Skip to content
WanderNerd
Check a flight

Route Reliability

Milwaukee → Seattle

MKE–SEA · 1,694 miles · Milwaukee Mitchell International Airport to Seattle–Tacoma International Airport

86
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
2 min
Average arrival delay
0.6%
Cancelled
510
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 81% of the time across 510 flights. No comparison to make.

What the data says

Morning-you made the right choice.

MKE–SEA flights departing between 6–9 AM arrived on time 88% of the time, versus 75% between 12–3 PM.

Friday is doing you no favors.

MKE–SEA flights arrived on time 88% of the time on Saturdays. On Fridays: 75%.

Trending in the right direction.

MKE–SEA flights arrived on time 86% of the time over the last three months in the data, compared with 67% 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
  • Mon82%(77 flights)
  • Tue76%(66 flights)
  • Wed80%(65 flights)
  • Thu83%(75 flights)
  • Fri75%(79 flights)
  • Sat88%(64 flights)
  • Sun85%(80 flights)
On-time by departure window
  • 6–9 AM88%(182 flights)
  • 12–3 PM75%(101 flights)
  • 3–6 PM78%(223 flights)
On-time trend by month
89%
May

Jun 85% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%59
July 202580%61
August 202586%62
September 202586%59
October 202579%34
November 202576%33
December 202563%40
January 202660%25
February 202678%18
March 202668%25
April 2026100%35
May 202689%55

Keep nerding

Based on 510 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.