Route guide

Cartagena to Houston (CTG-IAH): Nonstop Upgrade & Award Space

United Airlines flies the CTG to IAH nonstop about 4 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 CTG to IAH 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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4
Nonstop flights a week
1,857 mi
Nonstop distance
Free
To get started

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

Airlines flying Cartagena to Houston nonstop

Carriers operating CTG to IAH 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 CTG to IAH

How far is Houston from Cartagena?
CTG to IAH covers about 1,857 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CTG to IAH?
United Airlines is currently the only airline flying CTG to IAH nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from CTG to IAH?
About 4 nonstop flights a week run between Cartagena and Houston 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 CTG to IAH?
Open the CTG to IAH calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Cartagena to Houston route, and 2LNR will notify you when space opens. It's free to start.

Never miss CTG to IAH upgrade or award space

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

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