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

Bozeman, MT (BZN) to Seattle, WA (SEA) flight delay odds

83.6% of 1,571 official scheduled BZN-to-SEA flights arrived on time; 9.9% 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
83.6%arrived on time
9.9%30+ min late
0.7%cancelled
1,571scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.3%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+0.4 mincompleted flights

Which departure time was most reliable for BZN to SEA?

Among qualifying BZN-to-SEA departure window results, Early morning had the highest on-time rate: 91.1% of 552 flights. Evening was lowest at 74.4% across 285 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning55291.1%4.5%0.4%
Late morning11484.2%4.4%0.9%
Afternoon62081.1%12.6%0.8%
Evening28574.4%16.5%1.1%

Which weekday was most reliable for BZN to SEA?

Among qualifying BZN-to-SEA weekday results, Tuesday had the highest on-time rate: 87.2% of 219 flights. Friday was lowest at 79.7% across 232 flights.

DayFlightsOn time30+ minCancelled
Monday23485.0%9.4%0.0%
Tuesday21987.2%7.8%0.0%
Wednesday21386.4%6.6%0.5%
Thursday23080.9%11.7%0.4%
Friday23279.7%10.8%2.2%
Saturday21683.3%12.0%0.9%
Sunday22783.3%10.6%0.9%

Which airline was most reliable for BZN to SEA?

Among qualifying BZN-to-SEA airline results, SkyWest Airlines had the highest on-time rate: 85.9% of 948 flights. Alaska Airlines was lowest at 80.2% across 622 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines94885.9%8.1%0.2%
Alaska Airlines62280.2%12.5%1.4%
Delta Air Lines1100.0%0.0%0.0%

Which month was most reliable for BZN to SEA?

Among qualifying BZN-to-SEA month results, January 2026 had the highest on-time rate: 90.4% of 146 flights. December 2025 was lowest at 75.8% across 161 flights.

MonthFlightsOn time30+ minCancelled
July 202515278.3%11.8%1.3%
August 202515080.7%14.0%0.0%
September 202513789.8%7.3%0.0%
October 202512287.7%6.6%0.8%
November 20259885.7%7.1%3.1%
December 202516175.8%14.9%1.2%
January 202614690.4%6.8%0.0%
February 202611889.0%5.1%0.0%
March 202611782.1%7.7%1.7%
April 20269689.6%7.3%0.0%
May 202612481.5%9.7%0.0%
June 202615078.7%15.3%0.7%

What drove BZN to SEA delay minutes?

Airline was the largest recorded BZN-to-SEA delay category, accounting for 41.4% of 16,146 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.4%
Late aircraft27.6%
National airspace18.0%
Weather12.9%
Security0.1%
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.