Guatemala City to Houston (GUA-IAH): Nonstop Upgrade & Award Space
United Airlines and Frontier Airlines fly nonstop between Guatemala City (GUA) and Houston (IAH), roughly 20 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every GUA to IAH 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.
Confirmed upgrade & award space on every GUA to IAH 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 Guatemala City to Houston 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 GUA to IAH 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 GUA to IAH on the interactive route map, with schedules, connections, and route statistics.
Airlines flying Guatemala City to Houston nonstop
Carriers operating GUA to IAH nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.
- United Airlines
- Frontier Airlines
Frequently asked questions about GUA to IAH
How far is Houston from Guatemala City?
Which airlines fly nonstop from GUA to IAH?
How many flights a week are there from GUA to IAH?
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