Route guide

Houston to Santo Domingo (IAH-SDQ): Nonstop Upgrade & Award Space

United Airlines flies nonstop from Houston (IAH) to Santo Domingo (SDQ) just three times a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

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

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3
Nonstop flights a week
1,797 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every IAH to SDQ 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 Santo Domingo 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 SDQ 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 SDQ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to Santo Domingo nonstop

Carriers operating IAH to SDQ 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 SDQ

How far is Santo Domingo from Houston?
IAH to SDQ covers about 1,797 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 SDQ?
United Airlines is currently the only airline flying IAH to SDQ nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How often does IAH to SDQ operate?
The nonstop currently runs three times a week, on United Airlines. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on IAH to SDQ?
Open the IAH to SDQ calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Houston to Santo Domingo route, and 2LNR will notify you when space opens. It's free to start.

Never miss IAH to SDQ upgrade or award space

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

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