Route · EYW → BOS · 2020–2025 BTS data
Key West to Boston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), EYW to BOS (Key West to Boston) ranks #4752 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 75.2%
- On-time
- -3.8 pts
- vs US avg
- 99 min
- Delay when late
- 666
- Flights
- #4752 of 4927
- Corpus placement
Cancelled
2.1%
Best Month
N/A
Worst Month
N/A
Distance
1,373 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 39 | 12 | 0 | 0 | YX,B6 |
| Apr 2025 | 30 | 7 | 0 | 2 | YX,B6 |
| Mar 2025 | 36 | 10 | 0 | 6 | B6,YX |
| Feb 2025 | 32 | 11 | 2 | 0 | B6,YX |
| Jan 2025 | 30 | 7 | 0 | 2 | B6,YX |
| Dec 2024 | 34 | 16 | 1 | 1 | B6,YX |
| Apr 2024 | 30 | 5 | 1 | 3 | B6 |
| Mar 2024 | 30 | 7 | 0 | 6 | B6 |
| Feb 2024 | 31 | 12 | 2 | 1 | B6,YX |
| Jan 2024 | 32 | 8 | 0 | 5 | B6,MQ |
| Apr 2023 | 30 | 10 | 0 | 4 | B6 |
| Mar 2023 | 31 | 6 | 0 | 4 | B6 |
| Apr 2022 | 30 | 14 | 4 | 3 | B6 |
| Mar 2022 | 31 | 7 | 0 | 2 | B6 |
| Oct 2021 | 31 | 6 | 0 | 2 | B6 |
| Sep 2021 | 30 | 5 | 1 | 1 | B6 |
| Aug 2021 | 31 | 2 | 0 | 0 | B6 |
| Jul 2021 | 31 | 8 | 1 | 0 | B6 |
| Jun 2021 | 30 | 3 | 0 | 1 | B6 |
| Apr 2021 | 34 | 5 | 2 | 1 | B6 |
| Mar 2021 | 33 | 4 | 0 | 0 | YX,B6 |
EYW–BOS seasonal on-time pattern
Best: August (93.5%) · weakest: December (61.6%)
Strongest calendar month
August
93.5% on-time · ~31 flights/mo
Busiest calendar month
December
~37 flights/mo avg
Weakest calendar month
December
61.6% on-time · ~37 flights/mo
Cancellation Rate
2.1%
14 of 666 flights
Diversion Rate
6.6%
44 of 666 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
EYW - Key West
Full on-time, delay-cause, and seasonal performance for Key West, FL.
EYW on-time profileBOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
BOS on-time profileCompare the two airports
See EYW and BOS side by side on delays, cancellations, and reliability.
Compare EYW vs BOSOrigin-hub reliability standing
Mid-pack among EYW departures
From EYW, this corridor sits with 5 other 75–85% on-time routes out of 11 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 6 below 75%). Destination: Boston · fleet on-time rank #4437 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to EYW–BOS.
Routes with a similar on-time rate
What the Data Says About EYW to BOS
The Key West to Boston corridor (EYW to BOS) posts a 75.2% on-time rate on the lower edge of the average band, based on 666 tracked flights. Late flights run 99.0 minutes behind on average. 4 carriers cover the 1,373-mile route; over the last 24 months, 14 of 666 flights were cancelled (2.1%) and 6.6% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, EYW–BOS peaks in August at 93.5% on-time while December carries the heaviest traffic (~37 flights per month) ; the softest month is December at 61.6%, a 31.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does EYW to BOS rank among US routes by traffic? ▼
How often are flights delayed from EYW to BOS? ▼
What is the cancellation rate for EYW to BOS? ▼
How far is the flight from EYW to BOS? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using EYW–BOS data
EYW–BOS is mid-pack at 75.2% on-time; month and carrier mix move more than the corridor headline.
- Compare EYW and BOS airport profiles: delay causes and top routes differ even on the same corridor. EYW airport
- If your dates flex, August (93.5% on-time) beats December (61.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 75.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.