In terms of precipitation, rainfall in Hilton Head Island ranges from 2.4 - 7.8 inches per month. August is typically the wettest month, when rainfall can reach 7.8 in. November is typically the driest time to visit Hilton Head Island when rainfall is around 2.4 in.

If weather is an important factor for your trip to Hilton Head Island, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

What is the cheapest month to fly from Ontario to Hilton Head Island?

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, January can be a great choice for travel to Hilton Head Island. Flights to Hilton Head Island from Ontario in January are about $629 on average during January, but can be found for as low as $303.

What is the cheapest time of day to fly from ONT to HHH?

When flying from Ontario to Hilton Head Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Ontario to Hilton Head Island that include hotel bookings?

Yes. In addition to deals on Ontario to Hilton Head Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Hilton Head Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Hilton Head Island.

Can I find deals for business class flights from Ontario to Hilton Head Island?

Yes. Cheapflights offers flight deals from Ontario to Hilton Head Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$538+ Flights from Ontario to Hilton Head Island

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Cheap flight deals from Ontario to Hilton Head Island

Round-trip from	$538 (United Airlines)
Popular in	February
Cheapest in	January
Average price	$735

From Ontario to Hilton Head Island

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($16 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Ontario to Hilton Head Island

Cheapest flights from Ontario to Hilton Head Island
Explore the most affordable flight options available from Ontario to Hilton Head Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Sat 9/206:50 pmONT - HHH

2 stops13h 35mUnited Airlines

Sat 9/2712:21 pmHHH - ONT

2 stops11h 03mUnited Airlines

Deal found 8/12

$538

Wed 11/2610:34 pmONT - HHH

1 stop8h 41mAmerican Airlines

Mon 12/12:51 pmHHH - ONT

1 stop9h 20mAmerican Airlines

Deal found 8/12

$653

Tue 11/2511:59 pmONT - HHH

2 stops11h 20mAmerican Airlines

Mon 12/12:51 pmHHH - ONT

1 stop9h 20mAmerican Airlines

Deal found 8/12

$658

Thu 9/186:38 pmONT - HHH

2 stops13h 47mUnited Airlines

Thu 9/2511:57 amHHH - ONT

2 stops27h 54mUnited Airlines

Deal found 8/12

$768

Fri 8/157:00 amONT - HHH

1 stop28h 01mUnited Airlines

Sun 8/1712:02 pmHHH - ONT

2 stops13h 04mUnited Airlines

Deal found 8/14

$2,617

Best flights from Ontario to Hilton Head Island
Discover carefully curated flight deals from Ontario to Hilton Head Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Sat 9/206:50 pmONT - HHH

2 stops13h 35mUnited Airlines

Sat 9/2712:21 pmHHH - ONT

2 stops11h 03mUnited Airlines

Deal found 8/12

$538

Wed 11/2610:34 pmONT - HHH

1 stop8h 41mAmerican Airlines

Mon 12/12:51 pmHHH - ONT

1 stop9h 20mAmerican Airlines

Deal found 8/12

$653

Tue 11/2511:59 pmONT - HHH

2 stops11h 20mAmerican Airlines

Mon 12/12:51 pmHHH - ONT

1 stop9h 20mAmerican Airlines

Deal found 8/12

$658

Thu 9/186:38 pmONT - HHH

2 stops13h 47mUnited Airlines

Thu 9/2511:57 amHHH - ONT

2 stops27h 54mUnited Airlines

Deal found 8/12

$768

Last-minute flights from Ontario to Hilton Head Island
Discover last-minute flight deals from Ontario to Hilton Head Island. Data last updated August 14, 2025 and is based on user searches.

Fri 8/157:00 amONT - HHH

1 stop28h 01mUnited Airlines

Sun 8/1712:02 pmHHH - ONT

2 stops13h 04mUnited Airlines

Deal found 8/14

$2,617

Thu 9/186:38 pmONT - HHH

2 stops13h 47mUnited Airlines

Thu 9/2511:57 amHHH - ONT

2 stops27h 54mUnited Airlines

Deal found 8/12

$768

Sat 9/206:50 pmONT - HHH

2 stops13h 35mUnited Airlines

Sat 9/2712:21 pmHHH - ONT

2 stops11h 03mUnited Airlines

Deal found 8/12

$538

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Hilton Head Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioHilton Head Island

ONT - HHH

ONTHHH

Ontario

Sat 9/20

6:50 pm-11:25 am

2 stops13h 35m

Hilton Head Island

Sat 9/27

12:21 pm-8:24 pm

2 stops11h 03m

$538

OntarioHilton Head Island

ONT - HHH

ONTHHH

Ontario

Wed 11/26

10:34 pm-10:15 am

1 stop8h 41m

Hilton Head Island

Mon 12/1

2:51 pm-9:11 pm

1 stop9h 20m

$653

OntarioHilton Head Island

ONT - HHH

ONTHHH

Ontario

Tue 11/25

11:59 pm-2:19 pm

2 stops11h 20m

Hilton Head Island

Mon 12/1

2:51 pm-9:11 pm

1 stop9h 20m

$658

OntarioHilton Head Island

ONT - HHH

ONTHHH

Ontario

Thu 9/18

6:38 pm-11:25 am

2 stops13h 47m

Hilton Head Island

Thu 9/25

11:57 am-12:51 pm

2 stops27h 54m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Ontario to Hilton Head Island

Have a flexible travel schedule? Discover the best time to fly to Hilton Head Island from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Hilton Head Island

What is the cheapest month to book a flight from Ontario to Hilton Head Island?

Currently, January is the cheapest month in which you can book a flight from Ontario to Hilton Head Island (average of $275). Flying from Ontario to Hilton Head Island in March is currently the most expensive (average of $480). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Can I find deals for flights from Ontario to Hilton Head Island that include hotel bookings?
Yes. In addition to deals on Ontario to Hilton Head Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Hilton Head Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Hilton Head Island.
Can I find deals for business class flights from Ontario to Hilton Head Island?
Yes. Cheapflights offers flight deals from Ontario to Hilton Head Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to Hilton Head Island?
Currently, January is the cheapest month in which you can book a flight from Ontario to Hilton Head Island (average of $275). Flying from Ontario to Hilton Head Island in March is currently the most expensive (average of $480). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$538+ Cheap flights from Ontario to Hilton Head Island (ONT - HHH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Hilton Head Island with Cheapflights

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Cheap flight deals from Ontario to Hilton Head Island

Round-trip from

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Cheapest in

Average price

Find flight deals from Ontario to Hilton Head Island

Cheapest flights from Ontario to Hilton Head IslandExplore the most affordable flight options available from Ontario to Hilton Head Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Ontario to Hilton Head Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Hilton Head Island that are best for you.

Best time to book a flight from Ontario to Hilton Head Island

Have a flexible travel schedule? Discover the best time to fly to Hilton Head Island from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Hilton Head Island

What is the cheapest month to book a flight from Ontario to Hilton Head Island?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Hilton Head Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Ontario to Hilton Head Island that include hotel bookings?

How can I find direct flights from Ontario to Hilton Head Island?

Can I find deals for business class flights from Ontario to Hilton Head Island?

What is the cheapest month to book a flight from Ontario to Hilton Head Island?

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Cheapest flights from Ontario to Hilton Head Island
Explore the most affordable flight options available from Ontario to Hilton Head Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.