Santa Rosa to Seattle (STS–SEA) — Airlines, Schedules & Connections

STS Airport Page →
618 mi airlines 18/wk
On-time Some delays Frequent delays
Flight Schedule 7 flights Verified 8m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
AS2344
AS Alaska
E75
11:15 AM
PDT
1:17 PM
MDT
2h 2m
M T W T F S S
Prices
AS1481
AS Alaska
73H
6:53 PM
PDT
8:58 PM
MDT
2h 5m
M T W T F S S
Prices
AS3037
AS Alaska
E75L
7:57 PM
PDT
10:05 PM
MDT
2h 8m
M T W T F S S
Prices
AS2049
AS Alaska
E75
8:26 AM
MDT
10:30 AM
PDT
2h 4m
M T W T F S S
Prices
AS2344
AS Alaska
E75
9:11 AM
MDT
10:51 AM
PDT
2h 40m
M T W T F S S
Prices
AS1480
AS Alaska
73H
4:00 PM
MDT
6:01 PM
PDT
2h 1m
M T W T F S S
Prices
AS2068
AS Alaska
E75
9:43 PM
MDT
11:25 PM
PDT
2h 42m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Santa Rosa to Seattle
1 carrier, 18 flights/week nonstop.
1 Airlines 18 Flights/wk 618 mi 2h 2m nonstop +1h ahead 18 1-stop hubs

STS–SEA is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 618 miles in approximately 2h 2m. Beyond nonstop, 18 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop STS–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 18 73H, E75, E75L 2h02-2h08 Oneworld
Aircraft on this route
73H Boeing 737-800 – AS
E75 Embraer E175 – AS
E75L Embraer E175 Long Wing – AS
Alliance coverage
Oneworld: AS (18 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STS to SEA direction.
Mon
3
flights
Tue
3
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
3
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
3
Nonstop flights
18
Outbound / wk
27
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STS to SEA.
1-STOP
One-Stop Connections
18
Hubs
~4h
Fastest
~21h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
510
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
STS → SEA
85%
Generally reliable. Most flights run on time.
Arriving
85%
Return
SEA → STS
80%
Generally reliable. Most flights run on time.
Departing
80%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →

Other ways to reach Seattle from Santa Rosa

Nearby airports with service to Seattle–Tacoma International Airport.
Metric STS→SEA CCR→SEA OAK→SEA
Distance from STS 55 mi 63 mi
Nonstop airlines 1 1 4
Weekly flights 18 1 60
Flight time 2h 2m 0h 28m 0h 56m
Airports within 200 miles of STS with service to Seattle–Tacoma International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Seattle is 1 hour ahead of Santa Rosa.
STS: PDT · SEA: MDT

When it's 6:00 PM in Santa Rosa, it's 7:00 PM in Seattle.
Distance & Flight Time
618 mi / 995 km
Nonstop flight time is approximately 2h 2m to 2h 8m.
Getting from SEA

Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.

Seattle Climate

Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.

Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.

STS–SEA Quick Facts

Key statistics for the Santa Rosa to Seattle route.
Route details
Distance618 mi / 995 km
Flight time2h 2m to 2h 8m
Time difference+1 hour
Airlines (nonstop)1
Weekly flights18 out / 27 return
1-stop connections18 hubs
Origin: STS
IATA / ICAOSTS / KSTS
TimezoneAmerica/Los_Angeles
Passengers/yr0.8M
Elevation128 ft / 39 m
Destination: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m

Frequently Asked Questions

Common questions about STS to SEA flights.
Nonstop flights from Charles M. Schulz Sonoma County Airport to Seattle–Tacoma International Airport take approximately 2h 2m to 2h 8m. The route covers 618 miles.
1 airline operates nonstop service: Alaska Airlines.
There are approximately 18 nonstop flights per week from STS to SEA. The return direction has about 27 weekly flights.
Yes, 1-stop connections are available through BFI, SLC, PSP, SAT, DAL, MDW, IAD, FLL, BUR, LAX, PDX, ONT, SAN, HND, SNA, LAS, DEN and PHX. These options provide additional schedule flexibility.
Seattle is 1 hour ahead of Santa Rosa.
Yes, return flights from SEA to STS are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include CCR, OAK and SFO. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STS to SEA

Charles M. Schulz Sonoma County Airport (STS) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines. With 18 weekly departures, this is a well served route.

STS to SEA Flight Duration and Schedule

Nonstop flight time from STS to SEA ranges from 2 hours 2 minutes to 2 hours 8 minutes. The route covers a distance of 618 miles (995 km). There are approximately 18 weekly flights outbound and 27 return, totaling 45 flights per week in both directions.

Connecting Options and Alternatives

18 one-stop connections are available, with the fastest taking approximately 4 hours via BFI. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Concord (CCR), Oakland (OAK) and San Francisco (SFO).