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

Seattle, WA (SEA) to Anchorage, AK (ANC) flight delay odds

74.4% of 6,681 official scheduled SEA-to-ANC flights arrived on time; 13.6% arrived at least 30 minutes late and 1.0% 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 SIGNALGenerally reliable
74.4%arrived on time
13.6%30+ min late
1.0%cancelled
6,681scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.4%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+6.0 mincompleted flights

Which departure time was most reliable for SEA to ANC?

Among qualifying SEA-to-ANC departure window results, Early morning had the highest on-time rate: 84.6% of 793 flights. Late morning was lowest at 71.1% across 1,524 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning79384.6%6.6%2.8%
Late morning1,52471.1%15.0%1.1%
Afternoon1,42476.6%12.9%0.7%
Evening1,75271.9%16.0%0.8%
Night1,18872.9%13.8%0.3%

Which weekday was most reliable for SEA to ANC?

Among qualifying SEA-to-ANC weekday results, Tuesday had the highest on-time rate: 79.9% of 980 flights. Friday was lowest at 70.9% across 959 flights.

DayFlightsOn time30+ minCancelled
Monday99173.0%14.8%0.6%
Tuesday98079.9%9.8%0.5%
Wednesday90274.8%13.3%0.6%
Thursday97571.5%14.9%0.9%
Friday95970.9%16.1%1.4%
Saturday88974.8%12.8%1.3%
Sunday98575.8%13.5%1.7%

Which airline was most reliable for SEA to ANC?

Among qualifying SEA-to-ANC airline results, Delta Air Lines had the highest on-time rate: 77.2% of 1,630 flights. Hawaiian Airlines was lowest at 52.8% across 123 flights.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines4,92874.0%13.6%1.1%
Delta Air Lines1,63077.2%12.8%0.6%
Hawaiian Airlines12352.8%26.8%1.6%

Which month was most reliable for SEA to ANC?

Among qualifying SEA-to-ANC month results, September 2025 had the highest on-time rate: 88.3% of 624 flights. December 2025 was lowest at 53.8% across 478 flights.

MonthFlightsOn time30+ minCancelled
July 202574564.3%18.0%2.1%
August 202572471.5%15.5%1.1%
September 202562488.3%6.7%0.2%
October 202555375.4%13.0%1.6%
November 202548383.9%7.5%1.2%
December 202547853.8%27.6%1.0%
January 202647873.4%14.2%2.5%
February 202641479.5%10.1%0.2%
March 202647866.1%20.1%1.0%
April 202645284.1%6.6%0.0%
May 202658779.0%10.7%0.2%
June 202666575.6%12.3%0.5%

What drove SEA to ANC delay minutes?

Airline was the largest recorded SEA-to-ANC delay category, accounting for 50.1% of 82,801 BTS-attributed delay minutes during July 2025–June 2026.

Airline50.1%
Late aircraft27.3%
National airspace20.4%
Weather2.0%
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.