In terms of precipitation, rainfall in Hainan ranges from 0.8 - 10.6 inches per month. September is typically the wettest month, when rainfall can reach 10.6 in. January is typically the driest time to visit Hainan when rainfall is around 0.8 in.

If weather is an important factor for your trip to Hainan, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

How far in advance should I book a flight from Ontario to Hainan?

To save on the cost of your flight from Ontario to Hainan, book at least 44 days before your planned departure. Booking around this time can save you about 57% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $840 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,382.

What is the cheapest month to fly from Ontario to Hainan?

Our data shows that April tends to be the cheapest month to fly to Hainan from Ontario. Users have commonly found prices around $1,222 for the month, but tickets can be as low as $765. Due to multiple factors, prepare for potentially higher prices in July.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Hainan as you normally would.

What airport do you fly from for flights from Ontario to Hainan?

Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Hainan. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

Can I find deals for flights from Ontario to Hainan that include hotel bookings?

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

How can I find direct flights from Ontario to Hainan?

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

Can I find deals for business class flights from Ontario to Hainan?

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

$542+ Flights from Ontario to Hainan

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Cheap flight deals from Ontario to Hainan

Round-trip from	$1,490 (Trip.com)
One-way from	$542 (FlightHub)
Popular in	July
Cheapest in	April
Average price	$1,575

From Ontario to Hainan

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One-way flight from Ontario to Hainan

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Highest demand for flights based on searches. 20% potential increase in price ($318 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Cheapest flights from Ontario to Hainan
Explore the most affordable flight options available from Ontario to Hainan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 30, 2025.

dom. 7/2012:45 amONT - HAK

2 stops30h 35mMultiple Airlines

lun. 8/47:45 amHAK - ONT

2 stops49h 55mMultiple Airlines

Deal found 6/27

$1,490

Best flights from Ontario to Hainan
Discover carefully curated flight deals from Ontario to Hainan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 30, 2025.

dom. 7/2012:45 amONT - HAK

2 stops30h 35mMultiple Airlines

lun. 8/47:45 amHAK - ONT

2 stops49h 55mMultiple Airlines

Deal found 6/27

$1,490

Last-minute flights from Ontario to Hainan
Discover last-minute flight deals from Ontario to Hainan. Data last updated junio 30, 2025 and is based on user searches.

sáb. 7/512:45 amONT - HAK

2 stops23h 55mMultiple Airlines

dom. 7/271:35 pmHAK - ONT

2 stops20h 05mMultiple Airlines

Deal found 6/27

$1,986

dom. 7/2012:45 amONT - HAK

2 stops30h 35mMultiple Airlines

lun. 8/47:45 amHAK - ONT

2 stops49h 55mMultiple Airlines

Deal found 6/27

$1,490

One-way flights from Ontario to Hainan
Search for one-way flight options from Ontario to Hainan. Find affordable one-way fares based on user searches. Data last updated junio 30, 2025.

lun. 8/1111:45 pmONT - HAK

2 stops24h 55mMultiple Airlines

Deal found 6/28

$542

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

dom. 7/20

12:45 am-10:20 pm

2 stops30h 35m

Haikou Meilan Intl

lun. 8/4

7:45 am-6:40 pm

2 stops49h 55m

$1,490

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

lun. 8/11

11:45 pm-3:40 pm

2 stops24h 55m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Best time to book a flight from Ontario to Hainan

Have a flexible travel schedule? Discover the best time to fly to Hainan 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 Hainan

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Related info for your journey

What airport do you fly from for flights from Ontario to Hainan?
Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Hainan. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.
Can I find deals for flights from Ontario to Hainan that include hotel bookings?
Yes. In addition to deals on Ontario to Hainan flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Hainan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Hainan.
Can I find deals for business class flights from Ontario to Hainan?
Yes. Cheapflights offers flight deals from Ontario to Hainan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$542+ Cheap flights from Ontario (ONT) to Hainan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Hainan with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Hainan

Keep the following information in mind while searching for Ontario to Hainan flight deals. Data was last updated junio 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Hainan

Cheapest flights from Ontario to HainanExplore the most affordable flight options available from Ontario to Hainan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 30, 2025.

Explore the most affordable flight options available from Ontario to Hainan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Hainan

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Hainan

Related info for your journey

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

What airport do you fly from for flights from Ontario to Hainan?

Can I find deals for flights from Ontario to Hainan that include hotel bookings?

How can I find direct flights from Ontario to Hainan?

Can I find deals for business class flights from Ontario to Hainan?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Hainan

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Cheapest flights from Ontario to Hainan
Explore the most affordable flight options available from Ontario to Hainan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 30, 2025.