Route guide

Cancun to San Antonio (CUN-SAT): Nonstop Upgrade & Award Space

Sun Country Airlines and Southwest Airlines fly the CUN to SAT nonstop about 6 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 CUN to SAT 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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6
Nonstop flights a week
931 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every CUN to SAT 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 Cancun to San Antonio 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 CUN to SAT 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 CUN to SAT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Cancun to San Antonio nonstop

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

  • Sun Country Airlines
  • Southwest Airlines
See CUN to SAT on the interactive map →

Frequently asked questions about CUN to SAT

How far is San Antonio from Cancun?
CUN to SAT covers about 931 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CUN to SAT?
Sun Country Airlines and Southwest Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from CUN to SAT?
About 6 nonstop flights a week run between Cancun and San Antonio in the current schedule, operated by Sun Country Airlines and Southwest Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on CUN to SAT?
Open the CUN to SAT calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Cancun to San Antonio route, and 2LNR will notify you when space opens. It's free to start.

Never miss CUN to SAT upgrade or award space

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

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