Denver (DEN) to San Juan (SJU) flights
United Airlines flies nonstop from Denver International Airport to Luis Munoz Marin International Airport, with about 7 flights a week in July 2026. The 2,733-mile flight takes about 5h 42m gate to gate.
- Distance
- 2,733 mi · 4,398 km
- Flight time
- 5h 42m
- Airlines
- 1
- Seats filled
- 91%
Airlines flying DEN to SJU
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 7 | Boeing 737 MAX 9, Boeing 737 MAX 8, Boeing 737-900ER | 51,928 | 5h 42m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DEN to SJU flight schedule
1 flight numbers flew this route in August 2026. The first usually leaves at 9:43am and the last at 9:43am. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 1339United Airlines | 9:43am | 5:38pm | 13 | 84% |
Is DEN to SJU on time?
From September 2025 to August 2026, 84% of 326 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Most delay time was caused by air traffic control and airport congestion (49%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 326 | 84% | 9 min | 0.3% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 20 | 3,021 | |
| September 2025 | 9 | 1,315 | |
| October 2025 | 31 | 4,603 | |
| November 2025 | 29 | 4,656 | |
| December 2025 | 31 | 5,145 | |
| January 2026 | 30 | 5,034 | |
| February 2026 | 28 | 4,662 | |
| March 2026 | 29 | 4,740 | |
| April 2026 | 30 | 4,623 | |
| May 2026 | 31 | 4,723 | |
| June 2026 | 30 | 4,623 | |
| July 2026 | 31 | 4,783 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.