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 37% 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 October 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.

$209 Cheap Flights from Ontario to Hilo in 2026/27

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.

7:00 am - 2:21 pmONT Ontario-ITO Hilo Intl

9h 21m1 stop Honolulu

9:28 am - 9:18 pmITO Hilo Intl-ONT Ontario

9h 50m1 stop Honolulu

$417Multiple Airlines

Wed, Jan 20 - Wed, Jan 27

7:00 am - 2:21 pmONT Ontario-ITO Hilo Intl

9h 21m1 stop Honolulu

9:28 am - 9:18 pmITO Hilo Intl-ONT Ontario

9h 50m1 stop Honolulu

$417Multiple Airlines

Tue, Jan 19 - Tue, Feb 9

7:00 am - 2:21 pmONT Ontario-ITO Hilo Intl

9h 21m1 stop Honolulu

6:54 pm - 10:00 amITO Hilo Intl-ONT Ontario

13h 06m2 stops Honolulu Portland

$427Multiple Airlines

Wed, Jan 20 - Wed, Jan 27

7:10 am - 5:52 pmONT Ontario-ITO Hilo Intl

12h 42m2 stops Portland Honolulu

11:02 am - 9:18 pmITO Hilo Intl-ONT Ontario

8h 16m1 stop Honolulu

$427Multiple Airlines

Tue, Jan 19 - Tue, Feb 9

7:00 am - 3:21 pmONT Ontario-ITO Hilo Intl

10h 21m1 stop Honolulu

2:53 pm - 9:18 pmITO Hilo Intl-ONT Ontario

28h 25m1 stop Honolulu

$428Multiple Airlines

Tue, Jan 19 - Tue, Feb 9

6:00 am - 6:56 pmONT Ontario-ITO Hilo Intl

14h 56m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 9:25 pmITO Hilo Intl-ONT Ontario

22h 40m1 stop Honolulu

$436Multiple Airlines

Mon, Dec 7 - Wed, Dec 9

7:00 am - 2:21 pmONT Ontario-ITO Hilo Intl

9h 21m1 stop Honolulu

6:54 pm - 10:00 amITO Hilo Intl-ONT Ontario

13h 06m2 stops Honolulu Portland

$437Multiple Airlines

Tue, Jan 19 - Tue, Feb 9

11:36 am - 7:03 amONT Ontario-ITO Hilo Intl

21h 27m2 stops Seattle/Tacoma Intl Honolulu

11:02 am - 9:18 pmITO Hilo Intl-ONT Ontario

8h 16m1 stop Honolulu

$437Multiple Airlines

Mon, Jan 11 - Fri, Jan 15

5:35 am - 1:20 pmONT Ontario-ITO Hilo Intl

9h 45m1 stop Las Vegas Harry Reid Intl

8:00 am - 10:10 pmITO Hilo Intl-ONT Ontario

12h 10m1 stop Honolulu

$494Southwest

Sun, Nov 8 - Thu, Nov 12

5:00 am - 1:20 pmONT Ontario-ITO Hilo Intl

10h 20m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

8:00 am - 10:10 pmITO Hilo Intl-ONT Ontario

12h 10m1 stop Honolulu

$499Southwest

Sun, Nov 8 - Thu, Nov 12

Cheap last minute flights

Enter your travel dates to find the best prices.

5:35 am - 1:20 pmONT Ontario-ITO Hilo Intl

9h 45m1 stop Las Vegas Harry Reid Intl

11:35 am - 10:10 pmITO Hilo Intl-ONT Ontario

8h 35m1 stop Honolulu

$625Southwest

Sun, Nov 1 - Mon, Nov 16

5:00 am - 1:20 pmONT Ontario-ITO Hilo Intl

10h 20m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

11:35 am - 10:10 pmITO Hilo Intl-ONT Ontario

8h 35m1 stop Honolulu

$630Southwest

Sun, Nov 1 - Mon, Nov 16

1:35 pm - 9:50 pmONT Ontario-ITO Hilo Intl

10h 15m2 stops Oakland Honolulu

6:55 pm - 9:45 amITO Hilo Intl-ONT Ontario

12h 50m2 stops Honolulu Las Vegas Harry Reid Intl

$640Southwest

Sun, Nov 1 - Mon, Nov 16

9:55 am - 5:47 pmONT Ontario-ITO Hilo Intl

9h 52m1 stop Honolulu

12:38 pm - 10:43 pmITO Hilo Intl-ONT Ontario

8h 05m1 stop Honolulu

$660Multiple Airlines

Tue, Nov 3 - Sun, Nov 8

9:55 am - 4:27 pmONT Ontario-ITO Hilo Intl

8h 32m1 stop Honolulu

6:19 pm - 10:43 pmITO Hilo Intl-ONT Ontario

26h 24m1 stop Honolulu

$672Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

9:55 am - 4:27 pmONT Ontario-ITO Hilo Intl

8h 32m1 stop Honolulu

8:45 pm - 3:13 pmITO Hilo Intl-ONT Ontario

16h 28m2 stops Honolulu Seattle/Tacoma Intl

$680Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

9:55 am - 4:27 pmONT Ontario-ITO Hilo Intl

8h 32m1 stop Honolulu

2:54 pm - 11:18 amITO Hilo Intl-ONT Ontario

18h 24m2 stops Honolulu Seattle/Tacoma Intl

$680Multiple Airlines

Tue, Nov 3 - Sun, Nov 8

9:55 am - 6:56 pmONT Ontario-ITO Hilo Intl

11h 01m1 stop Honolulu

12:38 pm - 10:43 pmITO Hilo Intl-ONT Ontario

8h 05m1 stop Honolulu

$685Multiple Airlines

Tue, Nov 3 - Sat, Nov 7

7:13 pm - 2:22 pmONT Ontario-ITO Hilo Intl

21h 09m2 stops Seattle/Tacoma Intl Honolulu

9:26 am - 10:43 pmITO Hilo Intl-ONT Ontario

11h 17m1 stop Honolulu

$703Multiple Airlines

Sun, Nov 1 - Thu, Nov 5

7:00 am - 12:06 pmONT Ontario-ITO Hilo Intl

8h 06m1 stop Honolulu

11:00 am - 10:43 pmITO Hilo Intl-ONT Ontario

9h 43m1 stop Honolulu

$705Multiple Airlines

Fri, Oct 30 - Sun, Nov 1

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Southwest flights from Ontario to Hilo

Our best Southwest deals on Ontario to Hilo flight tickets

Southwest

Nov 8

ONT5:35 amOntario

9h 45m

1 stop

ITO1:20 pmHilo Intl

Nov 12

ITO8:00 amHilo Intl

12h 10m

1 stop

ONT10:10 pmOntario

$494

Southwest

Nov 8

ONT5:00 amOntario

10h 20m

2 stops

ITO1:20 pmHilo Intl

Nov 12

ITO8:00 amHilo Intl

12h 10m

1 stop

ONT10:10 pmOntario

$499

Southwest

Nov 9

ONT9:00 amOntario

11h 10m

1 stop

ITO6:10 pmHilo Intl

Nov 13

ITO11:35 amHilo Intl

8h 35m

1 stop

ONT10:10 pmOntario

$595

United Airlines flights from Ontario to Hilo

Our best United Airlines deals on Ontario to Hilo flight tickets

United Airlines

Nov 9

ONT9:25 amOntario

14h 32m

2 stops

ITO9:57 pmHilo Intl

Nov 13

ITO6:00 amHilo Intl

12h 15m

2 stops

ONT8:15 pmOntario

$769

United Airlines

Oct 30

ONT1:35 pmOntario

11h 22m

2 stops

ITO9:57 pmHilo Intl

Nov 1

ITO6:00 amHilo Intl

9h 56m

2 stops

ONT5:56 pmOntario

$1,045

United Airlines

Nov 3

ONT1:35 pmOntario

10h 22m

2 stops

ITO9:57 pmHilo Intl

Nov 10

ITO6:00 amHilo Intl

12h 15m

2 stops

ONT8:15 pmOntario

$2,009

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Wed 1/20

7:00 am-2:21 pm

1 stop9h 21m

Hilo Intl

Wed 1/27

9:28 am-9:18 pm

1 stop9h 50m

$417

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Tue 1/19

7:00 am-2:21 pm

1 stop9h 21m

Hilo Intl

Tue 2/9

9:28 am-9:18 pm

1 stop9h 50m

$417

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Wed 1/20

7:00 am-2:21 pm

1 stop9h 21m

Hilo Intl

Wed 1/27

6:54 pm-10:00 am

2 stops13h 06m

$427

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Tue 1/19

7:10 am-5:52 pm

2 stops12h 42m

Hilo Intl

Tue 2/9

11:02 am-9:18 pm

1 stop8h 16m

$427

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Tue 1/19

7:00 am-3:21 pm

1 stop10h 21m

Hilo Intl

Tue 2/9

2:53 pm-9:18 pm

1 stop28h 25m

$428

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Mon 12/7

6:00 am-6:56 pm

2 stops14h 56m

Hilo Intl

Wed 12/9

8:45 pm-9:25 pm

1 stop22h 40m

$436

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Tue 1/19

7:00 am-2:21 pm

1 stop9h 21m

Hilo Intl

Tue 2/9

6:54 pm-10:00 am

2 stops13h 06m

$437

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Mon 1/11

11:36 am-7:03 am

2 stops21h 27m

Hilo Intl

Fri 1/15

11:02 am-9:18 pm

1 stop8h 16m

$437

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Sun 11/8

5:35 am-1:20 pm

1 stop9h 45m

Hilo Intl

Thu 11/12

8:00 am-10:10 pm

1 stop12h 10m

$494

OntarioHilo

ONT Ontario - ITO Hilo Intl

ONTITO

Ontario

Sun 11/8

5:00 am-1:20 pm

2 stops10h 20m

Hilo Intl

Thu 11/12

8:00 am-10:10 pm

1 stop12h 10m

$499

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 36% 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

Best Price Found	$209
Fastest flight time	7h 30m
Direct flights	None

The best one-way flight to Hilo from Ontario in the past 72 hours is $209. The best round-trip flight deal from Ontario to Hilo found on momondo in the last 72 hours is $417.

The fastest flight from Ontario to Hilo takes 7h 30m

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 30m.
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 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 7.9 4,220 reviews		Search Southwest flights

Mountain View

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.