What airlines fly to Kaua'i?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Kaua'i from Ontario according to our data. United Airlines is the first choice among our users, with 27% 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?

Alaska Airlines and Delta 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 May 2026, there are 4 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.

$190 Cheap Flights from Ontario to Kaua'i in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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.

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$344Delta

Tue, Sep 8 - Mon, Sep 14

11:55 am - 7:20 pm

ONT

LIH

10h 25m

1 stop

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$350Delta

Mon, Aug 17 - Fri, Aug 28

6:00 am - 7:20 pm

ONT

LIH

16h 20m

2 stops

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$355Delta

Tue, Aug 18 - Thu, Aug 27

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$384Delta

Sun, Sep 13 - Wed, Sep 16

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$388Delta

Sun, Sep 13 - Tue, Sep 29

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 11:14 am

LIH

ONT

10h 29m

1 stop

$389Delta

Fri, Sep 11 - Thu, Sep 17

11:55 am - 7:20 pm

ONT

LIH

10h 25m

1 stop

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$390Delta

Sun, Aug 23 - Fri, Aug 28

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$394Delta

Sun, Sep 6 - Wed, Sep 16

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$395Delta

Fri, Aug 21 - Thu, Aug 27

7:00 am - 7:20 pm

ONT

LIH

15h 20m

1 stop

9:45 pm - 4:14 pm

LIH

ONT

15h 29m

2 stops

$396Delta

Sun, Sep 6 - Tue, Sep 15

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Alaska Airlines flights from Ontario to Kaua'i

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

Alaska Airlines

Aug 12

ONT2:05 pmOntario

10h 20m

1 stop

LIH9:25 pmLihue

Aug 19

LIH9:35 pmLihue

10h 29m

1 stop

ONT11:04 amOntario

$412

Alaska Airlines

Jul 28

ONT2:05 pmOntario

10h 20m

1 stop

LIH9:25 pmLihue

Aug 12

LIH10:28 pmLihue

9h 46m

1 stop

ONT11:14 amOntario

$413

Alaska Airlines

Jul 8

ONT2:05 pmOntario

10h 20m

1 stop

LIH9:25 pmLihue

Jul 15

LIH10:28 pmLihue

11h 41m

1 stop

ONT1:09 pmOntario

$424

Delta flights from Ontario to Kaua'i

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

Delta

Sep 8

ONT7:00 amOntario

15h 20m

1 stop

LIH7:20 pmLihue

Sep 14

LIH9:45 pmLihue

10h 29m

1 stop

ONT11:14 amOntario

$344

Delta

Aug 17

ONT11:55 amOntario

10h 25m

1 stop

LIH7:20 pmLihue

Aug 28

LIH9:45 pmLihue

15h 29m

2 stops

ONT4:14 pmOntario

$350

Delta

Aug 18

ONT6:00 amOntario

16h 20m

2 stops

LIH7:20 pmLihue

Aug 27

LIH9:45 pmLihue

15h 29m

2 stops

ONT4:14 pmOntario

$355

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 9/8

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Mon 9/14

9:45 pm-11:14 am

1 stop10h 29m

$344

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 8/17

11:55 am-7:20 pm

1 stop10h 25m

Lihue

Fri 8/28

9:45 pm-4:14 pm

2 stops15h 29m

$350

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 8/18

6:00 am-7:20 pm

2 stops16h 20m

Lihue

Thu 8/27

9:45 pm-4:14 pm

2 stops15h 29m

$355

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 9/13

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Wed 9/16

9:45 pm-11:14 am

1 stop10h 29m

$384

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 9/13

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Tue 9/29

9:45 pm-11:14 am

1 stop10h 29m

$388

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Fri 9/11

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Thu 9/17

9:45 pm-11:14 am

1 stop10h 29m

$389

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 8/23

11:55 am-7:20 pm

1 stop10h 25m

Lihue

Fri 8/28

9:45 pm-4:14 pm

2 stops15h 29m

$390

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 9/6

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Wed 9/16

9:45 pm-4:14 pm

2 stops15h 29m

$394

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Fri 8/21

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Thu 8/27

9:45 pm-4:14 pm

2 stops15h 29m

$395

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 9/6

7:00 am-7:20 pm

1 stop15h 20m

Lihue

Tue 9/15

9:45 pm-4:14 pm

2 stops15h 29m

$396

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, August 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 $230. The month of November is another great option to travel to Kaua'i, with average flight prices from Ontario averaging around $236.

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	7h 31m
Direct flights	None

The fastest flight from Ontario to Kaua'i takes 7h 31m

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 May 2026, there are 4 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 13.36% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 12.73%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.01%, and Airbus A320neo at 10.46%.

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
Delta	PriceFrom $236	Free Cancellation	Rating 7.9 8,463 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,675 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $352	Free Cancellation	Rating 7.9 12,318 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $409	Free Cancellation	Rating 8.0 4,317 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.