Home / Routes / KSEA → KMSY649 scheduled

The route from Seattle Tacoma International Airport (KSEA) in Seattle to Louis Armstrong New Orleans International Airport (KMSY) in New Orleans. SkyMeter tracks roughly 649 scheduled flights on this route across 4 carriers. The most active operator is ASA (ASA). Average block time is 4h 32m. Departures average 34 minutes off schedule, with 77% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737 MAX 9.

Scheduled
649
last 445 days
ADS-B observed
157
Airlines
4
Avg dep delay
34m
Late >15 min
76.6%
Cancel rate
0.46%

Recent observed flights

From ADS-B trace data

2026-07-19 16:40  →  2026-07-19 21:02  ·  4h 22m
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2026-07-19 09:05  →  2026-07-19 13:35  ·  4h 29m
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2026-07-18 17:03  →  2026-07-18 21:39  ·  4h 36m
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2026-07-18 07:59  →  2026-07-18 12:15  ·  4h 15m
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2026-07-17 17:02  →  2026-07-17 21:52  ·  4h 50m
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2026-07-16 18:00  →  2026-07-16 22:37  ·  4h 37m
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2026-07-15 16:44  →  2026-07-15 21:15  ·  4h 31m
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2026-07-15 06:32  →  2026-07-15 10:56  ·  4h 23m
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2026-07-14 16:33  →  2026-07-14 21:18  ·  4h 45m
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2026-07-14 06:23  →  2026-07-14 10:43  ·  4h 19m
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Codeshare partnerships

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

sells ASA 605
sells ASA 518
sells ASA 235

Looking for the return flight?

View KMSY → KSEA