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 38% 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.

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

Southwest is the most popular carrier 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 July 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.

$168 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.

8:00 am - 2:30 pm

ONT

ITO

9h 30m

1 stop

6:55 pm - 7:40 am

ITO

ONT

9h 45m

2 stops

$356Southwest

Mon, Sep 14 - Wed, Sep 30

8:00 am - 2:30 pm

ONT

ITO

9h 30m

1 stop

6:55 pm - 7:40 am

ITO

ONT

9h 45m

2 stops

$378Southwest

Mon, Sep 14 - Wed, Sep 30

6:30 am - 6:10 pm

ONT

ITO

14h 40m

2 stops

6:55 pm - 7:40 am

ITO

ONT

9h 45m

2 stops

$399Southwest

Mon, Sep 14 - Wed, Sep 30

7:20 am - 3:14 pm

ONT

ITO

9h 54m

1 stop

4:44 pm - 9:28 pm

ITO

ONT

26h 44m

1 stop

$402Multiple Airlines

Tue, Nov 10 - Wed, Dec 2

6:30 am - 6:10 pm

ONT

ITO

14h 40m

2 stops

6:55 pm - 7:40 am

ITO

ONT

9h 45m

2 stops

$411Southwest

Mon, Sep 14 - Wed, Sep 30

8:00 am - 6:10 pm

ONT

ITO

13h 10m

1 stop

6:00 am - 8:15 pm

ITO

ONT

11h 15m

1 stop

$413Southwest

Mon, Sep 7 - Thu, Sep 10

12:00 pm - 7:04 am

ONT

ITO

21h 04m

2 stops

2:56 pm - 11:18 am

ITO

ONT

18h 22m

2 stops

$421Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

8:00 am - 6:10 pm

ONT

ITO

13h 10m

1 stop

8:00 am - 10:20 pm

ITO

ONT

11h 20m

2 stops

$423Southwest

Mon, Sep 7 - Thu, Sep 10

10:47 am - 7:03 am

ONT

ITO

23h 16m

2 stops

7:35 am - 10:10 pm

ITO

ONT

11h 35m

1 stop

$428Multiple Airlines

Sun, Aug 23 - Thu, Aug 27

7:59 pm - 2:25 pm

ONT

ITO

21h 26m

2 stops

8:45 pm - 10:10 pm

ITO

ONT

22h 25m

1 stop

$429Multiple Airlines

Mon, Sep 14 - Mon, Sep 28

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Southwest flights from Ontario to Hilo

Our best Southwest deals on Ontario to Hilo flight tickets

Southwest

Sep 14

ONT8:00 amOntario

9h 30m

1 stop

ITO2:30 pmHilo Intl

Sep 30

ITO6:55 pmHilo Intl

9h 45m

2 stops

ONT7:40 amOntario

$356

Southwest

Sep 14

ONT8:00 amOntario

9h 30m

1 stop

ITO2:30 pmHilo Intl

Sep 30

ITO6:55 pmHilo Intl

9h 45m

2 stops

ONT7:40 amOntario

$378

Southwest

Sep 14

ONT6:30 amOntario

14h 40m

2 stops

ITO6:10 pmHilo Intl

Sep 30

ITO6:55 pmHilo Intl

9h 45m

2 stops

ONT7:40 amOntario

$399

American Airlines flights from Ontario to Hilo

Our best American Airlines deals on Ontario to Hilo flight tickets

American Airlines

Jul 30

ONT7:15 pmOntario

22h 12m

2 stops

ITO2:27 pmHilo Intl

Aug 4

ITO4:47 pmHilo Intl

22h 28m

2 stops

ONT6:15 pmOntario

$903

American Airlines

Aug 9

ONT6:15 amOntario

16h 58m

3 stops

ITO8:13 pmHilo Intl

Aug 15

ITO8:45 pmHilo Intl

19h 23m

2 stops

ONT7:08 pmOntario

$1,071

American Airlines

Aug 8

ONT6:15 amOntario

18h 44m

3 stops

ITO9:59 pmHilo Intl

Aug 22

ITO8:45 pmHilo Intl

19h 30m

2 stops

ONT7:15 pmOntario

$1,078

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/14

8:00 am-2:30 pm

1 stop9h 30m

Hilo Intl

Wed 9/30

6:55 pm-7:40 am

2 stops9h 45m

$356

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/14

8:00 am-2:30 pm

1 stop9h 30m

Hilo Intl

Wed 9/30

6:55 pm-7:40 am

2 stops9h 45m

$378

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/14

6:30 am-6:10 pm

2 stops14h 40m

Hilo Intl

Wed 9/30

6:55 pm-7:40 am

2 stops9h 45m

$399

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/10

7:20 am-3:14 pm

1 stop9h 54m

Hilo Intl

Wed 12/2

4:44 pm-9:28 pm

1 stop26h 44m

$402

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/14

6:30 am-6:10 pm

2 stops14h 40m

Hilo Intl

Wed 9/30

6:55 pm-7:40 am

2 stops9h 45m

$411

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/7

8:00 am-6:10 pm

1 stop13h 10m

Hilo Intl

Thu 9/10

6:00 am-8:15 pm

1 stop11h 15m

$413

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/3

12:00 pm-7:04 am

2 stops21h 04m

Hilo Intl

Tue 11/10

2:56 pm-11:18 am

2 stops18h 22m

$421

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/7

8:00 am-6:10 pm

1 stop13h 10m

Hilo Intl

Thu 9/10

8:00 am-10:20 pm

2 stops11h 20m

$423

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 8/23

10:47 am-7:03 am

2 stops23h 16m

Hilo Intl

Thu 8/27

7:35 am-10:10 pm

1 stop11h 35m

$428

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 9/14

7:59 pm-2:25 pm

2 stops21h 26m

Hilo Intl

Mon 9/28

8:45 pm-10:10 pm

1 stop22h 25m

$429

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 May is, on average, the cheapest month to fly to Hilo from Ontario, with most prices found around $0. If you’re not able to fly to Hilo in May, then March is your next best option. Flight prices from Ontario to Hilo during March average around $0.

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 54m
Direct flights	None

The fastest flight from Ontario to Hilo takes 7h 54m

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 54m.
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 July 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 Southwest, 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
Southwest	PriceFrom $401	Free Cancellation	Rating 8.0 4,232 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.