KLM flights from Seattle-Tacoma (SEA) to Denver (DEN).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 19:40 Seattle-Tacoma (SEA) 23:25 Denver (DEN)
KLM KL 6939 Non-stop Airbus A220-300 (223) 2:45 Effective 2026-01-10 through 2026-01-17
Codeshare flight, operated by Delta Air Lines.(DL 2851)
Sat 19:45 Seattle-Tacoma (SEA) 23:30 Denver (DEN)
KLM KL 6939 Non-stop Airbus A220-300 (223) 2:45 Operates only on 2026-03-14
Codeshare flight, operated by Delta Air Lines.(DL 2851)
Sat 19:45 Seattle-Tacoma (SEA) 23:31 Denver (DEN)
KLM KL 6939 Non-stop Airbus A220-300 (223) 2:46 Effective 2026-03-21 through 2026-03-28
Codeshare flight, operated by Delta Air Lines.(DL 2851)
Mon,Tue,Fri-Sun 13:35 Seattle-Tacoma (SEA) 17:14 Denver (DEN)
KLM KL 6971 Non-stop Airbus A220-100 (221) 2:39 Valid until 2026-01-04
Codeshare flight, operated by Delta Air Lines.(DL 2759)
Daily 13:40 Seattle-Tacoma (SEA) 17:27 Denver (DEN)
KLM KL 6971 Non-stop Embraer EMB 175 (E7W) 2:47 Effective 2026-02-12 through 2026-03-07
Codeshare flight, operated by Delta Air Lines.(DL 4026)
Daily 13:45 Seattle-Tacoma (SEA) 17:34 Denver (DEN)
KLM KL 6971 Non-stop Embraer EMB 175 (E7W) 2:49 Effective 2026-01-05 through 2026-02-11
Codeshare flight, operated by Delta Air Lines.(DL 4026)
Daily 13:35 Seattle-Tacoma (SEA) 17:29 Denver (DEN)
KLM KL 7354 Non-stop Embraer EMB 175 (E7W) 2:54 Effective 2026-03-29 through 2026-04-12
Codeshare flight, operated by Delta Air Lines.(DL 4026)
Daily 13:50 Seattle-Tacoma (SEA) 17:40 Denver (DEN)
KLM KL 7354 Non-stop Embraer EMB 175 (E7W) 2:50 Effective 2026-04-13 through 2026-05-06
Codeshare flight, operated by Delta Air Lines.(DL 4026)
Daily 13:50 Seattle-Tacoma (SEA) 17:38 Denver (DEN)
KLM KL 7354 Non-stop Airbus A220-100 (221) 2:48 Effective 2026-05-07 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 2759)
Daily 13:50 Seattle-Tacoma (SEA) 17:35 Denver (DEN)
KLM KL 7354 Non-stop Airbus A220-100 (221) 2:45 Effective 2026-10-06 through 2026-10-24
Codeshare flight, operated by Delta Air Lines.(DL 2759)
Sat 19:45 Seattle-Tacoma (SEA) 23:31 Denver (DEN)
KLM KL 7713 Non-stop Airbus A220-300 (223) 2:46 Effective 2026-04-04 through 2026-04-11
Codeshare flight, operated by Delta Air Lines.(DL 2851)


KLM flights from Seattle-Tacoma (SEA) to Denver (DEN).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2851)
Duration: 2:45, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Operates only on 2026-03-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2851)
Duration: 2:45, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Effective 2026-03-21 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2851)
Duration: 2:46, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2759)
Duration: 2:39, non-stop
Airbus A220-100 (221)

Direct Codeshare Flights:

Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4026)
Duration: 2:47, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Effective 2026-01-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4026)
Duration: 2:49, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Effective 2026-03-29 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4026)
Duration: 2:54, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4026)
Duration: 2:50, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Effective 2026-05-07 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2759)
Duration: 2:48, non-stop
Airbus A220-100 (221)

Direct Codeshare Flights:

Effective 2026-10-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2759)
Duration: 2:45, non-stop
Airbus A220-100 (221)

Direct Codeshare Flights:

Effective 2026-04-04 through 2026-04-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2851)
Duration: 2:46, non-stop
Airbus A220-300 (223)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Denver airport (DEN).
  • The flight distance is 1022 miles, or 1644 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-7 . 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 2:39 and 2:54.