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Airport · CDB · Cold Bay, Alaska

Cold Bay, AK

Cold Bay, AK posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a smaller regional airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 524 flights (2020–2025); its biggest delay driver is late aircraft.

Data updated 2026-06-13

62.6%
On-time
Top 100%
on-time, US airports
46 min
Delay when late
4.20%
Cancelled

Key Performance Metrics

Total Flights

524

Best Month

Apr 93.8%

Worst Month

Oct 61.1%

Delayed

196

Cancelled

22

CDB on-time rate vs. the national average

Behind the U.S. average across all 382 tracked airports.

0%100%U.S. average79%62.6%

Where CDB sits among all 382 tracked airports

CDB's 62.6% on-time rate falls in the 60-65% band, the only band it shares.

National on-time-rate distribution

airports

What this shows CDB is marked in the 60-65% band.

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 5,805.

Late Aircraft 38.7% (2,248 min)
Carrier 9.6% (558 min)
NAS (National Aviation System) 18.6% (1,080 min)
Weather 4.9% (282 min)
Security 28.2% (1,637 min)

CDB - seasonal on-time pattern

Best: April (93.8%) · worst: October (61.1%)

50%60%70%80%90%100% JanFebMarAprMayJunJulAugSepOctNovDec 72.2%

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: April (93.8% on-time). Most delays: October (61.1% on-time).

Month Avg Flights Avg Delayed Avg Cancelled On-Time %
December 36 19 2 72.2%
November 32 14 6 75%
October 36 23 2 61.1%
September 36 27 1 61.1%
August 26 9 0 80.8%
July 36 15 1 80.6%
June 34 8 0 83.8%
May 28 9 1 82.1%
April 32 3 2 93.8%
March 36 9 1 86.1%
February 32 11 2 87.5%
January 36 11 3 88.9%

Year-Over-Year Performance

Annual flight volume and on-time trends at CDB.

CDB - on-time rate by year

2020–2021, year-over-year trend.

65%70%75%80%85%90% 20202021 71.6% 88.1% ▲ +23.0%
Year Flights Delayed Cancelled On-Time %
2021 260 31 9 88.1%
2020 264 75 13 71.6%

Cancellation & Diversion Analysis

Flight disruption statistics for Cold Bay, AK.

Cancellation Rate

4.20%

22 of 524 flights

Diversion Rate

0.00%

0 of 524 flights

Delay Rate

37.4%

196 of 524 flights

Monthly Performance

Recent 24 months of flight data.

Period Flights Dep Delayed Arr Delayed Cancelled Diverted
Aug 2021 16 4 4 0 0
Jul 2021 36 4 6 0 0
Jun 2021 36 2 1 0 0
May 2021 36 6 5 1 0
Apr 2021 32 2 1 2 0
Mar 2021 36 5 4 1 0
Feb 2021 32 4 7 2 0
Jan 2021 36 4 7 3 0
Dec 2020 36 10 9 2 0
Nov 2020 32 8 6 6 0
Oct 2020 36 14 9 2 0
Sep 2020 36 14 13 1 0
Aug 2020 36 6 4 0 0
Jul 2020 36 10 9 2 0
Jun 2020 32 9 3 0 0
May 2020 20 4 2 0 0

What the Data Says About CDB

Cold Bay, AK in Cold Bay, Alaska handled 524 flights in the Bureau of Transportation Statistics dataset between 2020 and 2021, posting a 62.6% on-time departure rate. Of those flights, 196 experienced delays, 22 were cancelled, and 0 were diverted. The cancellation rate works out to 4.20%, the diversion rate to 0.00%, and the average delay when departures run late is 45.5 minutes. These figures are the baseline for comparing CDB against other airports in the same state and nationally.

Breaking down what drives delays at CDB, Late Aircraft leads the pack. Late Aircraft accounts for 38.7% of total delay minutes, followed by Security at 28.2% and NAS (National Aviation System) at 18.6%. Weather contributes 4.9% of delay minutes at this airport, while security holds the smallest share at 28.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, April runs the cleanest at CDB with a 93.8% on-time rate, while October is the roughest at 61.1% - a 33-point swing between best and worst month. Volume peaks in December, when average flights hit 36. Combine these numbers - 62.6% on-time, 45.5-minute average delay, 4.20% cancellation rate, and you have a concrete picture of departure reliability at Cold Bay, AK.

Frequently Asked Questions

What is the on-time performance rate at Cold Bay, AK (CDB)?
Cold Bay, AK has an overall on-time departure rate of 62.6%. Out of 524 total flights tracked, 196 experienced delays and 22 were cancelled.
What is the most common cause of delays at CDB?
The top delay cause at Cold Bay, AK is Late Aircraft. Late Aircraft accounts for 38.7% of all delay minutes.
What is the average delay time at CDB?
The average delay at Cold Bay, AK is 45.5 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 CDB?
Based on historical data, April has the best on-time performance at CDB with 93.8% of flights departing on time.
What is the worst month for delays at CDB?
October tends to have the most delays at CDB, with an on-time rate of only 61.1%.
How many routes operate from CDB?
Cold Bay, AK serves multiple routes.
What is the cancellation rate at CDB?
Cold Bay, AK has a cancellation rate of 4.20%, based on 22 cancelled flights out of 524 total flights tracked.

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Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2021). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Using CDB's data

An airport-level on-time rate is a starting point, not a guarantee for your specific flight.

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. 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

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.