Flight history · Aug 2025 – Jul 2026 · US DOT on-time records

B6 198 · Seattle (SEA) → Boston (BOS)

Sold by JetBlue. Still flying: 49 of the last 56 days (Daily).

Arrives on time53%within 15 minutes, of 82 flights
Cancelled3.7%of scheduled flights
An hour or more late22%of flights that operated
When late, on average128 minlate, among flights 15+ min late

Schedule

Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Boston is 3 h ahead of Seattle).

Leaves SEA
23:44
Arrives BOS
08:00
Flight time
5h 18m
Days flown, last 8 weeks
49 of 56

Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.

How late it arrives

Share of flights that operated arriving more than this late.

15+ min late47%
30+ min late37%
1h+ late22%
2h+ late10%
20%40%60% 015301h1h302h3h

Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.

Its hour at SEA

All flights leaving Seattle (SEA) at 11 pm–12 am, wherever they’re going: 80% left within 15 minutes and 1.6% were cancelled (8,191 flights in the year). Other JetBlue flights on this route →

Upcoming forecasts

Our odds that this flight is late or cancelled on the days we publish.