Route reliability record
EYW→CLT
Key West to Charlotte
- Flights
- 1,251
- Period
- September 2025 to August 2026
- Distance
- 736 mi
- Carriers
- 2
This route lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 1,251 EYW to CLT flights, with a median arrival 11 minutes early.
Best time to fly EYW to CLT: a 8am–11am departure, ideally on a Wednesday. Flights in that window arrived on time 93.8% of the time and Wednesday flights 91.5%, against 82.2% for the route overall.
Set against the rest of the country, this route's record is 5 points better than the US average of 77.3%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.
Key figures
On time
82.2%
Arrivals under 15 minutes late, of 1,216 completed flights
Avg delay
94 min
Across delayed arrivals only, not all flights
Cancelled
2.64%
National rate is 1.89%
Best carrier
American
80.3% on time across 927 flights
These figures cover 1,251 flights between September 2025 and August 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Which airline is most reliable on EYW to CLT
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 324 | 87.4% | 43 min | 1.85% | A |
| American Airlines | 927 | 80.3% | 105 min | 2.91% | B |
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Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against half a point between the best and worst carrier.
- 5am–8am103 flights85.1%
- 8am–11am98 flights93.8%
- 11am–2pm326 flights78.9%
- 2pm–5pm497 flights85.6%
- 5pm–8pm227 flights72.9%
- 8pm–5am—
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 93.8% of the time, against 72.9% for the evening window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 497 flights scheduled in it.
Explore
Filter EYW to CLT by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On EYW to CLT, the best departure window is 8am–11am at 93.8% on time and the worst is 5pm–8pm at 72.9%, a wide gap of 20.9 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am85.1%
- 8–11am93.8%
- 11am–2pm78.9%
- 2–5pm85.6%
- 5–8pm72.9%
- 8pm–5am—
best all US flightsScale 60% to 100%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 24 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 66.3% on time, 24 points below October, the best at 90.2%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 124 flights.
Across the week, Wednesday is the strongest day at 91.5% on time and Saturday the weakest at 72.8%, a spread of 19 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 51% of the 20,000 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 41%Carrier
- 5%Extreme weather
- 3%National Airspace System
- 0%Security
51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 20,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 20,367 reported delay minutes.
The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 8,361 of the 20,000 delay minutes reported here.
Cancellations run at 2.64%, against 1.89% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
6.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 736 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 82.0% on time across 1,251 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,251 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in CLT after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. October runs 90.2% on time and July 66.3%, a swing of 24 points. If the dates move at all, move them out of July before you think about anything else. 1,216 completed flights over 12 months sit behind that.
Common questions
EYW to CLT questions
How often is EYW to CLT delayed?
About one flight in six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 17.8% of the 1,251 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is EYW to CLT compared with the rest of the country?
82.2% of flights arrive on time here against a national 77.3%, a difference of 5 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on EYW to CLT?
The 8am–11am departure window is the strongest at 93.8% on time. The 5pm–8pm window is the weakest at 72.9%, 21 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on EYW to CLT?
July is the weakest month at 66.3% on time, compared with 90.2% in October. Across the year that is 24 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- CLT to EYW — the return legseparate record
- Charlotte Douglas International (CLT) delay statistics
- Envoy Air on EYW to CLT87.4%
- American Airlines on EYW to CLT80.3%
- EYW to ATL, a related route86.1%
- MCO to CLT, a related route78.6%
- EYW to MIA, a related route81.7%
- Envoy Air on-time record87.4%
- American Airlines on-time record80.3%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. EYW to CLT and CLT to EYW are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed EYW to CLT’s on-time badge on your site
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.