Route guide

Houston to Charlotte Amalie (IAH-STT): Nonstop Upgrade & Award Space

United Airlines flies the IAH to STT nonstop about 7 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every IAH to STT departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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7
Nonstop flights a week
2,068 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every IAH to STT 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 Charlotte Amalie 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 STT 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 STT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to Charlotte Amalie nonstop

Carriers operating IAH to STT 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 STT

How far is Charlotte Amalie from Houston?
IAH to STT covers about 2,068 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 STT?
United Airlines is currently the only airline flying IAH to STT nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from IAH to STT?
About 7 nonstop flights a week run between Houston and Charlotte Amalie 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 STT?
Open the IAH to STT calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Houston to Charlotte Amalie route, and 2LNR will notify you when space opens. It's free to start.

Never miss IAH to STT upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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