BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
CLE→SEA

Cleveland, OH (CLE) to Seattle, WA (SEA) flight delay odds

61.6% of 456 official scheduled CLE-to-SEA flights arrived on time; 20.4% arrived at least 30 minutes late and 2.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
61.6%arrived on time
20.4%30+ min late
2.2%cancelled
456scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.2%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+15.2 mincompleted flights

Which departure time was most reliable for CLE to SEA?

Among qualifying CLE-to-SEA departure window results, Early morning had the highest on-time rate: 70.7% of 181 flights. Evening was lowest at 55.8% across 274 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning18170.7%13.8%1.7%
Evening27455.8%24.8%2.2%

Which weekday was most reliable for CLE to SEA?

Among qualifying CLE-to-SEA weekday results, Thursday had the highest on-time rate: 68.2% of 66 flights. Monday was lowest at 55.6% across 72 flights.

DayFlightsOn time30+ minCancelled
Monday7255.6%20.8%2.8%
Tuesday6566.2%15.4%1.5%
Wednesday6258.1%24.2%1.6%
Thursday6668.2%21.2%3.0%
Friday7266.7%22.2%1.4%
Saturday4759.6%19.1%2.1%
Sunday7256.9%19.4%2.8%

Which airline was most reliable for CLE to SEA?

Only Alaska Airlines met the CLE-to-SEA airline threshold: 61.6% of 456 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines45661.6%20.4%2.2%

Which month was most reliable for CLE to SEA?

Among qualifying CLE-to-SEA month results, September 2025 had the highest on-time rate: 85.4% of 48 flights. December 2025 was lowest at 20.7% across 29 flights.

MonthFlightsOn time30+ minCancelled
July 20256167.2%16.4%3.3%
August 20255761.4%15.8%1.8%
September 20254885.4%6.2%0.0%
October 20253369.7%15.2%6.1%
November 20252669.2%15.4%3.8%
December 20252920.7%58.6%0.0%
January 20262339.1%34.8%13.0%
February 20262050.0%30.0%0.0%
March 20262737.0%44.4%3.7%
April 20263080.0%10.0%0.0%
May 20264564.4%17.8%0.0%
June 20265761.4%14.0%0.0%

What drove CLE to SEA delay minutes?

National airspace was the largest recorded CLE-to-SEA delay category, accounting for 33.9% of 8,470 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.0%
Late aircraft30.0%
National airspace33.9%
Weather6.8%
Security1.2%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.