PlainFlights
OTZ

Kotzebue, AK

Kotzebue, Alaska

Data coverage: 2020 — 2025

Kotzebue, AK (OTZ) in Kotzebue, Alaska recorded 5,950 flights across 2020–2025, achieving a 88.7% on-time departure rate with an average delay of 59.3 minutes. The cancellation rate was 2.76%, and the leading cause of delays was Late Aircraft.

Key Performance Metrics

Total Flights

5,950

On-Time Rate

88.7%

Avg Delay

59.3 min

Delayed

675

Cancelled

164

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 17,355.

Late Aircraft 80.3% (13,931 min)
Carrier 7.0% (1,207 min)
NAS (National Aviation System) 8.7% (1,518 min)
Weather 0.9% (162 min)
Security 3.1% (537 min)

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: May (98% on-time). Most delays: December (87.5% on-time).

Month Avg Flights Avg Delayed Avg Cancelled On-Time %
December 79 21 5 87.5%
November 77 10 2 94.8%
October 84 6 3 97.4%
September 80 7 2 95.4%
August 80 9 1 94.8%
July 80 8 1 94.8%
June 82 7 1 96%
May 83 5 1 98%
April 78 6 2 96.4%
March 94 11 7 94.7%
February 85 12 3 94.3%
January 91 11 3 95%

Year-Over-Year Performance

Annual flight volume and on-time trends at OTZ.

Year Flights Delayed Cancelled On-Time %
2025 726 31 14 95.7%
2024 732 35 22 95.2%
2023 1,054 43 32 95.9%
2022 1,448 76 43 94.8%
2021 1,168 72 23 93.8%
2020 822 44 30 94.6%

Cancellation & Diversion Analysis

Flight disruption statistics for Kotzebue, AK.

Cancellation Rate

2.76%

164 of 5,950 flights

Diversion Rate

0.07%

4 of 5,950 flights

Delay Rate

11.3%

675 of 5,950 flights

Monthly Performance

Recent 24 months of flight data.

Period Flights Dep Delayed Arr Delayed Cancelled Diverted
Dec 2025 54 3 2 0 0
Nov 2025 58 2 3 0 0
Oct 2025 62 1 1 3 0
Sep 2025 60 2 3 0 0
Aug 2025 64 9 6 2 0
Jul 2025 62 3 2 0 0
Jun 2025 60 1 2 0 0
May 2025 62 1 3 2 0
Apr 2025 62 4 4 1 0
Mar 2025 66 3 4 0 0
Feb 2025 56 1 3 1 0
Jan 2025 60 1 0 5 0
Dec 2024 60 5 6 1 0
Nov 2024 58 2 3 2 0
Oct 2024 68 3 4 5 0
Sep 2024 60 2 1 0 0
Aug 2024 62 0 1 0 0
Jul 2024 62 4 2 0 0
Jun 2024 60 4 4 0 0
May 2024 62 1 2 0 0
Apr 2024 60 5 5 4 0
Mar 2024 62 2 3 4 0
Feb 2024 58 4 6 2 1
Jan 2024 60 3 4 4 0

Top Routes from OTZ

Busiest routes to and from Kotzebue, AK.

Route Flights On-Time Distance
OTZ (Kotzebue) → ANC (Anchorage) 2,558 89.7% 548 mi
ANC (Anchorage) → OTZ (Kotzebue) 1,490 89.3% 548 mi
OME (Nome) → OTZ (Kotzebue) 821 86% 183 mi

What the Data Says About OTZ

Kotzebue, AK in Kotzebue, Alaska handled 5,950 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 88.7% on-time departure rate. Of those flights, 675 experienced delays, 164 were cancelled, and 4 were diverted. The cancellation rate works out to 2.76%, the diversion rate to 0.07%, and the average delay when departures run late is 59.3 minutes. These figures are the baseline for comparing OTZ against other airports in the same state and nationally.

Breaking down what drives delays at OTZ, Late Aircraft leads the pack. Late Aircraft accounts for 80.3% of total delay minutes, followed by NAS (National Aviation System) at 8.7% and Carrier at 7.0%. Weather contributes 0.9% of delay minutes at this airport, while security holds the smallest share at 3.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, May runs the cleanest at OTZ with a 98% on-time rate, while December is the roughest at 87.5% — a 11-point swing between best and worst month. Volume peaks in March, when average flights hit 94. The busiest route from OTZ is to ANC (Anchorage), with 2,558 flights at a 89.7% on-time rate. Combine these numbers — 88.7% on-time, 59.3-minute average delay, 2.76% cancellation rate — and you have a concrete picture of departure reliability at Kotzebue, AK.

Frequently Asked Questions

What is the on-time performance rate at Kotzebue, AK (OTZ)?
Kotzebue, AK has an overall on-time departure rate of 88.7%. Out of 5,950 total flights tracked, 675 experienced delays and 164 were cancelled.
What is the most common cause of delays at OTZ?
The top delay cause at Kotzebue, AK is Late Aircraft. Late Aircraft accounts for 80.3% of all delay minutes.
What is the average delay time at OTZ?
The average delay at Kotzebue, AK is 59.3 minutes. This includes delays from carrier issues, weather, National Aviation System constraints, security, and late-arriving aircraft.
What is the best month to fly from OTZ?
Based on historical data, May has the best on-time performance at OTZ with 98% of flights departing on time.
What is the worst month for delays at OTZ?
December tends to have the most delays at OTZ, with an on-time rate of only 87.5%.
How many routes operate from OTZ?
Kotzebue, AK serves at least 3 routes. The busiest route is OTZ to ANC (Kotzebue — Anchorage) with 2,558 flights.
What is the cancellation rate at OTZ?
Kotzebue, AK has a cancellation rate of 2.76%, based on 164 cancelled flights out of 5,950 total flights tracked.

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Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Related

Data sourced from Bureau of Transportation Statistics, FAA, NHTSA, DOT, and CPSC public datasets. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

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