Key West (EYW) to Boston (BOS): On-Time Performance
Data through May 2026
Key West (EYW) to Boston (BOS) is a thinner route than most in this dataset — 220 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 66% arrived on time, noticeably below the national average of 78%.
- On-time
- 66%
- arrived <15 min late
- Avg delay
- 26 min
- completed flights
- Cancelled
- 2.4%
- Flights/day
- 0.60
- last 12 months
- Duration
- 3h 34m
- scheduled
- Distance
- 1,373 mi
Best airline from EYW to BOS
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| JetBlue Airwaysmost reliable | 69% | 24 min | 2.3% | 348 |
| Republic Airways | 52% | 32 min | 3.1% | 64 |
Monthly on-time trend
Best time to fly from EYW to BOS
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 59% | 24 min |
| Tuesdaybest | 81% | 20 min |
| Wednesday | 80% | 13 min |
| Thursday | 64% | 50 min |
| Friday | 63% | 22 min |
| Saturday | 63% | 25 min |
| Sunday | 65% | 20 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations28%
- National airspace system20%
- Weather3%
Frequently asked questions
- How often are flights from EYW to BOS delayed?
- 34% of EYW–BOS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 26 minutes.
- Which airline is most reliable from EYW to BOS?
- JetBlue Airways has the best on-time record on this route at 69%, based on 348 flights. 2 airlines flew EYW–BOS frequently enough to compare in this period.
- How long is the flight from EYW to BOS?
- The scheduled EYW–BOS flight time averages 3h 34m over 1,373 miles. Actual arrival times vary — flights on this route land 15+ minutes late 34% of the time.
- How often are EYW to BOS flights cancelled?
- 2.4% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from EYW to BOS?
- December 2024 was the roughest month in this dataset, with only 49% of arrivals on time. The best was March 2026 at 79%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 420 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.