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1,008 km · Domestic

San Diego (SAN) – Salt Lake City (SLC)

In July 2026, 542 flights operated between San Diego and Salt Lake City (both directions), and 76.9% 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
January418499▲ 19.4%
February388511▲ 31.7%
March471582▲ 23.6%
April458543▲ 18.6%
May422476▲ 12.8%
June430502▲ 16.7%
July442542▲ 22.6%
August416––
September356––
October476–in progress
November524––
December546––
Year to date (Jan–Jul)3,0293,655▲ 20.7%

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
January84.0%82.0%▼ 2.4%
February81.2%84.1%▲ 3.6%
March86.6%87.1%▲ 0.6%
April85.4%86.4%▲ 1.2%
May87.0%85.3%▼ 2.0%
June79.3%76.5%▼ 3.5%
July79.4%76.9%▼ 3.1%
August82.0%––
September87.1%––
October82.1%–in progress
November84.2%––
December78.4%––
Year-to-date average (Jan–Jul)83.3%82.6%▼ 0.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January04–
February07–
March05–
April01–
May04–
June06–
July00–
August0––
September4––
October0–in progress
November12––
December3––
Year to date (Jan–Jul)027

Airlines on this route

  1. Delta Air Lines 61.5%
  2. SkyWest Airlines 21.3%
  3. Southwest Airlines 14.3%
  4. Frontier Airlines 2.8%
  5. Alaska Airlines 0.0%

Oct 1, 2024 – Jul 31, 2026

By direction

SAN → SLC

Scheduled flights
5,085
Flights operated
5,062
Cancelled
23 · 0.5%
On-time departures
83.0%

SLC → SAN

Scheduled flights
5,081
Flights operated
5,054
Cancelled
27 · 0.5%
On-time departures
83.1%

SAN → SLC and SLC → SAN counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 6,255 61.5% 86.1% 28
SkyWest Airlines OO 2,168 21.3% 82.7% 14
Southwest Airlines WN 1,458 14.3% 70.7% 4
Frontier Airlines F9 284 2.8% 83.6% 4
Alaska Airlines AS 1 0.0% 0.0% 0

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 delay07:00–08:00-0.2min · 736 recorded · 733 measured
Gap to highest-delay hour16.0min07:00 ↔ 18:00
Recorded flights10,166SAN–SLC

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 · 95.4% · 694 recorded · 691 measured · Source: the US BTS 07:00 · 94.4% · 736 recorded · 733 measured · Source: the US BTS 08:00 · 88.8% · 645 recorded · 644 measured · Source: the US BTS 09:00 · 90.1% · 699 recorded · 695 measured · Source: the US BTS 10:00 · 83.8% · 645 recorded · 640 measured · Source: the US BTS 11:00 · 82.2% · 1,045 recorded · 1,039 measured · Source: the US BTS 12:00 · 79.0% · 391 recorded · 391 measured · Source: the US BTS 13:00 · 79.6% · 811 recorded · 805 measured · Source: the US BTS 14:00 · 79.0% · 205 recorded · 205 measured · Source: the US BTS 15:00 · 76.1% · 921 recorded · 916 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 168 recorded · 168 measured · Source: the US BTS 17:00 · 76.8% · 1,473 recorded · 1,469 measured · Source: the US BTS 18:00 · 73.0% · 314 recorded · 311 measured · Source: the US BTS 19:00 · 83.4% · 654 recorded · 649 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 125 recorded · 124 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS 22:00 · 86.9% · 484 recorded · 480 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 28 recorded · 28 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 · 3.3 min · 694 recorded · 691 measured · Source: the US BTS 07:00 · -0.2 min · 736 recorded · 733 measured · Source: the US BTS 08:00 · 3.6 min · 645 recorded · 644 measured · Source: the US BTS 09:00 · 5.5 min · 699 recorded · 695 measured · Source: the US BTS 10:00 · 9.5 min · 645 recorded · 640 measured · Source: the US BTS 11:00 · 9.2 min · 1,045 recorded · 1,039 measured · Source: the US BTS 12:00 · 8.9 min · 391 recorded · 391 measured · Source: the US BTS 13:00 · 10.7 min · 811 recorded · 805 measured · Source: the US BTS 14:00 · 10.8 min · 205 recorded · 205 measured · Source: the US BTS 15:00 · 12.2 min · 921 recorded · 916 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 168 recorded · 168 measured · Source: the US BTS 17:00 · 12.1 min · 1,473 recorded · 1,469 measured · Source: the US BTS 18:00 · 15.8 min · 314 recorded · 311 measured · Source: the US BTS 19:00 · 8.4 min · 654 recorded · 649 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 125 recorded · 124 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS 22:00 · 5.9 min · 484 recorded · 480 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 28 recorded · 28 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 · 694 · 694 recorded · 691 measured · Source: the US BTS 07:00 · 736 · 736 recorded · 733 measured · Source: the US BTS 08:00 · 645 · 645 recorded · 644 measured · Source: the US BTS 09:00 · 699 · 699 recorded · 695 measured · Source: the US BTS 10:00 · 645 · 645 recorded · 640 measured · Source: the US BTS 11:00 · 1,045 · 1,045 recorded · 1,039 measured · Source: the US BTS 12:00 · 391 · 391 recorded · 391 measured · Source: the US BTS 13:00 · 811 · 811 recorded · 805 measured · Source: the US BTS 14:00 · 205 · 205 recorded · 205 measured · Source: the US BTS 15:00 · 921 · 921 recorded · 916 measured · Source: the US BTS 16:00 · 168 · 168 recorded · 168 measured · Source: the US BTS 17:00 · 1,473 · 1,473 recorded · 1,469 measured · Source: the US BTS 18:00 · 314 · 314 recorded · 311 measured · Source: the US BTS 19:00 · 654 · 654 recorded · 649 measured · Source: the US BTS 20:00 · 125 · 125 recorded · 124 measured · Source: the US BTS 21:00 · 128 · 128 recorded · 128 measured · Source: the US BTS 22:00 · 484 · 484 recorded · 480 measured · Source: the US BTS 23:00 · 28 · 28 recorded · 28 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———
05:00No observations———
06:0095.4%3.3 min691694
07:0094.4%-0.2 min733736
08:0088.8%3.6 min644645
09:0090.1%5.5 min695699
10:0083.8%9.5 min640645
11:0082.2%9.2 min1,0391,045
12:0079.0%8.9 min391391
13:0079.6%10.7 min805811
14:0079.0%10.8 min205205
15:0076.1%12.2 min916921
16:00Fewer than 200 measured departures—168168
17:0076.8%12.1 min1,4691,473
18:0073.0%15.8 min311314
19:0083.4%8.4 min649654
20:00Fewer than 200 measured departures—124125
21:00Fewer than 200 measured departures—128128
22:0086.9%5.9 min480484
23:00Fewer than 200 measured departures—2828

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 85.0% · 1,514 recorded · 1,510 measured · Source: the US BTS Tuesday · 87.6% · 1,417 recorded · 1,413 measured · Source: the US BTS Wednesday · 87.2% · 1,410 recorded · 1,402 measured · Source: the US BTS Thursday · 79.4% · 1,456 recorded · 1,448 measured · Source: the US BTS Friday · 78.8% · 1,515 recorded · 1,506 measured · Source: the US BTS Saturday · 83.9% · 1,288 recorded · 1,278 measured · Source: the US BTS Sunday · 80.1% · 1,566 recorded · 1,559 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 · 5.5 min · 1,514 recorded · 1,510 measured · Source: the US BTS Tuesday · 4.4 min · 1,417 recorded · 1,413 measured · Source: the US BTS Wednesday · 5.3 min · 1,410 recorded · 1,402 measured · Source: the US BTS Thursday · 12.4 min · 1,456 recorded · 1,448 measured · Source: the US BTS Friday · 14.2 min · 1,515 recorded · 1,506 measured · Source: the US BTS Saturday · 7.7 min · 1,288 recorded · 1,278 measured · Source: the US BTS Sunday · 9.2 min · 1,566 recorded · 1,559 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 · 1,514 · 1,514 recorded · 1,510 measured · Source: the US BTS Tuesday · 1,417 · 1,417 recorded · 1,413 measured · Source: the US BTS Wednesday · 1,410 · 1,410 recorded · 1,402 measured · Source: the US BTS Thursday · 1,456 · 1,456 recorded · 1,448 measured · Source: the US BTS Friday · 1,515 · 1,515 recorded · 1,506 measured · Source: the US BTS Saturday · 1,288 · 1,288 recorded · 1,278 measured · Source: the US BTS Sunday · 1,566 · 1,566 recorded · 1,559 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday85.0%5.5 min1,5101,514
Tuesday87.6%4.4 min1,4131,417
Wednesday87.2%5.3 min1,4021,410
Thursday79.4%12.4 min1,4481,456
Friday78.8%14.2 min1,5061,515
Saturday83.9%7.7 min1,2781,288
Sunday80.1%9.2 min1,5591,566

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 · 82.9% · 921 recorded · 917 measured · Source: the US BTS Feb · 82.9% · 906 recorded · 899 measured · Source: the US BTS Mar · 86.9% · 1,058 recorded · 1,053 measured · Source: the US BTS Apr · 85.9% · 1,002 recorded · 1,001 measured · Source: the US BTS May · 86.1% · 902 recorded · 898 measured · Source: the US BTS Jun · 77.8% · 938 recorded · 932 measured · Source: the US BTS Jul · 78.1% · 984 recorded · 984 measured · Source: the US BTS Aug · 82.0% · 416 recorded · 416 measured · Source: the US BTS Sep · 87.1% · 360 recorded · 356 measured · Source: the US BTS Oct · 84.1% · 746 recorded · 746 measured · Source: the US BTS Nov · 85.7% · 926 recorded · 914 measured · Source: the US BTS Dec · 79.5% · 1,007 recorded · 1,000 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 · 10.3 min · 921 recorded · 917 measured · Source: the US BTS Feb · 9.1 min · 906 recorded · 899 measured · Source: the US BTS Mar · 5.5 min · 1,058 recorded · 1,053 measured · Source: the US BTS Apr · 4.6 min · 1,002 recorded · 1,001 measured · Source: the US BTS May · 5.6 min · 902 recorded · 898 measured · Source: the US BTS Jun · 10.1 min · 938 recorded · 932 measured · Source: the US BTS Jul · 10.9 min · 984 recorded · 984 measured · Source: the US BTS Aug · 8.1 min · 416 recorded · 416 measured · Source: the US BTS Sep · 3.8 min · 360 recorded · 356 measured · Source: the US BTS Oct · 8.1 min · 746 recorded · 746 measured · Source: the US BTS Nov · 6.1 min · 926 recorded · 914 measured · Source: the US BTS Dec · 16.1 min · 1,007 recorded · 1,000 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 921 · 921 recorded · 917 measured · Source: the US BTS Feb · 906 · 906 recorded · 899 measured · Source: the US BTS Mar · 1,058 · 1,058 recorded · 1,053 measured · Source: the US BTS Apr · 1,002 · 1,002 recorded · 1,001 measured · Source: the US BTS May · 902 · 902 recorded · 898 measured · Source: the US BTS Jun · 938 · 938 recorded · 932 measured · Source: the US BTS Jul · 984 · 984 recorded · 984 measured · Source: the US BTS Aug · 416 · 416 recorded · 416 measured · Source: the US BTS Sep · 360 · 360 recorded · 356 measured · Source: the US BTS Oct · 746 · 746 recorded · 746 measured · Source: the US BTS Nov · 926 · 926 recorded · 914 measured · Source: the US BTS Dec · 1,007 · 1,007 recorded · 1,000 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.9%10.3 min917921
Feb82.9%9.1 min899906
Mar86.9%5.5 min1,0531,058
Apr85.9%4.6 min1,0011,002
May86.1%5.6 min898902
Jun77.8%10.1 min932938
Jul78.1%10.9 min984984
Aug82.0%8.1 min416416
Sep87.1%3.8 min356360
Oct84.1%8.1 min746746
Nov85.7%6.1 min914926
Dec79.5%16.1 min1,0001,007

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% 8,402
  • Delayed >15 min 16.9% 1,714
  • Cancelled 0.5% 50
  • 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

55
55 of 55
Flight numbersBy direction DeparturesOn time
DL1117 SAN → SLC 658 95.3%
DL1177 SLC → SAN 657 92.2%
DL1177 SAN → SLC 657 89.6%
DL1202 SLC → SAN 656 86.5%
DL1210 SLC → SAN 656 77.7%
DL1210 SAN → SLC 544 79.5%
DL1252 SLC → SAN 481 81.1%
OO3488 SAN → SLC 474 82.2%
DL1296 SLC → SAN 430 85.4%
OO3018 SLC → SAN 246 93.9%
OO3017 SAN → SLC 233 70.7%
DL1296 SAN → SLC 230 84.0%
DL1179 SLC → SAN 228 88.6%
OO3019 SLC → SAN 228 82.1%
OO3488 SLC → SAN 203 79.7%
DL1116 SAN → SLC 145 81.9%
F991901 SLC → SAN 137 86.7%
DL1453 SAN → SLC 131 82.4%
OO3016 SAN → SLC 130 77.8%
DL1252 SAN → SLC 129 87.6%
F991902 SAN → SLC 129 80.5%
DL1179 SAN → SLC 107 78.5%
WN2180 SLC → SAN 104 80.8%
OO3020 SLC → SAN 70 88.1%
OO3380 SLC → SAN 69 81.2%
WN1413 SAN → SLC 64 84.1%
DL1732 SAN → SLC 62 80.7%
WN3608 SLC → SAN 58 67.2%
OO3312 SLC → SAN 56 94.6%
DL1164 SAN → SLC 53 84.9%
OO3122 SAN → SLC 52 94.2%
OO3123 SLC → SAN 52 90.4%
DL1183 SAN → SLC 50 88.0%
WN1131 SAN → SLC 50 50.0%
WN2542 SLC → SAN 50 74.0%
WN3754 SLC → SAN 50 42.0%
WN4309 SLC → SAN 49 63.3%
WN2410 SAN → SLC 42 66.7%
WN2592 SLC → SAN 42 90.5%
WN3430 SAN → SLC 39 79.5%
DL1412 SAN → SLC 38 94.7%
DL2366 SAN → SLC 38 86.8%
OO3116 SLC → SAN 34 85.3%
OO3117 SAN → SLC 34 88.2%
OO3317 SLC → SAN 34 97.1%
OO3479 SAN → SLC 34 82.4%
WN1160 SAN → SLC 33 60.6%
WN2137 SLC → SAN 33 81.8%
DL1616 SAN → SLC 32 93.8%
DL1324 SAN → SLC 31 87.1%
DL1567 SAN → SLC 31 80.7%
DL1596 SAN → SLC 31 96.8%
DL1278 SAN → SLC 30 93.3%
WN1722 SAN → SLC 30 60.0%
WN451 SAN → SLC 30 100.0%

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 542 +22.6% 0 76.9%
June 2026 502 +16.7% 6 76.5%
May 2026 476 +12.8% 4 85.3%
April 2026 543 +18.6% 1 86.4%
March 2026 582 +23.6% 5 87.1%
February 2026 511 +31.7% 7 84.1%
January 2026 499 +19.4% 4 82.0%
December 2025 546 +20.3% 3 78.4%
November 2025 524 +34.4% 12 84.2%
October 2025 476 +76.3% 0 82.1%
September 2025 356 4 87.1%
August 2025 416 0 82.0%
July 2025 442 0 79.4%
June 2025 430 0 79.3%
May 2025 422 0 87.0%
April 2025 458 0 85.4%
March 2025 471 0 86.6%
February 2025 388 0 81.2%
January 2025 418 0 84.0%
December 2024 454 4 80.8%
November 2024 390 0 87.7%
October 2024 270 0 87.4%

How to read this chart

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