In terms of precipitation, rainfall in Haikou 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 Haikou when rainfall is around 0.8 in.

If weather is an important factor for your trip to Haikou, 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 Haikou?

Find a great deal and save up to 57% by booking at least 44 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Haikou within the next two weeks, with the cheapest ticket starting at $840.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Haikou. Flights to Haikou from Ontario in September are about $1,107 on average during September, but can be found for as low as $799.

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

When flying from Ontario to Haikou, 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 Haikou that include hotel bookings?

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

How can I find direct flights from Ontario to Haikou?

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

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

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

$922+ Flights from Ontario to Haikou

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Cheap flight deals from Ontario to Haikou

Round-trip from	$922 (Booking.com)
Popular in	July
Cheapest in	September
Average price	$800

From Ontario to Haikou Meilan Intl

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Highest demand for flights based on searches. 19% potential increase in price ($262 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Ontario to Haikou

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

Sat 10/2511:10 pmONT - HAK

2 stops49h 30mMultiple Airlines

Tue 11/254:50 pmHAK - ONT

2 stops39h 40mMultiple Airlines

Deal found 9/12

$922

Fri 10/2411:10 pmONT - HAK

2 stops30h 30mMultiple Airlines

Sat 11/299:20 pmHAK - ONT

2 stops59h 10mMultiple Airlines

Deal found 9/12

$977

Tue 12/3010:50 pmONT - HAK

2 stops33h 05mMultiple Airlines

Tue 1/278:00 amHAK - ONT

2 stops24h 50mMultiple Airlines

Deal found 9/11

$6,161

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

Sat 10/2511:10 pmONT - HAK

2 stops49h 30mMultiple Airlines

Tue 11/254:50 pmHAK - ONT

2 stops39h 40mMultiple Airlines

Deal found 9/12

$922

Fri 10/2411:10 pmONT - HAK

2 stops30h 30mMultiple Airlines

Sat 11/299:20 pmHAK - ONT

2 stops59h 10mMultiple Airlines

Deal found 9/12

$977

Tue 12/3010:50 pmONT - HAK

2 stops33h 05mMultiple Airlines

Tue 1/278:00 amHAK - ONT

2 stops24h 50mMultiple Airlines

Deal found 9/11

$6,161

Tue 12/2310:50 pmONT - HAK

2 stops52h 40mMultiple Airlines

Tue 1/208:00 amHAK - ONT

2 stops48h 50mMultiple Airlines

Deal found 9/11

$6,162

Last-minute flights from Ontario to Haikou
Discover last-minute flight deals from Ontario to Haikou. Data last updated September 14, 2025 and is based on user searches.

Fri 10/2411:10 pmONT - HAK

2 stops30h 30mMultiple Airlines

Sat 11/299:20 pmHAK - ONT

2 stops59h 10mMultiple Airlines

Deal found 9/12

$977

Sat 10/2511:10 pmONT - HAK

2 stops49h 30mMultiple Airlines

Tue 11/254:50 pmHAK - ONT

2 stops39h 40mMultiple Airlines

Deal found 9/12

$922

Fly from

Fly to

Route

Depart

Return

Price

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

Sat 10/25

11:10 pm-3:40 pm

2 stops49h 30m

Haikou Meilan Intl

Tue 11/25

4:50 pm-4:30 pm

2 stops39h 40m

$922

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

Fri 10/24

11:10 pm-8:40 pm

2 stops30h 30m

Haikou Meilan Intl

Sat 11/29

9:20 pm-4:30 pm

2 stops59h 10m

$977

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

Tue 12/30

10:50 pm-11:55 pm

2 stops33h 05m

Haikou Meilan Intl

Tue 1/27

8:00 am-4:50 pm

2 stops24h 50m

$6,161

OntarioHaikou

ONT - HAK

ONTHAK

Ontario

Tue 12/23

10:50 pm-7:30 pm

2 stops52h 40m

Haikou Meilan Intl

Tue 1/20

8:00 am-4:50 pm

2 stops48h 50m

$6,162

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Ontario to Haikou

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

Related info for your journey

Can I find deals for flights from Ontario to Haikou that include hotel bookings?
Yes. In addition to deals on Ontario to Haikou flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Haikou?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Haikou.
Can I find deals for business class flights from Ontario to Haikou?
Yes. Cheapflights offers flight deals from Ontario to Haikou by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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$922+ Cheap flights from Ontario (ONT) to Haikou (HAK)

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Haikou 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 Haikou

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Haikou

Cheapest flights from Ontario to HaikouExplore the most affordable flight options available from Ontario to Haikou. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

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

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Haikou

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

Related info for your journey

Find useful and relevant information for your journey from Ontario to Haikou. 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 Haikou that include hotel bookings?

How can I find direct flights from Ontario to Haikou?

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

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 Haikou

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