What is the cheapest airline that flies from Ontario to Hilo Intl?

Southwest is the most popular carrier operating from Ontario to Hilo Intl

What airlines fly to Hilo?

United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Hilo 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 Hilo. Keep in mind that there are 7 different airlines that fly to Hilo 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 Hilo Intl Airport?

Prices for flights from Ontario Airport to Hilo Intl Airport were last updated today.

How many operators does momondo search for flights from Ontario Airport to Hilo Intl Airport?

As of June 2026, there is 1 operator available to choose from for flights from Ontario Airport to Hilo Intl Airport.

How old do you have to be to fly from Ontario Airport to Hilo Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Hilo Intl Airport.

What documentation or ID do you need to fly to Hilo Intl Airport?

The travel and health documents required for your trip to Hilo Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hilo Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$258 Cheap Flights from Ontario to Hilo in 2026

Find the cheapest flights from Ontario to Hilo

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 am - 4:58 pm

ONT

ITO

13h 43m

2 stops

6:49 pm - 12:03 pm

ITO

ONT

14h 14m

2 stops

$474American Airlines

Thu, Aug 20 - Tue, Aug 25

6:15 am - 9:54 pm

ONT

ITO

18h 39m

2 stops

6:49 pm - 12:03 pm

ITO

ONT

14h 14m

2 stops

$487American Airlines

Mon, Aug 24 - Tue, Aug 25

9:31 am - 3:13 pm

ONT

ITO

8h 42m

1 stop

11:27 am - 10:10 pm

ITO

ONT

7h 43m

1 stop

$515Multiple Airlines

Tue, Sep 8 - Thu, Sep 10

9:31 am - 4:12 pm

ONT

ITO

9h 41m

1 stop

6:49 pm - 10:10 pm

ITO

ONT

24h 21m

1 stop

$517Multiple Airlines

Wed, Aug 26 - Tue, Sep 8

12:12 pm - 9:54 pm

ONT

ITO

12h 42m

2 stops

9:26 am - 10:10 pm

ITO

ONT

9h 44m

1 stop

$519Multiple Airlines

Tue, Sep 22 - Wed, Sep 23

9:31 am - 3:13 pm

ONT

ITO

8h 42m

1 stop

5:58 pm - 11:16 am

ITO

ONT

14h 18m

2 stops

$525Multiple Airlines

Wed, Aug 26 - Tue, Sep 8

7:12 am - 4:12 pm

ONT

ITO

12h 00m

2 stops

8:45 pm - 10:10 pm

ITO

ONT

22h 25m

1 stop

$526Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

7:12 am - 5:26 pm

ONT

ITO

13h 14m

2 stops

7:44 pm - 11:04 am

ITO

ONT

12h 20m

2 stops

$529Multiple Airlines

Wed, Aug 19 - Wed, Aug 19

7:12 am - 5:26 pm

ONT

ITO

13h 14m

2 stops

6:49 pm - 2:16 pm

ITO

ONT

16h 27m

2 stops

$535Multiple Airlines

Wed, Aug 26 - Tue, Sep 8

9:11 am - 4:15 pm

ONT

ITO

10h 04m

1 stop

9:26 am - 9:45 pm

ITO

ONT

9h 19m

1 stop

$545Multiple Airlines

Sun, Jul 26 - Thu, Jul 30

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Southwest flights from Ontario to Hilo

Our best Southwest deals on Ontario to Hilo flight tickets

Southwest

Jun 14

ONT5:05 amOntario

12h 25m

2 stops

ITO2:30 pmHilo Intl

Jun 20

ITO8:00 amHilo Intl

11h 50m

2 stops

ONT10:50 pmOntario

$635

Southwest

Jun 14

ONT5:40 amOntario

15h 30m

2 stops

ITO6:10 pmHilo Intl

Jun 20

ITO6:00 amHilo Intl

11h 45m

1 stop

ONT8:45 pmOntario

$665

Southwest

Jul 2

ONT8:00 amOntario

9h 30m

1 stop

ITO2:30 pmHilo Intl

Jul 7

ITO8:00 amHilo Intl

11h 15m

2 stops

ONT10:15 pmOntario

$755

American Airlines flights from Ontario to Hilo

Our best American Airlines deals on Ontario to Hilo flight tickets

American Airlines

Aug 20

ONT6:15 amOntario

13h 43m

2 stops

ITO4:58 pmHilo Intl

Aug 25

ITO6:49 pmHilo Intl

14h 14m

2 stops

ONT12:03 pmOntario

$474

American Airlines

Aug 24

ONT6:15 amOntario

18h 39m

2 stops

ITO9:54 pmHilo Intl

Aug 25

ITO6:49 pmHilo Intl

14h 14m

2 stops

ONT12:03 pmOntario

$487

American Airlines

Aug 9

ONT8:01 pmOntario

21h 26m

2 stops

ITO2:27 pmHilo Intl

Aug 15

ITO5:59 pmHilo Intl

15h 04m

2 stops

ONT12:03 pmOntario

$580

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 8/20

6:15 am-4:58 pm

2 stops13h 43m

Hilo Intl

Tue 8/25

6:49 pm-12:03 pm

2 stops14h 14m

$474

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 8/24

6:15 am-9:54 pm

2 stops18h 39m

Hilo Intl

Tue 8/25

6:49 pm-12:03 pm

2 stops14h 14m

$487

Quickest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/8

9:31 am-3:13 pm

1 stop8h 42m

Hilo Intl

Thu 9/10

11:27 am-10:10 pm

1 stop7h 43m

$515

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 8/26

9:31 am-4:12 pm

1 stop9h 41m

Hilo Intl

Tue 9/8

6:49 pm-10:10 pm

1 stop24h 21m

$517

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/22

12:12 pm-9:54 pm

2 stops12h 42m

Hilo Intl

Wed 9/23

9:26 am-10:10 pm

1 stop9h 44m

$519

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 8/26

9:31 am-3:13 pm

1 stop8h 42m

Hilo Intl

Tue 9/8

5:58 pm-11:16 am

2 stops14h 18m

$525

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 9/17

7:12 am-4:12 pm

2 stops12h 00m

Hilo Intl

Mon 9/21

8:45 pm-10:10 pm

1 stop22h 25m

$526

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 8/19

7:12 am-5:26 pm

2 stops13h 14m

Hilo Intl

Wed 8/19

7:44 pm-11:04 am

2 stops12h 20m

$529

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 8/26

7:12 am-5:26 pm

2 stops13h 14m

Hilo Intl

Tue 9/8

6:49 pm-2:16 pm

2 stops16h 27m

$535

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 7/26

9:11 am-4:15 pm

1 stop10h 04m

Hilo Intl

Thu 7/30

9:26 am-9:45 pm

1 stop9h 19m

$545

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 Hilo

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

Can stopping save me money on Ontario to Hilo flights?

You could potentially save up to 13% on your flight if you consider stops on a Ontario to Hilo flight.

When to book flights from Ontario to Hilo

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Hilo according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Hilo (ONT to ITO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Hilo

Fastest flight time	7h 51m
Direct flights	None

The fastest flight from Ontario to Hilo takes 7h 51m

There are no direct flights from Ontario to Hilo. There are no popular flight routes from Ontario to Hilo.

Search flight deals

Frequently asked questions about flying from Ontario to Hilo

How far is Ontario to Hilo Intl by plane?
The straight-line distance from Ontario to Hilo Intl is 2490.9 mi. A reasonable flight in good conditions will take 7h 51m.
When did momondo last update prices for flights from Ontario Airport to Hilo Intl Airport?
Prices for flights from Ontario Airport to Hilo Intl Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Hilo Intl Airport?
As of June 2026, there is 1 operator available to choose from for flights from Ontario Airport to Hilo Intl Airport.
How old do you have to be to fly from Ontario Airport to Hilo Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Hilo Intl Airport.
What documentation or ID do you need to fly to Hilo Intl Airport?
The travel and health documents required for your trip to Hilo Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hilo Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Ontario to Hilo?
momondo data reveals that the most frequently booked airline on the route from Ontario to Hilo is Alaska Airlines, representing 100% of all bookings.

Best airlines flying from Ontario to Hilo

Compare and see reviews for airlines that fly from Ontario to Hilo with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $370	Free Cancellation	Rating 7.9 12,478 reviews		Search Alaska Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Hilo?

It is quick and easy to find Ontario to Hilo 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 Hilo that suits you.

Can I find flights from Ontario to Hilo with flexible booking policies on momondo?

All flight searches from Ontario to Hilo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Hilo?

momondo provides multiple filters to help you find the best flight to Hilo from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Ontario to Hilo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.