Home / Routes / KDEN → KSEA8,231 scheduled
DEN SEA2h 44m

The route from Denver International Airport (KDEN) in Denver to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 8,231 scheduled flights on this route across 26 carriers. The most active operator is UAL (UAL). Average block time is 2h 45m. Departures average 36 minutes off schedule, with 60% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737 MAX 8.

Scheduled
8,231
last 487 days
ADS-B observed
1,817
Airlines
26
Avg dep delay
36m
Late >15 min
59.9%
Cancel rate
0.62%

Airlines on this route

17 carriers · scheduled

United Airlines
UAL · UA · 2,331 flights · avg 31m delay · 57.8% late
13 cancelled
Alaska Airlines
ASA · AS · 1,919 flights · avg 37m delay · 58.7% late
15 cancelled
Southwest Airlines Co
SWA · WN · 1,694 flights · avg 40m delay · 74.8% late
9 cancelled
Delta Air Lines
DAL · DL · 1,287 flights · avg 38m delay · 48.2% late
9 cancelled
Frontier Airlines
FFT · F9 · 552 flights · avg 35m delay · 50.2% late
4 cancelled
Air Transport International
ATN · 8C · 415 flights · avg 41m delay · 69.2% late
Concesionaria Vuela Compania De Aviacion S.a. De C.v
VOI · Y4 · 18 flights · avg 10m delay · 0.0% late
Mn Airlines D/B/A Sun Country Airlines
SCX · SY · 4 flights · avg 31m delay · 100.0% late
Sky West Aviation
SKW · OO · 2 flights · avg 142m delay · 100.0% late
American Airlines
AAL · AA · 2 flights · avg 145m delay · 100.0% late
Airwork Holdings Limited
AWK · 1 flights · avg —m delay · 0.0% late
Dhl Air Limited
DHK · D0 · 1 flights · avg 52m delay · 100.0% late
· F2 · 1 flights · avg 0m delay · 0.0% late
Jag
JAG · AS · 1 flights · avg —m delay · 0.0% late
1 cancelled
Royal Air Freight
RAX · RAX · 1 flights · avg 10m delay · 0.0% late

Recent observed flights

From ADS-B trace data

DAL1358N302DUBCS3
2026-09-02 21:24  →  2026-09-02 23:55  ·  2h 31m
Replay
ASA535N464ASB739
2026-09-02 20:58  →  2026-09-02 23:37  ·  2h 38m
Replay
UAL464N68891B739
2026-09-02 20:03  →  2026-09-02 22:46  ·  2h 42m
Replay
ASA682N270AKB739
2026-09-02 18:11  →  2026-09-02 20:43  ·  2h 31m
Replay
SWA888N8544ZB738
2026-09-02 17:43  →  2026-09-02 20:29  ·  2h 45m
Replay
UAL2058N54561ST75
2026-09-02 17:24  →  2026-09-02 20:05  ·  2h 41m
Replay
UAL2757N47332B38M
2026-09-02 15:49  →  2026-09-02 18:26  ·  2h 36m
Replay
SWA4462N1810UB38M
2026-09-02 15:10  →  2026-09-02 18:07  ·  2h 56m
Replay
ASA317N548ASB738
2026-09-02 14:21  →  2026-09-02 16:54  ·  2h 33m
Replay
UAL2271N77537B738
2026-09-02 13:58  →  2026-09-02 16:39  ·  2h 41m
Replay

Codeshare partnerships

Marketing carriers selling tickets on this route under their own flight numbers

sells ASA 1521
sells ASA 1341
sells ASA 890
sells ASA 889
sells DAL 725
sells ASA 704
sells DAL 487
sells DAL 478
sells ASA 454
sells ASA 435
sells DAL 414
sells FFT 403
sells UAL 358
sells ASA 358
sells UAL 274
sells DAL 241
sells DAL 131
sells ASA 92
sells ASA 77
sells UAL 63

Typical aircraft

Observed via ADS-B on this route

BOEING Boeing 737 MAX 8
B38M
20%
of flights
BOEING Boeing 737-900
B739
14%
of flights
BOEING Boeing 737-800
B738
13%
of flights
AIRBUS Airbus A321 Neo
A21N
12%
of flights
AIRBUS-BOMBARDIER Airbus A220-300
BCS3
12%
of flights
BOEING Boeing 737 MAX 9
B39M
12%
of flights
AIRBUS Airbus A320
A320
6%
of flights
BOEING Boeing 767-300
B763
4%
of flights

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View KSEA → KDEN