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

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

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 35% 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.

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 August 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.

$213 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.

9:31 am - 1:58 pm-

7h 27m

8:45 pm - 10:10 pm-

22h 25m

$416Multiple Airlines

Mon, Aug 31 - Wed, Sep 9

9:31 am - 5:03 pm-

10h 32m

7:21 pm - 10:10 pm-

23h 49m

$418Multiple Airlines

Mon, Aug 31 - Wed, Sep 9

9:31 am - 5:03 pm-

10h 32m

7:21 pm - 10:10 pm-

23h 49m

$420Multiple Airlines

Mon, Aug 31 - Wed, Sep 9

7:00 am - 3:13 pm-

11h 13m

10:24 am - 9:29 pm-

8h 05m

$425Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

9:00 am - 2:25 pm-

7h 25m

11:50 am - 10:10 pm-

8h 20m

$447Southwest

Mon, Nov 16 - Fri, Nov 20

12:00 pm - 7:23 pm-

10h 23m

9:35 pm - 11:04 am-

10h 29m

$456Alaska Airlines

Wed, Aug 26 - Tue, Sep 1

6:00 am - 4:10 pm-

13h 10m

9:25 pm - 1:35 pm-

13h 10m

$456Southwest

Wed, Sep 16 - Tue, Sep 22

8:00 am - 2:15 pm-

9h 15m

7:10 pm - 7:40 am-

9h 30m

$457Southwest

Mon, Sep 21 - Wed, Sep 30

12:12 pm - 8:14 pm-

11h 02m

9:35 pm - 11:16 am-

10h 41m

$462Alaska Airlines

Tue, Sep 8 - Tue, Sep 15

12:00 pm - 7:23 pm-

10h 23m

9:35 pm - 11:04 am-

10h 29m

$462Alaska Airlines

Wed, Aug 26 - Wed, Sep 2

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Alaska Airlines flights from Ontario to Kaua'i

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

Alaska Airlines

Aug 26

ONT12:00 pmOntario

10h 23m

1 stop

LIH7:23 pmLihue

Aug 31

LIH9:35 pmLihue

10h 29m

1 stop

ONT11:04 amOntario

$470

Alaska Airlines

Aug 18

ONT12:04 pmOntario

12h 21m

1 stop

LIH9:25 pmLihue

Aug 25

LIH9:35 pmLihue

10h 29m

1 stop

ONT11:04 amOntario

$526

Alaska Airlines

Aug 12

ONT2:05 pmOntario

10h 20m

1 stop

LIH9:25 pmLihue

Aug 25

LIH9:35 pmLihue

10h 29m

1 stop

ONT11:04 amOntario

$544

Southwest flights from Ontario to Kaua'i

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

Southwest

Sep 21

ONT8:00 amOntario

9h 15m

1 stop

LIH2:15 pmLihue

Sep 30

LIH7:10 pmLihue

9h 30m

2 stops

ONT7:40 amOntario

$457

Southwest

Aug 26

ONT6:00 amOntario

13h 10m

1 stop

LIH4:10 pmLihue

Aug 31

LIH8:20 amLihue

8h 50m

1 stop

ONT8:10 pmOntario

$463

Southwest

Oct 23

ONT8:00 amOntario

13h 10m

1 stop

LIH6:10 pmLihue

Oct 31

LIH8:20 amLihue

9h 10m

1 stop

ONT8:30 pmOntario

$469

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/31

9:31 am-1:58 pm

1 stop7h 27m

Lihue

Wed 9/9

8:45 pm-10:10 pm

1 stop22h 25m

$416

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/31

9:31 am-5:03 pm

1 stop10h 32m

Lihue

Wed 9/9

7:21 pm-10:10 pm

1 stop23h 49m

$418

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/31

9:31 am-5:03 pm

1 stop10h 32m

Lihue

Wed 9/9

7:21 pm-10:10 pm

1 stop23h 49m

$420

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Wed 10/14

7:00 am-3:13 pm

1 stop11h 13m

Lihue

Wed 10/21

10:24 am-9:29 pm

1 stop8h 05m

$425

Quickest round-trip

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 11/16

9:00 am-2:25 pm

1 stop7h 25m

Lihue

Fri 11/20

11:50 am-10:10 pm

1 stop8h 20m

$447

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Wed 8/26

12:00 pm-7:23 pm

1 stop10h 23m

Lihue

Tue 9/1

9:35 pm-11:04 am

1 stop10h 29m

$456

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Wed 9/16

6:00 am-4:10 pm

1 stop13h 10m

Lihue

Tue 9/22

9:25 pm-1:35 pm

1 stop13h 10m

$456

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 9/21

8:00 am-2:15 pm

1 stop9h 15m

Lihue

Wed 9/30

7:10 pm-7:40 am

2 stops9h 30m

$457

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 9/8

12:12 pm-8:14 pm

1 stop11h 02m

Lihue

Tue 9/15

9:35 pm-11:16 am

1 stop10h 41m

$462

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Wed 8/26

12:00 pm-7:23 pm

1 stop10h 23m

Lihue

Wed 9/2

9:35 pm-11:04 am

1 stop10h 29m

$462

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, 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 $361. The month of January is another great option to travel to Kaua'i, with average flight prices from Ontario averaging around $423.

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 00m
Direct flights	None

The fastest flight from Ontario to Kaua'i takes 8h 00m

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 August 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 14.83% of all bookings. The subsequent popular models are Airbus A320neo at 13.82%, Airbus A321-100/200 at 12.83%, and Boeing 737 MAX 8 at 10.84%.

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 $329	Free Cancellation	Rating 7.9 12,766 reviews		Search Alaska Airlines flights
Southwest	PriceFrom $471	Free Cancellation	Rating 8.0 4,220 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.