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WanderNerd

Route Reliability

Seattle → Minneapolis

SEAMSP · 1,399 miles · Seattle–Tacoma International Airport to Minneapolis–Saint Paul International Airport

89
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
1 min early
Average arrival delay
1.0%
Cancelled
2,707
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines89%1,735 flights
  2. 2.Alaska Airlines81%972 flights

What the data says

Morning flights do better here.

SEA–MSP flights departing between 12–3 AM arrived on time 100% of the time, versus 78% between 6–9 PM.

Wednesday comes out ahead.

A small edge: 90% on time on Wednesdays against 84% on Sundays.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 89% of the time on this route; Alaska Airlines managed 81%.

Ticking up lately.

SEA–MSP flights arrived on time 91% of the time over the last three months in the data, compared with 87% 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
  • Mon86%(402 flights)
  • Tue87%(371 flights)
  • Wed90%(371 flights)
  • Thu86%(400 flights)
  • Fri85%(394 flights)
  • Sat85%(336 flights)
  • Sun84%(402 flights)
On-time by departure window
  • 12–3 AM100%(16 flights)
  • 6–9 AM91%(844 flights)
  • 9 AM–12 PM87%(465 flights)
  • 12–3 PM81%(462 flights)
  • 3–6 PM86%(172 flights)
  • 6–9 PM78%(463 flights)
  • 9 PM–12 AM93%(254 flights)
On-time trend by month
92%
May

Jun 84% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%267
July 202578%293
August 202578%289
September 202587%263
October 202592%227
November 202589%200
December 202581%206
January 202690%166
February 202689%158
March 202690%188
April 202692%196
May 202692%223

Based on 2,707 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.