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2,695 km · Domestic

Sacramento (SMF) – St. Louis Lambert (STL)

In July 2026, 62 flights operated between Sacramento and St. Louis Lambert (both directions), and 71.0% 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
January20200.0%
February3436▲ 5.9%
March58580.0%
April60600.0%
May62620.0%
June60600.0%
July62620.0%
August62––
September60––
October62–in progress
November58––
December62––
Year to date (Jan–Jul)356358▲ 0.6%

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
January55.0%75.0%▲ 36.4%
February70.6%83.3%▲ 18.0%
March89.7%74.1%▼ 17.4%
April75.0%63.3%▼ 15.6%
May72.6%69.4%▼ 4.4%
June78.3%66.7%▼ 14.8%
July75.8%71.0%▼ 6.3%
August90.3%––
September85.0%––
October62.9%–in progress
November56.9%––
December61.3%––
Year-to-date average (Jan–Jul)73.9%71.8%▼ 2.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January20▼ 100.0%
February00–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)20▼ 100.0%

By direction

SMF → STL

Scheduled flights
590
Flights operated
589
Cancelled
1 · 0.2%
On-time departures
73.0%

STL → SMF

Scheduled flights
590
Flights operated
589
Cancelled
1 · 0.2%
On-time departures
73.0%

SMF → STL and STL → SMF counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,180 100.0% 73.0% 2

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 delay13:00–14:0019.5min · 230 recorded · 230 measured
Recorded flights1,180SMF–STL

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 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 196 recorded · 196 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 64 recorded · 64 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 111 recorded · 110 measured · Source: the US BTS 13:00 · 61.3% · 230 recorded · 230 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 88 recorded · 88 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 45 recorded · 45 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 102 recorded · 101 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 62 recorded · 62 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 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 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 29 recorded · 29 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 196 recorded · 196 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 64 recorded · 64 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 111 recorded · 110 measured · Source: the US BTS 13:00 · 19.5 min · 230 recorded · 230 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 88 recorded · 88 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 45 recorded · 45 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 102 recorded · 101 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 62 recorded · 62 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 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 · 6 · 6 recorded · 6 measured · Source: the US BTS 06:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 07:00 · 29 · 29 recorded · 29 measured · Source: the US BTS 08:00 · 196 · 196 recorded · 196 measured · Source: the US BTS 09:00 · 64 · 64 recorded · 64 measured · Source: the US BTS 10:00 · 78 · 78 recorded · 78 measured · Source: the US BTS 11:00 · 60 · 60 recorded · 60 measured · Source: the US BTS 12:00 · 111 · 111 recorded · 110 measured · Source: the US BTS 13:00 · 230 · 230 recorded · 230 measured · Source: the US BTS 14:00 · 88 · 88 recorded · 88 measured · Source: the US BTS 15:00 · 45 · 45 recorded · 45 measured · Source: the US BTS 16:00 · 102 · 102 recorded · 101 measured · Source: the US BTS 17:00 · 62 · 62 recorded · 62 measured · Source: the US BTS 18:00 · 38 · 38 recorded · 38 measured · Source: the US BTS 19:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 20:00 · 5 · 5 recorded · 5 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———
05:00Fewer than 200 measured departures—66
06:00Fewer than 200 measured departures—6161
07:00Fewer than 200 measured departures—2929
08:00Fewer than 200 measured departures—196196
09:00Fewer than 200 measured departures—6464
10:00Fewer than 200 measured departures—7878
11:00Fewer than 200 measured departures—6060
12:00Fewer than 200 measured departures—110111
13:0061.3%19.5 min230230
14:00Fewer than 200 measured departures—8888
15:00Fewer than 200 measured departures—4545
16:00Fewer than 200 measured departures—101102
17:00Fewer than 200 measured departures—6262
18:00Fewer than 200 measured departures—3838
19:00Fewer than 200 measured departures—55
20:00Fewer than 200 measured departures—55
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 176 · 176 recorded · 175 measured · Source: the US BTS Tuesday · 156 · 156 recorded · 156 measured · Source: the US BTS Wednesday · 152 · 152 recorded · 152 measured · Source: the US BTS Thursday · 172 · 172 recorded · 172 measured · Source: the US BTS Friday · 176 · 176 recorded · 176 measured · Source: the US BTS Saturday · 168 · 168 recorded · 168 measured · Source: the US BTS Sunday · 180 · 180 recorded · 179 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
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—175176
TuesdayFewer than 200 measured departures—156156
WednesdayFewer than 200 measured departures—152152
ThursdayFewer than 200 measured departures—172172
FridayFewer than 200 measured departures—176176
SaturdayFewer than 200 measured departures—168168
SundayFewer than 200 measured departures—179180

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 · 42 · 42 recorded · 40 measured · Source: the US BTS Feb · 70 · 70 recorded · 70 measured · Source: the US BTS Mar · 116 · 116 recorded · 116 measured · Source: the US BTS Apr · 120 · 120 recorded · 120 measured · Source: the US BTS May · 124 · 124 recorded · 124 measured · Source: the US BTS Jun · 120 · 120 recorded · 120 measured · Source: the US BTS Jul · 124 · 124 recorded · 124 measured · Source: the US BTS Aug · 62 · 62 recorded · 62 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 102 · 102 recorded · 102 measured · Source: the US BTS Nov · 116 · 116 recorded · 116 measured · Source: the US BTS Dec · 124 · 124 recorded · 124 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—4042
FebFewer than 200 measured departures—7070
MarFewer than 200 measured departures—116116
AprFewer than 200 measured departures—120120
MayFewer than 200 measured departures—124124
JunFewer than 200 measured departures—120120
JulFewer than 200 measured departures—124124
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—102102
NovFewer than 200 measured departures—116116
DecFewer than 200 measured departures—124124

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 72.9% 860
  • Delayed >15 min 26.9% 318
  • Cancelled 0.2% 2
  • 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

16
16 of 16
Flight numbersBy direction DeparturesOn time
WN1845 STL → SMF 66 60.0%
WN4379 STL → SMF 64 60.9%
WN237 STL → SMF 60 70.0%
WN1184 SMF → STL 58 86.2%
WN4339 STL → SMF 58 91.4%
WN1044 SMF → STL 57 82.5%
WN4384 SMF → STL 57 52.6%
WN920 SMF → STL 57 50.9%
WN2113 STL → SMF 50 78.0%
WN302 STL → SMF 49 57.1%
WN1915 SMF → STL 45 55.6%
WN3592 SMF → STL 45 86.7%
WN4362 STL → SMF 42 90.5%
WN1525 SMF → STL 40 74.4%
WN3033 SMF → STL 33 60.6%
WN3768 SMF → STL 31 74.2%

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 62 +0.0% 0 71.0%
June 2026 60 +0.0% 0 66.7%
May 2026 62 +0.0% 0 69.4%
April 2026 60 +0.0% 0 63.3%
March 2026 58 +0.0% 0 74.1%
February 2026 36 +5.9% 0 83.3%
January 2026 20 +0.0% 0 75.0%
December 2025 62 +0.0% 0 61.3%
November 2025 58 +0.0% 0 56.9%
October 2025 62 +55.0% 0 62.9%
September 2025 60 0 85.0%
August 2025 62 0 90.3%
July 2025 62 0 75.8%
June 2025 60 0 78.3%
May 2025 62 0 72.6%
April 2025 60 0 75.0%
March 2025 58 0 89.7%
February 2025 34 0 70.6%
January 2025 20 2 55.0%
December 2024 62 0 66.1%
November 2024 58 0 77.6%
October 2024 40 0 82.5%

How to read this chart

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