4,396 km · International

Denver (DEN) – Luis Munoz Marin (SJU)

In July 2026, 62 flights operated between Denver and Luis Munoz Marin (both directions), and 74.2% left on time, according to the US BTS.

Flights operated · latest month62▲ 0.0%vs July 2025
On-time departures86.0%Average delay 6.9 min
Cancelled0.2%3 of 1,228 scheduled flights
Airlines1

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Partial coverage: only airlines that report on-time data to the US DOT · 22 of 22 periods have data

October 2024 March 2025 September 2025 February 2026 July 2026

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods

Period	Flights operated 2025	Flights operated 2026	Change vs last year
January	61	60	▼ 1.6%
February	56	56	0.0%
March	62	62	0.0%
April	60	60	0.0%
May	62	62	0.0%
June	60	60	0.0%
July	62	62	0.0%
August	40	–	–
September	18	–	–
October	62	–	in progress
November	60	–	–
December	62	–	–
Year to date (Jan–Jul)	423	422	▼ 0.2%

On-time departures by month

Partial coverage: only airlines that report on-time data to the US DOT · 22 of 22 periods have data

October 2024 March 2025 September 2025 February 2026 July 2026

Departures within 15 minutes of schedule.

The most recent periods19 periods

Period	On-time departures 2025	On-time departures 2026	Change vs last year
January	82.0%	85.0%	▲ 3.7%
February	91.1%	80.4%	▼ 11.7%
March	87.1%	85.5%	▼ 1.8%
April	93.3%	95.0%	▲ 1.8%
May	79.0%	98.4%	▲ 24.6%
June	85.0%	88.3%	▲ 3.9%
July	75.8%	74.2%	▼ 2.1%
August	67.5%	–	–
September	94.4%	–	–
October	93.5%	–	in progress
November	90.0%	–	–
December	82.3%	–	–
Year-to-date average (Jan–Jul)	84.8%	86.7%	▲ 2.3%

Cancelled flights by month

Partial coverage: only airlines that report on-time data to the US DOT · 22 of 22 periods have data

October 2024 March 2025 September 2025 February 2026 July 2026

The most recent periods19 periods

Period	Cancelled flights 2025	Cancelled flights 2026	Change vs last year
January	1	2	▲ 100.0%
February	0	0	–
March	0	0	–
April	0	0	–
May	0	0	–
June	0	0	–
July	0	0	–
August	0	–	–
September	0	–	–
October	0	–	in progress
November	0	–	–
December	0	–	–
Year to date (Jan–Jul)	1	2	▲ 100.0%

By direction

DEN → SJU

Scheduled flights: 614
Flights operated: 613
Cancelled: 1 · 0.2%
On-time departures: 85.5%

SJU → DEN

Scheduled flights: 614
Flights operated: 612
Cancelled: 2 · 0.3%
On-time departures: 86.4%

DEN → SJU and SJU → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026

Airline	Scheduled flights	Share	On-time departures	Cancelled
United Airlines UA	1,228	100.0%	86.0%	3

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay13:00–14:004.2min · 323 recorded · 323 measured

Gap to highest-delay hour5.2min13:00 ↔ 09:00

Recorded flights1,228DEN–SJU

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT

Hover, tap or focus a point to see its value, sample and source.

View the figures

Departure hour	On-time departures	Average departure delay	With departure time	Recorded flights
00:00	No observations	—	—	—
01:00	No observations	—	—	—
02:00	No observations	—	—	—
03:00	No observations	—	—	—
04:00	No observations	—	—	—
05:00	No observations	—	—	—
06:00	No observations	—	—	—
07:00	No observations	—	—	—
08:00	No observations	—	—	—
09:00	85.5%	9.3 min	613	614
10:00	No observations	—	—	—
11:00	No observations	—	—	—
12:00	No observations	—	—	—
13:00	86.1%	4.2 min	323	323
14:00	86.9%	4.6 min	289	291
15:00	No observations	—	—	—
16:00	No observations	—	—	—
17:00	No observations	—	—	—
18:00	No observations	—	—	—
19:00	No observations	—	—	—
20:00	No observations	—	—	—
21:00	No observations	—	—	—
22:00	No observations	—	—	—
23:00	No observations	—	—	—

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures

Day of week	On-time departures	Average departure delay	With departure time	Recorded flights
Monday	Fewer than 200 measured departures	—	173	174
Tuesday	Fewer than 200 measured departures	—	172	172
Wednesday	Fewer than 200 measured departures	—	172	172
Thursday	Fewer than 200 measured departures	—	174	174
Friday	Fewer than 200 measured departures	—	174	174
Saturday	Fewer than 200 measured departures	—	186	188
Sunday	Fewer than 200 measured departures	—	174	174

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures

Month of year	On-time departures	Average departure delay	With departure time	Recorded flights
Jan	Fewer than 200 measured departures	—	121	124
Feb	Fewer than 200 measured departures	—	112	112
Mar	Fewer than 200 measured departures	—	124	124
Apr	Fewer than 200 measured departures	—	120	120
May	Fewer than 200 measured departures	—	124	124
Jun	Fewer than 200 measured departures	—	120	120
Jul	Fewer than 200 measured departures	—	124	124
Aug	Fewer than 200 measured departures	—	40	40
Sep	Fewer than 200 measured departures	—	18	18
Oct	Fewer than 200 measured departures	—	78	78
Nov	Fewer than 200 measured departures	—	120	120
Dec	Fewer than 200 measured departures	—	124	124

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

On time 85.7% 1,053
Delayed >15 min 14.0% 172
Cancelled 0.2% 3
Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

Flight numbers	By direction	Departures	On time
UA1339	DEN → SJU	614	85.5%
UA1368	SJU → DEN	614	86.4%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures

Period	Flights operated	Change vs last year	Cancelled	On-time departures
July 2026	62	+0.0%	0	74.2%
June 2026	60	+0.0%	0	88.3%
May 2026	62	+0.0%	0	98.4%
April 2026	60	+0.0%	0	95.0%
March 2026	62	+0.0%	0	85.5%
February 2026	56	+0.0%	0	80.4%
January 2026	60	−1.6%	2	85.0%
December 2025	62	+0.0%	0	82.3%
November 2025	60	+0.0%	0	90.0%
October 2025	62	+287.5%	0	93.5%
September 2025	18		0	94.4%
August 2025	40		0	67.5%
July 2025	62		0	75.8%
June 2025	60		0	85.0%
May 2025	62		0	79.0%
April 2025	60		0	93.3%
March 2025	62		0	87.1%
February 2025	56		0	91.1%
January 2025	61		1	82.0%
December 2024	62		0	85.5%
November 2024	60		0	90.0%
October 2024	16		0	93.8%

Denver (DEN) – Luis Munoz Marin (SJU)

Flights per month

Add a series to this chart

Series on this chart

On-time departures by month

Add a series to this chart

Series on this chart

Cancelled flights by month

Add a series to this chart

Series on this chart

By direction

DEN → SJU

SJU → DEN

Airlines on this route

Flight timing & delays

Departure hour

Day of week

Month of year

Recorded outcomes

Flight numbers on this route

How to read this chart