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Route

Seattle → Santa Rosa

SEASeattleSeattle–Tacoma International Airport
STSSanta RosaCharles M. Schulz Sonoma County Airport
Distance
618 mi
Estimated flight time
~1h 45m

Same local time in Seattle and Santa Rosa.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

A couple of times a day

On average around 2 flights a day, observed from October 2025 to September 2026.

2
flights per day
2
busiest month · Oct
1
quietest month · Dec
1 hr 32 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

  1. 1Jan2026
  2. 2Feb
  3. 1.5Mar
  4. 2Apr
  5. 2May
  6. 2Jun
  7. 2Jul
  8. 2Aug
  9. 2Sep
  10. 2Oct2025
  11. 2Nov
  12. 1Dec

Airlines

Who flies it

Alaska Airlinesall year
Horizon Airwinter
SkyWest Airlinessummer

Through the day

Departure times

Local time in Seattle. Most departures between 10:00 and 13:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 1.5Mon
  2. 1.5Tue
  3. 1.3Wed
  4. 1.4Thu
  5. 1.6Fri
  6. 1.6Sat
  7. 1.6Sun

Fleet

Aircraft observed

  1. Boeing 737-800B73848%
  2. Embraer 175E75L45%
  3. Boeing 737 MAX 8B38M6%
  4. Boeing 737-700B7370%
  5. Cessna Citation XC7500%
All the numbers in a table
MonthPer daySeenAirlines
January 2026123
  • Horizon Air13×
  • Alaska Airlines10×
February 2026232
  • Horizon Air30×
  • Alaska Airlines2×
March 20261.543
  • Horizon Air32×
  • Alaska Airlines10×
April 2026244
  • Alaska Airlines22×
  • Horizon Air22×
May 2026255
  • Alaska Airlines26×
  • Horizon Air25×
  • SkyWest Airlines2×
June 2026250
  • Alaska Airlines28×
  • SkyWest Airlines11×
  • Horizon Air9×
July 2026257
  • Alaska Airlines30×
  • SkyWest Airlines27×
August 2026251
  • Alaska Airlines39×
  • SkyWest Airlines11×
September 2026257
  • Alaska Airlines56×
October 2025254
  • Alaska Airlines28×
  • Horizon Air26×
November 2025248
  • Alaska Airlines25×
  • Horizon Air17×
  • SkyWest Airlines6×
December 2025127
  • Alaska Airlines16×
  • Horizon Air10×

Airlines observed on this route

From observed callsign routes on SEA-STS - not a booking guarantee.

Alaska Airlines

AS · ASA

Hub: SEA Seattle

98 departure airportsView airline →

Horizon Air

QX · QXE

Hub: SEA Seattle

56 departure airportsView airline →

SkyWest Airlines

OO · SKW

Hub: ORD Chicago

249 departure airportsView airline →

About this route

  • Domestic route: both airports are in the same country.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Seattle: 132.
  • Direct destinations observed from Santa Rosa: 18.

The airports on this route

Seattle–Tacoma International Airport

Seattle, United StatesSEA / KSEA

International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft

52 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Charles M. Schulz Sonoma County Airport

Santa Rosa, United StatesSTS / KSTS

Regional airport · 18 direct destinations · 2 runways · longest runway 6,001 ft

72 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

SEA OAKOakland San Francisco Bay AirportOakland is about 63 mi from Santa Rosa.View route →SEA SFOSan Francisco International AirportSan Francisco is about 66 mi from Santa Rosa.View route →SEA SMFSacramento International AirportSacramento is about 67 mi from Santa Rosa.View route →SEA SJCMineta San Jose International AirportSan Jose is about 93 mi from Santa Rosa.View route →

About the route from Seattle to Santa Rosa

The observed direct connection between Seattle–Tacoma International Airport (SEA) and Charles M. Schulz Sonoma County Airport (STS) covers approximately 618 mi. The estimated flight time is around 1h 45m. Alaska Airlines, Horizon Air and SkyWest Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Seattle from Santa Rosa by air?
The great-circle distance between Seattle–Tacoma International Airport and Charles M. Schulz Sonoma County Airport is approximately 618 mi.
How long is the flight from Seattle to Santa Rosa?
Based on the distance, the estimated flight time is about 1h 45m. This is an estimate, not a schedule.
Is there a direct connection from Seattle to Santa Rosa?
Yes, a direct connection between SEA and STS has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Alaska Airlines, Horizon Air and SkyWest Airlines.
How often is there a flight from Seattle to Santa Rosa?
On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 541 observed flights. Mainly Alaska Airlines, Horizon Air, SkyWest Airlines. That is an observation, not a timetable.
What is the current time difference between Seattle and Santa Rosa?
Same local time in Seattle and Santa Rosa.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.