Route Reliability
Seattle → Milwaukee
SEA–MKE · 1,694 miles · Seattle–Tacoma International Airport to Milwaukee Mitchell International Airport
- 85%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0.2%
- 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 85% of the time across 510 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SEA–MKE flights departing between 6–9 AM arrived on time 93% of the time, versus 77% between 6–9 PM.
Sunday scaries are real for this one.
SEA–MKE flights arrived on time 89% of the time on Tuesdays. On Sundays: 80%.
It basically never cancels.
Out of 510 scheduled flights, only 0.2% were cancelled.
Trending in the right direction.
SEA–MKE flights arrived on time 92% of the time over the last three months in the data, compared with 82% 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
- Mon82%(78 flights)
- Tue89%(64 flights)
- Wed88%(68 flights)
- Thu87%(77 flights)
- Fri88%(76 flights)
- Sat83%(64 flights)
- Sun80%(80 flights)
- 6–9 AM93%(234 flights)
- 9 AM–12 PM83%(104 flights)
- 3–6 PM—(3 flights)
- 6–9 PM77%(166 flights)
Jun 85% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 85% | 59 |
| July 2025 | 80% | 61 |
| August 2025 | 82% | 61 |
| September 2025 | 85% | 60 |
| October 2025 | 100% | 33 |
| November 2025 | 79% | 33 |
| December 2025 | 79% | 42 |
| January 2026 | 79% | 24 |
| February 2026 | 89% | 18 |
| March 2026 | 92% | 25 |
| April 2026 | 97% | 36 |
| May 2026 | 86% | 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.