Home / Routes / KBOS → KSEA3,152 scheduled
BOS SEA6h 7m

The route from General Edward Lawrence Logan International Airport (KBOS) in Boston to Seattle Tacoma International Airport (KSEA) in Seattle. SkyMeter tracks roughly 3,152 scheduled flights on this route across 14 carriers. The most active operator is ASA (ASA). Average block time is 5h 41m. Departures average 37 minutes off schedule, with 68% running more than 15 minutes late. The most common aircraft on this route is the AIRBUS Airbus A321 Neo.

Scheduled
3,152
last 494 days
ADS-B observed
755
Airlines
14
Avg dep delay
37m
Late >15 min
67.8%
Cancel rate
1.02%

Airlines on this route

4 carriers · scheduled

Alaska Airlines
ASA · AS · 1,518 flights · avg 37m delay · 71.1% late
15 cancelled
Delta Air Lines
DAL · DL · 1,235 flights · avg 36m delay · 67.4% late
17 cancelled
Jetblue Airwaysoration
JBU · B6 · 398 flights · avg 38m delay · 56.3% late
Netjets Aviation
EJA · 1I · 1 flights · avg —m delay · 0.0% late

Recent observed flights

From ADS-B trace data

ASA306N712ALB39M
2026-09-06 00:36  →  2026-09-06 06:20  ·  5h 44m
Replay
DAL384N605DNA21N
2026-09-05 14:33  →  2026-09-05 20:15  ·  5h 41m
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ASA215N556ASB738
2026-09-05 14:02  →  2026-09-05 19:50  ·  5h 47m
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JBU397N607JBA320
2026-09-05 13:00  →  2026-09-05 18:45  ·  5h 44m
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JBU197N804JBA320
2026-09-05 00:01  →  2026-09-05 05:48  ·  5h 47m
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DAL332N598DNA21N
2026-09-04 15:41  →  2026-09-04 21:32  ·  5h 50m
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ASA215N955AKB39M
2026-09-04 14:09  →  2026-09-04 20:16  ·  6h 7m
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DAL384N506DAA21N
2026-09-04 11:36  →  2026-09-04 18:14  ·  6h 38m
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ASA459N469ASB739
2026-09-04 11:11  →  2026-09-04 17:48  ·  6h 37m
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JBU397N994JLA321
2026-09-04 11:09  →  2026-09-04 17:45  ·  6h 36m
Replay

Codeshare partnerships

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

sells ASA 1168
sells ASA 1025
sells DAL 936
sells ASA 801
sells ASA 693
sells ASA 675
sells DAL 657
sells ASA 358
sells ASA 357
sells DAL 356
sells DAL 288
sells JBU 261
sells JBU 239
sells DAL 214
sells DAL 115
sells JBU 83
sells JBU 83
sells ASA 69
sells JBU 55
sells DAL 5

Typical aircraft

Observed via ADS-B on this route

AIRBUS Airbus A321 Neo
A21N
37%
of flights
BOEING Boeing 737-900
B739
19%
of flights
BOEING Boeing 737 MAX 9
B39M
18%
of flights
AIRBUS Airbus A321
A321
10%
of flights
AIRBUS Airbus A320
A320
9%
of flights
BOEING Boeing 737-800
B738
3%
of flights
BOEING Boeing 737 MAX 8
B38M
1%
of flights
BOEING Boeing 757-200
B752
0%
of flights

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