Dulles to Santa Rosa (IAD–STS) — Airlines, Schedules & Connections

IAD Airport Page →
2,419 mi airlines 2/wk
On-time Some delays Frequent delays
Flight Schedule 1 flight Verified 1h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
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TWY1026
TWY TWY
12:43 PM
EDT
2:53 PM
PDT
5h 10m
—
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...
Dulles to Santa Rosa
1 carrier, 2 flights/week nonstop.
1 Airlines 2 Flights/wk 2,419 mi 5h 10m nonstop -3h behind 25 1-stop hubs

IAD–STS is served by 1 airline with nonstop service. TWY leads the route. The flight covers 2,419 miles in approximately 5h 10m. Beyond nonstop, 25 hubs offer 1-stop connections.

Also explore IAD Routes STS Routes IAD Live Flights STS Live Flights IAD Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop IAD–STS service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
TWY TWY 1 – 5h10 66% – –
Alliance coverage
Unaffiliated: TWY (1 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, IAD to STS direction.
Mon
0
flights
Tue
0
flights
Wed
0
flights
Thu
1
flight
Fri
0
flights
Sat
0
flights
Sun
0
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
2
Outbound / wk
1
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAD to STS.
1-STOP
One-Stop Connections
25
Hubs
~6h
Fastest
~29h
Longest
OAK ~6h 53m DAL ~7h 14m SJC ~7h 15m MDW ~7h 23m VNY ~7h 33m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
439
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
IAD → STS
66%
Moderate delays possible. Allow buffer time.
Departing
66%
Return
STS → IAD
73%
Moderate delays possible. Allow buffer time.
Arriving
73%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-3h
Santa Rosa is 3 hours behind Dulles.
IAD: EDT · STS: PDT

When it's 6:00 PM in Dulles, it's 3:00 PM in Santa Rosa.
Distance & Flight Time
2,419 mi / 3,893 km
Nonstop flight time is approximately 5h 10m to 5h 25m.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–STS Quick Facts

Key statistics for the Dulles to Santa Rosa route.
Route details
Distance2,419 mi / 3,893 km
Flight time5h 10m to 5h 25m
Time difference-3 hours
Airlines (nonstop)1
Weekly flights2 out / 1 return
1-stop connections25 hubs
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: STS
Full nameCharles M. Schulz Sonoma County Airport
IATA / ICAOSTS / KSTS
TimezoneAmerica/Los_Angeles
Passengers/yr0.8M
Elevation128 ft / 39 m
FAQ

Frequently Asked Questions

Common questions about IAD to STS flights.
Nonstop flights from Washington Dulles International Airport to Charles M. Schulz Sonoma County Airport take approximately 5h 10m to 5h 25m. The route covers 2,419 miles.
1 airline operates nonstop service: TWY.
There are approximately 2 nonstop flights per week from IAD to STS. The return direction has about 1 weekly flights.
Yes, 1-stop connections are available through OAK, DAL, SJC, MDW, VNY, IND, SMF, BZN, HOU, BUR, SLC, SNA, ORD, BOS, SAT, AUS, PBI, SAN, SEA, DEN, LAX, PDX, LAS, PHX and PSP. These options provide additional schedule flexibility.
Santa Rosa is 3 hours behind Dulles.
Yes, return flights from STS to IAD are available. Use the direction toggle at the top to view the return schedule.
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 IAD to STS

Washington Dulles International Airport (IAD) and Charles M. Schulz Sonoma County Airport (STS) are connected by nonstop service from TWY. With 2 weekly departures, this is a regularly served route.

IAD to STS Flight Duration and Schedule

Nonstop flight time from IAD to STS ranges from 5 hours 10 minutes to 5 hours 25 minutes. The route covers a distance of 2,419 miles (3,893 km). There are approximately 2 weekly flights outbound and 1 return, totaling 3 flights per week in both directions.

Connecting Options and Alternatives

25 one-stop connections are available, with the fastest taking approximately 6 hours via OAK. Two-stop connections are also available via intermediate hubs.