OnTimeRoutes
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JetBlue JFK to SEA on-time performance

JetBlue nonstop flights from New York to Seattle · Aug 2025 – Jul 2026

On-time arrivals
70%
arrived < 15 min late
Cancelled
4.2%
7 flights
Avg arrival delay
23 min
75 min when late
Rank on route
#2 of 3
route average 70% on time

Key facts

  • JetBlue flights on JFK to SEA arrived on time 70% of the time in Aug 2025 – Jul 2026.
  • 4.2% were cancelled, and 14% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 70% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (32%).

On-time trend by month

10%55%100%July 2025: 38.7% on time, 0.0% cancelledJul ’25August 2025: 67.7% on time, 0.0% cancelledAug ’25September 2025: 82.8% on time, 3.3% cancelledSep ’25October 2025: 88.0% on time, 0.0% cancelledOct ’25May 2026: 88.9% on time, 5.3% cancelledMay ’26June 2026: 73.3% on time, 0.0% cancelledJun ’26July 2026: 26.9% on time, 16.1% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion32%
  • Airline (crew, maintenance, cleaning, fueling)28%
  • Late-arriving aircraft25%
  • Extreme weather12%
  • Security2%

Other airlines on JFK to SEA

166 JetBlue flights tracked on this route; 7 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.