What is the cheapest airline that flies from Ontario to The Big Island?

United Airlines, Delta, and American Airlines are the most popular carriers operating from Ontario to The Big Island

What airlines fly to The Big Island?

United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to The Big Island from Ontario according to our data. United Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to The Big Island. Keep in mind that there are 7 different airlines that fly to The Big Island 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 The Big Island?

Prices for flights from Ontario Airport to The Big Island are updated daily.

How many operators does momondo search for flights from Ontario Airport to The Big Island?

As of June 2026, there are 4 operators available to choose from for flights from Ontario Airport to The Big Island.

How old do you have to be to fly from Ontario Airport to The Big Island?

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 The Big Island.

What documentation or ID do you need to fly to The Big Island?

The required travel and health documents for your The Big Island 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 The Big Island. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$197 Cheap Flights from Ontario to The Big Island in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to The Big Island

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 am - 5:31 pm

ONT

KOA

14h 11m

1 stop

9:03 pm - 12:10 pm

KOA

ONT

12h 07m

2 stops

$308Delta

Wed, Sep 16 - Wed, Sep 23

6:20 am - 5:35 pm

ONT

KOA

14h 15m

1 stop

9:45 pm - 11:14 am

KOA

ONT

10h 29m

1 stop

$323Delta

Wed, Sep 2 - Wed, Sep 9

6:00 am - 3:45 pm

ONT

KOA

11h 45m

1 stop

9:40 pm - 12:30 pm

KOA

ONT

12h 50m

2 stops

$329Delta

Wed, Nov 11 - Mon, Nov 16

6:00 am - 6:54 pm

ONT

KOA

14h 54m

2 stops

9:40 pm - 12:30 pm

KOA

ONT

12h 50m

2 stops

$334Delta

Wed, Nov 11 - Mon, Nov 16

1:52 pm - 9:27 pm

ONT

KOA

10h 35m

1 stop

10:55 pm - 12:18 pm

KOA

ONT

10h 23m

1 stop

$363United Airlines

Thu, Oct 15 - Wed, Oct 21

7:15 am - 12:25 pm

ONT

KOA

8h 10m

1 stop

6:05 am - 8:10 pm

KOA

ONT

11h 05m

1 stop

$404Southwest

Wed, Sep 2 - Wed, Sep 9

6:20 am - 5:35 pm

ONT

KOA

14h 15m

1 stop

9:03 pm - 11:04 am

KOA

ONT

11h 01m

1 stop

$408Delta

Tue, Aug 11 - Tue, Sep 15

9:11 am - 9:50 pm

ONT

KOA

15h 39m

1 stop

8:03 am - 11:11 pm

KOA

ONT

12h 08m

1 stop

$411Multiple Airlines

Mon, Aug 17 - Tue, Aug 18

6:00 am - 12:48 pm

ONT

KOA

9h 48m

1 stop

11:05 pm - 12:12 pm

KOA

ONT

10h 07m

1 stop

$412United Airlines

Mon, Aug 24 - Wed, Aug 26

7:20 am - 1:11 pm

ONT

ITO

7h 51m

1 stop

9:26 am - 9:32 pm

ITO

ONT

10h 06m

1 stop

$425Multiple Airlines

Tue, Nov 3 - Wed, Nov 4

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Delta flights from Ontario to The Big Island

Our best Delta deals on Ontario to The Big Island flight tickets

Delta

Sep 2

ONT6:20 amOntario

14h 15m

1 stop

KOA5:35 pmKona Intl

Sep 9

KOA9:45 pmKona Intl

10h 29m

1 stop

ONT11:14 amOntario

$323

Delta

Nov 11

ONT6:00 amOntario

11h 45m

1 stop

KOA3:45 pmKona Intl

Nov 16

KOA9:40 pmKona Intl

12h 50m

2 stops

ONT12:30 pmOntario

$329

Delta

Nov 11

ONT6:00 amOntario

14h 54m

2 stops

KOA6:54 pmKona Intl

Nov 16

KOA9:40 pmKona Intl

12h 50m

2 stops

ONT12:30 pmOntario

$334

Southwest flights from Ontario to The Big Island

Our best Southwest deals on Ontario to The Big Island flight tickets

Southwest

Sep 2

ONT7:15 amOntario

8h 10m

1 stop

KOA12:25 pmKona Intl

Sep 9

KOA6:05 amKona Intl

11h 05m

1 stop

ONT8:10 pmOntario

$404

Southwest

Nov 9

ONT1:35 pmOntario

9h 50m

2 stops

KOA9:25 pmKona Intl

Nov 12

KOA11:40 amKona Intl

8h 30m

1 stop

ONT10:10 pmOntario

$435

Southwest

Nov 9

ONT1:35 pmOntario

9h 50m

2 stops

KOA9:25 pmKona Intl

Nov 12

KOA6:00 amKona Intl

10h 10m

2 stops

ONT6:10 pmOntario

$445

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 9/16

6:20 am-5:31 pm

1 stop14h 11m

Kona Intl

Wed 9/23

9:03 pm-12:10 pm

2 stops12h 07m

$308

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 9/2

6:20 am-5:35 pm

1 stop14h 15m

Kona Intl

Wed 9/9

9:45 pm-11:14 am

1 stop10h 29m

$323

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 11/11

6:00 am-3:45 pm

1 stop11h 45m

Kona Intl

Mon 11/16

9:40 pm-12:30 pm

2 stops12h 50m

$329

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 11/11

6:00 am-6:54 pm

2 stops14h 54m

Kona Intl

Mon 11/16

9:40 pm-12:30 pm

2 stops12h 50m

$334

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Thu 10/15

1:52 pm-9:27 pm

1 stop10h 35m

Kona Intl

Wed 10/21

10:55 pm-12:18 pm

1 stop10h 23m

$363

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 9/2

7:15 am-12:25 pm

1 stop8h 10m

Kona Intl

Wed 9/9

6:05 am-8:10 pm

1 stop11h 05m

$404

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Tue 8/11

6:20 am-5:35 pm

1 stop14h 15m

Kona Intl

Tue 9/15

9:03 pm-11:04 am

1 stop11h 01m

$408

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/17

9:11 am-9:50 pm

1 stop15h 39m

Kona Intl

Tue 8/18

8:03 am-11:11 pm

1 stop12h 08m

$411

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/24

6:00 am-12:48 pm

1 stop9h 48m

Kona Intl

Wed 8/26

11:05 pm-12:12 pm

1 stop10h 07m

$412

Quickest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/3

7:20 am-1:11 pm

1 stop7h 51m

Hilo Intl

Wed 11/4

9:26 am-9:32 pm

1 stop10h 06m

$425

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 The Big Island

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 The Big Island?

The month of October is, on average, the cheapest month to fly to The Big Island from Ontario, with most prices found around $137. If you’re not able to fly to The Big Island in October, then July is your next best option. Flight prices from Ontario to The Big Island during July average around $154.

Can stopping save me money on Ontario to The Big Island flights?

No. A direct flight is the cheapest option for a flight between Ontario to The Big Island.

Cheap Ontario to The Big Island flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to The Big Island

Fastest flight time	7h 40m
Direct flights	None

The fastest flight from Ontario to The Big Island takes 7h 40m

There are no direct flights from Ontario to The Big Island. There are no popular flight routes from Ontario to The Big Island.

Search flight deals

Frequently asked questions about flying from Ontario to The Big Island

When did momondo last update prices for flights from Ontario Airport to The Big Island?
Prices for flights from Ontario Airport to The Big Island are updated daily.
How many operators does momondo search for flights from Ontario Airport to The Big Island?
As of June 2026, there are 4 operators available to choose from for flights from Ontario Airport to The Big Island.
How old do you have to be to fly from Ontario Airport to The Big Island?
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 The Big Island.
What documentation or ID do you need to fly to The Big Island?
The required travel and health documents for your The Big Island 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 The Big Island. 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 The Big Island?
Based on momondo bookings for flights between Ontario and The Big Island, the leading plane model is Airbus A321neo, making up 14.28% of the total bookings. Other popular models include Airbus A320neo with 13.13%, Airbus A321-100/200 with 12.89%, and Boeing 737 MAX 8 with 12.71%.

Best airlines flying from Ontario to The Big Island

Compare and see reviews for airlines that fly from Ontario to The Big Island with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $137	Free Cancellation	Rating 7.8 8,407 reviews	Search Delta flights
Alaska Airlines	PriceFrom $309	Free Cancellation	Rating 7.9 12,528 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 9,843 reviews	Search United Airlines flights
Southwest	PriceFrom $365	Free Cancellation	Rating 7.9 4,235 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to The Big Island?

It is quick and easy to find Ontario to The Big Island flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to The Big Island that suits you.

Can I find flights from Ontario to The Big Island with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to The Big Island flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to The Big Island?

Once you have performed a search for Ontario to The Big Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to The Big Island right now. Can momondo alert me if prices change?

Price alerts on flights to The Big Island from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.