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Cheap flights from Ontario to Kaua'i from $187

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 Kaua'i departing on 11/14. 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 Kaua'i

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:00 am - 10:25 pmONT-LIH
18h 25m1 stop
Alaska Airlines Logo
11:25 pm - 11:19 amLIH-ONT
9h 54m1 stop
$359Alaska Airlines
Find Deal
Sun, Dec 7 - Sun, Dec 14
Alaska Airlines Logo
6:00 am - 10:25 pmONT-LIH
18h 25m1 stop
Alaska Airlines Logo
11:25 pm - 11:19 amLIH-ONT
9h 54m1 stop
$369Alaska Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Alaska Airlines Logo
6:00 am - 10:42 pmONT-LIH
18h 42m1 stop
Alaska Airlines Logo
5:00 pm - 3:08 pmLIH-ONT
20h 08m2 stops
$374Alaska Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Delta Logo
6:00 am - 6:16 pmONT-LIH
14h 16m2 stops
Delta Logo
10:55 pm - 12:18 pmLIH-ONT
11h 23m2 stops
$400Delta
Find Deal
Thu, Nov 13 - Thu, Nov 13
American Airlines Logo
6:46 am - 3:01 pmONT-LIH
10h 15m1 stop
American Airlines Logo
10:14 pm - 8:42 amLIH-ONT
8h 28m1 stop
$417American Airlines
Find Deal
Thu, Feb 12 - Tue, Feb 17
Southwest Logo
9:50 am - 4:15 pmONT-LIH
8h 25m1 stop
Southwest Logo
9:10 pm - 8:25 amLIH-ONT
9h 15m1 stop
$439Southwest
Find Deal
Thu, Nov 13 - Thu, Nov 13
Southwest Logo
8:00 am - 6:15 pmONT-LIH
12h 15m2 stops
Southwest Logo
10:00 am - 7:15 pmLIH-ONT
7h 15m1 stop
$440Southwest
Find Deal
Sun, Feb 22 - Thu, Feb 26
Delta Logo
6:00 am - 8:04 pmONT-LIH
16h 04m2 stops
Delta Logo
9:50 pm - 11:13 amLIH-ONT
11h 23m1 stop
$442Delta
Find Deal
Tue, Nov 18 - Wed, Dec 3
Hawaiian Airlines Logo
11:30 am - 10:15 pmONT-LIH
12h 45m1 stop
Hawaiian Airlines Logo
12:37 pm - 9:55 pmLIH-ONT
7h 18m1 stop
$456Hawaiian Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5
Hawaiian Airlines Logo
9:50 am - 4:57 pmONT-LIH
9h 07m1 stop
Hawaiian Airlines Logo
12:37 pm - 9:55 pmLIH-ONT
7h 18m1 stop
$463Hawaiian Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5

Delta flights from Ontario to Kaua'i

Our best Delta deals on Ontario to Kaua'i flight tickets
Delta
Nov 13
ONT6:00 amOntario
14h 16m
2 stops
LIH6:16 pmLihue
Nov 13
LIH10:55 pmLihue
11h 23m
2 stops
ONT12:18 pmOntario
$400
Find similar
Delta
Nov 18
ONT6:00 amOntario
16h 04m
2 stops
LIH8:04 pmLihue
Dec 3
LIH9:50 pmLihue
11h 23m
1 stop
ONT11:13 amOntario
$442
Find similar
Delta
Oct 27
ONT11:48 amOntario
10h 17m
1 stop
LIH7:05 pmLihue
Nov 17
LIH9:40 pmLihue
11h 28m
1 stop
ONT11:08 amOntario
$452
Find similar

Southwest flights from Ontario to Kaua'i

Our best Southwest deals on Ontario to Kaua'i flight tickets
Southwest
Nov 13
ONT9:50 amOntario
8h 25m
1 stop
LIH4:15 pmLihue
Nov 13
LIH9:10 pmLihue
9h 15m
1 stop
ONT8:25 amOntario
$439
Find similar
Southwest
Feb 22
ONT8:00 amOntario
12h 15m
2 stops
LIH6:15 pmLihue
Feb 26
LIH10:00 amLihue
7h 15m
1 stop
ONT7:15 pmOntario
$440
Find similar
Southwest
Nov 13
ONT6:15 amOntario
12h 00m
1 stop
LIH4:15 pmLihue
Nov 13
LIH9:10 pmLihue
10h 40m
2 stops
ONT9:50 amOntario
$444
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Kaua'i 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 October 16, 2025.
Use the filters below to find and compare flights from Ontario to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 12/7

6:00 am-10:25 pm

1 stop18h 25m

Lihue

Sun 12/14

11:25 pm-11:19 am

1 stop9h 54m

$359

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Wed 12/3

6:00 am-10:25 pm

1 stop18h 25m

Lihue

Mon 12/8

11:25 pm-11:19 am

1 stop9h 54m

$369

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 2/5

6:00 am-10:42 pm

1 stop18h 42m

Lihue

Mon 2/9

5:00 pm-3:08 pm

2 stops20h 08m

$374

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 11/13

6:00 am-6:16 pm

2 stops14h 16m

Lihue

Thu 11/13

10:55 pm-12:18 pm

2 stops11h 23m

$400

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 2/12

6:46 am-3:01 pm

1 stop10h 15m

Lihue

Tue 2/17

10:14 pm-8:42 am

1 stop8h 28m

$417

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 11/13

9:50 am-4:15 pm

1 stop8h 25m

Lihue

Thu 11/13

9:10 pm-8:25 am

1 stop9h 15m

$439

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 2/22

8:00 am-6:15 pm

2 stops12h 15m

Lihue

Thu 2/26

10:00 am-7:15 pm

1 stop7h 15m

$440

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 11/18

6:00 am-8:04 pm

2 stops16h 04m

Lihue

Wed 12/3

9:50 pm-11:13 am

1 stop11h 23m

$442

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 3/3

11:30 am-10:15 pm

1 stop12h 45m

Lihue

Thu 3/5

12:37 pm-9:55 pm

1 stop7h 18m

$456

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 3/3

9:50 am-4:57 pm

1 stop9h 07m

Lihue

Thu 3/5

12:37 pm-9:55 pm

1 stop7h 18m

$463

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 Kaua'i from

How to get the cheapest flight ticket from Ontario to Kaua'i

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 Kaua'i?

In general, September is the cheapest month to fly from Ontario to Kaua'i. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $407. The month of January is another great option to travel to Kaua'i, with average flight prices from Ontario averaging around $480.

What is the cheapest day to depart on your flight to Kaua'i?

According to our data, Thursday is the cheapest day to fly to Kaua'i from Ontario. The lowest ticket price found for a Thursday departure recently was $298. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $610. These prices are subject to change though, so be sure to set up a Price Alert for flights to Kaua'i.

What is the cheapest time of day to depart on your flight to Kaua'i?

The cheapest time of day to fly to Kaua'i is in the morning when flights can be purchased for as low as $496. In contrast, the most expensive time of day to depart to Kaua'i is at noon when prices are around $525.

How far in advance should I book a flight to Kaua'i?

You are more likely to see cheaper flights to Kaua'i from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Kaua'i for around $568 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kaua'i from Ontario for as low as $473 on momondo.

Can stopping save me money on Ontario to Kaua'i flights?

No. A direct flight is the cheapest option for a flight between Ontario to Kaua'i.

Cheap Ontario to Kaua'i flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Kaua'i. There are no popular flight routes from Ontario to Kaua'i.
Search flight deals

  • When did momondo last update prices for flights from Ontario Airport to Kaua'i?

    Prices for flights from Ontario Airport to Kaua'i are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Kaua'i?

  • How old do you have to be to fly from Ontario Airport to Kaua'i?

    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 Kaua'i.

  • What documentation or ID do you need to fly to Kaua'i?

    The required travel and health documents for your Kaua'i 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 Kaua'i. 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 Kaua'i?

Best airlines flying from Ontario to Kaua'i

Compare and see reviews for airlines that fly from Ontario to Kaua'i with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $230Free CancellationRating
7.9
7,982 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $265Free CancellationRating
7.8
2,781 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $361Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
United AirlinesPriceFrom $393Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $417Free CancellationRating
8.0
11,102 reviews
Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kaua'i?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Kaua'i. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Kaua'i with flexible booking policies on momondo?

Yes. All flights to Kaua'i from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Kaua'i?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kaua'i from Ontario.

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

Yes. momondo can track prices for Ontario to Kaua'i flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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