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1,082 km · Domestic

Oakland San Francisco Bay (OAK) – Seattle–Tacoma (SEA)

In July 2026, 421 flights operated between Oakland San Francisco Bay and Seattle–Tacoma (both directions), and 68.9% 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
January263290▲ 10.3%
February200273▲ 36.5%
March222241▲ 8.6%
April250238▼ 4.8%
May297247▼ 16.8%
June439373▼ 15.0%
July462421▼ 8.9%
August396––
September332––
October337–in progress
November298––
December300––
Year to date (Jan–Jul)2,1332,083▼ 2.3%

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
January82.9%82.1%▼ 1.0%
February79.0%83.2%▲ 5.3%
March80.6%73.4%▼ 8.9%
April84.0%74.8%▼ 11.0%
May78.8%76.1%▼ 3.4%
June67.7%67.8%▲ 0.1%
July66.5%68.9%▲ 3.6%
August66.7%––
September69.6%––
October74.2%–in progress
November79.9%––
December68.7%––
Year-to-date average (Jan–Jul)77.1%75.2%▼ 2.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January04–
February20▼ 100.0%
March07–
April01–
May01–
June00–
July41▼ 75.0%
August2––
September0––
October2–in progress
November8––
December2––
Year to date (Jan–Jul)614▲ 133.3%

Airlines on this route

  1. Southwest Airlines 61.2%
  2. Alaska Airlines 35.5%
  3. SkyWest Airlines 3.3%

Oct 1, 2024 – Jul 31, 2026

By direction

OAK → SEA

Scheduled flights
3,376
Flights operated
3,358
Cancelled
18 · 0.5%
On-time departures
78.5%

SEA → OAK

Scheduled flights
3,389
Flights operated
3,372
Cancelled
17 · 0.5%
On-time departures
71.2%

OAK → SEA and SEA → OAK counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 4,143 61.2% 72.2% 6
Alaska Airlines AS 2,401 35.5% 79.5% 25
SkyWest Airlines OO 221 3.3% 75.1% 4

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 delay06:00–07:00-0.7min · 875 recorded · 871 measured
Gap to highest-delay hour28.8min06:00 ↔ 19:00
Recorded flights6,765OAK–SEA

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 · 95.0% · 261 recorded · 260 measured · Source: the US BTS 06:00 · 96.8% · 875 recorded · 871 measured · Source: the US BTS 07:00 · 96.3% · 379 recorded · 375 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 98 recorded · 97 measured · Source: the US BTS 09:00 · 83.9% · 397 recorded · 397 measured · Source: the US BTS 10:00 · 80.7% · 455 recorded · 455 measured · Source: the US BTS 11:00 · 73.0% · 546 recorded · 541 measured · Source: the US BTS 12:00 · 72.6% · 441 recorded · 441 measured · Source: the US BTS 13:00 · 69.9% · 266 recorded · 266 measured · Source: the US BTS 14:00 · 70.1% · 456 recorded · 452 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 174 recorded · 173 measured · Source: the US BTS 16:00 · 65.3% · 225 recorded · 225 measured · Source: the US BTS 17:00 · 61.5% · 421 recorded · 418 measured · Source: the US BTS 18:00 · 69.2% · 381 recorded · 380 measured · Source: the US BTS 19:00 · 47.4% · 285 recorded · 285 measured · Source: the US BTS 20:00 · 56.2% · 430 recorded · 427 measured · Source: the US BTS 21:00 · 65.8% · 645 recorded · 637 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 30 recorded · 30 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 · -0.6 min · 261 recorded · 260 measured · Source: the US BTS 06:00 · -0.7 min · 875 recorded · 871 measured · Source: the US BTS 07:00 · -0.6 min · 379 recorded · 375 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 98 recorded · 97 measured · Source: the US BTS 09:00 · 6.4 min · 397 recorded · 397 measured · Source: the US BTS 10:00 · 8.9 min · 455 recorded · 455 measured · Source: the US BTS 11:00 · 11.9 min · 546 recorded · 541 measured · Source: the US BTS 12:00 · 14.8 min · 441 recorded · 441 measured · Source: the US BTS 13:00 · 13.9 min · 266 recorded · 266 measured · Source: the US BTS 14:00 · 12.4 min · 456 recorded · 452 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 174 recorded · 173 measured · Source: the US BTS 16:00 · 17.0 min · 225 recorded · 225 measured · Source: the US BTS 17:00 · 23.9 min · 421 recorded · 418 measured · Source: the US BTS 18:00 · 14.6 min · 381 recorded · 380 measured · Source: the US BTS 19:00 · 28.1 min · 285 recorded · 285 measured · Source: the US BTS 20:00 · 22.7 min · 430 recorded · 427 measured · Source: the US BTS 21:00 · 17.4 min · 645 recorded · 637 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 30 recorded · 30 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 · 261 · 261 recorded · 260 measured · Source: the US BTS 06:00 · 875 · 875 recorded · 871 measured · Source: the US BTS 07:00 · 379 · 379 recorded · 375 measured · Source: the US BTS 08:00 · 98 · 98 recorded · 97 measured · Source: the US BTS 09:00 · 397 · 397 recorded · 397 measured · Source: the US BTS 10:00 · 455 · 455 recorded · 455 measured · Source: the US BTS 11:00 · 546 · 546 recorded · 541 measured · Source: the US BTS 12:00 · 441 · 441 recorded · 441 measured · Source: the US BTS 13:00 · 266 · 266 recorded · 266 measured · Source: the US BTS 14:00 · 456 · 456 recorded · 452 measured · Source: the US BTS 15:00 · 174 · 174 recorded · 173 measured · Source: the US BTS 16:00 · 225 · 225 recorded · 225 measured · Source: the US BTS 17:00 · 421 · 421 recorded · 418 measured · Source: the US BTS 18:00 · 381 · 381 recorded · 380 measured · Source: the US BTS 19:00 · 285 · 285 recorded · 285 measured · Source: the US BTS 20:00 · 430 · 430 recorded · 427 measured · Source: the US BTS 21:00 · 645 · 645 recorded · 637 measured · Source: the US BTS 22:00 · 30 · 30 recorded · 30 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———
05:0095.0%-0.6 min260261
06:0096.8%-0.7 min871875
07:0096.3%-0.6 min375379
08:00Fewer than 200 measured departures—9798
09:0083.9%6.4 min397397
10:0080.7%8.9 min455455
11:0073.0%11.9 min541546
12:0072.6%14.8 min441441
13:0069.9%13.9 min266266
14:0070.1%12.4 min452456
15:00Fewer than 200 measured departures—173174
16:0065.3%17.0 min225225
17:0061.5%23.9 min418421
18:0069.2%14.6 min380381
19:0047.4%28.1 min285285
20:0056.2%22.7 min427430
21:0065.8%17.4 min637645
22:00Fewer than 200 measured departures—3030
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 73.8% · 1,027 recorded · 1,021 measured · Source: the US BTS Tuesday · 80.6% · 946 recorded · 937 measured · Source: the US BTS Wednesday · 80.7% · 959 recorded · 956 measured · Source: the US BTS Thursday · 70.8% · 1,011 recorded · 1,007 measured · Source: the US BTS Friday · 69.8% · 1,016 recorded · 1,011 measured · Source: the US BTS Saturday · 80.3% · 777 recorded · 775 measured · Source: the US BTS Sunday · 70.3% · 1,029 recorded · 1,023 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 · 12.9 min · 1,027 recorded · 1,021 measured · Source: the US BTS Tuesday · 7.7 min · 946 recorded · 937 measured · Source: the US BTS Wednesday · 8.1 min · 959 recorded · 956 measured · Source: the US BTS Thursday · 13.7 min · 1,011 recorded · 1,007 measured · Source: the US BTS Friday · 15.0 min · 1,016 recorded · 1,011 measured · Source: the US BTS Saturday · 9.6 min · 777 recorded · 775 measured · Source: the US BTS Sunday · 15.4 min · 1,029 recorded · 1,023 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 · 1,027 · 1,027 recorded · 1,021 measured · Source: the US BTS Tuesday · 946 · 946 recorded · 937 measured · Source: the US BTS Wednesday · 959 · 959 recorded · 956 measured · Source: the US BTS Thursday · 1,011 · 1,011 recorded · 1,007 measured · Source: the US BTS Friday · 1,016 · 1,016 recorded · 1,011 measured · Source: the US BTS Saturday · 777 · 777 recorded · 775 measured · Source: the US BTS Sunday · 1,029 · 1,029 recorded · 1,023 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.8%12.9 min1,0211,027
Tuesday80.6%7.7 min937946
Wednesday80.7%8.1 min956959
Thursday70.8%13.7 min1,0071,011
Friday69.8%15.0 min1,0111,016
Saturday80.3%9.6 min775777
Sunday70.3%15.4 min1,0231,029

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 · 82.5% · 557 recorded · 553 measured · Source: the US BTS Feb · 81.4% · 475 recorded · 473 measured · Source: the US BTS Mar · 76.9% · 470 recorded · 463 measured · Source: the US BTS Apr · 79.5% · 489 recorded · 488 measured · Source: the US BTS May · 77.6% · 545 recorded · 544 measured · Source: the US BTS Jun · 67.7% · 812 recorded · 812 measured · Source: the US BTS Jul · 67.6% · 888 recorded · 883 measured · Source: the US BTS Aug · 66.7% · 398 recorded · 396 measured · Source: the US BTS Sep · 69.6% · 332 recorded · 332 measured · Source: the US BTS Oct · 76.1% · 570 recorded · 568 measured · Source: the US BTS Nov · 83.7% · 605 recorded · 596 measured · Source: the US BTS Dec · 73.8% · 624 recorded · 622 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 · 5.8 min · 557 recorded · 553 measured · Source: the US BTS Feb · 7.1 min · 475 recorded · 473 measured · Source: the US BTS Mar · 10.6 min · 470 recorded · 463 measured · Source: the US BTS Apr · 9.7 min · 489 recorded · 488 measured · Source: the US BTS May · 8.9 min · 545 recorded · 544 measured · Source: the US BTS Jun · 18.7 min · 812 recorded · 812 measured · Source: the US BTS Jul · 17.1 min · 888 recorded · 883 measured · Source: the US BTS Aug · 19.4 min · 398 recorded · 396 measured · Source: the US BTS Sep · 11.6 min · 332 recorded · 332 measured · Source: the US BTS Oct · 9.3 min · 570 recorded · 568 measured · Source: the US BTS Nov · 5.7 min · 605 recorded · 596 measured · Source: the US BTS Dec · 13.9 min · 624 recorded · 622 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 · 557 · 557 recorded · 553 measured · Source: the US BTS Feb · 475 · 475 recorded · 473 measured · Source: the US BTS Mar · 470 · 470 recorded · 463 measured · Source: the US BTS Apr · 489 · 489 recorded · 488 measured · Source: the US BTS May · 545 · 545 recorded · 544 measured · Source: the US BTS Jun · 812 · 812 recorded · 812 measured · Source: the US BTS Jul · 888 · 888 recorded · 883 measured · Source: the US BTS Aug · 398 · 398 recorded · 396 measured · Source: the US BTS Sep · 332 · 332 recorded · 332 measured · Source: the US BTS Oct · 570 · 570 recorded · 568 measured · Source: the US BTS Nov · 605 · 605 recorded · 596 measured · Source: the US BTS Dec · 624 · 624 recorded · 622 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.5%5.8 min553557
Feb81.4%7.1 min473475
Mar76.9%10.6 min463470
Apr79.5%9.7 min488489
May77.6%8.9 min544545
Jun67.7%18.7 min812812
Jul67.6%17.1 min883888
Aug66.7%19.4 min396398
Sep69.6%11.6 min332332
Oct76.1%9.3 min568570
Nov83.7%5.7 min596605
Dec73.8%13.9 min622624

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 74.5% 5,039
  • Delayed >15 min 25.0% 1,691
  • Cancelled 0.5% 35
  • 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

67
67 of 67
Flight numbersBy direction DeparturesOn time
AS1328 SEA → OAK 299 73.0%
AS1152 SEA → OAK 291 74.0%
AS706 SEA → OAK 260 73.3%
AS1247 OAK → SEA 253 69.3%
AS705 OAK → SEA 237 93.1%
AS1151 OAK → SEA 157 97.4%
AS1125 OAK → SEA 154 95.4%
AS1240 SEA → OAK 134 73.9%
WN1479 OAK → SEA 96 89.6%
WN3199 SEA → OAK 95 89.4%
AS1359 OAK → SEA 94 71.0%
WN3786 SEA → OAK 81 75.3%
WN111 OAK → SEA 74 77.0%
OO3456 OAK → SEA 69 66.7%
OO3456 SEA → OAK 69 73.9%
WN1692 OAK → SEA 64 82.5%
WN3929 OAK → SEA 62 93.6%
WN2379 OAK → SEA 61 83.6%
WN383 OAK → SEA 61 49.2%
WN2370 SEA → OAK 60 56.7%
WN1372 SEA → OAK 58 63.8%
WN1562 SEA → OAK 58 84.5%
WN2635 SEA → OAK 58 77.6%
WN3017 SEA → OAK 58 46.6%
WN368 OAK → SEA 58 58.6%
WN736 OAK → SEA 56 87.5%
AS1464 OAK → SEA 52 59.6%
AS491 OAK → SEA 52 98.1%
AS533 SEA → OAK 52 92.3%
WN1290 OAK → SEA 52 92.3%
WN4464 SEA → OAK 52 78.9%
WN3130 OAK → SEA 51 86.3%
WN834 OAK → SEA 51 64.7%
WN1801 SEA → OAK 50 34.0%
WN3397 OAK → SEA 50 98.0%
WN4069 SEA → OAK 50 88.0%
AS733 OAK → SEA 49 81.6%
AS734 SEA → OAK 49 83.7%
WN1855 SEA → OAK 49 87.8%
WN222 OAK → SEA 49 69.4%
WN3588 SEA → OAK 49 100.0%
WN433 OAK → SEA 45 86.7%
AS1330 SEA → OAK 43 79.1%
WN980 SEA → OAK 43 39.5%
WN1252 OAK → SEA 42 97.6%
WN2890 SEA → OAK 42 24.4%
WN4391 SEA → OAK 42 64.3%
AS717 OAK → SEA 40 97.5%
WN1765 OAK → SEA 39 66.7%
WN3279 OAK → SEA 36 36.1%
WN1187 SEA → OAK 35 22.9%
AS330 OAK → SEA 34 94.1%
AS331 SEA → OAK 34 76.5%
AS374 OAK → SEA 34 63.6%
AS470 OAK → SEA 34 75.8%
WN1713 SEA → OAK 34 58.8%
AS469 SEA → OAK 33 68.8%
WN1499 OAK → SEA 33 69.7%
WN266 SEA → OAK 33 97.0%
WN285 OAK → SEA 33 93.9%
WN546 SEA → OAK 33 97.0%
WN1722 OAK → SEA 32 84.4%
WN4747 OAK → SEA 32 43.8%
WN980 OAK → SEA 32 75.0%
WN3483 SEA → OAK 31 45.2%
WN4479 OAK → SEA 31 48.4%
WN4027 OAK → SEA 30 100.0%

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 421 −8.9% 1 68.9%
June 2026 373 −15.0% 0 67.8%
May 2026 247 −16.8% 1 76.1%
April 2026 238 −4.8% 1 74.8%
March 2026 241 +8.6% 7 73.4%
February 2026 273 +36.5% 0 83.2%
January 2026 290 +10.3% 4 82.1%
December 2025 300 −6.8% 2 68.7%
November 2025 298 +0.0% 8 79.9%
October 2025 337 +45.9% 2 74.2%
September 2025 332 0 69.6%
August 2025 396 2 66.7%
July 2025 462 4 66.5%
June 2025 439 0 67.7%
May 2025 297 0 78.8%
April 2025 250 0 84.0%
March 2025 222 0 80.6%
February 2025 200 2 79.0%
January 2025 263 0 82.9%
December 2024 322 0 78.6%
November 2024 298 1 87.6%
October 2024 231 0 78.8%

How to read this chart

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