The cheapest times to fly from ONT to CSX are
- February 12th to May 13th (except the week of March 19th)
- August 27th to December 9th (except the week of September 17th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ONT to CSX is late October. Prices can be as high as $3054 for Friday flights during late December, or as low as $1073 for Saturday flights around late October.
When to Fly to Changsha
Flying from Ontario, CA (ONT) to Changsha (CSX) will usually cost between $1166 to $2043 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October with an average ticket price of $1192. Due to high demand the most expensive time to fly is late December, with an average price of $2035. Planning your trip to low-cost times can easily save you $843 on economy flights and even more on first-class flights. Generally, any price below $1517 can be considered a good price for a round-trip ONT to CSX flight.
See below for a graph of average weekly prices for the ONT to CSX route. All prices are for round-trip tickets in USD.
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Compared to other flights, the ONT to CSX flight is more expensive than the average and costs about as much as the average flight leaving from Ontario. The average price per mile (for a direct flight) is $0.13, which is far below average.
Flight Prices by Day of the Week
Saturday is usually the cheapest day to fly to CSX, and Tuesday the cheapest day to fly back into ONT. Fridays are the most expensive days to fly to Changsha, and Saturdays are the most expensive days to return to Ontario. Selecting flights on the least expensive days could save you up to $303 (17%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $1418. Return trip prices are from the CSX to ONT flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
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Return Trip Prices by Day
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Nonstop Flights and Layovers
Travelers looking to fly from ONT to CSX can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 35 minutes may not be realistic.
Flight Hacking ONT to CSX
Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ONT to CSX — but Champion Traveler does!
- Price for both tickets: $921
- Average savings: $596 (39.27%)
- Price for both tickets: $957
- Average savings: $560 (36.89%)
- Price for both tickets: $959
- Average savings: $558 (36.76%)
Flight Questions Answered
Still have questions about flying from ONT to CSX? We’ve got answers.
Which airlines fly this route?
You can find 12 major airlines flying this route most often: Air Canada, Alaska, American, Asiana, China Airlines, China Southern, Delta, Hainan, Shanghai Airlines, Shenzhen, United, Xiamen, and potentially more during busy seasons.
How far away is it from Huanghua Airport to Ontario International Airport?
The distance between the two airports is roughly 7001 miles or 11267 kilometers.
How long does it take to fly from ONT to CSX?
The real-world flight time for a nonstop ONT to CSX flight is about 13 hour 35 minutes.
How many flights go between Ontario, CA and Changsha?
It depends on the day of the week and the date, but a typical day might have around 16 available flights from ONT to CSX.
Airport Location Info
Departing Airport
Origination code | ONT |
Origination airport name | Ontario International Airport |
City | Ontario, CA |
Country | the United States |
Latitude | 34.1 |
Longitude | -117.6 |
Return Airport
Destination code | CSX |
Destination airport name | Huanghua Airport |
City | Changsha |
Country | China |
Latitude | 28.2 |
Longitude | 113.2 |
Other Resources
Flights to CSX
Flights from CSX
Popular Flights
Flights to ONT
Flights from ONT
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.