SJU to DCA flight delays & on-time performance
Nonstop flights from Luis Munoz Marin International Airport to Ronald Reagan Washington National Airport · 1,554 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SJU or DCA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Juan (SJU) to Washington (DCA) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.9% were cancelled, and 14% arrived an hour or more late.
- JetBlue is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5pm did best (73% on time); around 6pm did worst (70%).
- Friday was the most reliable day to fly (87% on time) and Sunday the least (51%).
- The largest source of delay minutes was late-arriving aircraft (64%).
Which airline is most on time from SJU to DCA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| JetBlue | 71% | 1.9% | 28 min | 14.3% | 364 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5pm73%87 flights
- 6pm70%276 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday66%1.9% cancelled
- Tuesday71%1.9% cancelled
- Wednesday73%0.0% cancelled
- Thursday75%0.0% cancelled
- Friday87%1.9% cancelled
- Saturday75%5.9% cancelled
- Sunday51%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft64%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion11%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)43%
- Extreme weather29%
- Air traffic control & airport congestion29%
- Security0%
SJU to DCA: common questions
- How often are SJU to DCA flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Juan to Washington cancelled?
- 1.9% of scheduled flights were cancelled (7 of 364).
- How long are typical delays?
- Across all flights the average arrival delay was 28 min (early arrivals count as zero). Flights that were late arrived 92 min behind schedule on average, and 14.3% of flights were an hour or more late.
- How long is taxi time at SJU?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DCA to SJU — 73% on time
More flights from San Juan
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SJU → DCA, nonstop flights by US airlines that report to the DOT. How we calculate this.