SAS
flight
SK 3921:
Seattle-Tacoma - Chicago O'Hare
Seattle-Tacoma - Chicago O'Hare
FLIGHT SCHEDULE
Direct Codeshare Flights:
SAS SK3921
Valid until 2026-01-04
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:10, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-01-05 through 2026-01-16
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:12, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-01-19 through 2026-02-13
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:12, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-02-16 through 2026-03-06
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:12, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-04-13 through 2026-05-06
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:12, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-05-08 through 2026-05-16
Mon
Tue
-
-
Wed
Thu
-
-
Fri
Sat
Sun
-
-
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:10, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-05-17 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:10, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
SAS SK3921
Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:11, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
SAS SK3921
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines.
(DL 2055)
Duration: 4:10, non-stop Boeing 737-800 (738)
- SK 3921 is a domestic flight departing from the Seattle-Tacoma airport (SEA) and arriving at Chicago O'Hare airport (ORD).
- The flight distance is 1715 miles, or 2760 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-6 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 4:10 and 4:12.