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

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

Historically, 82.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,572 flights.

HISTORICAL ROUTE SIGNALLower disruption
82.3%arrived on time
9.5%30+ min late
0.5%cancelled
1,572scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.4%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+1.9 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning18387.4%3.8%0.0%
Late morning51678.7%11.4%1.0%
Afternoon32479.0%10.8%0.3%
Evening42587.3%7.5%0.2%
Night12481.5%12.9%0.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday23483.3%9.0%0.0%
Tuesday22085.0%7.7%0.0%
Wednesday21284.0%8.0%0.0%
Thursday23079.6%11.3%0.4%
Friday23278.9%10.3%2.6%
Saturday21684.7%9.7%0.5%
Sunday22881.1%10.1%0.0%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines94887.0%6.1%0.2%
Alaska Airlines62375.1%14.6%1.0%
Delta Air Lines1100.0%0.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202515275.0%11.8%0.7%
August 202515080.0%10.7%0.0%
September 202513787.6%7.3%0.0%
October 202512384.6%6.5%0.8%
November 20259886.7%3.1%2.0%
December 202516280.9%11.1%0.6%
January 202614680.8%11.6%0.0%
February 202611887.3%8.5%0.0%
March 202611782.9%7.7%2.6%
April 20269584.2%6.3%0.0%
May 202612479.8%14.5%0.0%
June 202615082.0%10.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline48.7%
Late aircraft24.5%
National airspace13.6%
Weather12.8%
Security0.4%
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.