# Who flies Houston (any) → Tucson nonstop?

**2 airlines fly Houston (any) → Tucson nonstop: Southwest Airlines (HOU seasonal) and United Airlines (IAH).**

| Airline | Routes | Book direct |
|---|---|---|
| Southwest Airlines | William P. Hobby (HOU) → Tucson (TUS) (Seasonal) | https://www.southwest.com/ |
| United Airlines | George Bush Intercontinental (IAH) → Tucson (TUS) | https://www.united.com |

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Compare fares for IAH-TUS: [Trip.com](https://www.trip.com/flights/houston-to-tucson/tickets-IAH-TUS/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/IAH1711TUS1?marker=713359). Affiliate links (Trip.com, Aviasales): picktheflight may earn a commission. It never changes the price or which airlines are listed.

On picktheflight: https://picktheflight.com/?from=HOU&fm=1&to=TUS · JSON: https://picktheflight.com/intents/HOU/TUS?fm=1

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Data built 2026-10-26 from airline schedule tables on Wikipedia ("Airlines and destinations"), matched by exact airport article; airline booking sites from Wikidata. Schedules change. Confirm the flight on the airline's own site before booking.