The cheapest times to fly from IAH to CSX are

  • January 8th to May 6th (except the weeks of January 22nd, February 5th, and March 12th)
  • August 27th to September 16th
  • October 8th to December 9th

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 IAH to CSX is late October. Prices can be as high as $3549 for Saturday flights during early August, or as low as $829 for Tuesday flights around late October.


When to Fly to Changsha

Flying from Houston, TX (IAH) to Changsha (CSX) will usually cost between $1160 to $1890 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 $1121. Due to high demand the most expensive time to fly is early August, with an average price of $2254. Planning your trip to low-cost times can easily save you $1133 on economy flights and even more on first-class flights. Generally, any price below $1423 can be considered a good price for a round-trip IAH to CSX flight.

See below for a graph of average weekly prices for the IAH to CSX route. All prices are for round-trip tickets in USD.

IAH to CSX Flight Prices

Compared to other flights, the IAH to CSX flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Houston. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $213 (13%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1380. Return trip prices are from the CSX to IAH flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAH 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 15 hour 22 minutes may not be realistic.


Flight Hacking IAH 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 IAH to CSX — but Champion Traveler does!

Hack #1: Los Angeles, CA (IAH > LAX > CSX)

  • Price for both tickets: $881
  • Average savings: $542 (38.09%)

See IAH to LAX flights

Hack #2: Bangkok (IAH > BKK > CSX)

  • Price for both tickets: $971
  • Average savings: $453 (31.8%)

See IAH to BKK flights

Hack #3: Chiang Mai (IAH > CNX > CSX)

  • Price for both tickets: $1009
  • Average savings: $414 (29.09%)

See IAH to CNX flights


Flight Questions Answered

Still have questions about flying from IAH to CSX? We’ve got answers.

Which airlines fly this route?

You can find 18 major airlines flying this route most often: Air Canada, Air China, Alaska, American, ANA, Asiana, Cathay Pacific, China Airlines, China Southern, Delta, EVA Air, Hainan, KLM, Korean Air, Lufthansa, Shenzhen, United, Xiamen, and potentially more during busy seasons.

How far away is it from Huanghua Airport to George Bush Intercontinental/Houston Airport?

The distance between the two airports is roughly 7996 miles or 12868 kilometers.

How long does it take to fly from IAH to CSX?

The real-world flight time for a nonstop IAH to CSX flight is about 15 hour 22 minutes.

How many flights go between Houston, TX and Changsha?

It depends on the day of the week and the date, but a typical day might have around 22 available flights from IAH to CSX.


Airport Location Info


Departing Airport

Origination code IAH
Origination airport name George Bush Intercontinental/Houston Airport
City Houston, TX
Country the United States
Latitude 30
Longitude -95.3

Return Airport

Destination code CSX
Destination airport name Huanghua Airport
City Changsha
Country China
Latitude 28.2
Longitude 113.2


Other Resources

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.