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1,365 km · Domestic

San Luis County (SBP) – Seattle–Tacoma (SEA)

In June 2026, 18 flights operated between San Luis County and Seattle–Tacoma (both directions), and 94.4% left on time, according to the US BTS.

Official · June 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 periods17 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January6112▼ 80.3%
February55––
March6228▼ 54.8%
April6042▼ 30.0%
May6238▼ 38.7%
June6018▼ 70.0%
July62––
August62––
September54––
October60–in progress
November60––
December61––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods17 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January91.8%41.7%▼ 54.6%
February80.0%––
March82.3%82.1%▼ 0.2%
April85.0%97.6%▲ 14.8%
May82.3%76.3%▼ 7.3%
June63.3%94.4%▲ 49.1%
July69.4%––
August66.1%––
September92.6%––
October83.3%–in progress
November83.3%––
December75.4%––

Cancelled flights by month

The most recent periods17 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January10▼ 100.0%
February1––
March00–
April00–
May00–
June00–
July0––
August0––
September2––
October2–in progress
November0––
December1––

Airlines on this route

  1. Alaska Airlines 89.7%
  2. SkyWest Airlines 10.3%

Oct 1, 2024 – Jun 30, 2026

By direction

SBP → SEA

Scheduled flights
513
Flights operated
507
Cancelled
6 · 1.2%
On-time departures
81.7%

SEA → SBP

Scheduled flights
513
Flights operated
511
Cancelled
2 · 0.4%
On-time departures
80.4%

SBP → SEA and SEA → SBP counted separately.

Airlines on this route

Oct 1, 2024 – Jun 30, 2026
AirlineScheduled flights Share On-time departures Cancelled
Alaska Airlines AS 920 89.7% 80.3% 7
SkyWest Airlines OO 106 10.3% 87.6% 1

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 → Jun 9, 2026

Lowest average delay16:00–17:006.0min · 424 recorded · 420 measured
Gap to highest-delay hour1.3min16:00 ↔ 19:00
Recorded flights1,026SBP–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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 77 recorded · 76 measured · Source: the US BTS 16:00 · 82.1% · 424 recorded · 420 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 43 recorded · 42 measured · Source: the US BTS 19:00 · 78.9% · 291 recorded · 289 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.

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 77 recorded · 76 measured · Source: the US BTS 16:00 · 6.0 min · 424 recorded · 420 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 43 recorded · 42 measured · Source: the US BTS 19:00 · 7.4 min · 291 recorded · 289 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.

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 09:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 12:00 · 90 · 90 recorded · 90 measured · Source: the US BTS 13:00 · 77 · 77 recorded · 77 measured · Source: the US BTS 14:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 15:00 · 77 · 77 recorded · 76 measured · Source: the US BTS 16:00 · 424 · 424 recorded · 420 measured · Source: the US BTS 17:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 18:00 · 43 · 43 recorded · 42 measured · Source: the US BTS 19:00 · 291 · 291 recorded · 289 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.

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———
06:00No observations———
07:00No observations———
08:00Fewer than 200 measured departures—11
09:00Fewer than 200 measured departures—11
10:00No observations———
11:00Fewer than 200 measured departures—88
12:00Fewer than 200 measured departures—9090
13:00Fewer than 200 measured departures—7777
14:00Fewer than 200 measured departures—1010
15:00Fewer than 200 measured departures—7677
16:0082.1%6.0 min420424
17:00Fewer than 200 measured departures—44
18:00Fewer than 200 measured departures—4243
19:0078.9%7.4 min289291
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 · 146 · 146 recorded · 145 measured · Source: the US BTS Tuesday · 146 · 146 recorded · 145 measured · Source: the US BTS Wednesday · 146 · 146 recorded · 143 measured · Source: the US BTS Thursday · 146 · 146 recorded · 144 measured · Source: the US BTS Friday · 146 · 146 recorded · 145 measured · Source: the US BTS Saturday · 148 · 148 recorded · 148 measured · Source: the US BTS Sunday · 148 · 148 recorded · 148 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—145146
TuesdayFewer than 200 measured departures—145146
WednesdayFewer than 200 measured departures—143146
ThursdayFewer than 200 measured departures—144146
FridayFewer than 200 measured departures—145146
SaturdayFewer than 200 measured departures—148148
SundayFewer than 200 measured departures—148148

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 · 74 · 74 recorded · 73 measured · Source: the US BTS Feb · 56 · 56 recorded · 55 measured · Source: the US BTS Mar · 90 · 90 recorded · 90 measured · Source: the US BTS Apr · 102 · 102 recorded · 102 measured · Source: the US BTS May · 100 · 100 recorded · 100 measured · Source: the US BTS Jun · 78 · 78 recorded · 78 measured · Source: the US BTS Jul · 62 · 62 recorded · 62 measured · Source: the US BTS Aug · 62 · 62 recorded · 62 measured · Source: the US BTS Sep · 56 · 56 recorded · 54 measured · Source: the US BTS Oct · 102 · 102 recorded · 100 measured · Source: the US BTS Nov · 120 · 120 recorded · 119 measured · Source: the US BTS Dec · 124 · 124 recorded · 123 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—7374
FebFewer than 200 measured departures—5556
MarFewer than 200 measured departures—9090
AprFewer than 200 measured departures—102102
MayFewer than 200 measured departures—100100
JunFewer than 200 measured departures—7878
JulFewer than 200 measured departures—6262
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—5456
OctFewer than 200 measured departures—100102
NovFewer than 200 measured departures—119120
DecFewer than 200 measured departures—123124

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 80.4% 825
  • Delayed >15 min 18.8% 193
  • Cancelled 0.8% 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

4
Flight numbersBy direction DeparturesOn time
AS1042 SBP → SEA 346 79.8%
AS1042 SEA → SBP 346 79.7%
AS493 SBP → SEA 101 85.0%
AS493 SEA → SBP 101 79.2%

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
June 2026 18 −70.0% 0 94.4%
May 2026 38 −38.7% 0 76.3%
April 2026 42 −30.0% 0 97.6%
March 2026 28 −54.8% 0 82.1%
January 2026 12 −80.3% 0 41.7%
December 2025 61 −1.6% 1 75.4%
November 2025 60 +1.7% 0 83.3%
October 2025 60 +50.0% 2 83.3%
September 2025 54 2 92.6%
August 2025 62 0 66.1%
July 2025 62 0 69.4%
June 2025 60 0 63.3%
May 2025 62 0 82.3%
April 2025 60 0 85.0%
March 2025 62 0 82.3%
February 2025 55 1 80.0%
January 2025 61 1 91.8%
December 2024 62 0 83.9%
November 2024 59 1 93.2%
October 2024 40 0 80.0%

How to read this chart

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