Charles M. Schulz Sonoma County Airport
Santa Rosa, United StatesSTS / KSTS
Regional airport · 18 direct destinations · 2 runways · longest runway 6,001 ft
45 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Santa Rosa → Seattle
STS
Santa RosaCharles M. Schulz Sonoma County Airport
Santa RosaCharles M. Schulz Sonoma County AirportSEASeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International Airport- Distance
- 618 mi
- Estimated flight time
- ~1h 45m
Same local time in Santa Rosa and Seattle.
Observed nonstop
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
- 1Jan2026
- 2Feb
- 2Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 2Aug
- 2Sep
- 2Oct2025
- 2Nov
- 1Dec
In December 2025, January 2026 we saw less traffic at Santa Rosa in general than usual; compare that month with care.
Airlines
Who flies it
Alaska Airlinesall year
Horizon Airwinter
SkyWest Airlinessummer
Through the day
Departure times
Local time in Santa Rosa. Most departures between 13:00 and 16:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 1.7Mon
- 1.7Tue
- 1.4Wed
- 1.6Thu
- 1.7Fri
- 1.8Sat
- 1.5Sun
Fleet
Aircraft observed
- Boeing 737-800B73848%
- Embraer 175E75L44%
- Boeing 737 MAX 8B38M8%
- Bombardier Challenger 350CL350%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 30 |
|
| February 2026 | 2 | 36 |
|
| March 2026 | 2 | 47 |
|
| April 2026 | 2 | 53 |
|
| May 2026 | 2 | 57 |
|
| June 2026 | 2 | 49 |
|
| July 2026 | 2 | 59 |
|
| August 2026 | 2 | 52 |
|
| September 2026 | 2 | 55 |
|
| October 2025 | 2 | 58 |
|
| November 2025 | 2 | 55 |
|
| December 2025 | 1 | 39 |
|
Airlines observed on this route
From observed callsign routes on STS-SEA - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The 4th longest observed direct route from STS, out of 18.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Santa Rosa: 18.
- Direct destinations observed from Seattle: 132.
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
48 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
OAK SEAOakland San Francisco Bay AirportOakland is about 63 mi from Santa Rosa.View route →SFO SEASan Francisco International AirportSan Francisco is about 66 mi from Santa Rosa.View route →SMF SEASacramento International AirportSacramento is about 67 mi from Santa Rosa.View route →SJC SEAMineta San Jose International AirportSan Jose is about 93 mi from Santa Rosa.View route →
About the route from Santa Rosa to Seattle
The observed direct connection between Charles M. Schulz Sonoma County Airport (STS) and Seattle–Tacoma International Airport (SEA) 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 Santa Rosa from Seattle by air?
- The great-circle distance between Charles M. Schulz Sonoma County Airport and Seattle–Tacoma International Airport is approximately 618 mi.
- How long is the flight from Santa Rosa to Seattle?
- 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 Santa Rosa to Seattle?
- Yes, a direct connection between STS and SEA 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 Santa Rosa to Seattle?
- On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 590 observed flights. Mainly Alaska Airlines, Horizon Air, SkyWest Airlines. That is an observation, not a timetable.
- What is the current time difference between Santa Rosa and Seattle?
- Same local time in Santa Rosa and Seattle.
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.