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?

Alaska Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Hilo from Ontario according to our data. Alaska Airlines is the first choice among our users, with 34% 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 April 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

1 adult

0 bags

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.

8:00 am - 2:30 pm

ONT

ITO

9h 30m

1 stop

8:45 pm - 11:25 am

ITO

ONT

11h 40m

1 stop

$452Southwest

Thu, Sep 10 - Thu, Sep 17

6:30 am - 6:10 pm

ONT

ITO

14h 40m

2 stops

8:45 pm - 9:55 am

ITO

ONT

10h 10m

1 stop

$462Southwest

Thu, Sep 10 - Thu, Sep 17

9:11 am - 3:13 pm

ONT

ITO

9h 02m

1 stop

6:26 pm - 11:14 am

ITO

ONT

13h 48m

2 stops

$497Multiple Airlines

Tue, Aug 4 - Tue, Aug 11

7:20 am - 3:13 pm

ONT

ITO

10h 53m

1 stop

9:26 am - 9:20 pm

ITO

ONT

8h 54m

1 stop

$514Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

7:20 am - 1:14 pm

ONT

ITO

8h 54m

1 stop

9:26 am - 9:20 pm

ITO

ONT

8h 54m

1 stop

$515Multiple Airlines

Mon, Aug 31 - Thu, Sep 10

11:58 am - 9:54 pm

ONT

ITO

12h 56m

2 stops

9:26 am - 9:20 pm

ITO

ONT

8h 54m

1 stop

$519Multiple Airlines

Tue, Sep 1 - Wed, Sep 2

7:20 am - 1:14 pm

ONT

ITO

8h 54m

1 stop

7:44 pm - 11:16 am

ITO

ONT

12h 32m

2 stops

$524Multiple Airlines

Tue, Sep 8 - Tue, Sep 15

7:20 am - 1:14 pm

ONT

ITO

8h 54m

1 stop

6:49 pm - 9:51 am

ITO

ONT

12h 02m

2 stops

$525Multiple Airlines

Mon, Aug 31 - Wed, Sep 2

6:12 pm - 2:25 pm

ONT

ITO

23h 13m

2 stops

4:44 pm - 9:20 pm

ITO

ONT

25h 36m

1 stop

$526Multiple Airlines

Sun, Sep 20 - Sun, Sep 27

7:10 am - 5:26 pm

ONT

ITO

13h 16m

2 stops

7:44 pm - 9:51 am

ITO

ONT

11h 07m

2 stops

$535Multiple Airlines

Tue, Sep 1 - Wed, Sep 2

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Southwest flights from Ontario to Hilo

Our best Southwest deals on Ontario to Hilo flight tickets

Southwest

Sep 10

ONT8:00 amOntario

9h 30m

1 stop

ITO2:30 pmHilo Intl

Sep 17

ITO8:45 pmHilo Intl

11h 40m

1 stop

ONT11:25 amOntario

$452

Southwest

Sep 10

ONT6:30 amOntario

14h 40m

2 stops

ITO6:10 pmHilo Intl

Sep 17

ITO8:45 pmHilo Intl

10h 10m

1 stop

ONT9:55 amOntario

$462

Southwest

May 11

ONT10:30 amOntario

14h 15m

2 stops

ITO9:45 pmHilo Intl

Jun 2

ITO6:00 amHilo Intl

13h 10m

2 stops

ONT10:10 pmOntario

$540

United Airlines flights from Ontario to Hilo

Our best United Airlines deals on Ontario to Hilo flight tickets

United Airlines

May 5

ONT1:30 pmOntario

11h 03m

2 stops

ITO9:33 pmHilo Intl

May 9

ITO5:59 pmHilo Intl

12h 42m

2 stops

ONT9:41 amOntario

$1,010

United Airlines

Apr 29

ONT11:05 amOntario

13h 28m

3 stops

ITO9:33 pmHilo Intl

May 13

ITO7:04 pmHilo Intl

14h 18m

3 stops

ONT12:22 pmOntario

$5,401

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 9/10

8:00 am-2:30 pm

1 stop9h 30m

Hilo Intl

Thu 9/17

8:45 pm-11:25 am

1 stop11h 40m

$452

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 9/10

6:30 am-6:10 pm

2 stops14h 40m

Hilo Intl

Thu 9/17

8:45 pm-9:55 am

1 stop10h 10m

$462

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 8/4

9:11 am-3:13 pm

1 stop9h 02m

Hilo Intl

Tue 8/11

6:26 pm-11:14 am

2 stops13h 48m

$497

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 9/9

7:20 am-3:13 pm

1 stop10h 53m

Hilo Intl

Wed 9/16

9:26 am-9:20 pm

1 stop8h 54m

$514

Quickest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 8/31

7:20 am-1:14 pm

1 stop8h 54m

Hilo Intl

Thu 9/10

9:26 am-9:20 pm

1 stop8h 54m

$515

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/1

11:58 am-9:54 pm

2 stops12h 56m

Hilo Intl

Wed 9/2

9:26 am-9:20 pm

1 stop8h 54m

$519

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/8

7:20 am-1:14 pm

1 stop8h 54m

Hilo Intl

Tue 9/15

7:44 pm-11:16 am

2 stops12h 32m

$524

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 8/31

7:20 am-1:14 pm

1 stop8h 54m

Hilo Intl

Wed 9/2

6:49 pm-9:51 am

2 stops12h 02m

$525

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 9/20

6:12 pm-2:25 pm

2 stops23h 13m

Hilo Intl

Sun 9/27

4:44 pm-9:20 pm

1 stop25h 36m

$526

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/1

7:10 am-5:26 pm

2 stops13h 16m

Hilo Intl

Wed 9/2

7:44 pm-9:51 am

2 stops11h 07m

$535

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 1% 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 April 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 12,280 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.