EYW to BOS flight delays
Key West, FL (EYW) Boston, MA (BOS) · 1,373 miles
220 flights · January 2025 – August 2026 · the publishing regulator
70.53%
Arrived on time
Within 15 minutes of schedule
2.73%
Cancelled
Share of scheduled flights
80 min
When late, late by
Average across delayed arrivals
24 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The cancellation rate for the period is 2.73%, but almost all of it belongs to one month: February 2026, when 8.33% of flights on this route did not operate. Outside that month the route cancelled at around 1.19%. Whatever happened in February was an event, not the normal state of this route.
The season swings this route hard. In November it ran 20.5 points more punctual than in February — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only JetBlue Airways flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 220 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, JetBlue Airways arrived on time most often on EYW to BOS. Flights ran closest to schedule in November and worst in October.
Every airline on EYW to BOS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| JetBlue Airways | 182 | 75.44% | 2.75% | 80 min | D |
| Republic Airways | 30 | 50% | 3.33% | 91 min | — |
| Envoy Air | 8 | 37.5% | 0% | 45 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
BOS to EYW Boston back to Key West 72.9% on time DOther routes from Key West
Common questions
Are flights from Key West to Boston usually delayed?
70.53% of flights on the EYW to BOS route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Key West to Boston?
Only JetBlue Airways appears in the published record on this route, with 182 flights and 75.44% arriving on time.
How often are EYW to BOS flights cancelled?
2.73% of scheduled flights did not operate — about 27 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Key West to Boston?
November, when 81.8% of flights arrived on time. The worst was February at 61.3%.
When EYW to BOS flights are late, how late are they?
About 80 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on EYW to BOS during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →