The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Seattle-Tacoma International ⇄ Palm Springs International SEA–PSP

Airlines flew 3,361 flights between Seattle-Tacoma International SEA in Seattle, WA and Palm Springs International PSP in Palm Springs, CA in the twelve months to July 2026, both directions together: 371,798 passengers in 490,843 seats, 76% of them filled, and 226,794 pounds of freight. 987 miles, about 137 minutes in the air, on 5 airlines: Alaska Airlines Inc. (2,093), SkyWest Airlines Inc. (829), Delta Air Lines Inc. (350), Horizon Air (88) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

3,361
flights, twelve months
SEA-PSP: 1,684 · PSP-SEA: 1,677
371,798
passengers
76% of seats filled
987
miles
about 137 minutes airborne
5
airlines
6 aircraft types

Flights by month both directions

01082163244321/254/257/2510/251/264/261217/26
By month, as a table
flights
1/25367
2/25332
3/25398
4/25400
5/25255
6/25143
7/25122
8/25150
9/25181
10/25298
11/25348
12/25308
1/26356
2/26364
3/26424
4/26432
5/26241
6/26138
7/26121

Passengers by month

013,61127,22240,83254,4431/254/257/2510/251/264/2612,1667/26
By month, as a table
passengers
1/2539,216
2/2542,531
3/2551,593
4/2550,312
5/2529,367
6/2515,792
7/2513,147
8/2514,183
9/2516,702
10/2528,995
11/2534,445
12/2533,662
1/2638,134
2/2646,033
3/2654,443
4/2651,189
5/2627,013
6/2614,833
7/2612,166

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Alaska Airlines Inc. AS2,093279,88177%scheduled passenger service
SkyWest Airlines Inc. OO82948,24677%scheduled passenger service
Delta Air Lines Inc. DL35039,20670%scheduled passenger service
Horizon Air QX884,38966%scheduled passenger service
Envoy Air MQ176100%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-900ER976178131,254
Embraer ERJ-1759187652,711
Boeing B737 Max 90072117898,909
Boeing 737-80066416079,274
Boeing B737 Max 800701618,567
Boeing 737-700/700LR/Max 7121241,083

SEA → PSP this direction alone · flown January 2025 to July 2026

1,684 flights of 1,696 scheduled, 185,386 passengers in 246,338 seats, 31,491 pounds of freight. Alaska Airlines Inc. 1,051; SkyWest Airlines Inc. 414; Delta Air Lines Inc. 175; Horizon Air 43; Envoy Air 1.

PSP → SEA this direction alone · flown January 2025 to July 2026

1,677 flights of 1,698 scheduled, 186,412 passengers in 244,505 seats, 195,303 pounds of freight. Alaska Airlines Inc. 1,042; SkyWest Airlines Inc. 415; Delta Air Lines Inc. 175; Horizon Air 45.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Seattle-Tacoma International SEA and Palm Springs International PSP; all routes.