Home / Routes / KSEA → KORD8,899 scheduled
SEA ORD3h 54m

The route from Seattle Tacoma International Airport (KSEA) in Seattle to Chicago O'Hare International Airport (KORD) in Chicago. SkyMeter tracks roughly 8,899 scheduled flights on this route across 15 carriers. The most active operator is ASA (ASA). Average block time is 3h 13m. Departures average 34 minutes off schedule, with 47% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737-900.

Scheduled
8,899
last 543 days
ADS-B observed
1,230
Airlines
15
Avg dep delay
34m
Late >15 min
47.0%
Cancel rate
0.76%

Airlines on this route

12 carriers · scheduled

Alaska Airlines
ASA · AS · 2,641 flights · avg 34m delay · 59.1% late
14 cancelled
United Airlines
UAL · UA · 2,363 flights · avg 29m delay · 39.5% late
22 cancelled
American Airlines
AAL · AA · 2,078 flights · avg 40m delay · 44.1% late
25 cancelled
Delta Air Lines
DAL · DL · 1,373 flights · avg 32m delay · 44.7% late
6 cancelled
China Cargo Airlines Ltd
CKK · CK · 434 flights · avg 51m delay · 35.7% late
Frontier Airlines
FFT · F9 · 2 flights · avg -3m delay · 0.0% late
Silk Way West Airlines
AZG · 7L · 2 flights · avg 60m delay · 100.0% late
Jag
JAG · AS · 2 flights · avg 52m delay · 100.0% late
Aer Lingus Teoranta
EIN · EI · 1 flights · avg —m delay · 0.0% late
1 cancelled
Cathay Pacific Airways Ltd
CPA · CX · 1 flights · avg 123m delay · 100.0% late
· UAL · 1 flights · avg —m delay · 0.0% late
Cargolux Airlines International S.a
CLX · CV · 1 flights · avg 130m delay · 100.0% late

Recent observed flights

From ADS-B trace data

ASA579N523ASB738
2026-10-26 18:54  →  2026-10-26 23:09  ·  4h 14m
Replay
CKK625B-2076B77L
2026-10-26 18:50  →  2026-10-26 22:32  ·  3h 41m
Replay
CKK227B-222ZB77L
2026-10-26 15:08  →  2026-10-26 18:54  ·  3h 45m
Replay
CKK225B-2077B77L
2026-10-26 09:34  →  2026-10-26 13:19  ·  3h 44m
Replay
AAL2672N162AAA321
2026-10-26 01:34  →  2026-10-26 05:24  ·  3h 50m
Replay
AAL1476N902AAA321
2026-10-26 00:34  →  2026-10-26 04:28  ·  3h 54m
Replay
DAL2108N335DUBCS3
2026-10-26 00:00  →  2026-10-26 04:26  ·  4h 25m
Replay
ASA579N287AKB739
2026-10-25 18:58  →  2026-10-25 23:10  ·  4h 12m
Replay
UAL747N14237B738
2026-10-25 17:44  →  2026-10-25 21:41  ·  3h 56m
Replay
ASA429N952AKB39M
2026-10-25 17:26  →  2026-10-25 21:39  ·  4h 12m
Replay

Codeshare partnerships

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

sells ASA 1767
sells ASA 1463
sells ASA 1028
sells AAL 953
sells AAL 928
sells AAL 748
sells UAL 695
sells AAL 687
sells AAL 680
sells DAL 510
sells ASA 486
sells AAL 476
sells DAL 421
sells UAL 377
sells UAL 357
sells ASA 357
sells UAL 357
sells UAL 357
sells UAL 342
sells AAL 323

Typical aircraft

Observed via ADS-B on this route

BOEING Boeing 737-900
B739
25%
of flights
BOEING Boeing 737-800
B738
20%
of flights
AIRBUS Airbus A321
A321
18%
of flights
BOEING Boeing 737 MAX 9
B39M
17%
of flights
AIRBUS Airbus A321 Neo
A21N
8%
of flights
BOEING Boeing 737 MAX 8
B38M
5%
of flights
BOEING Boeing 777-200LRF/LR
B77L
1%
of flights
AIRBUS-BOMBARDIER Airbus A220-300
BCS3
1%
of flights

Looking for the return flight?

View KORD → KSEA