Salt Lake City to Windsor (SLC-STS): Nonstop Upgrade & Award Space
Delta Air Lines and Alaska Airlines, Inc. fly nonstop between Salt Lake City (SLC) and Windsor (STS), roughly 15 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 SLC to STS 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 SLC to STS 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 Salt Lake City to Windsor 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 SLC to STS 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 SLC to STS on the interactive route map, with schedules, connections, and route statistics.
Airlines flying Salt Lake City to Windsor nonstop
Carriers operating SLC to STS nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.
- Delta Air Lines
- Alaska Airlines, Inc.
Frequently asked questions about SLC to STS
How far is Windsor from Salt Lake City?
Which airlines fly nonstop from SLC to STS?
How many flights a week are there from SLC to STS?
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