No delays reported for B6 263 (JFK → SEA) as of 6:43 PM ET. It arrived on time 47.6% of the time in June-August 2026. When it was late, the average delay was 1h 45m. 8.7% of flights were cancelled. Right now there are no reported delays at JFK, SEA.
High cancellation risk
Should be in the air from JFK, scheduled to land at SEA at 9:08 PM local time. Line up a backup option.
8.7% 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.
Book a backup seat JFK → SEAThis flight is cancelled often; a refundable backup costs little
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| JFK → SEA New York, NY to Seattle, WA | 5:29 PM → 9:08 PM | 48% |
Local times. Schedules change; check your booking.
How reliable is B6 263?
| Arrived on time (within 15 min) | 47.6% |
| Average delay when late | 105 min |
| Cancelled | 8.7% |
| Diverted | 0% |
| Flights tracked | 92 |
Best and worst days to fly B6 263
B6 263 was most reliable on Mondays (62% on time) and least reliable on Sundays (31%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | |
| Sunday |
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 JFK → 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 263 delayed today?
Right now there are no reported delays at JFK, SEA. Checked 6:43 PM ET. For this flight's gate and exact status, check the JetBlue app.
Is B6 263 usually on time?
B6 263 arrived within 15 minutes of schedule 47.6% of the time in June-August 2026, with an average delay of 105 minutes when late.
How often is B6 263 cancelled?
8.7% of B6 263 flights were cancelled in June-August 2026.