Aviation Data
EN
EnglishTiếng Việt

945 km · Domestic

San Francisco (SFO) – Friedman Memorial (SUN)

In July 2026, 70 flights operated between San Francisco and Friedman Memorial (both directions), and 57.1% 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 periods18 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January8385▲ 2.4%
February7174▲ 4.2%
March7779▲ 2.6%
April214▲ 600.0%
May1319▲ 46.2%
June3062▲ 106.7%
July6870▲ 2.9%
August68––
September27––
October22–in progress
November–––
December65––
Year to date (Jan–Jul)344403▲ 17.2%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods18 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January81.9%84.7%▲ 3.4%
February80.3%73.0%▼ 9.1%
March81.8%94.9%▲ 16.0%
April100.0%85.7%▼ 14.3%
May61.5%68.4%▲ 11.2%
June76.7%54.8%▼ 28.6%
July64.7%57.1%▼ 11.7%
August86.8%––
September88.9%––
October86.4%–in progress
November–––
December66.2%––
Year-to-date average (Jan–Jul)78.1%74.1%▼ 5.2%

Cancelled flights by month

The most recent periods18 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January20▼ 100.0%
February10▼ 100.0%
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November–––
December1––
Year to date (Jan–Jul)30▼ 100.0%

By direction

SFO → SUN

Scheduled flights
503
Flights operated
500
Cancelled
3 · 0.6%
On-time departures
85.4%

SUN → SFO

Scheduled flights
502
Flights operated
499
Cancelled
3 · 0.6%
On-time departures
67.3%

SFO → SUN and SUN → SFO counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 1,005 100.0% 76.4% 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 delay18:00–19:0011.4min · 230 recorded · 228 measured
Gap to highest-delay hour13.1min18:00 ↔ 08:00
Recorded flights1,005SFO–SUN

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 08:00 · 64.8% · 245 recorded · 244 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 108 recorded · 107 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 44 recorded · 42 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 32 recorded · 32 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 84.7% · 230 recorded · 228 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 08:00 · 24.5 min · 245 recorded · 244 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 108 recorded · 107 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 44 recorded · 42 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 32 recorded · 32 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 74 recorded · 74 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 11.4 min · 230 recorded · 228 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 14 recorded · 14 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 40 · 40 recorded · 40 measured · Source: the US BTS 08:00 · 245 · 245 recorded · 244 measured · Source: the US BTS 09:00 · 108 · 108 recorded · 107 measured · Source: the US BTS 10:00 · 116 · 116 recorded · 116 measured · Source: the US BTS 11:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 44 · 44 recorded · 42 measured · Source: the US BTS 14:00 · 90 · 90 recorded · 90 measured · Source: the US BTS 15:00 · 32 · 32 recorded · 32 measured · Source: the US BTS 16:00 · 74 · 74 recorded · 74 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 230 · 230 recorded · 228 measured · Source: the US BTS 19:00 · 14 · 14 recorded · 14 measured · Source: the US BTS 20:00 · 7 · 7 recorded · 7 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 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———
06:00No observations———
07:00Fewer than 200 measured departures—4040
08:0064.8%24.5 min244245
09:00Fewer than 200 measured departures—107108
10:00Fewer than 200 measured departures—116116
11:00Fewer than 200 measured departures—55
12:00No observations———
13:00Fewer than 200 measured departures—4244
14:00Fewer than 200 measured departures—9090
15:00Fewer than 200 measured departures—3232
16:00Fewer than 200 measured departures—7474
17:00No observations———
18:0084.7%11.4 min228230
19:00Fewer than 200 measured departures—1414
20:00Fewer than 200 measured departures—77
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · Fewer than 200 measured departures · 115 recorded · 113 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 106 recorded · 106 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 129 recorded · 129 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 173 recorded · 171 measured · Source: the US BTS Saturday · 82.7% · 220 recorded · 219 measured · Source: the US BTS Sunday · Fewer than 200 measured departures · 159 recorded · 158 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 · Fewer than 200 measured departures · 115 recorded · 113 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 106 recorded · 106 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 129 recorded · 129 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 173 recorded · 171 measured · Source: the US BTS Saturday · 12.0 min · 220 recorded · 219 measured · Source: the US BTS Sunday · Fewer than 200 measured departures · 159 recorded · 158 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 · 115 · 115 recorded · 113 measured · Source: the US BTS Tuesday · 106 · 106 recorded · 106 measured · Source: the US BTS Wednesday · 103 · 103 recorded · 103 measured · Source: the US BTS Thursday · 129 · 129 recorded · 129 measured · Source: the US BTS Friday · 173 · 173 recorded · 171 measured · Source: the US BTS Saturday · 220 · 220 recorded · 219 measured · Source: the US BTS Sunday · 159 · 159 recorded · 158 measured · Source: the US BTS

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

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—113115
TuesdayFewer than 200 measured departures—106106
WednesdayFewer than 200 measured departures—103103
ThursdayFewer than 200 measured departures—129129
FridayFewer than 200 measured departures—171173
Saturday82.7%12.0 min219220
SundayFewer than 200 measured departures—158159

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
Jan · 170 · 170 recorded · 168 measured · Source: the US BTS Feb · 146 · 146 recorded · 145 measured · Source: the US BTS Mar · 156 · 156 recorded · 156 measured · Source: the US BTS Apr · 16 · 16 recorded · 16 measured · Source: the US BTS May · 32 · 32 recorded · 32 measured · Source: the US BTS Jun · 92 · 92 recorded · 92 measured · Source: the US BTS Jul · 138 · 138 recorded · 138 measured · Source: the US BTS Aug · 68 · 68 recorded · 68 measured · Source: the US BTS Sep · 27 · 27 recorded · 27 measured · Source: the US BTS Oct · 32 · 32 recorded · 32 measured · Source: the US BTS Nov · No observations · 0 recorded · 0 measured · Source: the US BTS Dec · 128 · 128 recorded · 125 measured · Source: the US BTS

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 yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—168170
FebFewer than 200 measured departures—145146
MarFewer than 200 measured departures—156156
AprFewer than 200 measured departures—1616
MayFewer than 200 measured departures—3232
JunFewer than 200 measured departures—9292
JulFewer than 200 measured departures—138138
AugFewer than 200 measured departures—6868
SepFewer than 200 measured departures—2727
OctFewer than 200 measured departures—3232
NovNo observations———
DecFewer than 200 measured departures—125128

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 75.9% 763
  • Delayed >15 min 23.5% 236
  • Cancelled 0.6% 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

10
10 of 10
Flight numbersBy direction DeparturesOn time
OO5423 SUN → SFO 228 57.5%
OO5983 SFO → SUN 143 86.6%
OO5903 SUN → SFO 116 73.7%
OO5751 SFO → SUN 97 83.5%
OO4788 SUN → SFO 84 75.0%
OO5893 SFO → SUN 71 84.3%
OO5986 SFO → SUN 70 77.1%
OO5457 SFO → SUN 37 94.6%
OO5448 SFO → SUN 32 90.3%
OO5833 SUN → SFO 30 65.5%

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 70 +2.9% 0 57.1%
June 2026 62 +106.7% 0 54.8%
May 2026 19 +46.2% 0 68.4%
April 2026 14 +600.0% 0 85.7%
March 2026 79 +2.6% 0 94.9%
February 2026 74 +4.2% 0 73.0%
January 2026 85 +2.4% 0 84.7%
December 2025 65 +8.3% 1 66.2%
October 2025 22 +120.0% 0 86.4%
September 2025 27 0 88.9%
August 2025 68 0 86.8%
July 2025 68 0 64.7%
June 2025 30 0 76.7%
May 2025 13 0 61.5%
April 2025 2 0 100.0%
March 2025 77 0 81.8%
February 2025 71 1 80.3%
January 2025 83 2 81.9%
December 2024 60 2 73.3%
October 2024 10 0 90.0%

How to read this chart

Loading the guide…