OnTimeRoutes
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American Airlines SEA to ORD on-time performance

American Airlines nonstop flights from Seattle to Chicago · Aug 2025 – Jul 2026

On-time arrivals
73%
arrived < 15 min late
Cancelled
1.9%
25 flights
Avg arrival delay
28 min
101 min when late
Rank on route
#3 of 4
route average 76% on time

Key facts

  • American Airlines flights on SEA to ORD arrived on time 73% of the time in Aug 2025 – Jul 2026.
  • 1.9% were cancelled, and 11% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 76% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (42%).

On-time trend by month

40%70%100%July 2025: 61.4% on time, 2.9% cancelledJul ’25August 2025: 52.1% on time, 3.3% cancelledAug ’25September 2025: 75.2% on time, 0.0% cancelledSep ’25October 2025: 85.1% on time, 0.0% cancelledOct ’25November 2025: 79.2% on time, 5.1% cancelledNov ’25December 2025: 68.8% on time, 2.5% cancelledDec ’25January 2026: 62.3% on time, 3.6% cancelledJan ’26February 2026: 86.8% on time, 0.0% cancelledFeb ’26March 2026: 76.2% on time, 4.5% cancelledMar ’26April 2026: 72.4% on time, 1.5% cancelledApr ’26May 2026: 75.5% on time, 0.0% cancelledMay ’26June 2026: 68.3% on time, 2.7% cancelledJun ’26July 2026: 78.2% on time, 1.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft42%
  • Airline (crew, maintenance, cleaning, fueling)40%
  • Air traffic control & airport congestion16%
  • Extreme weather3%
  • Security0%

Other airlines on SEA to ORD

Full SEA to ORD comparison →
American Airlines on-time record across all routes →

1,350 American Airlines flights tracked on this route; 25 cancelled, 15 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.