Route guide

Houston to Tucson (IAH-TUS): Nonstop Upgrade & Award Space

United Airlines flies nonstop between Houston (IAH) and Tucson (TUS), roughly 17 times a week. With United Airlines operating this route so often, premium seats still turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every IAH to TUS departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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17
Nonstop flights a week
934 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every IAH to TUS departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Houston to Tucson to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each IAH to TUS departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See IAH to TUS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to Tucson nonstop

Carriers operating IAH to TUS nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • United Airlines
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Frequently asked questions about IAH to TUS

How far is Tucson from Houston?
IAH to TUS covers about 934 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from IAH to TUS?
United Airlines is currently the only airline flying IAH to TUS nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from IAH to TUS?
About 17 nonstop flights a week run between Houston and Tucson in the current schedule, operated by United Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on IAH to TUS?
Open the IAH to TUS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Houston to Tucson route, and 2LNR will notify you when space opens. It's free to start.

Never miss IAH to TUS upgrade or award space

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