The cheapest times to fly from IAH to KIX are

  • January 15th to May 13th
  • September 10th to November 18th (except the week of October 8th)

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 KIX is mid to late September. Prices can be as high as $1904 for Saturday flights during mid December, or as low as $769 for Wednesday flights around mid to late September.


When to Fly to Osaka

Flying from Houston, TX (IAH) to Osaka (KIX) will usually cost between $834 to $1505 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $830. Due to high demand the most expensive time to fly is mid December, with an average price of $1703. Planning your trip to low-cost times can easily save you $873 on economy flights and even more on first-class flights. Generally, any price below $975 can be considered a good price for a round-trip IAH to KIX flight.

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

IAH to KIX Flight Prices

Compared to other flights, the IAH to KIX flight is priced close to the average and costs about as much as the average flight leaving from Houston. The average price per mile (for a direct flight) is $0.09, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to KIX, and Tuesday the cheapest day to fly back into IAH. 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 $108 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $998. Return trip prices are from the KIX 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 KIX 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 24 minutes may not be realistic.


Flight Hacking IAH to KIX

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 KIX — but Champion Traveler does!

Hack #1: Las Vegas, NV (IAH > LAS > KIX)

  • Price for both tickets: $943
  • Average savings: $32 (3.23%)

See IAH to LAS flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 23 major airlines flying this route most often: Air Canada, Air China, Air France, Alaska, American, ANA, Asiana, Cathay Pacific, China Airlines, China Southern, Delta, Emirates, EVA Air, Finnair, Hainan, JAL, KLM, Korean Air, Lufthansa, Shanghai Airlines, THAI, United, Xiamen, and potentially more during busy seasons.

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

The distance between the two airports is roughly 6898 miles or 11101 kilometers.

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

The real-world flight time for a nonstop IAH to KIX flight is about 13 hour 24 minutes.

How many flights go between Houston, TX and Osaka?

It depends on the day of the week and the date, but a typical day might have around 72 available flights from IAH to KIX.


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 KIX
Destination airport name Kansai International Airport
City Osaka
Country Japan
Latitude 34.4
Longitude 135.2


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.