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2,568 km · Domestic

Louis Armstrong New Orleans (MSY) – San Diego (SAN)

In July 2026, 54 flights operated between Louis Armstrong New Orleans and San Diego (both directions), and 51.9% 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
January5153▲ 3.9%
February5254▲ 3.8%
March62620.0%
April60600.0%
May62620.0%
June6052▼ 13.3%
July6054▼ 10.0%
August51––
September52––
October62–in progress
November57––
December62––
Year to date (Jan–Jul)407397▼ 2.5%

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
January70.6%86.8%▲ 22.9%
February75.0%83.3%▲ 11.1%
March79.0%66.1%▼ 16.3%
April58.3%60.0%▲ 2.9%
May69.4%58.1%▼ 16.3%
June53.3%51.9%▼ 2.6%
July50.0%51.9%▲ 3.8%
August62.7%––
September65.4%––
October67.7%–in progress
November80.7%––
December58.1%––
Year-to-date average (Jan–Jul)65.1%65.4%▲ 0.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January51▼ 80.0%
February00–
March00–
April00–
May00–
June00–
July00–
August1––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)51▼ 80.0%

By direction

MSY → SAN

Scheduled flights
628
Flights operated
625
Cancelled
3 · 0.5%
On-time departures
63.5%

SAN → MSY

Scheduled flights
628
Flights operated
623
Cancelled
5 · 0.8%
On-time departures
69.2%

MSY → SAN and SAN → MSY counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,256 100.0% 66.3% 8

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

Recorded flights1,256MSY–SAN

Departure hour

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 · 21 · 21 recorded · 21 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 08:00 · 136 · 136 recorded · 135 measured · Source: the US BTS 09:00 · 111 · 111 recorded · 111 measured · Source: the US BTS 10:00 · 89 · 89 recorded · 89 measured · Source: the US BTS 11:00 · 173 · 173 recorded · 170 measured · Source: the US BTS 12:00 · 122 · 122 recorded · 118 measured · Source: the US BTS 13:00 · 78 · 78 recorded · 78 measured · Source: the US BTS 14:00 · 131 · 131 recorded · 131 measured · Source: the US BTS 15:00 · 124 · 124 recorded · 124 measured · Source: the US BTS 16:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 17:00 · 53 · 53 recorded · 53 measured · Source: the US BTS 18:00 · 116 · 116 recorded · 116 measured · Source: the US BTS 19:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 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.

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
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—2121
06:00No observations———
07:00Fewer than 200 measured departures—5252
08:00Fewer than 200 measured departures—135136
09:00Fewer than 200 measured departures—111111
10:00Fewer than 200 measured departures—8989
11:00Fewer than 200 measured departures—170173
12:00Fewer than 200 measured departures—118122
13:00Fewer than 200 measured departures—7878
14:00Fewer than 200 measured departures—131131
15:00Fewer than 200 measured departures—124124
16:00Fewer than 200 measured departures—4242
17:00Fewer than 200 measured departures—5353
18:00Fewer than 200 measured departures—116116
19:00Fewer than 200 measured departures—88
20:00No observations———
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 · 188 · 188 recorded · 187 measured · Source: the US BTS Tuesday · 188 · 188 recorded · 186 measured · Source: the US BTS Wednesday · 188 · 188 recorded · 186 measured · Source: the US BTS Thursday · 184 · 184 recorded · 182 measured · Source: the US BTS Friday · 186 · 186 recorded · 185 measured · Source: the US BTS Saturday · 136 · 136 recorded · 136 measured · Source: the US BTS Sunday · 186 · 186 recorded · 186 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—187188
TuesdayFewer than 200 measured departures—186188
WednesdayFewer than 200 measured departures—186188
ThursdayFewer than 200 measured departures—182184
FridayFewer than 200 measured departures—185186
SaturdayFewer than 200 measured departures—136136
SundayFewer than 200 measured departures—186186

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 · 110 · 110 recorded · 104 measured · Source: the US BTS Feb · 106 · 106 recorded · 106 measured · Source: the US BTS Mar · 124 · 124 recorded · 124 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 · 112 · 112 recorded · 112 measured · Source: the US BTS Jul · 114 · 114 recorded · 114 measured · Source: the US BTS Aug · 52 · 52 recorded · 51 measured · Source: the US BTS Sep · 52 · 52 recorded · 52 measured · Source: the US BTS Oct · 102 · 102 recorded · 102 measured · Source: the US BTS Nov · 116 · 116 recorded · 115 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—104110
FebFewer than 200 measured departures—106106
MarFewer than 200 measured departures—124124
AprFewer than 200 measured departures—120120
MayFewer than 200 measured departures—124124
JunFewer than 200 measured departures—112112
JulFewer than 200 measured departures—114114
AugFewer than 200 measured departures—5152
SepFewer than 200 measured departures—5252
OctFewer than 200 measured departures—102102
NovFewer than 200 measured departures—115116
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 65.9% 828
  • Delayed >15 min 33.4% 420
  • Cancelled 0.6% 8
  • 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
WN2539 MSY → SAN 64 65.6%
WN2189 SAN → MSY 58 79.3%
WN3512 MSY → SAN 58 36.2%
WN1289 MSY → SAN 53 88.7%
WN3018 MSY → SAN 42 28.6%
WN3400 SAN → MSY 42 45.2%
WN659 SAN → MSY 42 97.6%
WN2605 MSY → SAN 37 76.5%
WN3802 MSY → SAN 34 55.9%
WN3947 SAN → MSY 33 78.8%

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 54 −10.0% 0 51.9%
June 2026 52 −13.3% 0 51.9%
May 2026 62 +0.0% 0 58.1%
April 2026 60 +0.0% 0 60.0%
March 2026 62 +0.0% 0 66.1%
February 2026 54 +3.8% 0 83.3%
January 2026 53 +3.9% 1 86.8%
December 2025 62 +0.0% 0 58.1%
November 2025 57 −1.7% 1 80.7%
October 2025 62 +55.0% 0 67.7%
September 2025 52 0 65.4%
August 2025 51 1 62.7%
July 2025 60 0 50.0%
June 2025 60 0 53.3%
May 2025 62 0 69.4%
April 2025 60 0 58.3%
March 2025 62 0 79.0%
February 2025 52 0 75.0%
January 2025 51 5 70.6%
December 2024 62 0 58.1%
November 2024 58 0 79.3%
October 2024 40 0 82.5%

How to read this chart

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