What airlines fly to Kaua'i?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Kaua'i from Ontario according to our data. American Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Kaua'i. Keep in mind that there are 7 different airlines that fly to Kaua'i on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Kaua'i?

United Airlines and Alaska Airlines are the most popular carriers operating from Ontario to Kaua'i

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?

As of June 2026, there are 2 operators available to choose from 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.

$181 Cheap Flights from Ontario to Kaua'i in 2026

Find the cheapest flights from Ontario to Kaua'i

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:56 am - 7:16 pm

ONT

LIH

10h 20m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$302Delta

Mon, Aug 31 - Thu, Sep 10

7:00 am - 7:22 pm

ONT

LIH

15h 22m

1 stop

9:45 pm - 4:12 pm

LIH

ONT

16h 27m

2 stops

$308Delta

Sun, Oct 25 - Wed, Nov 4

9:55 am - 7:22 pm

ONT

LIH

12h 27m

2 stops

9:45 pm - 12:30 pm

LIH

ONT

12h 45m

2 stops

$313Delta

Sun, Oct 25 - Tue, Nov 3

11:56 am - 7:16 pm

ONT

LIH

10h 20m

1 stop

9:55 pm - 11:16 am

LIH

ONT

10h 21m

1 stop

$333Delta

Mon, Aug 24 - Tue, Sep 1

7:00 am - 7:22 pm

ONT

LIH

15h 22m

1 stop

9:45 pm - 11:16 am

LIH

ONT

11h 31m

1 stop

$336Delta

Sun, Oct 25 - Sun, Nov 1

7:00 am - 8:22 pm

ONT

LIH

15h 22m

1 stop

10:45 pm - 4:12 pm

LIH

ONT

15h 27m

2 stops

$339Delta

Sun, Nov 1 - Fri, Nov 13

11:55 am - 7:22 pm

ONT

LIH

10h 27m

1 stop

10:45 pm - 4:12 pm

LIH

ONT

15h 27m

2 stops

$342Delta

Sat, Oct 31 - Wed, Nov 11

9:55 am - 7:22 pm

ONT

LIH

12h 27m

2 stops

9:45 pm - 4:12 pm

LIH

ONT

16h 27m

2 stops

$347Delta

Sun, Oct 25 - Sat, Nov 7

12:55 pm - 3:54 pm

ONT

LIH

28h 59m

1 stop

10:44 pm - 8:55 am

LIH

ONT

8h 11m

1 stop

$361American Airlines

Sat, Nov 14 - Wed, Nov 18

6:20 am - 7:16 pm

ONT

LIH

15h 56m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$362Delta

Sun, Aug 30 - Thu, Sep 10

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Southwest flights from Ontario to Kaua'i

Our best Southwest deals on Ontario to Kaua'i flight tickets

Southwest

Jun 18

ONT8:00 amOntario

13h 05m

1 stop

LIH6:05 pmLihue

Jul 9

LIH8:10 pmLihue

13h 35m

1 stop

ONT12:45 pmOntario

$555

Southwest

Jun 18

ONT8:00 amOntario

13h 05m

1 stop

LIH6:05 pmLihue

Jul 9

LIH8:10 pmLihue

11h 20m

2 stops

ONT10:30 amOntario

$560

Southwest

Jun 18

ONT8:35 amOntario

10h 35m

2 stops

LIH4:10 pmLihue

Jul 9

LIH8:10 pmLihue

11h 20m

2 stops

ONT10:30 amOntario

$570

United Airlines flights from Ontario to Kaua'i

Our best United Airlines deals on Ontario to Kaua'i flight tickets

United Airlines

Jun 25

ONT1:50 pmOntario

8h 52m

1 stop

LIH7:42 pmLihue

Jul 2

LIH10:44 pmLihue

10h 28m

1 stop

ONT12:12 pmOntario

$629

United Airlines

Jun 25

ONT6:00 amOntario

8h 50m

1 stop

LIH11:50 amLihue

Jun 29

LIH10:44 pmLihue

10h 28m

1 stop

ONT12:12 pmOntario

$694

United Airlines

Jun 20

ONT6:00 amOntario

9h 00m

1 stop

LIH12:00 pmLihue

Jun 27

LIH10:44 pmLihue

10h 28m

1 stop

ONT12:12 pmOntario

$734

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/31

11:56 am-7:16 pm

1 stop10h 20m

Lihue

Thu 9/10

9:45 pm-11:14 am

1 stop10h 29m

$302

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 10/25

7:00 am-7:22 pm

1 stop15h 22m

Lihue

Wed 11/4

9:45 pm-4:12 pm

2 stops16h 27m

$308

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 10/25

9:55 am-7:22 pm

2 stops12h 27m

Lihue

Tue 11/3

9:45 pm-12:30 pm

2 stops12h 45m

$313

Quickest round-trip

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/24

11:56 am-7:16 pm

1 stop10h 20m

Lihue

Tue 9/1

9:55 pm-11:16 am

1 stop10h 21m

$333

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 10/25

7:00 am-7:22 pm

1 stop15h 22m

Lihue

Sun 11/1

9:45 pm-11:16 am

1 stop11h 31m

$336

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 11/1

7:00 am-8:22 pm

1 stop15h 22m

Lihue

Fri 11/13

10:45 pm-4:12 pm

2 stops15h 27m

$339

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sat 10/31

11:55 am-7:22 pm

1 stop10h 27m

Lihue

Wed 11/11

10:45 pm-4:12 pm

2 stops15h 27m

$342

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 10/25

9:55 am-7:22 pm

2 stops12h 27m

Lihue

Sat 11/7

9:45 pm-4:12 pm

2 stops16h 27m

$347

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sat 11/14

12:55 pm-3:54 pm

1 stop28h 59m

Lihue

Wed 11/18

10:44 pm-8:55 am

1 stop8h 11m

$361

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 8/30

6:20 am-7:16 pm

1 stop15h 56m

Lihue

Thu 9/10

9:45 pm-11:14 am

1 stop10h 29m

$362

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Kaua'i?

In general, May 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 $258. The month of June is another great option to travel to Kaua'i, with average flight prices from Ontario averaging around $292.

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

Fastest flight time	8h 32m
Direct flights	None

The fastest flight from Ontario to Kaua'i takes 8h 32m

There are no direct flights from Ontario to Kaua'i. There are no popular flight routes from Ontario to Kaua'i.

Search flight deals

Frequently asked questions about flying from Ontario to Kaua'i

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?
As of June 2026, there are 2 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Kaua'i is Airbus A321neo, representing 14.28% of all bookings. The subsequent popular models are Airbus A320neo at 13.13%, Airbus A321-100/200 at 12.89%, and Boeing 737 MAX 8 at 12.71%.

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
Alaska Airlines	PriceFrom $341	Free Cancellation	Rating 7.9 12,521 reviews		Search Alaska Airlines flights
Southwest	PriceFrom $471	Free Cancellation	Rating 7.9 4,237 reviews		Search Southwest 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.