BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DEN→SJU

Denver, CO (DEN) to San Juan, PR (SJU) flight delay odds

79.3% of 333 official scheduled DEN-to-SJU flights arrived on time; 11.7% arrived at least 30 minutes late and 0.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
79.3%arrived on time
11.7%30+ min late
0.3%cancelled
333scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.9%all scheduled flights
120+ minutes late0.9%all scheduled flights
Diverted1.2%did not reach as scheduled
Average arrival+3.1 mincompleted flights

Which departure time was most reliable for DEN to SJU?

Only Late morning met the DEN-to-SJU departure window threshold: 79.3% of 333 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Late morning33379.3%11.7%0.3%

Which weekday was most reliable for DEN to SJU?

Among qualifying DEN-to-SJU weekday results, Tuesday had the highest on-time rate: 89.4% of 47 flights. Saturday was lowest at 67.3% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday4785.1%8.5%0.0%
Tuesday4789.4%8.5%0.0%
Wednesday4687.0%4.3%0.0%
Thursday4778.7%10.6%0.0%
Friday4780.9%12.8%0.0%
Saturday5267.3%17.3%1.9%
Sunday4768.1%19.1%0.0%

Which airline was most reliable for DEN to SJU?

Only United Airlines met the DEN-to-SJU airline threshold: 79.3% of 333 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines33379.3%11.7%0.3%

Which month was most reliable for DEN to SJU?

Among qualifying DEN-to-SJU month results, May 2026 had the highest on-time rate: 96.8% of 31 flights. August 2025 was lowest at 50.0% across 20 flights.

MonthFlightsOn time30+ minCancelled
July 20253151.6%32.3%0.0%
August 20252050.0%40.0%0.0%
October 20253187.1%3.2%0.0%
November 20253090.0%0.0%0.0%
December 20253180.6%9.7%0.0%
January 20263183.9%6.5%3.2%
February 20262885.7%7.1%0.0%
March 20263164.5%22.6%0.0%
April 20263093.3%3.3%0.0%
May 20263196.8%3.2%0.0%
June 20263083.3%6.7%0.0%

What drove DEN to SJU delay minutes?

National airspace was the largest recorded DEN-to-SJU delay category, accounting for 50.0% of 3,207 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.7%
Late aircraft25.3%
National airspace50.0%
Weather0.0%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.