No delays reported for YX 5666 (BOS → DCA) as of 6:47 PM ET. It arrived on time 53.6% of the time in June-August 2026. When it was late, the average delay was 1h 17m. 7.7% of flights were cancelled. Right now there are no reported delays at BOS, DCA.
Looks on time
Next leg BOS → DCA, scheduled 8:05 PM local time. No delays at BOS right now.
Cancellation risk: Medium 7.7% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Republic Airways for official times.
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| BOS → DCA Boston, MA to Washington, DC | 8:05 PM → 10:03 PM | 54% |
Local times. Schedules change; check your booking.
How reliable is YX 5666?
| Arrived on time (within 15 min) | 53.6% |
| Average delay when late | 77 min |
| Cancelled | 7.7% |
| Diverted | 0% |
| Flights tracked | 91 |
Best and worst days to fly YX 5666
YX 5666 was most reliable on Saturdays (73% on time) and least reliable on Sundays (33%).
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Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Republic Airways to the Department of Transportation.
Other flights BOS → DCA
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Republic Airways app.
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is YX 5666 delayed today?
Right now there are no reported delays at BOS, DCA. Checked 6:47 PM ET. For this flight's gate and exact status, check the Republic Airways app.
Is YX 5666 usually on time?
YX 5666 arrived within 15 minutes of schedule 53.6% of the time in June-August 2026, with an average delay of 77 minutes when late.
How often is YX 5666 cancelled?
7.7% of YX 5666 flights were cancelled in June-August 2026.