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Route Reliability

Seattle → Tucson

SEA–TUS · 1,215 miles · Seattle–Tacoma International Airport to Tucson International Airport

89
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
1,065
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 Lines90%365 flights
  2. 2.Alaska Airlines78%700 flights

What the data says

Morning flights do better here.

SEA–TUS flights departing between 6–9 AM arrived on time 93% of the time, versus 75% between 3–6 PM.

Sunday scaries are real for this one.

SEA–TUS flights arrived on time 87% of the time on Wednesdays. On Sundays: 76%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 90% of the time on this route; Alaska Airlines managed 78%.

Trending in the right direction.

SEA–TUS flights arrived on time 88% of the time over the last three months in the data, compared with 76% 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
  • Mon83%(155 flights)
  • Tue82%(149 flights)
  • Wed87%(150 flights)
  • Thu84%(154 flights)
  • Fri82%(154 flights)
  • Sat86%(139 flights)
  • Sun76%(159 flights)
On-time by departure window
  • 6–9 AM93%(242 flights)
  • 9 AM–12 PM82%(478 flights)
  • 12–3 PM—(7 flights)
  • 3–6 PM75%(32 flights)
  • 6–9 PM76%(301 flights)
On-time trend by month
88%
May

Jun 82% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%90
July 202581%93
August 202588%93
September 202589%90
October 202587%82
November 202571%89
December 202571%85
January 202674%89
February 202683%80
March 202681%87
April 202696%90
May 202688%92

Keep nerding

Based on 1,065 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.