Home / Routes / KONT → KBFI321 scheduled

The route from Ontario International Airport (KONT) in Ontario to Boeing Field King County International Airport (KBFI) in Seattle. SkyMeter tracks roughly 321 scheduled flights on this route across 14 carriers. The most active operator is UPS (UPS). Average block time is 2h 19m. Departures average 27 minutes off schedule, with 60% running more than 15 minutes late. The most common aircraft on this route is the BOEING Boeing 767-300.

Scheduled
321
last 486 days
ADS-B observed
69
Airlines
14
Avg dep delay
27m
Late >15 min
60.1%
Cancel rate
0.00%

Recent observed flights

From ADS-B trace data

2026-09-04 08:57  →  2026-09-04 11:14  ·  2h 17m
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2026-09-03 09:11  →  2026-09-03 11:35  ·  2h 24m
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2026-09-02 08:53  →  2026-09-02 11:20  ·  2h 27m
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2026-09-01 09:25  →  2026-09-01 11:37  ·  2h 12m
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2026-08-28 09:10  →  2026-08-28 11:19  ·  2h 8m
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2026-08-27 09:30  →  2026-08-27 11:33  ·  2h 3m
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2026-08-25 09:27  →  2026-08-25 11:32  ·  2h 4m
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2026-08-21 09:05  →  2026-08-21 11:12  ·  2h 6m
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2026-08-20 09:19  →  2026-08-20 11:21  ·  2h 2m
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2026-08-19 09:09  →  2026-08-19 11:12  ·  2h 2m
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View KBFI → KONT