How long is the flight from Ontario to Xi'an?

For as low as $3,159, United Airlines can have you in Xi'an from Ontario in 36h 26m. There are 6829 mi between Ontario and Xi'an.

In terms of precipitation, rainfall in Xi'an ranges from 0.0 - 3.9 inches per month. September is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit Xi'an when rainfall is around 0.0 in.

If weather is an important factor for your trip to Xi'an, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

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

Can I find deals for flights from Ontario to Xi'an that include hotel bookings?

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

How can I find direct flights from Ontario to Xi'an?

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

Can I find deals for business class flights from Ontario to Xi'an?

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

$1,794+ Flights from Ontario to Xi'an

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Ontario to Xi'an with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Xi'an

Cheapest flights from Ontario to Xi'an
Explore the most affordable flight options available from Ontario to Xi'an. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Fri 4/312:10 am

ONT

XIY

2 stops26h 40m

Multiple Airlines

Mon 4/2711:35 am

XIY

ONT

2 stops21h 25m

Multiple Airlines

Deal found 1/27

$1,794

Sat 6/2712:10 am

ONT

XIY

2 stops23h 20m

Multiple Airlines

Sat 7/1810:50 am

XIY

ONT

2 stops21h 50m

Multiple Airlines

Deal found 1/27

$2,369

Wed 4/16:49 pm

ONT

XIY

2 stops36h 26m

United Airlines

Mon 4/271:30 pm

XIY

ONT

2 stops19h 17m

United Airlines

Deal found 1/27

$3,159

Sat 4/46:00 am

ONT

XIY

2 stops25h 15m

United Airlines

Wed 4/81:30 pm

XIY

ONT

2 stops19h 17m

United Airlines

Deal found 1/25

$4,504

Best flights from Ontario to Xi'an
Discover carefully curated flight deals from Ontario to Xi'an that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 28, 2026.

Fri 4/312:10 am

ONT

XIY

2 stops26h 40m

Multiple Airlines

Mon 4/2711:35 am

XIY

ONT

2 stops21h 25m

Multiple Airlines

Deal found 1/27

$1,794

Wed 4/16:49 pm

ONT

XIY

2 stops36h 26m

United Airlines

Mon 4/271:30 pm

XIY

ONT

2 stops19h 17m

United Airlines

Deal found 1/27

$3,159

Sat 6/2712:10 am

ONT

XIY

2 stops23h 20m

Multiple Airlines

Sat 7/1810:50 am

XIY

ONT

2 stops21h 50m

Multiple Airlines

Deal found 1/27

$2,369

Sat 4/46:00 am

ONT

XIY

2 stops25h 15m

United Airlines

Wed 4/81:30 pm

XIY

ONT

2 stops19h 17m

United Airlines

Deal found 1/25

$4,504

One-way flights from Ontario to Xi'an
Search for one-way flight options from Ontario to Xi'an. Find affordable one-way fares based on user searches. Data last updated January 28, 2026.

Mon 6/112:10 am

ONT

XIY

2 stops32h 20m

Multiple Airlines

Deal found 1/26

$3,756

Find flight deals from Ontario to Xi'an

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,794 (Mytrip)
Popular in	January
Cheapest in	November
Average price	$1,766

Provider with most accurate pricing for Los Angeles-Xi'an Xianyang flight deals.

Search Deals

Provider most trusted by Cheapflights users for Los Angeles-Xi'an Xianyang flights.

Search Deals

From Ontario to Xi'an Xianyang

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($270 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($68 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

OntarioXi'an

ONT - XIY

ONTXIY

Ontario

Fri 4/3

12:10 am-5:50 pm

2 stops26h 40m

Xi'an Xianyang

Mon 4/27

11:35 am-6:00 pm

2 stops21h 25m

$1,794

OntarioXi'an

ONT - XIY

ONTXIY

Ontario

Sat 6/27

12:10 am-2:30 pm

2 stops23h 20m

Xi'an Xianyang

Sat 7/18

10:50 am-5:40 pm

2 stops21h 50m

$2,369

OntarioXi'an

ONT - XIY

ONTXIY

Ontario

Wed 4/1

6:49 pm-10:15 pm

2 stops36h 26m

Xi'an Xianyang

Mon 4/27

1:30 pm-5:47 pm

2 stops19h 17m

$3,159

OntarioXi'an

ONT - XIY

ONTXIY

Ontario

Sat 4/4

6:00 am-10:15 pm

2 stops25h 15m

Xi'an Xianyang

Wed 4/8

1:30 pm-5:47 pm

2 stops19h 17m

$4,504

OntarioXi'an

ONT - XIY

ONTXIY

Ontario

Mon 6/1

12:10 am-11:30 pm

2 stops32h 20m

$3,756

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Best time to book a flight from Ontario to Xi'an

Have a flexible travel schedule? Discover the best time to fly to Xi'an 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 Xi'an

What is the cheapest month to book a flight from Ontario to Xi'an?

Currently, December is the cheapest month in which you can book a flight from Ontario to Xi'an (average of $617). Flying from Ontario to Xi'an in January is currently the most expensive (average of $1,766). 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

How long is the flight from Ontario to Xi'an?
For as low as $3,159, United Airlines can have you in Xi'an from Ontario in 36h 26m. There are 6829 mi between Ontario and Xi'an.
Can I find deals for flights from Ontario to Xi'an that include hotel bookings?
Yes. In addition to deals on Ontario to Xi'an flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Xi'an?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Xi'an.
Can I find deals for business class flights from Ontario to Xi'an?
Yes. Cheapflights offers flight deals from Ontario to Xi'an 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 Xi'an?
Currently, December is the cheapest month in which you can book a flight from Ontario to Xi'an (average of $617). Flying from Ontario to Xi'an in January is currently the most expensive (average of $1,766). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to Xi'an

San Francisco to Xi'an flights

Los Angeles to Xi'an flights

San Jose to Xi'an flights

San Diego to Xi'an flights

Las Vegas to Xi'an flights

Santa Ana to Xi'an flights

Monterey to Xi'an flights

Reno to Xi'an flights

Oakland to Xi'an flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$1,794+ Cheap flights from Ontario (ONT) to Xi'an (XIY)

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Xi'an 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 Xi'an

Cheapest flights from Ontario to Xi'anExplore the most affordable flight options available from Ontario to Xi'an. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Explore the most affordable flight options available from Ontario to Xi'an. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Find flight deals from Ontario to Xi'an

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Xi'an

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Xi'an

What is the cheapest month to book a flight from Ontario to Xi'an?

Related info for your journey

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

How long is the flight from Ontario to Xi'an?

Can I find deals for flights from Ontario to Xi'an that include hotel bookings?

How can I find direct flights from Ontario to Xi'an?

Can I find deals for business class flights from Ontario to Xi'an?

What is the cheapest month to book a flight from Ontario to Xi'an?

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 Xi'an

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ontario to Xi'an
Explore the most affordable flight options available from Ontario to Xi'an. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.