BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
TUS→SEA

Tucson, AZ (TUS) to Seattle, WA (SEA) flight delay odds

86.4% of 1,065 official scheduled TUS-to-SEA flights arrived on time; 6.7% arrived at least 30 minutes late and 0.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
86.4%arrived on time
6.7%30+ min late
0.7%cancelled
1,065scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.3%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-1.5 mincompleted flights

Which departure time was most reliable for TUS to SEA?

Among qualifying TUS-to-SEA departure window results, Early morning had the highest on-time rate: 89.9% of 358 flights. Afternoon was lowest at 84.4% across 646 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35889.9%4.5%0.8%
Late morning6186.9%3.3%0.0%
Afternoon64684.4%8.2%0.6%

Which weekday was most reliable for TUS to SEA?

Among qualifying TUS-to-SEA weekday results, Saturday had the highest on-time rate: 91.4% of 139 flights. Friday was lowest at 81.4% across 156 flights.

DayFlightsOn time30+ minCancelled
Monday15689.1%5.8%0.6%
Tuesday15385.0%9.8%0.0%
Wednesday15090.0%5.3%0.0%
Thursday15586.5%5.8%0.6%
Friday15681.4%10.3%1.9%
Saturday13991.4%2.9%1.4%
Sunday15682.1%6.4%0.0%

Which airline was most reliable for TUS to SEA?

Among qualifying TUS-to-SEA airline results, Delta Air Lines had the highest on-time rate: 87.7% of 138 flights. Alaska Airlines was lowest at 85.4% across 556 flights.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines55685.4%6.7%0.9%
SkyWest Airlines37187.3%6.5%0.0%
Delta Air Lines13887.7%7.2%1.4%

Which month was most reliable for TUS to SEA?

Among qualifying TUS-to-SEA month results, July 2025 had the highest on-time rate: 94.6% of 93 flights. December 2025 was lowest at 74.1% across 85 flights.

MonthFlightsOn time30+ minCancelled
July 20259394.6%4.3%0.0%
August 20259389.2%4.3%0.0%
September 20259091.1%5.6%0.0%
October 20258287.8%9.8%1.2%
November 20258980.9%9.0%1.1%
December 20258574.1%9.4%0.0%
January 20268983.1%9.0%0.0%
February 20268091.2%3.8%0.0%
March 20269182.4%3.3%5.5%
April 20269092.2%6.7%0.0%
May 20269388.2%5.4%0.0%
June 20269081.1%10.0%0.0%

What drove TUS to SEA delay minutes?

Airline was the largest recorded TUS-to-SEA delay category, accounting for 43.9% of 8,685 BTS-attributed delay minutes during July 2025–June 2026.

Airline43.9%
Late aircraft42.8%
National airspace8.5%
Weather4.5%
Security0.3%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.