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1,373 km · Domestic

Denver (DEN) – Long Beach (LGB)

In July 2026, 181 flights operated between Denver and Long Beach (both directions), and 66.9% left on time, according to the US BTS.

Flights operated · latest month181▼ 5.2%vs July 2025
On-time departures76.1%Average delay 12.4 min
Cancelled0.5%19 of 3,650 scheduled flights
Airlines1
Rank in country#1,145

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	139	134	▼ 3.6%
February	140	132	▼ 5.7%
March	189	182	▼ 3.7%
April	171	180	▲ 5.3%
May	180	186	▲ 3.3%
June	182	179	▼ 1.6%
July	191	181	▼ 5.2%
August	178	–	–
September	172	–	–
October	159	–	in progress
November	162	–	–
December	160	–	–
Year to date (Jan–Jul)	1,192	1,174	▼ 1.5%

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	89.9%	87.3%	▼ 2.9%
February	80.7%	75.8%	▼ 6.1%
March	85.2%	70.9%	▼ 16.8%
April	77.8%	83.3%	▲ 7.1%
May	71.7%	82.8%	▲ 15.5%
June	65.4%	59.8%	▼ 8.6%
July	68.6%	66.9%	▼ 2.5%
August	80.9%	–	–
September	78.5%	–	–
October	69.2%	–	in progress
November	72.8%	–	–
December	64.4%	–	–
Year-to-date average (Jan–Jul)	77.0%	75.3%	▼ 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	0	▼ 100.0%
February	0	0	–
March	1	0	▼ 100.0%
April	1	0	▼ 100.0%
May	0	0	–
June	2	1	▼ 50.0%
July	3	3	0.0%
August	0	–	–
September	0	–	–
October	1	–	in progress
November	0	–	–
December	2	–	–
Year to date (Jan–Jul)	8	4	▼ 50.0%

By direction

DEN → LGB

Scheduled flights: 1,824
Flights operated: 1,813
Cancelled: 11 · 0.6%
On-time departures: 72.0%

LGB → DEN

Scheduled flights: 1,826
Flights operated: 1,818
Cancelled: 8 · 0.4%
On-time departures: 80.2%

DEN → LGB and LGB → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026

Airline	Scheduled flights	Share	On-time departures	Cancelled
Southwest Airlines WN	3,650	100.0%	76.1%	19

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 delay06:00–07:001.4min · 316 recorded · 316 measured

Gap to highest-delay hour30.7min06:00 ↔ 15:00

Recorded flights3,650DEN–LGB

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	93.0%	1.4 min	316	316
07:00	91.2%	2.2 min	307	309
08:00	88.8%	4.7 min	412	413
09:00	91.4%	3.2 min	350	350
10:00	Fewer than 200 measured departures	—	176	177
11:00	Fewer than 200 measured departures	—	175	176
12:00	Fewer than 200 measured departures	—	83	84
13:00	76.2%	13.0 min	383	385
14:00	66.4%	17.6 min	381	382
15:00	52.0%	32.1 min	221	222
16:00	Fewer than 200 measured departures	—	199	200
17:00	Fewer than 200 measured departures	—	110	112
18:00	48.8%	27.0 min	346	350
19:00	Fewer than 200 measured departures	—	172	174
20:00	No observations	—	—	—
21:00	No observations	—	—	—
22:00	No observations	—	—	—
23:00	No observations	—	—	—

Day of week

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

Day of week	On-time departures	Average departure delay	With departure time	Recorded flights
Monday	72.5%	13.6 min	520	520
Tuesday	79.2%	12.0 min	471	474
Wednesday	78.5%	9.9 min	469	472
Thursday	74.3%	13.5 min	518	520
Friday	73.6%	16.5 min	527	536
Saturday	78.7%	9.7 min	587	588
Sunday	76.1%	11.3 min	539	540

Month of year

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

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

Month of year	On-time departures	Average departure delay	With departure time	Recorded flights
Jan	88.6%	3.1 min	273	274
Feb	78.3%	9.5 min	272	272
Mar	78.2%	8.7 min	371	372
Apr	80.6%	10.0 min	351	352
May	77.3%	12.8 min	366	366
Jun	62.6%	19.9 min	361	364
Jul	67.7%	21.1 min	372	378
Aug	Fewer than 200 measured departures	—	178	178
Sep	Fewer than 200 measured departures	—	172	172
Oct	76.8%	7.7 min	271	272
Nov	79.8%	7.8 min	322	326
Dec	71.4%	16.1 min	322	324

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 75.7% 2,763
Delayed >15 min 23.8% 868
Cancelled 0.5% 19
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

47

47 of 47

Flight numbers	By direction	Departures	On time
WN696	DEN → LGB	122	85.3%
WN3470	LGB → DEN	114	69.3%
WN3706	DEN → LGB	104	84.5%
WN3469	LGB → DEN	93	80.7%
WN1376	LGB → DEN	86	88.2%
WN1457	LGB → DEN	75	82.7%
WN2059	DEN → LGB	64	44.4%
WN3077	DEN → LGB	60	34.5%
WN1921	DEN → LGB	58	74.1%
WN1983	DEN → LGB	58	93.1%
WN2434	LGB → DEN	58	94.8%
WN2551	LGB → DEN	58	52.6%
WN3388	DEN → LGB	58	94.8%
WN786	DEN → LGB	58	48.3%
WN2506	DEN → LGB	57	54.4%
WN2993	DEN → LGB	57	79.0%
WN3255	LGB → DEN	57	93.0%
WN4238	LGB → DEN	57	84.2%
WN4259	DEN → LGB	57	35.1%
WN4966	LGB → DEN	55	94.6%
WN2010	LGB → DEN	52	65.4%
WN714	LGB → DEN	52	56.9%
WN2131	LGB → DEN	50	86.0%
WN2948	LGB → DEN	50	98.0%
WN1925	LGB → DEN	46	82.6%
WN2589	DEN → LGB	43	88.1%
WN185	DEN → LGB	42	97.6%
WN2251	DEN → LGB	42	78.6%
WN3833	LGB → DEN	40	62.5%
WN3406	LGB → DEN	35	85.3%
WN1037	DEN → LGB	34	35.3%
WN1364	LGB → DEN	34	88.2%
WN1580	DEN → LGB	34	70.6%
WN2943	DEN → LGB	34	88.2%
WN4574	LGB → DEN	34	100.0%
WN1329	LGB → DEN	33	81.3%
WN1665	DEN → LGB	33	69.7%
WN2013	LGB → DEN	33	51.5%
WN2105	LGB → DEN	33	78.8%
WN2479	LGB → DEN	33	42.4%
WN4448	DEN → LGB	33	48.5%
WN4677	DEN → LGB	33	78.8%
WN4705	DEN → LGB	33	93.9%
WN3117	LGB → DEN	31	93.6%
WN3614	DEN → LGB	31	67.7%
WN1699	DEN → LGB	30	96.7%
WN2844	DEN → LGB	30	76.7%

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	181	−5.2%	3	66.9%
June 2026	179	−1.6%	1	59.8%
May 2026	186	+3.3%	0	82.8%
April 2026	180	+5.3%	0	83.3%
March 2026	182	−3.7%	0	70.9%
February 2026	132	−5.7%	0	75.8%
January 2026	134	−3.6%	0	87.3%
December 2025	160	−1.2%	2	64.4%
November 2025	162	+1.2%	0	72.8%
October 2025	159	+42.0%	1	69.2%
September 2025	172		0	78.5%
August 2025	178		0	80.9%
July 2025	191		3	68.6%
June 2025	182		2	65.4%
May 2025	180		0	71.7%
April 2025	171		1	77.8%
March 2025	189		1	85.2%
February 2025	140		0	80.7%
January 2025	139		1	89.9%
December 2024	162		0	78.4%
November 2024	160		4	86.9%
October 2024	112		0	87.5%