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2,854 km · Domestic

San Antonio (SAT) – Seattle–Tacoma (SEA)

In July 2026, 122 flights operated between San Antonio and Seattle–Tacoma (both directions), and 64.8% 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
January5774▲ 29.8%
February4856▲ 16.7%
March8962▼ 30.3%
April11859▼ 50.0%
May120101▼ 15.8%
June1201200.0%
July120122▲ 1.7%
August112––
September94––
October104–in progress
November96––
December104––
Year to date (Jan–Jul)672594▼ 11.6%

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
January66.7%59.5%▼ 10.8%
February70.8%85.7%▲ 21.0%
March84.3%59.7%▼ 29.2%
April79.7%79.7%0.0%
May80.0%84.2%▲ 5.3%
June65.8%72.5%▲ 10.2%
July62.5%64.8%▲ 3.7%
August70.5%––
September84.0%––
October74.0%–in progress
November86.5%––
December71.2%––
Year-to-date average (Jan–Jul)72.8%72.3%▼ 0.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January01–
February00–
March00–
April01–
May00–
June00–
July20▼ 100.0%
August2––
September0––
October4–in progress
November4––
December0––
Year to date (Jan–Jul)220.0%

By direction

SAT → SEA

Scheduled flights
1,029
Flights operated
1,020
Cancelled
9 · 0.9%
On-time departures
76.7%

SEA → SAT

Scheduled flights
1,029
Flights operated
1,022
Cancelled
7 · 0.7%
On-time departures
72.4%

SAT → SEA and SEA → SAT counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Alaska Airlines AS 2,058 100.0% 74.5% 16

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 delay07:00–08:005.4min · 295 recorded · 293 measured
Gap to highest-delay hour9.3min07:00 ↔ 12:00
Recorded flights2,058SAT–SEA

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 · Fewer than 200 measured departures · 192 recorded · 190 measured · Source: the US BTS 07:00 · 86.7% · 295 recorded · 293 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 153 recorded · 151 measured · Source: the US BTS 12:00 · 65.4% · 294 recorded · 292 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 50 recorded · 50 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 139 recorded · 138 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 158 recorded · 155 measured · Source: the US BTS 19:00 · 68.6% · 257 recorded · 255 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 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 23:00 · 79.3% · 244 recorded · 242 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 · Fewer than 200 measured departures · 192 recorded · 190 measured · Source: the US BTS 07:00 · 5.4 min · 295 recorded · 293 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 84 recorded · 84 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 153 recorded · 151 measured · Source: the US BTS 12:00 · 14.8 min · 294 recorded · 292 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 50 recorded · 50 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 139 recorded · 138 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 158 recorded · 155 measured · Source: the US BTS 19:00 · 14.4 min · 257 recorded · 255 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 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 23:00 · 6.7 min · 244 recorded · 242 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 · 192 · 192 recorded · 190 measured · Source: the US BTS 07:00 · 295 · 295 recorded · 293 measured · Source: the US BTS 08:00 · 27 · 27 recorded · 27 measured · Source: the US BTS 09:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 10:00 · 84 · 84 recorded · 84 measured · Source: the US BTS 11:00 · 153 · 153 recorded · 151 measured · Source: the US BTS 12:00 · 294 · 294 recorded · 292 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 16:00 · 50 · 50 recorded · 50 measured · Source: the US BTS 17:00 · 139 · 139 recorded · 138 measured · Source: the US BTS 18:00 · 158 · 158 recorded · 155 measured · Source: the US BTS 19:00 · 257 · 257 recorded · 255 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 · 52 · 52 recorded · 52 measured · Source: the US BTS 23:00 · 244 · 244 recorded · 242 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———
06:00Fewer than 200 measured departures—190192
07:0086.7%5.4 min293295
08:00Fewer than 200 measured departures—2727
09:00Fewer than 200 measured departures—5252
10:00Fewer than 200 measured departures—8484
11:00Fewer than 200 measured departures—151153
12:0065.4%14.8 min292294
13:00No observations———
14:00No observations———
15:00Fewer than 200 measured departures—6161
16:00Fewer than 200 measured departures—5050
17:00Fewer than 200 measured departures—138139
18:00Fewer than 200 measured departures—155158
19:0068.6%14.4 min255257
20:00No observations———
21:00No observations———
22:00Fewer than 200 measured departures—5252
23:0079.3%6.7 min242244

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.8% · 314 recorded · 309 measured · Source: the US BTS Tuesday · 79.1% · 274 recorded · 273 measured · Source: the US BTS Wednesday · 77.2% · 263 recorded · 263 measured · Source: the US BTS Thursday · 74.7% · 316 recorded · 312 measured · Source: the US BTS Friday · 77.6% · 316 recorded · 312 measured · Source: the US BTS Saturday · 72.2% · 256 recorded · 255 measured · Source: the US BTS Sunday · 68.9% · 319 recorded · 318 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 · 11.8 min · 314 recorded · 309 measured · Source: the US BTS Tuesday · 6.2 min · 274 recorded · 273 measured · Source: the US BTS Wednesday · 6.4 min · 263 recorded · 263 measured · Source: the US BTS Thursday · 12.8 min · 316 recorded · 312 measured · Source: the US BTS Friday · 10.8 min · 316 recorded · 312 measured · Source: the US BTS Saturday · 14.2 min · 256 recorded · 255 measured · Source: the US BTS Sunday · 12.9 min · 319 recorded · 318 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 · 314 · 314 recorded · 309 measured · Source: the US BTS Tuesday · 274 · 274 recorded · 273 measured · Source: the US BTS Wednesday · 263 · 263 recorded · 263 measured · Source: the US BTS Thursday · 316 · 316 recorded · 312 measured · Source: the US BTS Friday · 316 · 316 recorded · 312 measured · Source: the US BTS Saturday · 256 · 256 recorded · 255 measured · Source: the US BTS Sunday · 319 · 319 recorded · 318 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
Monday72.8%11.8 min309314
Tuesday79.1%6.2 min273274
Wednesday77.2%6.4 min263263
Thursday74.7%12.8 min312316
Friday77.6%10.8 min312316
Saturday72.2%14.2 min255256
Sunday68.9%12.9 min318319

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 · 132 recorded · 131 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 151 recorded · 151 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 178 recorded · 177 measured · Source: the US BTS May · 81.9% · 221 recorded · 221 measured · Source: the US BTS Jun · 69.2% · 240 recorded · 240 measured · Source: the US BTS Jul · 63.6% · 244 recorded · 242 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 112 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 166 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 200 recorded · 194 measured · Source: the US BTS Dec · 71.0% · 210 recorded · 210 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 · 132 recorded · 131 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 151 recorded · 151 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 178 recorded · 177 measured · Source: the US BTS May · 7.3 min · 221 recorded · 221 measured · Source: the US BTS Jun · 14.0 min · 240 recorded · 240 measured · Source: the US BTS Jul · 17.2 min · 244 recorded · 242 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 112 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 166 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 200 recorded · 194 measured · Source: the US BTS Dec · 13.7 min · 210 recorded · 210 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 · 132 · 132 recorded · 131 measured · Source: the US BTS Feb · 104 · 104 recorded · 104 measured · Source: the US BTS Mar · 151 · 151 recorded · 151 measured · Source: the US BTS Apr · 178 · 178 recorded · 177 measured · Source: the US BTS May · 221 · 221 recorded · 221 measured · Source: the US BTS Jun · 240 · 240 recorded · 240 measured · Source: the US BTS Jul · 244 · 244 recorded · 242 measured · Source: the US BTS Aug · 114 · 114 recorded · 112 measured · Source: the US BTS Sep · 94 · 94 recorded · 94 measured · Source: the US BTS Oct · 170 · 170 recorded · 166 measured · Source: the US BTS Nov · 200 · 200 recorded · 194 measured · Source: the US BTS Dec · 210 · 210 recorded · 210 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—131132
FebFewer than 200 measured departures—104104
MarFewer than 200 measured departures—151151
AprFewer than 200 measured departures—177178
May81.9%7.3 min221221
Jun69.2%14.0 min240240
Jul63.6%17.2 min242244
AugFewer than 200 measured departures—112114
SepFewer than 200 measured departures—9494
OctFewer than 200 measured departures—166170
NovFewer than 200 measured departures—194200
Dec71.0%13.7 min210210

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 74.0% 1,522
  • Delayed >15 min 25.3% 520
  • Cancelled 0.8% 16
  • 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

11
11 of 11
Flight numbersBy direction DeparturesOn time
AS494 SEA → SAT 611 73.2%
AS494 SAT → SEA 464 68.3%
AS495 SAT → SEA 187 85.3%
AS449 SEA → SAT 129 66.4%
AS423 SEA → SAT 112 80.9%
AS404 SAT → SEA 106 75.2%
AS520 SEA → SAT 106 63.2%
AS400 SAT → SEA 104 89.4%
AS519 SAT → SEA 82 86.4%
AS437 SAT → SEA 78 87.2%
AS446 SEA → SAT 57 77.2%

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 122 +1.7% 0 64.8%
June 2026 120 +0.0% 0 72.5%
May 2026 101 −15.8% 0 84.2%
April 2026 59 −50.0% 1 79.7%
March 2026 62 −30.3% 0 59.7%
February 2026 56 +16.7% 0 85.7%
January 2026 74 +29.8% 1 59.5%
December 2025 104 −1.9% 0 71.2%
November 2025 96 −2.0% 4 86.5%
October 2025 104 +67.7% 4 74.0%
September 2025 94 0 84.0%
August 2025 112 2 70.5%
July 2025 120 2 62.5%
June 2025 120 0 65.8%
May 2025 120 0 80.0%
April 2025 118 0 79.7%
March 2025 89 0 84.3%
February 2025 48 0 70.8%
January 2025 57 0 66.7%
December 2024 106 0 70.8%
November 2024 98 2 83.7%
October 2024 62 0 88.7%

How to read this chart

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