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998 km · Domestic

Tri Cities (PSC) – San Francisco (SFO)

In July 2026, 98 flights operated between Tri Cities and San Francisco (both directions), and 65.3% 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
January12498▼ 21.0%
February11191▼ 18.0%
March11670▼ 39.7%
April11860▼ 49.2%
May12083▼ 30.8%
June120115▼ 4.2%
July12298▼ 19.7%
August111––
September99––
October124–in progress
November118––
December121––
Year to date (Jan–Jul)831615▼ 26.0%

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
January88.7%88.8%▲ 0.1%
February84.7%80.2%▼ 5.3%
March87.1%87.1%0.0%
April86.4%70.0%▼ 19.0%
May89.2%57.8%▼ 35.2%
June89.2%50.4%▼ 43.5%
July86.9%65.3%▼ 24.9%
August95.5%––
September83.8%––
October87.1%–in progress
November94.9%––
December86.8%––
Year-to-date average (Jan–Jul)87.5%71.4%▼ 18.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February20▼ 100.0%
March10▼ 100.0%
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December2––
Year to date (Jan–Jul)30▼ 100.0%

By direction

PSC → SFO

Scheduled flights
1,174
Flights operated
1,173
Cancelled
1 · 0.1%
On-time departures
83.3%

SFO → PSC

Scheduled flights
1,170
Flights operated
1,165
Cancelled
5 · 0.4%
On-time departures
82.4%

PSC → SFO and SFO → PSC counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 2,344 100.0% 82.8% 6

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 delay06:00–07:001.1min · 484 recorded · 484 measured
Gap to highest-delay hour16.9min06:00 ↔ 13:00
Recorded flights2,344PSC–SFO

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 93.8% · 484 recorded · 484 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 87.9% · 489 recorded · 489 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 158 recorded · 158 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 75.4% · 513 recorded · 512 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 80 recorded · 80 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 101 recorded · 100 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 168 recorded · 165 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 173 recorded · 172 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 56 recorded · 56 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 1.1 min · 484 recorded · 484 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 4.7 min · 489 recorded · 489 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 158 recorded · 158 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 18.0 min · 513 recorded · 512 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 80 recorded · 80 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 101 recorded · 100 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 168 recorded · 165 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 173 recorded · 172 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 56 recorded · 56 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 484 · 484 recorded · 484 measured · Source: the US BTS 07:00 · 60 · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 489 · 489 recorded · 489 measured · Source: the US BTS 10:00 · 158 · 158 recorded · 158 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 513 · 513 recorded · 512 measured · Source: the US BTS 14:00 · 36 · 36 recorded · 36 measured · Source: the US BTS 15:00 · 80 · 80 recorded · 80 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 18:00 · 16 · 16 recorded · 16 measured · Source: the US BTS 19:00 · 101 · 101 recorded · 100 measured · Source: the US BTS 20:00 · 168 · 168 recorded · 165 measured · Source: the US BTS 21:00 · 173 · 173 recorded · 172 measured · Source: the US BTS 22:00 · 56 · 56 recorded · 56 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.

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———
05:00No observations———
06:0093.8%1.1 min484484
07:00Fewer than 200 measured departures—6060
08:00No observations———
09:0087.9%4.7 min489489
10:00Fewer than 200 measured departures—158158
11:00No observations———
12:00No observations———
13:0075.4%18.0 min512513
14:00Fewer than 200 measured departures—3636
15:00Fewer than 200 measured departures—8080
16:00No observations———
17:00Fewer than 200 measured departures—1010
18:00Fewer than 200 measured departures—1616
19:00Fewer than 200 measured departures—100101
20:00Fewer than 200 measured departures—165168
21:00Fewer than 200 measured departures—172173
22:00Fewer than 200 measured departures—5656
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 82.7% · 353 recorded · 352 measured · Source: the US BTS Tuesday · 86.1% · 330 recorded · 330 measured · Source: the US BTS Wednesday · 82.7% · 335 recorded · 335 measured · Source: the US BTS Thursday · 81.1% · 345 recorded · 343 measured · Source: the US BTS Friday · 80.2% · 338 recorded · 338 measured · Source: the US BTS Saturday · 86.5% · 311 recorded · 311 measured · Source: the US BTS Sunday · 81.2% · 332 recorded · 329 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 · 16.8 min · 353 recorded · 352 measured · Source: the US BTS Tuesday · 6.9 min · 330 recorded · 330 measured · Source: the US BTS Wednesday · 8.9 min · 335 recorded · 335 measured · Source: the US BTS Thursday · 12.4 min · 345 recorded · 343 measured · Source: the US BTS Friday · 12.2 min · 338 recorded · 338 measured · Source: the US BTS Saturday · 12.7 min · 311 recorded · 311 measured · Source: the US BTS Sunday · 9.9 min · 332 recorded · 329 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 · 353 · 353 recorded · 352 measured · Source: the US BTS Tuesday · 330 · 330 recorded · 330 measured · Source: the US BTS Wednesday · 335 · 335 recorded · 335 measured · Source: the US BTS Thursday · 345 · 345 recorded · 343 measured · Source: the US BTS Friday · 338 · 338 recorded · 338 measured · Source: the US BTS Saturday · 311 · 311 recorded · 311 measured · Source: the US BTS Sunday · 332 · 332 recorded · 329 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday82.7%16.8 min352353
Tuesday86.1%6.9 min330330
Wednesday82.7%8.9 min335335
Thursday81.1%12.4 min343345
Friday80.2%12.2 min338338
Saturday86.5%12.7 min311311
Sunday81.2%9.9 min329332

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 · 88.7% · 222 recorded · 222 measured · Source: the US BTS Feb · 82.7% · 204 recorded · 202 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 187 recorded · 186 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS May · 76.4% · 203 recorded · 203 measured · Source: the US BTS Jun · 70.2% · 235 recorded · 235 measured · Source: the US BTS Jul · 77.3% · 220 recorded · 220 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 111 recorded · 111 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS Oct · 86.8% · 204 recorded · 204 measured · Source: the US BTS Nov · 87.7% · 236 recorded · 235 measured · Source: the US BTS Dec · 84.4% · 245 recorded · 243 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 · 6.0 min · 222 recorded · 222 measured · Source: the US BTS Feb · 10.4 min · 204 recorded · 202 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 187 recorded · 186 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS May · 18.3 min · 203 recorded · 203 measured · Source: the US BTS Jun · 37.4 min · 235 recorded · 235 measured · Source: the US BTS Jul · 9.3 min · 220 recorded · 220 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 111 recorded · 111 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS Oct · 4.0 min · 204 recorded · 204 measured · Source: the US BTS Nov · 3.2 min · 236 recorded · 235 measured · Source: the US BTS Dec · 9.7 min · 245 recorded · 243 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 · 222 · 222 recorded · 222 measured · Source: the US BTS Feb · 204 · 204 recorded · 202 measured · Source: the US BTS Mar · 187 · 187 recorded · 186 measured · Source: the US BTS Apr · 178 · 178 recorded · 178 measured · Source: the US BTS May · 203 · 203 recorded · 203 measured · Source: the US BTS Jun · 235 · 235 recorded · 235 measured · Source: the US BTS Jul · 220 · 220 recorded · 220 measured · Source: the US BTS Aug · 111 · 111 recorded · 111 measured · Source: the US BTS Sep · 99 · 99 recorded · 99 measured · Source: the US BTS Oct · 204 · 204 recorded · 204 measured · Source: the US BTS Nov · 236 · 236 recorded · 235 measured · Source: the US BTS Dec · 245 · 245 recorded · 243 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan88.7%6.0 min222222
Feb82.7%10.4 min202204
MarFewer than 200 measured departures—186187
AprFewer than 200 measured departures—178178
May76.4%18.3 min203203
Jun70.2%37.4 min235235
Jul77.3%9.3 min220220
AugFewer than 200 measured departures—111111
SepFewer than 200 measured departures—9999
Oct86.8%4.0 min204204
Nov87.7%3.2 min235236
Dec84.4%9.7 min243245

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 82.6% 1,937
  • Delayed >15 min 17.1% 401
  • Cancelled 0.3% 6
  • 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

12
12 of 12
Flight numbersBy direction DeparturesOn time
OO5491 SFO → PSC 577 84.6%
OO5811 PSC → SFO 449 95.3%
OO5594 PSC → SFO 369 81.6%
OO5578 PSC → SFO 260 73.8%
OO5669 SFO → PSC 208 84.9%
OO5932 SFO → PSC 177 85.3%
OO6046 PSC → SFO 56 30.4%
OO6044 SFO → PSC 55 38.2%
OO5539 SFO → PSC 51 84.0%
OO4717 SFO → PSC 37 97.3%
OO4744 PSC → SFO 37 100.0%
OO5391 SFO → PSC 32 75.0%

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 98 −19.7% 0 65.3%
June 2026 115 −4.2% 0 50.4%
May 2026 83 −30.8% 0 57.8%
April 2026 60 −49.2% 0 70.0%
March 2026 70 −39.7% 0 87.1%
February 2026 91 −18.0% 0 80.2%
January 2026 98 −21.0% 0 88.8%
December 2025 121 −0.8% 2 86.8%
November 2025 118 +0.9% 0 94.9%
October 2025 124 +55.0% 0 87.1%
September 2025 99 0 83.8%
August 2025 111 0 95.5%
July 2025 122 0 86.9%
June 2025 120 0 89.2%
May 2025 120 0 89.2%
April 2025 118 0 86.4%
March 2025 116 1 87.1%
February 2025 111 2 84.7%
January 2025 124 0 88.7%
December 2024 122 0 82.0%
November 2024 117 1 80.3%
October 2024 80 0 86.3%

How to read this chart

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