Route guide

San Antonio to Security-Widefield (SAT-COS): Nonstop Upgrade & Award Space

Southwest Airlines flies nonstop from San Antonio (SAT) to Security-Widefield (COS) 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
732 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every SAT to COS 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 San Antonio to Security-Widefield 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 SAT to COS 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 SAT to COS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying San Antonio to Security-Widefield nonstop

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

  • Southwest Airlines
See SAT to COS on the interactive map →

Frequently asked questions about SAT to COS

How far is Security-Widefield from San Antonio?
SAT to COS covers about 732 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SAT to COS?
Southwest Airlines is currently the only airline flying SAT to COS nonstop. 2LNR tracks confirmed upgrade and award space on every Southwest Airlines departure.
How often does SAT to COS operate?
The nonstop currently runs three times a week, on Southwest Airlines. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on SAT to COS?
Open the SAT to COS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the San Antonio to Security-Widefield route, and 2LNR will notify you when space opens. It's free to start.

Never miss SAT to COS upgrade or award space

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

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