Route · SJU → DEN · 2020–2025 BTS data
San Juan to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJU to DEN (San Juan to Denver) ranks #4829 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 75.4%
- On-time
- -3.6 pts
- vs US avg
- 52 min
- Delay when late
- 582
- Flights
- #4829 of 4927
- Corpus placement
Cancelled
0.9%
Best Month
N/A
Worst Month
N/A
Distance
2,733 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 2 | 0 | 1 | UA |
| Nov 2025 | 30 | 4 | 0 | 0 | UA |
| Oct 2025 | 31 | 4 | 0 | 2 | UA |
| Jul 2025 | 31 | 6 | 0 | 1 | UA |
| Jun 2025 | 30 | 5 | 0 | 0 | UA |
| May 2025 | 31 | 8 | 0 | 1 | UA |
| Apr 2025 | 30 | 11 | 0 | 0 | UA |
| Mar 2025 | 31 | 7 | 0 | 0 | UA |
| Jan 2025 | 31 | 11 | 1 | 0 | UA |
| Dec 2024 | 31 | 3 | 0 | 0 | UA |
| Nov 2024 | 30 | 1 | 0 | 0 | UA |
| Jul 2024 | 31 | 8 | 1 | 0 | UA |
| Jun 2024 | 30 | 12 | 0 | 1 | UA |
| May 2024 | 31 | 19 | 0 | 4 | UA |
| Apr 2024 | 30 | 15 | 0 | 2 | UA |
| Mar 2024 | 31 | 11 | 0 | 1 | UA |
| Jan 2024 | 31 | 6 | 3 | 3 | UA |
| Dec 2023 | 31 | 7 | 0 | 0 | UA |
| Nov 2023 | 30 | 3 | 0 | 0 | UA |
SJU–DEN seasonal on-time pattern
Best: November (91.1%) · weakest: May (56.5%)
Strongest calendar month
November
91.1% on-time · ~30 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
May
56.5% on-time · ~31 flights/mo
Cancellation Rate
0.9%
5 of 582 flights
Diversion Rate
2.7%
16 of 582 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SJU - San Juan
Full on-time, delay-cause, and seasonal performance for San Juan, PR.
SJU on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See SJU and DEN side by side on delays, cancellations, and reliability.
Compare SJU vs DENOrigin-hub reliability standing
Mid-pack among SJU departures
From SJU, this corridor sits with 14 other 75–85% on-time routes out of 21 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 6 below 75%). Destination: Denver · fleet on-time rank #4413 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SJU–DEN.
Routes with a similar on-time rate
What the Data Says About SJU to DEN
The San Juan to Denver corridor (SJU to DEN) posts a 75.4% on-time rate on the lower edge of the average band, based on 582 tracked flights. Late flights run 51.7 minutes behind on average. 1 carrier cover the 2,733-mile route; over the last 24 months, 5 of 582 flights were cancelled (0.9%) and 2.7% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, SJU–DEN peaks in November at 91.1% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is May at 56.5%, a 34.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SJU to DEN rank among US routes by traffic? ▼
How often are flights delayed from SJU to DEN? ▼
What is the cancellation rate for SJU to DEN? ▼
How far is the flight from SJU to DEN? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using SJU–DEN data
SJU–DEN is mid-pack at 75.4% on-time; month and carrier mix move more than the corridor headline.
- Compare SJU and DEN airport profiles: delay causes and top routes differ even on the same corridor. SJU airport
- If your dates flex, November (91.1% on-time) beats May (56.5%) on this corridor. Seasonal chart
- 4 other routes post a similar 75.4% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.