Skip to content
WanderNerd
Check a flight

Route Reliability

Seattle → Cleveland

SEA–CLE · 2,021 miles · Seattle–Tacoma International Airport to Cleveland Hopkins International Airport

80
Pretty Reliable
WanderNerd Reliability Score
76%
Arrive within 15 minutes
6 min
Average arrival delay
0.9%
Cancelled
458
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 76% of the time across 458 flights. No comparison to make.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 77% of the time, against 73% between 9 PM–12 AM.

Friday is doing you no favors.

SEA–CLE flights arrived on time 82% of the time on Thursdays and just 64% on Fridays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon74%(72 flights)
  • Tue80%(55 flights)
  • Wed80%(66 flights)
  • Thu82%(72 flights)
  • Fri64%(69 flights)
  • Sat68%(47 flights)
  • Sun81%(73 flights)
On-time by departure window
  • 9 AM–12 PM77%(335 flights)
  • 9 PM–12 AM73%(119 flights)
On-time trend by month
76%
May

Jun 72% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%60
July 202572%60
August 202561%57
September 202572%47
October 202571%31
November 202585%26
December 202576%29
January 202682%22
February 202695%20
March 202692%26
April 202690%30
May 202676%46

Keep nerding

Based on 458 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.