Airport · EYW · Key West, Florida

Key West, FL

Key West, FL posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 93,161 flights (2020–2025); its biggest delay driver is late aircraft.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

79%
On-time: Top 87%
on-time, US airports: 78 min
Delay when late: 1.37%
Cancelled

Key Performance Metrics

Total Flights

93,161

Best Month

Sep 93.2%

Worst Month

Jun 85.3%

Delayed

19,574

Cancelled

1,275

60-65%

1
65-70%

4
70-75%

9
75-80%

48
80-85%

192
85-90%

116
90-95%

12

What this shows EYW is marked in the 75-80% band.

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 846,494.

Late Aircraft 47.1% (398,646 min)

Carrier 29.5% (249,987 min)

NAS (National Aviation System) 16.0% (135,021 min)

Weather 7.2% (60,831 min)

Security 0.2% (2,009 min)

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: September (93.2% on-time). Most delays: June (85.3% on-time).

Month	Avg Flights	Avg Delayed	Avg Cancelled	On-Time %
December	1,565	372	11	87.2%
November	1,312	217	15	91%
October	1,009	133	7	93%
September	856	106	13	93.2%
August	1,047	217	20	88.6%
July	1,166	294	18	86.3%
June	1,148	296	18	85.3%
May	1,248	241	8	89.3%
April	1,477	311	35	87.8%
March	1,696	401	31	87%
February	1,451	315	15	87.8%
January	1,553	361	21	87.3%

Year-Over-Year Performance

Annual flight volume and on-time trends at EYW.

Year	Flights	Delayed	Cancelled	On-Time %
2025	15,522	1,849	97	88.1%
2024	15,893	1,965	216	87.6%
2023	13,793	1,485	70	89.2%
2022	16,282	2,184	316	86.6%
2021	20,609	2,771	222	86.6%
2020	11,062	561	354	94.9%

Cancellation & Diversion Analysis

Flight disruption statistics for Key West, FL.

Cancellation Rate

1.37%

1,275 of 93,161 flights

Diversion Rate

0.46%

424 of 93,161 flights

Delay Rate

21.0%

19,574 of 93,161 flights

Monthly Performance

Recent 24 months of flight data.

Period	Flights	Dep Delayed	Arr Delayed	Cancelled	Diverted
Dec 2025	1,731	234	239	8	2
Nov 2025	1,474	161	150	29	4
Oct 2025	1,117	85	75	2	2
Sep 2025	878	59	38	1	2
Aug 2025	960	100	92	2	6
Jul 2025	1,002	112	112	2	8
Jun 2025	1,008	122	109	6	5
May 2025	1,243	149	127	3	11
Apr 2025	1,508	171	127	4	10
Mar 2025	1,676	278	212	10	15
Feb 2025	1,412	182	143	14	6
Jan 2025	1,513	196	177	16	5
Dec 2024	1,553	203	171	26	2
Nov 2024	1,382	111	100	0	3
Oct 2024	1,120	57	55	26	2
Sep 2024	966	60	49	26	3
Aug 2024	994	109	83	38	7
Jul 2024	1,026	161	142	18	6
Jun 2024	1,018	138	115	19	4
May 2024	1,259	203	156	2	13
Apr 2024	1,544	216	153	11	10
Mar 2024	1,713	285	232	16	12
Feb 2024	1,608	173	139	13	5
Jan 2024	1,710	249	223	21	5

Top Routes from EYW

Busiest routes to and from Key West, FL.

Route	Flights	On-Time	Distance
ATL (Atlanta) → EYW (Key West)	9,312	83.9%	646 mi
EYW (Key West) → ATL (Atlanta)	9,309	83.7%	646 mi
CLT (Charlotte) → EYW (Key West)	7,711	79.4%	736 mi
EYW (Key West) → CLT (Charlotte)	7,705	77.1%	736 mi
EYW (Key West) → MIA (Miami)	7,150	81.5%	126 mi
MIA (Miami) → EYW (Key West)	7,149	85.7%	126 mi
EYW (Key West) → EWR (Newark)	3,449	73.5%	1,196 mi
EWR (Newark) → EYW (Key West)	3,448	79.5%	1,196 mi
ORD (Chicago) → EYW (Key West)	2,778	75.1%	1,251 mi
EYW (Key West) → ORD (Chicago)	2,776	71.8%	1,251 mi
EYW (Key West) → DCA (Washington)	2,500	76.2%	1,023 mi
DCA (Washington) → EYW (Key West)	2,498	79.9%	1,023 mi
DFW (Dallas/Fort Worth) → EYW (Key West)	2,462	71.9%	1,089 mi
EYW (Key West) → DFW (Dallas/Fort Worth)	2,460	67.8%	1,089 mi
EYW (Key West) → PHL (Philadelphia)	2,084	71.2%	1,121 mi
PHL (Philadelphia) → EYW (Key West)	2,052	83%	1,121 mi
EYW (Key West) → LGA (New York)	1,586	69.5%	1,207 mi
LGA (New York) → EYW (Key West)	1,585	79.4%	1,207 mi
BOS (Boston) → EYW (Key West)	667	79%	1,373 mi
EYW (Key West) → BOS (Boston)	666	75.2%	1,373 mi

Airports With a Similar On-Time Rate

Other U.S. airports nationwide whose on-time rate is closest to Key West, FL's 79%.

Denver, CO

78.9% on-time 3,293,040 flights

White Plains, NY

79.1% on-time 117,692 flights

Rockford, IL

78.9% on-time 9,512 flights

Cody, WY

78.9% on-time 7,056 flights

Clarksburg/Fairmont, WV

79.1% on-time 6,552 flights

Hobbs, NM

79.1% on-time 4,498 flights

Other Airports in Florida

Compare performance with other Florida airports.

MCO 76.7%

Orlando, FL

Orlando · 1,718,833 flights

MIA 77.9%

Miami, FL

Miami · 1,160,127 flights

FLL 76.4%

Fort Lauderdale, FL

Fort Lauderdale · 1,010,982 flights

TPA 79.8%

Tampa, FL

Tampa · 860,941 flights

RSW 80.9%

Fort Myers, FL

Fort Myers · 420,518 flights

JAX 80.4%

Jacksonville, FL

Jacksonville · 316,106 flights

PBI 76.9%

West Palm Beach/Palm Beach, FL

West Palm Beach/Palm Beach · 302,058 flights

SRQ 79.5%

Sarasota/Bradenton, FL

Sarasota/Bradenton · 177,587 flights

Keep exploring

More flight data around Key West, FL.

Florida flight data

Statewide on-time and delay aggregates, plus every reporting airport in Florida.

View FL data →

Airport rankings

See where EYW sits among U.S. airports on on-time rate and average delay.

Best on-time airports →

Compare airports

Put EYW head-to-head with another airport on delays and reliability.

Open comparison tool →

What the Data Says About EYW

Key West, FL in Key West, Florida handled 93,161 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 79% on-time departure rate. Of those flights, 19,574 experienced delays, 1,275 were cancelled, and 424 were diverted. The cancellation rate works out to 1.37%, the diversion rate to 0.46%, and the average delay when departures run late is 78.0 minutes. These figures are the baseline for comparing EYW against other airports in the same state and nationally.

Breaking down what drives delays at EYW, Late Aircraft leads the pack. Late Aircraft accounts for 47.1% of total delay minutes, followed by Carrier at 29.5% and NAS (National Aviation System) at 16.0%. Weather contributes 7.2% of delay minutes at this airport, while security holds the smallest share at 0.2%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, September runs the cleanest at EYW with a 93.2% on-time rate, while June is the roughest at 85.3% - a 8-point swing between best and worst month. Volume peaks in March, when average flights hit 1,696. The busiest route connecting EYW is to ATL (Atlanta), with 9,312 flights at a 83.9% on-time rate. Combine these numbers - 79% on-time, 78.0-minute average delay, 1.37% cancellation rate, and you have a concrete picture of departure reliability at Key West, FL.

Frequently Asked Questions

What is the on-time performance rate at Key West, FL (EYW)? ▼

Key West, FL has an overall on-time departure rate of 79%. Out of 93,161 total flights tracked, 19,574 experienced delays and 1,275 were cancelled.

What is the most common cause of delays at EYW? ▼

The top delay cause at Key West, FL is Late Aircraft. Late Aircraft accounts for 47.1% of all delay minutes.

What is the average delay time at EYW? ▼

The average delay at Key West, FL is 78.0 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 EYW? ▼

Based on historical data, September has the best on-time performance at EYW with 93.2% of flights departing on time.

What is the worst month for delays at EYW? ▼

June tends to have the most delays at EYW, with an on-time rate of only 85.3%.

How many routes operate from EYW? ▼

Key West, FL serves at least 20 routes. The busiest route is ATL to EYW (Atlanta - Key West) with 9,312 flights.

What is the cancellation rate at EYW? ▼

Key West, FL has a cancellation rate of 1.37%, based on 1,275 cancelled flights out of 93,161 total flights tracked.

Flight Guides

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Best & Worst Airlines for On-Time Performance

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Why Flights Get Cancelled

Cancellation causes broken down by data

How to Choose Reliable Flight Routes

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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.

Read our methodology - how this data is sourced, computed, and verified.

Using EYW's data

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

Check the busiest route from EYW before you book a connection. See top routes
Travel in September rather than June if your dates are flexible. Seasonal patterns
Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines

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

All airports → | Rankings →

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 Accessed 2026-07-23

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.