Home / Routes / KSFO → KBOS4,699 scheduled

The route from San Francisco International Airport (KSFO) in San Francisco to General Edward Lawrence Logan International Airport (KBOS) in Boston. SkyMeter tracks roughly 4,699 scheduled flights on this route across 11 carriers. The most active operator is UAL (UAL). Average block time is 5h 40m. Departures average 37 minutes off schedule, with 62% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 737 MAX 9.

Scheduled
4,699
last 396 days
ADS-B observed
265
Airlines
11
Avg dep delay
37m
Late >15 min
62.3%
Cancel rate
1.21%

Recent observed flights

From ADS-B trace data

2026-06-03 17:40  →  2026-06-03 23:02  ·  5h 21m
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2026-06-03 17:00  →  2026-06-03 22:48  ·  5h 48m
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2026-06-03 15:05  →  2026-06-03 20:36  ·  5h 31m
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2026-06-03 13:59  →  2026-06-03 19:35  ·  5h 36m
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2026-06-03 13:56  →  2026-06-03 19:21  ·  5h 24m
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2026-06-03 12:25  →  2026-06-03 18:43  ·  6h 17m
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2026-06-03 07:07  →  2026-06-03 12:29  ·  5h 21m
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2026-06-03 06:08  →  2026-06-03 11:35  ·  5h 26m
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2026-06-03 05:23  →  2026-06-03 11:01  ·  5h 37m
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2026-06-03 04:31  →  2026-06-03 10:03  ·  5h 32m
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Codeshare partnerships

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

sells UAL 1754
sells UAL 1754
sells JBU 1463
sells JBU 773
sells JBU 689
sells DAL 592
sells JBU 544
sells JBU 360
sells DAL 359
sells UAL 358
sells ASA 343
sells ASA 343
sells ASA 343
sells ASA 343
sells DAL 309
sells DAL 306
sells ASA 250
sells DAL 164
sells JBU 148
sells DAL 137

Looking for the return flight?

View KBOS → KSFO