United, American, Frontier and Southwest fly nonstop from Phoenix to Houston. The flight takes about 2h 40m.
| From | Phoenix Sky Harbor (PHX) |
|---|---|
| To | Bush Intercontinental (IAH) and Hobby (HOU) |
| Nonstop airlines | IAH: United (about 39 flights a week), American (about 15), Frontier (about 7) Hobby (HOU): Southwest (about 41 a week) |
| Flight time | About 2h 40m (1,006 miles to IAH) |
| Cheapest month | February (median about $212 round trip) |
| Most expensive | July and September |
| Typical round trip | IAH $189 to $354; Hobby $288 to $448 |
| Best time to book | About 5 weeks ahead |
| Google Flights typical price | About $153 round trip, for the dates we checked recently |
February has been the cheapest month to fly to Houston: the median round trip to Bush Intercontinental (IAH) was around $212, and to Hobby around $277. July and September cost the most to IAH, around $309 and $297. Hobby, where Southwest is the only nonstop airline, has run higher all year: $288 to $448 round trip, against $189 to $354 to IAH.
Booking about 5 weeks before departure has saved the most on this route, about 36% compared with booking in the last two weeks.
Those are typical prices. Our daily scan looks for fares well below them: when one shows up from PHX, it appears at the top of this page and goes out by email.
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IAH: United (about 39 flights a week), American (about 15), Frontier (about 7); Hobby (HOU): Southwest (about 41 a week). Schedules change, so check before booking.
About 2h 40m (1,006 miles to IAH).
February has been the cheapest month to fly to Houston: the median round trip to Bush Intercontinental (IAH) was around $212, and to Hobby around $277. July and September cost the most to IAH, around $309 and $297. Hobby, where Southwest is the only nonstop airline, has run higher all year: $288 to $448 round trip, against $189 to $354 to IAH.
Booking about 5 weeks before departure has saved the most on this route, about 36% compared with booking in the last two weeks.
Both have nonstops from PHX. Bush Intercontinental (IAH) has United, American and Frontier and has been cheaper, with round trips of about $189 to $354. Hobby (HOU) has Southwest only, is closer to downtown, and has run about $288 to $448.
Be flexible on dates, compare the nearby airports listed above, and watch for fare drops. Our free newsletter checks fares from PHX every morning and only sends fares at least 20% below the typical price for that route and dates.
Prices are round-trip medians over the past 12 months from KAYAK route data, checked October 2026. Nonstop airlines from Phoenix Sky Harbor and airline schedules as of October 2026. Fares and schedules change, so confirm before you book.
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