What airlines fly to Hilo?

United Airlines, Hawaiian Airlines and Alaska 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 31% of people opting to fly with this airline when traveling to Hilo. Keep in mind that there are 6 different airlines that fly to Hilo on a routine basis, so you have a few additional options to choose from.

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

Hawaiian Airlines, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Hilo Intl

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 October 2025, there are 3 operators 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.

$230 Cheap Flights from Ontario to Hilo in 2025/26

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Find the cheapest flights from Ontario to Hilo

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One-way

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Cheap round-trip flights

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6:00 am - 10:22 pmONT-ITO

18h 22m2 stops

12:31 pm - 11:05 amITO-ONT

20h 34m2 stops

$377Alaska Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 18

6:00 am - 8:30 pmONT-ITO

16h 30m2 stops

6:00 am - 5:14 pmITO-ONT

9h 14m1 stop

$418Alaska Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 18

9:47 am - 5:20 pmONT-ITO

9h 33m1 stop

6:00 am - 5:14 pmITO-ONT

9h 14m1 stop

$448Alaska Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 18

8:13 am - 4:05 pmONT-ITO

9h 52m1 stop

12:05 pm - 10:28 pmITO-ONT

8h 23m1 stop

$524Alaska Airlines

Find Deal

Sat, Jan 24 - Thu, Jan 29

7:50 am - 2:30 pmONT-ITO

8h 40m1 stop

10:56 am - 8:23 pmITO-ONT

7h 27m1 stop

$539Alaska Airlines

Find Deal

Thu, Nov 27 - Thu, Dec 4

9:25 am - 6:10 pmONT-ITO

11h 45m2 stops

6:55 pm - 10:20 amITO-ONT

13h 25m2 stops

$604Southwest

Find Deal

Sat, Nov 1 - Sat, Nov 8

10:15 am - 6:10 pmONT-ITO

9h 55m2 stops

6:00 am - 9:20 pmITO-ONT

13h 20m2 stops

$1,019Southwest

Find Deal

Thu, Dec 25 - Tue, Dec 30

9:59 am - 10:22 pmONT-ITO

14h 23m3 stops

6:43 pm - 9:01 amITO-ONT

12h 18m2 stops

$1,097Multiple Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 18

6:15 am - 6:51 pmONT-ITO

15h 36m3 stops

2:59 pm - 9:01 amITO-ONT

16h 02m2 stops

$1,236Multiple Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 8

9:53 am - 9:12 pmONT-ITO

13h 19m2 stops

7:44 pm - 8:57 amITO-ONT

11h 13m2 stops

$1,477American Airlines

Find Deal

Tue, Dec 23 - Mon, Jan 5

Alaska Airlines flights from Ontario to Hilo

Our best Alaska Airlines deals on Ontario to Hilo flight tickets

Alaska Airlines

Nov 4

ONT6:00 amOntario

18h 22m

2 stops

ITO10:22 pmHilo Intl

Nov 18

ITO12:31 pmHilo Intl

20h 34m

2 stops

ONT11:05 amOntario

$377

Find similar

Alaska Airlines

Nov 4

ONT6:00 amOntario

16h 30m

2 stops

ITO8:30 pmHilo Intl

Nov 18

ITO6:00 amHilo Intl

9h 14m

1 stop

ONT5:14 pmOntario

$418

Find similar

Alaska Airlines

Nov 4

ONT9:47 amOntario

9h 33m

1 stop

ITO5:20 pmHilo Intl

Nov 18

ITO6:00 amHilo Intl

9h 14m

1 stop

ONT5:14 pmOntario

$448

Find similar

Southwest flights from Ontario to Hilo

Our best Southwest deals on Ontario to Hilo flight tickets

Southwest

Nov 1

ONT9:25 amOntario

11h 45m

2 stops

ITO6:10 pmHilo Intl

Nov 8

ITO6:55 pmHilo Intl

13h 25m

2 stops

ONT10:20 amOntario

$604

Find similar

Southwest

Dec 25

ONT10:15 amOntario

9h 55m

2 stops

ITO6:10 pmHilo Intl

Dec 30

ITO6:00 amHilo Intl

13h 20m

2 stops

ONT9:20 pmOntario

$1,019

Find similar

Southwest

Dec 20

ONT6:30 amOntario

13h 40m

2 stops

ITO6:10 pmHilo Intl

Dec 25

ITO6:00 amHilo Intl

11h 30m

2 stops

ONT7:30 pmOntario

$1,324

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

6:00 am-10:22 pm

2 stops18h 22m

Hilo Intl

Tue 11/18

12:31 pm-11:05 am

2 stops20h 34m

$377

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

6:00 am-8:30 pm

2 stops16h 30m

Hilo Intl

Tue 11/18

6:00 am-5:14 pm

1 stop9h 14m

$418

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

9:47 am-5:20 pm

1 stop9h 33m

Hilo Intl

Tue 11/18

6:00 am-5:14 pm

1 stop9h 14m

$448

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sat 1/24

8:13 am-4:05 pm

1 stop9h 52m

Hilo Intl

Thu 1/29

12:05 pm-10:28 pm

1 stop8h 23m

$524

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 11/27

7:50 am-2:30 pm

1 stop8h 40m

Hilo Intl

Thu 12/4

10:56 am-8:23 pm

1 stop7h 27m

$539

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sat 11/1

9:25 am-6:10 pm

2 stops11h 45m

Hilo Intl

Sat 11/8

6:55 pm-10:20 am

2 stops13h 25m

$604

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 12/25

10:15 am-6:10 pm

2 stops9h 55m

Hilo Intl

Tue 12/30

6:00 am-9:20 pm

2 stops13h 20m

$1,019

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

9:59 am-10:22 pm

3 stops14h 23m

Hilo Intl

Tue 11/18

6:43 pm-9:01 am

2 stops12h 18m

$1,097

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sat 11/1

6:15 am-6:51 pm

3 stops15h 36m

Hilo Intl

Sat 11/8

2:59 pm-9:01 am

2 stops16h 02m

$1,236

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 12/23

9:53 am-9:12 pm

2 stops13h 19m

Hilo Intl

Mon 1/5

7:44 pm-8:57 am

2 stops11h 13m

$1,477

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

What is the cheapest month to fly to Hilo?

The month of February is, on average, the cheapest month to fly to Hilo from Ontario, with most prices found around $392. If you’re not able to fly to Hilo in February, then September is your next best option. Flight prices from Ontario to Hilo during September average around $488.

What is the cheapest day to depart on your flight to Hilo?

The cheapest day to depart from Ontario to Hilo is on a Wednesday. Travelers who choose to depart for Hilo on a Wednesday will often find tickets for as low as $436. Flights from Ontario to Hilo on a Friday will generally be more expensive and average around $608. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Hilo?

Our data shows that the cheapest Ontario to Hilo flights are usually those with departure times in the morning. Our users have found flights to Hilo in the morning for as low as $507. In contrast, the most expensive time of day to depart to Hilo is at noon when prices are around $737.

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

Direct flights	None

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

Search flight deals

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 57m.
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 October 2025, there are 3 operators 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 48% of all bookings. The subsequent popular airlines are Hawaiian Airlines at 31% and Southwest at 20%.

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
Hawaiian Airlines	PriceFrom $372	Free Cancellation	Rating 7.8 2,779 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $392	Free Cancellation	Rating 8.0 11,073 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $551	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest 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.