There are several airlines that operate frequent flights from Houston (IAH) to Phoenix (PHX) including

• United Airlines with 305 flights a week
• American Airlines with 95 flights a week
• with 9 flights a week
• Qantas Airways with 9 flights a week
• with 5 flights a week

The earliest flight leaves George Bush Intercontinental Airport at 05:45 and arrives at Sky Harbor Intl. Airport at 06:43. The last flight of the day departs Houston at 21:50 and arrives at Phoenix at 23:49.

The flight distance from Houston to Phoenix is about 1630 km, the shortest flight is 02 hours 35 minutes with United Airlines."

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