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1,537 km · Domestic

Denver (DEN) – Oakland San Francisco Bay (OAK)

In July 2026, 306 flights operated between Denver and Oakland San Francisco Bay (both directions), and 55.2% left on time, according to the US BTS.

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

Flights per month

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

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January252243▼ 3.6%
February239224▼ 6.3%
March283244▼ 13.8%
April300245▼ 18.3%
May314255▼ 18.8%
June308294▼ 4.5%
July314306▼ 2.5%
August284––
September275––
October297–in progress
November253––
December272––
Year to date (Jan–Jul)2,0101,811▼ 9.9%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January75.8%81.5%▲ 7.5%
February77.0%72.8%▼ 5.5%
March81.6%59.4%▼ 27.2%
April69.7%66.9%▼ 4.0%
May65.6%58.4%▼ 11.0%
June57.5%53.7%▼ 6.6%
July62.7%55.2%▼ 12.0%
August64.1%––
September67.3%––
October67.7%–in progress
November74.7%––
December59.6%––
Year-to-date average (Jan–Jul)70.0%64.0%▼ 8.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February10▼ 100.0%
March03–
April01–
May110.0%
June20▼ 100.0%
July42▼ 50.0%
August0––
September0––
October0–in progress
November6––
December2––
Year to date (Jan–Jul)87▼ 12.5%

By direction

DEN → OAK

Scheduled flights
2,989
Flights operated
2,973
Cancelled
16 · 0.5%
On-time departures
62.6%

OAK → DEN

Scheduled flights
2,985
Flights operated
2,978
Cancelled
7 · 0.2%
On-time departures
73.9%

DEN → OAK and OAK → DEN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 5,974 100.0% 68.3% 23

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 delay05:00–06:002.1min · 452 recorded · 452 measured
Gap to highest-delay hour34.7min05:00 ↔ 22:00
Recorded flights5,974DEN–OAK

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 93.8% · 452 recorded · 452 measured · Source: the US BTS 06:00 · 95.3% · 320 recorded · 318 measured · Source: the US BTS 07:00 · 89.2% · 260 recorded · 259 measured · Source: the US BTS 08:00 · 90.0% · 609 recorded · 609 measured · Source: the US BTS 09:00 · 82.9% · 357 recorded · 357 measured · Source: the US BTS 10:00 · 73.7% · 209 recorded · 209 measured · Source: the US BTS 11:00 · 69.7% · 236 recorded · 234 measured · Source: the US BTS 12:00 · 69.4% · 315 recorded · 314 measured · Source: the US BTS 13:00 · 64.8% · 474 recorded · 471 measured · Source: the US BTS 14:00 · 48.6% · 405 recorded · 403 measured · Source: the US BTS 15:00 · 60.9% · 358 recorded · 358 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 176 recorded · 174 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 195 recorded · 195 measured · Source: the US BTS 18:00 · 59.4% · 322 recorded · 318 measured · Source: the US BTS 19:00 · 48.0% · 459 recorded · 458 measured · Source: the US BTS 20:00 · 54.1% · 443 recorded · 440 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 167 recorded · 166 measured · Source: the US BTS 22:00 · 41.7% · 217 recorded · 216 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 2.1 min · 452 recorded · 452 measured · Source: the US BTS 06:00 · 2.4 min · 320 recorded · 318 measured · Source: the US BTS 07:00 · 4.2 min · 260 recorded · 259 measured · Source: the US BTS 08:00 · 6.2 min · 609 recorded · 609 measured · Source: the US BTS 09:00 · 8.6 min · 357 recorded · 357 measured · Source: the US BTS 10:00 · 14.1 min · 209 recorded · 209 measured · Source: the US BTS 11:00 · 15.5 min · 236 recorded · 234 measured · Source: the US BTS 12:00 · 14.3 min · 315 recorded · 314 measured · Source: the US BTS 13:00 · 17.9 min · 474 recorded · 471 measured · Source: the US BTS 14:00 · 25.5 min · 405 recorded · 403 measured · Source: the US BTS 15:00 · 21.2 min · 358 recorded · 358 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 176 recorded · 174 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 195 recorded · 195 measured · Source: the US BTS 18:00 · 25.9 min · 322 recorded · 318 measured · Source: the US BTS 19:00 · 32.1 min · 459 recorded · 458 measured · Source: the US BTS 20:00 · 23.4 min · 443 recorded · 440 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 167 recorded · 166 measured · Source: the US BTS 22:00 · 36.8 min · 217 recorded · 216 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 452 · 452 recorded · 452 measured · Source: the US BTS 06:00 · 320 · 320 recorded · 318 measured · Source: the US BTS 07:00 · 260 · 260 recorded · 259 measured · Source: the US BTS 08:00 · 609 · 609 recorded · 609 measured · Source: the US BTS 09:00 · 357 · 357 recorded · 357 measured · Source: the US BTS 10:00 · 209 · 209 recorded · 209 measured · Source: the US BTS 11:00 · 236 · 236 recorded · 234 measured · Source: the US BTS 12:00 · 315 · 315 recorded · 314 measured · Source: the US BTS 13:00 · 474 · 474 recorded · 471 measured · Source: the US BTS 14:00 · 405 · 405 recorded · 403 measured · Source: the US BTS 15:00 · 358 · 358 recorded · 358 measured · Source: the US BTS 16:00 · 176 · 176 recorded · 174 measured · Source: the US BTS 17:00 · 195 · 195 recorded · 195 measured · Source: the US BTS 18:00 · 322 · 322 recorded · 318 measured · Source: the US BTS 19:00 · 459 · 459 recorded · 458 measured · Source: the US BTS 20:00 · 443 · 443 recorded · 440 measured · Source: the US BTS 21:00 · 167 · 167 recorded · 166 measured · Source: the US BTS 22:00 · 217 · 217 recorded · 216 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0093.8%2.1 min452452
06:0095.3%2.4 min318320
07:0089.2%4.2 min259260
08:0090.0%6.2 min609609
09:0082.9%8.6 min357357
10:0073.7%14.1 min209209
11:0069.7%15.5 min234236
12:0069.4%14.3 min314315
13:0064.8%17.9 min471474
14:0048.6%25.5 min403405
15:0060.9%21.2 min358358
16:00Fewer than 200 measured departures—174176
17:00Fewer than 200 measured departures—195195
18:0059.4%25.9 min318322
19:0048.0%32.1 min458459
20:0054.1%23.4 min440443
21:00Fewer than 200 measured departures—166167
22:0041.7%36.8 min216217
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 66.0% · 863 recorded · 859 measured · Source: the US BTS Tuesday · 71.0% · 822 recorded · 818 measured · Source: the US BTS Wednesday · 72.2% · 818 recorded · 816 measured · Source: the US BTS Thursday · 65.2% · 856 recorded · 850 measured · Source: the US BTS Friday · 66.2% · 872 recorded · 870 measured · Source: the US BTS Saturday · 72.2% · 824 recorded · 821 measured · Source: the US BTS Sunday · 65.9% · 919 recorded · 917 measured · Source: the US BTS

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
Monday · 18.3 min · 863 recorded · 859 measured · Source: the US BTS Tuesday · 16.8 min · 822 recorded · 818 measured · Source: the US BTS Wednesday · 15.1 min · 818 recorded · 816 measured · Source: the US BTS Thursday · 20.1 min · 856 recorded · 850 measured · Source: the US BTS Friday · 18.7 min · 872 recorded · 870 measured · Source: the US BTS Saturday · 13.3 min · 824 recorded · 821 measured · Source: the US BTS Sunday · 18.6 min · 919 recorded · 917 measured · Source: the US BTS

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
Monday · 863 · 863 recorded · 859 measured · Source: the US BTS Tuesday · 822 · 822 recorded · 818 measured · Source: the US BTS Wednesday · 818 · 818 recorded · 816 measured · Source: the US BTS Thursday · 856 · 856 recorded · 850 measured · Source: the US BTS Friday · 872 · 872 recorded · 870 measured · Source: the US BTS Saturday · 824 · 824 recorded · 821 measured · Source: the US BTS Sunday · 919 · 919 recorded · 917 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday66.0%18.3 min859863
Tuesday71.0%16.8 min818822
Wednesday72.2%15.1 min816818
Thursday65.2%20.1 min850856
Friday66.2%18.7 min870872
Saturday72.2%13.3 min821824
Sunday65.9%18.6 min917919

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
Jan · 78.6% · 495 recorded · 495 measured · Source: the US BTS Feb · 75.0% · 464 recorded · 463 measured · Source: the US BTS Mar · 71.4% · 530 recorded · 527 measured · Source: the US BTS Apr · 68.4% · 546 recorded · 545 measured · Source: the US BTS May · 62.4% · 571 recorded · 569 measured · Source: the US BTS Jun · 55.7% · 604 recorded · 602 measured · Source: the US BTS Jul · 59.0% · 626 recorded · 620 measured · Source: the US BTS Aug · 64.1% · 284 recorded · 284 measured · Source: the US BTS Sep · 67.3% · 275 recorded · 275 measured · Source: the US BTS Oct · 74.9% · 489 recorded · 489 measured · Source: the US BTS Nov · 80.1% · 534 recorded · 528 measured · Source: the US BTS Dec · 66.3% · 556 recorded · 554 measured · Source: the US BTS

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
Jan · 9.1 min · 495 recorded · 495 measured · Source: the US BTS Feb · 14.1 min · 464 recorded · 463 measured · Source: the US BTS Mar · 15.6 min · 530 recorded · 527 measured · Source: the US BTS Apr · 17.1 min · 546 recorded · 545 measured · Source: the US BTS May · 22.2 min · 571 recorded · 569 measured · Source: the US BTS Jun · 25.3 min · 604 recorded · 602 measured · Source: the US BTS Jul · 26.0 min · 626 recorded · 620 measured · Source: the US BTS Aug · 21.1 min · 284 recorded · 284 measured · Source: the US BTS Sep · 16.1 min · 275 recorded · 275 measured · Source: the US BTS Oct · 11.7 min · 489 recorded · 489 measured · Source: the US BTS Nov · 9.4 min · 534 recorded · 528 measured · Source: the US BTS Dec · 17.0 min · 556 recorded · 554 measured · Source: the US BTS

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
Jan · 495 · 495 recorded · 495 measured · Source: the US BTS Feb · 464 · 464 recorded · 463 measured · Source: the US BTS Mar · 530 · 530 recorded · 527 measured · Source: the US BTS Apr · 546 · 546 recorded · 545 measured · Source: the US BTS May · 571 · 571 recorded · 569 measured · Source: the US BTS Jun · 604 · 604 recorded · 602 measured · Source: the US BTS Jul · 626 · 626 recorded · 620 measured · Source: the US BTS Aug · 284 · 284 recorded · 284 measured · Source: the US BTS Sep · 275 · 275 recorded · 275 measured · Source: the US BTS Oct · 489 · 489 recorded · 489 measured · Source: the US BTS Nov · 534 · 534 recorded · 528 measured · Source: the US BTS Dec · 556 · 556 recorded · 554 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan78.6%9.1 min495495
Feb75.0%14.1 min463464
Mar71.4%15.6 min527530
Apr68.4%17.1 min545546
May62.4%22.2 min569571
Jun55.7%25.3 min602604
Jul59.0%26.0 min620626
Aug64.1%21.1 min284284
Sep67.3%16.1 min275275
Oct74.9%11.7 min489489
Nov80.1%9.4 min528534
Dec66.3%17.0 min554556

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 68.0% 4,064
  • Delayed >15 min 31.6% 1,887
  • Cancelled 0.4% 23
  • 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

79
79 of 79
Flight numbersBy direction DeparturesOn time
WN1869 DEN → OAK 101 80.2%
WN5109 OAK → DEN 95 79.0%
WN157 OAK → DEN 91 97.8%
WN1899 DEN → OAK 91 75.6%
WN4222 OAK → DEN 65 76.9%
WN2068 OAK → DEN 64 74.2%
WN3529 DEN → OAK 63 69.8%
WN3449 DEN → OAK 62 56.5%
WN1201 OAK → DEN 61 67.2%
WN1871 OAK → DEN 61 96.7%
WN3254 OAK → DEN 60 54.2%
WN1063 OAK → DEN 58 94.8%
WN1240 DEN → OAK 58 91.2%
WN1444 DEN → OAK 58 55.2%
WN1966 DEN → OAK 58 84.5%
WN1969 DEN → OAK 58 41.4%
WN2013 OAK → DEN 58 86.2%
WN2511 OAK → DEN 58 51.7%
WN2558 DEN → OAK 58 89.7%
WN2661 DEN → OAK 58 81.0%
WN2998 DEN → OAK 58 74.1%
WN3041 OAK → DEN 58 82.8%
WN3043 OAK → DEN 58 41.4%
WN3533 OAK → DEN 58 68.4%
WN3560 DEN → OAK 58 43.1%
WN4265 DEN → OAK 58 65.5%
WN4605 OAK → DEN 58 62.1%
WN1543 DEN → OAK 57 94.7%
WN1843 DEN → OAK 57 24.6%
WN2399 OAK → DEN 57 73.7%
WN2432 DEN → OAK 57 54.4%
WN2562 DEN → OAK 57 56.1%
WN2563 DEN → OAK 57 49.1%
WN3042 OAK → DEN 57 94.7%
WN4169 OAK → DEN 57 96.5%
WN868 OAK → DEN 57 91.2%
WN2917 OAK → DEN 54 75.9%
WN2709 DEN → OAK 52 32.7%
WN4702 DEN → OAK 51 62.8%
WN1577 DEN → OAK 50 56.0%
WN3044 OAK → DEN 50 28.0%
WN1643 OAK → DEN 49 61.2%
WN444 DEN → OAK 49 83.7%
WN3949 DEN → OAK 48 75.0%
WN1987 DEN → OAK 47 80.9%
WN2697 OAK → DEN 47 89.4%
WN152 DEN → OAK 46 45.7%
WN2552 DEN → OAK 46 84.4%
WN2918 OAK → DEN 46 84.8%
WN1879 DEN → OAK 45 59.5%
WN2652 OAK → DEN 44 97.7%
WN1497 DEN → OAK 43 65.1%
WN2753 DEN → OAK 43 79.1%
WN734 OAK → DEN 43 57.1%
WN2418 OAK → DEN 42 52.4%
WN492 DEN → OAK 42 39.0%
WN1650 DEN → OAK 41 19.5%
WN2557 DEN → OAK 36 34.3%
WN2647 DEN → OAK 36 30.6%
WN827 DEN → OAK 36 69.4%
WN1268 OAK → DEN 34 61.8%
WN3704 DEN → OAK 34 14.7%
WN409 OAK → DEN 34 91.2%
WN2587 DEN → OAK 33 93.9%
WN2589 OAK → DEN 33 36.4%
WN2595 OAK → DEN 33 96.9%
WN2920 DEN → OAK 33 37.5%
WN3769 OAK → DEN 33 90.9%
WN508 OAK → DEN 33 33.3%
WN1518 DEN → OAK 32 43.8%
WN1933 OAK → DEN 32 46.9%
WN2218 DEN → OAK 32 59.4%
WN3790 OAK → DEN 32 25.0%
WN2564 DEN → OAK 31 48.4%
WN2584 OAK → DEN 31 96.8%
WN3992 OAK → DEN 31 41.9%
WN951 DEN → OAK 31 45.2%
WN1220 OAK → DEN 30 50.0%
WN2592 DEN → OAK 30 70.0%

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
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 306 −2.5% 2 55.2%
June 2026 294 −4.5% 0 53.7%
May 2026 255 −18.8% 1 58.4%
April 2026 245 −18.3% 1 66.9%
March 2026 244 −13.8% 3 59.4%
February 2026 224 −6.3% 0 72.8%
January 2026 243 −3.6% 0 81.5%
December 2025 272 −3.5% 2 59.6%
November 2025 253 −8.0% 6 74.7%
October 2025 297 +54.7% 0 67.7%
September 2025 275 0 67.3%
August 2025 284 0 64.1%
July 2025 314 4 62.7%
June 2025 308 2 57.5%
May 2025 314 1 65.6%
April 2025 300 0 69.7%
March 2025 283 0 81.6%
February 2025 239 1 77.0%
January 2025 252 0 75.8%
December 2024 282 0 72.7%
November 2024 275 0 85.1%
October 2024 192 0 85.9%

How to read this chart

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