Home / Routes / KPHL → KSEA1,518 scheduled

The route from Philadelphia International Airport (KPHL) in Philadelphia to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 1,518 scheduled flights on this route across 8 carriers. The most active operator is ASA (ASA). Average block time is 5h 21m. Departures average 32 minutes off schedule, with 61% running more than 15 minutes late. The most common aircraft on this route is the AIRBUS Airbus A321.

Scheduled
1,518
last 480 days
ADS-B observed
442
Airlines
8
Avg dep delay
32m
Late >15 min
61.3%
Cancel rate
1.12%

Recent observed flights

From ADS-B trace data

2026-08-27 11:51  →  2026-08-27 17:16  ·  5h 24m
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2026-08-26 00:33  →  2026-08-26 05:58  ·  5h 25m
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2026-08-26 00:01  →  2026-08-26 06:19  ·  6h 18m
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2026-08-25 12:56  →  2026-08-25 18:25  ·  5h 29m
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2026-08-25 11:11  →  2026-08-25 16:33  ·  5h 22m
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2026-08-25 11:06  →  2026-08-25 16:37  ·  5h 30m
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2026-08-23 12:56  →  2026-08-23 18:17  ·  5h 20m
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2026-08-23 11:21  →  2026-08-23 16:37  ·  5h 16m
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2026-08-23 11:09  →  2026-08-23 16:35  ·  5h 25m
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2026-08-23 01:07  →  2026-08-23 07:07  ·  5h 59m
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Codeshare partnerships

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

sells ASA 639
sells ASA 554
sells AAL 350
sells AAL 317
sells ASA 115
sells ASA 69

Looking for the return flight?

View KSEA → KPHL