Home / Routes / KMSY → KSEA651 scheduled

The route from Louis Armstrong New Orleans International Airport (KMSY) in New Orleans to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 651 scheduled flights on this route across 4 carriers. The most active operator is ASA (ASA). Average block time is 5h 5m. Departures average 29 minutes off schedule, with 59% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737 MAX 9.

Scheduled
651
last 445 days
ADS-B observed
159
Airlines
4
Avg dep delay
29m
Late >15 min
59.1%
Cancel rate
0.46%

Recent observed flights

From ADS-B trace data

2026-07-19 14:57  →  2026-07-19 19:19  ·  4h 22m
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2026-07-18 23:29  →  2026-07-19 03:50  ·  4h 21m
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2026-07-18 13:39  →  2026-07-18 18:08  ·  4h 29m
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2026-07-17 23:16  →  2026-07-18 03:46  ·  4h 29m
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2026-07-17 13:32  →  2026-07-17 17:56  ·  4h 24m
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2026-07-17 00:05  →  2026-07-17 04:44  ·  4h 39m
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2026-07-16 12:17  →  2026-07-16 16:53  ·  4h 35m
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2026-07-15 22:39  →  2026-07-16 03:01  ·  4h 22m
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2026-07-15 12:39  →  2026-07-15 16:54  ·  4h 14m
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2026-07-14 22:33  →  2026-07-15 02:55  ·  4h 21m
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Codeshare partnerships

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

sells ASA 604
sells ASA 518
sells ASA 294
sells ASA 68

Looking for the return flight?

View KSEA → KMSY