No delays reported for B6 397 (BOS → SEA) as of 6:43 PM ET. It arrived on time 78.7% of the time in June-August 2026. When it was late, the average delay was 57 minutes. None were cancelled. Right now there are no reported delays at BOS, SEA.
Looks on time
Next leg BOS → SEA, scheduled 7:10 AM local time. No delays at BOS right now.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check JetBlue for official times. Live position: adsb.lol (open data, ODbL).
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| BOS → SEA Boston, MA to Seattle, WA | 7:10 AM → 10:33 AM | 79% |
Local times. Schedules change; check your booking.
How reliable is B6 397?
| Arrived on time (within 15 min) | 78.7% |
| Average delay when late | 57 min |
| Cancelled | 0% |
| Diverted | 3.3% |
| Flights tracked | 92 |
Best and worst days to fly B6 397
B6 397 was most reliable on Thursdays (100% on time) and least reliable on Saturdays (54%).
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by JetBlue to the Department of Transportation.
Other flights BOS → SEA
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the JetBlue app.
JetBlue delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is B6 397 delayed today?
Right now there are no reported delays at BOS, SEA. Checked 6:43 PM ET. For this flight's gate and exact status, check the JetBlue app.
Is B6 397 usually on time?
B6 397 arrived within 15 minutes of schedule 78.7% of the time in June-August 2026, with an average delay of 57 minutes when late.
How often is B6 397 cancelled?
0% of B6 397 flights were cancelled in June-August 2026.