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591 km · Domestic

San Diego (SAN) – Tucson (TUS)

In July 2026, 116 flights operated between San Diego and Tucson (both directions), and 68.1% 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 periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January76109▲ 43.4%
February86104▲ 20.9%
March110116▲ 5.5%
April1121120.0%
May1121120.0%
June111112▲ 0.9%
July114116▲ 1.8%
August96––
September93––
October112–in progress
November107––
December114––
Year to date (Jan–Jul)721781▲ 8.3%

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
January93.4%79.8%▼ 14.6%
February87.2%79.8%▼ 8.5%
March81.8%78.4%▼ 4.2%
April85.7%70.5%▼ 17.7%
May74.1%66.1%▼ 10.8%
June74.8%67.9%▼ 9.2%
July60.5%68.1%▲ 12.6%
August75.0%––
September72.0%––
October79.5%–in progress
November74.8%––
December67.5%––
Year-to-date average (Jan–Jul)79.6%72.9%▼ 8.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January23▲ 50.0%
February00–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September1––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)330.0%

By direction

SAN → TUS

Scheduled flights
1,136
Flights operated
1,130
Cancelled
6 · 0.5%
On-time departures
73.5%

TUS → SAN

Scheduled flights
1,136
Flights operated
1,131
Cancelled
5 · 0.4%
On-time departures
78.3%

SAN → TUS and TUS → SAN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 2,272 100.0% 75.9% 11

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 delay08:00–09:004.3min · 307 recorded · 307 measured
Gap to highest-delay hour26.0min08:00 ↔ 19:00
Recorded flights2,272SAN–TUS

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 · 47 recorded · 47 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 172 recorded · 170 measured · Source: the US BTS 08:00 · 91.5% · 307 recorded · 307 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 110 recorded · 109 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 76 recorded · 76 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS 17:00 · 71.2% · 227 recorded · 226 measured · Source: the US BTS 18:00 · 60.6% · 290 recorded · 289 measured · Source: the US BTS 19:00 · 50.8% · 250 recorded · 248 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 149 recorded · 146 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 65 recorded · 64 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 · 47 recorded · 47 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 172 recorded · 170 measured · Source: the US BTS 08:00 · 4.3 min · 307 recorded · 307 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 160 recorded · 160 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 110 recorded · 109 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 76 recorded · 76 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 103 recorded · 103 measured · Source: the US BTS 17:00 · 13.9 min · 227 recorded · 226 measured · Source: the US BTS 18:00 · 23.5 min · 290 recorded · 289 measured · Source: the US BTS 19:00 · 30.2 min · 250 recorded · 248 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 149 recorded · 146 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 65 recorded · 64 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 · 47 · 47 recorded · 47 measured · Source: the US BTS 06:00 · 170 · 170 recorded · 170 measured · Source: the US BTS 07:00 · 172 · 172 recorded · 170 measured · Source: the US BTS 08:00 · 307 · 307 recorded · 307 measured · Source: the US BTS 09:00 · 160 · 160 recorded · 160 measured · Source: the US BTS 10:00 · 110 · 110 recorded · 109 measured · Source: the US BTS 11:00 · 99 · 99 recorded · 99 measured · Source: the US BTS 12:00 · 76 · 76 recorded · 76 measured · Source: the US BTS 13:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 14:00 · 11 · 11 recorded · 11 measured · Source: the US BTS 15:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 16:00 · 103 · 103 recorded · 103 measured · Source: the US BTS 17:00 · 227 · 227 recorded · 226 measured · Source: the US BTS 18:00 · 290 · 290 recorded · 289 measured · Source: the US BTS 19:00 · 250 · 250 recorded · 248 measured · Source: the US BTS 20:00 · 149 · 149 recorded · 146 measured · Source: the US BTS 21:00 · 65 · 65 recorded · 64 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

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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———
05:00Fewer than 200 measured departures—4747
06:00Fewer than 200 measured departures—170170
07:00Fewer than 200 measured departures—170172
08:0091.5%4.3 min307307
09:00Fewer than 200 measured departures—160160
10:00Fewer than 200 measured departures—109110
11:00Fewer than 200 measured departures—9999
12:00Fewer than 200 measured departures—7676
13:00Fewer than 200 measured departures—1818
14:00Fewer than 200 measured departures—1111
15:00Fewer than 200 measured departures—1818
16:00Fewer than 200 measured departures—103103
17:0071.2%13.9 min226227
18:0060.6%23.5 min289290
19:0050.8%30.2 min248250
20:00Fewer than 200 measured departures—146149
21:00Fewer than 200 measured departures—6465
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 · 72.9% · 362 recorded · 362 measured · Source: the US BTS Tuesday · 78.1% · 320 recorded · 319 measured · Source: the US BTS Wednesday · 81.1% · 318 recorded · 317 measured · Source: the US BTS Thursday · 76.4% · 356 recorded · 351 measured · Source: the US BTS Friday · 71.6% · 362 recorded · 359 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS Sunday · 71.5% · 366 recorded · 365 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 · 14.8 min · 362 recorded · 362 measured · Source: the US BTS Tuesday · 8.7 min · 320 recorded · 319 measured · Source: the US BTS Wednesday · 7.2 min · 318 recorded · 317 measured · Source: the US BTS Thursday · 14.5 min · 356 recorded · 351 measured · Source: the US BTS Friday · 19.1 min · 362 recorded · 359 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS Sunday · 15.0 min · 366 recorded · 365 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 · 362 · 362 recorded · 362 measured · Source: the US BTS Tuesday · 320 · 320 recorded · 319 measured · Source: the US BTS Wednesday · 318 · 318 recorded · 317 measured · Source: the US BTS Thursday · 356 · 356 recorded · 351 measured · Source: the US BTS Friday · 362 · 362 recorded · 359 measured · Source: the US BTS Saturday · 188 · 188 recorded · 188 measured · Source: the US BTS Sunday · 366 · 366 recorded · 365 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.9%14.8 min362362
Tuesday78.1%8.7 min319320
Wednesday81.1%7.2 min317318
Thursday76.4%14.5 min351356
Friday71.6%19.1 min359362
SaturdayFewer than 200 measured departures—188188
Sunday71.5%15.0 min365366

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 · Fewer than 200 measured departures · 190 recorded · 185 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Mar · 80.1% · 226 recorded · 226 measured · Source: the US BTS Apr · 78.1% · 224 recorded · 224 measured · Source: the US BTS May · 70.1% · 224 recorded · 224 measured · Source: the US BTS Jun · 71.3% · 224 recorded · 223 measured · Source: the US BTS Jul · 64.4% · 230 recorded · 230 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 96 recorded · 96 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 93 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 200 recorded · 199 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 202 recorded · 199 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 · Fewer than 200 measured departures · 190 recorded · 185 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Mar · 8.4 min · 226 recorded · 226 measured · Source: the US BTS Apr · 14.5 min · 224 recorded · 224 measured · Source: the US BTS May · 15.8 min · 224 recorded · 224 measured · Source: the US BTS Jun · 14.5 min · 224 recorded · 223 measured · Source: the US BTS Jul · 19.1 min · 230 recorded · 230 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 96 recorded · 96 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 93 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 200 recorded · 199 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 202 recorded · 199 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 · 190 · 190 recorded · 185 measured · Source: the US BTS Feb · 190 · 190 recorded · 190 measured · Source: the US BTS Mar · 226 · 226 recorded · 226 measured · Source: the US BTS Apr · 224 · 224 recorded · 224 measured · Source: the US BTS May · 224 · 224 recorded · 224 measured · Source: the US BTS Jun · 224 · 224 recorded · 223 measured · Source: the US BTS Jul · 230 · 230 recorded · 230 measured · Source: the US BTS Aug · 96 · 96 recorded · 96 measured · Source: the US BTS Sep · 94 · 94 recorded · 93 measured · Source: the US BTS Oct · 172 · 172 recorded · 172 measured · Source: the US BTS Nov · 200 · 200 recorded · 199 measured · Source: the US BTS Dec · 202 · 202 recorded · 199 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—185190
FebFewer than 200 measured departures—190190
Mar80.1%8.4 min226226
Apr78.1%14.5 min224224
May70.1%15.8 min224224
Jun71.3%14.5 min223224
Jul64.4%19.1 min230230
AugFewer than 200 measured departures—9696
SepFewer than 200 measured departures—9394
OctFewer than 200 measured departures—172172
NovFewer than 200 measured departures—199200
DecFewer than 200 measured departures—199202

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 75.5% 1,716
  • Delayed >15 min 24.0% 545
  • Cancelled 0.5% 11
  • 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

17
17 of 17
Flight numbersBy direction DeparturesOn time
WN1193 TUS → SAN 60 93.3%
WN4229 TUS → SAN 59 61.4%
WN4135 TUS → SAN 58 98.3%
WN4876 SAN → TUS 57 50.9%
WN1156 SAN → TUS 55 76.4%
WN4269 SAN → TUS 55 53.7%
WN3984 SAN → TUS 53 81.1%
WN4223 TUS → SAN 53 94.3%
WN1870 TUS → SAN 50 88.0%
WN3555 SAN → TUS 49 89.8%
WN4118 TUS → SAN 49 98.0%
WN1085 SAN → TUS 42 85.7%
WN1372 SAN → TUS 42 66.7%
WN2310 TUS → SAN 42 95.2%
WN2664 TUS → SAN 42 50.0%
WN287 SAN → TUS 42 59.5%
WN4423 SAN → TUS 35 51.4%

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 116 +1.8% 0 68.1%
June 2026 112 +0.9% 0 67.9%
May 2026 112 +0.0% 0 66.1%
April 2026 112 +0.0% 0 70.5%
March 2026 116 +5.5% 0 78.4%
February 2026 104 +20.9% 0 79.8%
January 2026 109 +43.4% 3 79.8%
December 2025 114 +34.1% 0 67.5%
November 2025 107 +16.3% 1 74.8%
October 2025 112 +86.7% 0 79.5%
September 2025 93 1 72.0%
August 2025 96 0 75.0%
July 2025 114 0 60.5%
June 2025 111 1 74.8%
May 2025 112 0 74.1%
April 2025 112 0 85.7%
March 2025 110 0 81.8%
February 2025 86 0 87.2%
January 2025 76 2 93.4%
December 2024 85 3 76.5%
November 2024 92 0 84.8%
October 2024 60 0 86.7%

How to read this chart

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