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Route Reliability

Cleveland → Seattle

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

60
A Little Dicey
WanderNerd Reliability Score
66%
Arrive within 15 minutes
16 min
Average arrival delay
2.4%
Cancelled
459
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 66% of the time across 459 flights. No comparison to make.

What the data says

Morning flights do better here.

CLE–SEA flights departing between 6–9 AM arrived on time 76% of the time, versus 59% between 6–9 PM.

Sunday scaries are real for this one.

CLE–SEA flights arrived on time 73% of the time on Thursdays. On Sundays: 60%.

Trending in the right direction.

CLE–SEA flights arrived on time 61% of the time over the last three months in the data, compared with 39% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon60%(70 flights)
  • Tue68%(63 flights)
  • Wed65%(60 flights)
  • Thu73%(64 flights)
  • Fri69%(71 flights)
  • Sat64%(47 flights)
  • Sun60%(72 flights)
On-time by departure window
  • 6–9 AM76%(177 flights)
  • 6–9 PM59%(270 flights)
On-time trend by month
64%
May

Jun 76% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%59
July 202571%58
August 202566%56
September 202585%48
October 202574%31
November 202572%25
December 202521%29
January 202645%20
February 202650%20
March 202639%26
April 202680%30
May 202664%45

Keep nerding

Based on 459 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.