departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to O'ahu

Cheap round-trip flights

Alaska Airlines Logo
11:59 am - 8:04 pmONT-HNL
10h 05m1 stop
Alaska Airlines Logo
9:40 pm - 10:39 amHNL-ONT
10h 59m1 stop
$368Alaska Airlines
Find Deal
Wed, Nov 5 - Sun, Jan 25
Alaska Airlines Logo
9:45 am - 1:48 pmONT-HNL
6h 03mnonstop
Alaska Airlines Logo
9:40 am - 5:14 pmHNL-ONT
5h 34mnonstop
$370Alaska Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 17
Alaska Airlines Logo
8:35 am - 11:38 amONT-HNL
6h 03mnonstop
Alaska Airlines Logo
12:38 pm - 9:10 pmHNL-ONT
5h 32mnonstop
$372Alaska Airlines
Find Deal
Sat, Sep 6 - Wed, Sep 10
Delta Logo
6:00 am - 1:30 pmONT-HNL
10h 30m1 stop
Delta Logo
7:10 pm - 8:57 amHNL-ONT
10h 47m1 stop
$376Delta
Find Deal
Sat, Sep 13 - Fri, Sep 19
Delta Logo
6:05 am - 4:51 pmONT-HNL
13h 46m2 stops
Delta Logo
10:33 pm - 11:09 amHNL-ONT
9h 36m1 stop
$381Delta
Find Deal
Sat, Sep 6 - Thu, Sep 11
United Airlines Logo
6:00 am - 11:40 amONT-HNL
8h 40m1 stop
United Airlines Logo
10:45 pm - 12:13 pmHNL-ONT
10h 28m2 stops
$396United Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 4
American Airlines Logo
6:41 am - 3:04 pmONT-HNL
10h 23m1 stop
American Airlines Logo
11:00 pm - 11:35 amHNL-ONT
10h 35m1 stop
$401American Airlines
Find Deal
Fri, Feb 6 - Wed, Feb 11
Hawaiian Airlines Logo
8:35 am - 11:38 amONT-HNL
6h 03mnonstop
Hawaiian Airlines Logo
11:09 pm - 2:12 pmHNL-ONT
12h 03m1 stop
$409Hawaiian Airlines
Find Deal
Sun, Aug 31 - Mon, Sep 8
Hawaiian Airlines Logo
9:45 am - 1:48 pmONT-HNL
6h 03mnonstop
Hawaiian Airlines Logo
1:08 pm - 8:41 pmHNL-ONT
5h 33mnonstop
$410Hawaiian Airlines
Find Deal
Tue, Nov 18 - Sat, Nov 22
United Airlines Logo
1:53 pm - 7:08 pmONT-HNL
8h 15m1 stop
United Airlines Logo
9:40 pm - 12:13 pmHNL-ONT
11h 33m2 stops
$416United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29

Hawaiian Airlines flights from Ontario to O'ahu

Our best Hawaiian Airlines deals on Ontario to O'ahu flight tickets
Hawaiian Airlines
Aug 27
ONT8:35 amOntario
6h 03m
HNL11:38 amHonolulu
Sep 3
HNL12:38 pmHonolulu
5h 32m
ONT9:10 pmOntario
$380
Find similar
Hawaiian Airlines
Aug 31
ONT8:35 amOntario
6h 03m
HNL11:38 amHonolulu
Sep 5
HNL12:38 pmHonolulu
5h 32m
ONT9:10 pmOntario
$388
Find similar
Hawaiian Airlines
Aug 24
ONT8:35 amOntario
6h 03m
HNL11:38 amHonolulu
Sep 5
HNL12:38 pmHonolulu
5h 32m
ONT9:10 pmOntario
$403
Find similar

Delta flights from Ontario to O'ahu

Our best Delta deals on Ontario to O'ahu flight tickets
Delta
Sep 13
ONT6:00 amOntario
10h 30m
1 stop
HNL1:30 pmHonolulu
Sep 19
HNL7:10 pmHonolulu
10h 47m
1 stop
ONT8:57 amOntario
$376
Find similar
Delta
Sep 6
ONT6:05 amOntario
13h 46m
2 stops
HNL4:51 pmHonolulu
Sep 11
HNL10:33 pmHonolulu
9h 36m
1 stop
ONT11:09 amOntario
$381
Find similar
Delta
Aug 31
ONT11:40 amOntario
10h 25m
1 stop
HNL7:05 pmHonolulu
Sep 10
HNL10:42 pmHonolulu
9h 27m
1 stop
ONT11:09 amOntario
$384
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to O'ahu 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, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Ontario to O'ahu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 11/5

11:59 am-8:04 pm

1 stop10h 05m

Honolulu

Sun 1/25

9:40 pm-10:39 am

1 stop10h 59m

$368

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 11/3

9:45 am-1:48 pm

Nonstop6h 03m

Honolulu

Mon 11/17

9:40 am-5:14 pm

Nonstop5h 34m

$370

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 9/6

8:35 am-11:38 am

Nonstop6h 03m

Honolulu

Wed 9/10

12:38 pm-9:10 pm

Nonstop5h 32m

$372

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 9/13

6:00 am-1:30 pm

1 stop10h 30m

Honolulu

Fri 9/19

7:10 pm-8:57 am

1 stop10h 47m

$376

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 9/6

6:05 am-4:51 pm

2 stops13h 46m

Honolulu

Thu 9/11

10:33 pm-11:09 am

1 stop9h 36m

$381

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 8/31

6:00 am-11:40 am

1 stop8h 40m

Honolulu

Thu 9/4

10:45 pm-12:13 pm

2 stops10h 28m

$396

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 2/6

6:41 am-3:04 pm

1 stop10h 23m

Honolulu

Wed 2/11

11:00 pm-11:35 am

1 stop10h 35m

$401

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 8/31

8:35 am-11:38 am

Nonstop6h 03m

Honolulu

Mon 9/8

11:09 pm-2:12 pm

1 stop12h 03m

$409

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 11/18

9:45 am-1:48 pm

Nonstop6h 03m

Honolulu

Sat 11/22

1:08 pm-8:41 pm

Nonstop5h 33m

$410

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 9/26

1:53 pm-7:08 pm

1 stop8h 15m

Honolulu

Mon 9/29

9:40 pm-12:13 pm

2 stops11h 33m

$416

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to O'ahu from

How to get the cheapest flight ticket from Ontario to O'ahu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to O'ahu?

The month of February is another great option to travel to O'ahu, with average flight prices from Ontario averaging around $356.

What is the cheapest day to depart on your flight to O'ahu?

According to our data, Wednesday is the cheapest day to fly to O'ahu from Ontario. The lowest ticket price found for a Wednesday departure recently was $444. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to O'ahu on Saturday is $563.

What is the cheapest time of day to depart on your flight to O'ahu?

According to our data, the cheapest time of day to fly to O'ahu is in the afternoon. momondo users have found flights departing from Ontario to O'ahu in the afternoon for as low as $376. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $493.

What is the cheapest Ontario to O'ahu flight route?

Fly from Ontario to Honolulu for the best Ontario - O'ahu flight prices

How far in advance should I book a flight to O'ahu?

You are more likely to see cheaper flights to O'ahu from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to O'ahu for around $486 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to O'ahu from Ontario for as low as $425 on momondo.

What cabin class options are available on Ontario to O'ahu flights?

There are 4 cabin classes available to choose from on Ontario to O'ahu flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to O'ahu flights?

No. A direct flight is the cheapest option for a flight between Ontario to O'ahu.

Cheap Ontario to O'ahu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to O'ahu

Best Price Found

$327

Fastest flight time

5h 55m

Direct flights

Every day

Airports in O'ahu

1 airport
The best one-way flight to O'ahu from Ontario in the past 72 hours is $327. The best round-trip flight deal from Ontario to O'ahu found on momondo in the last 72 hours is $422.
The fastest flight from Ontario to O'ahu takes 5h 55m
Direct flights go from Ontario to O'ahu every day.
There is 1 airport near O'ahu: Honolulu (HNL)
Search flight deals

  • When did momondo last update prices for flights from Ontario Airport to O'ahu?

    Prices for flights from Ontario Airport to O'ahu are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to O'ahu?

  • How old do you have to be to fly from Ontario Airport to O'ahu?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to O'ahu.

  • What documentation or ID do you need to fly to O'ahu?

    The required travel and health documents for your O'ahu trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at O'ahu. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ontario to O'ahu?

Best airlines flying from Ontario to O'ahu

Compare and see reviews for airlines that fly from Ontario to O'ahu with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $158Free CancellationRating
7.9
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $269Free CancellationRating
7.8
2,668 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $317Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $357Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to O'ahu?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to O'ahu from Ontario.

Can I find flights from Ontario to O'ahu with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to O'ahu flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to O'ahu?

momondo provides multiple filters to help you find the best flight to O'ahu from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to O'ahu right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to O'ahu flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to O'ahu

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