Route guide

Palm Springs to Windsor (PSP-STS): Nonstop Upgrade & Award Space

Alaska Airlines, Inc. flies the PSP to STS nonstop about 5 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 PSP to STS 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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5
Nonstop flights a week
476 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every PSP 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 Palm Springs 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 PSP 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 PSP to STS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Palm Springs to Windsor nonstop

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

  • Alaska Airlines, Inc.
See PSP to STS on the interactive map →

Frequently asked questions about PSP to STS

How far is Windsor from Palm Springs?
PSP to STS covers about 476 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from PSP to STS?
Alaska Airlines, Inc. is currently the only airline flying PSP to STS nonstop. 2LNR tracks confirmed upgrade and award space on every Alaska Airlines, Inc. departure.
How many flights a week are there from PSP to STS?
About 5 nonstop flights a week run between Palm Springs and Windsor in the current schedule, operated by Alaska Airlines, Inc.. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on PSP to STS?
Open the PSP to STS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Palm Springs to Windsor route, and 2LNR will notify you when space opens. It's free to start.

Never miss PSP to STS upgrade or award space

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

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