Ontario to Santa Rosa (ONT–STS) — Airlines, Schedules & Connections

ONT Airport Page →
423 mi airlines charter/private 7/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 40m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
AS3086
AS Alaska
E75
6:43 PM
PDT T2
8:14 PM
PDT
1h 31m
—
M T W T F S S
Prices
✓
←
AS3086
AS Alaska
E75
4:35 PM
PDT
6:03 PM
PDT
1h 28m
—
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
LAS Las Vegas 3h 38m F9TIVWN → ASEJAJRE Las Vegas (LAS) to Santa Rosa flights
PHX Phoenix 4h 27m AAPDWN → AAPD Phoenix (PHX) to Santa Rosa flights
PDX Portland 5h 23m AS → AS Portland (PDX) to Santa Rosa flights
SEA Seattle 5h 51m ASDLF9 → ASAYJL Seattle (SEA) to Santa Rosa flights
DFW Dallas-Fort Worth 11h 14m AABAF9 → AA Dallas-Fort Worth (DFW) to Santa Rosa flights
DEN Denver 14h 58m ACF9G6 → WN Denver (DEN) to Santa Rosa flights
BUR Burbank ~3h 30m → ASWN Burbank (BUR) to Santa Rosa flights
SMF Sacramento ~3h 36m WN → Sacramento (SMF) to Santa Rosa flights
SNA Santa Ana ~4h 7m → AS Santa Ana (SNA) to Santa Rosa flights
BOI Boise ~5h AS → Boise (BOI) to Santa Rosa flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Ontario to Santa Rosa
1 carrier, 7 flights/week nonstop.
1 Airlines 423 mi 1h 31m nonstop

ONT–STS is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 423 miles in approximately 1h 31m. Beyond nonstop, 1-stop connecting options are also available.

Also explore ONT Routes STS Routes ONT Live Flights STS Live Flights ONT Delays
All flights from Santa Rosa (STS) Santa Rosa to Ontario flights
Carriers on this route

Airline Landscape

All carriers operating nonstop ONT–STS service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 7 E75 1h31 100% Oneworld –
Aircraft on this route
E75 Embraer E175 – AS
Alliance coverage
Oneworld: AS (7 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, ONT to STS direction.
Mon
1
flight
Tue
1
flight
Wed
1
flight
Thu
1
flight
Fri
1
flight
Sat
1
flight
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
7
Outbound / wk
7
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for ONT to STS.
1-STOP
One-Stop Connections
10
Hubs
~3h
Fastest
~14h
Longest
BUR ~3h 30m SMF ~3h 36m LAS ~3h 38m SNA ~4h 7m PHX ~4h 27m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
245
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
ONT → STS
100%
Generally reliable. Most flights run on time.
Departing
100%
Return
STS → ONT
68%
Moderate delays possible. Allow buffer time.
Arriving
68%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ONT delays →
Alternatives

Other ways to reach Santa Rosa from Ontario

Nearby airports with service to Charles M. Schulz Sonoma County Airport.
Metric ONT→STS SNA→STS LGB→STS
Distance from ONT – 30 mi 36 mi
Nonstop airlines 1 5 2
Weekly flights 7 14 1
Flight time 1h 31m 1h 47m 1h 2m
Departure OTP 100% – –
Santa Ana (SNA) to Santa Rosa flights · Long Beach (LGB) to Santa Rosa flights · Burbank (BUR) to Santa Rosa flights
Airports within 200 miles of ONT with service to Charles M. Schulz Sonoma County Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Santa Rosa is 0 hours the same as Ontario.
ONT: PDT · STS: PDT

When it's 6:00 PM in Ontario, it's 6:00 PM in Santa Rosa.
Distance & Flight Time
423 mi / 681 km
Nonstop flight time is approximately 1h 31m gate to gate.
Facts

ONT–STS Quick Facts

Key statistics for the Ontario to Santa Rosa route.
Route details
Distance423 mi / 681 km
Flight time1h 31m
Time difference0 hours
Airlines (nonstop)1
Weekly flights7 out / 7 return
1-stop connectionsAvailable
Origin: ONT
Full nameOntario International Airport
IATA / ICAOONT / KONT
TimezoneAmerica/Los_Angeles
Passengers/yr7.0M
Elevation944 ft / 288 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 ONT to STS flights.
Nonstop flights from Ontario International Airport to Charles M. Schulz Sonoma County Airport take about 1h 31m gate to gate. The route covers 423 miles.
1 airline operates flights from ONT to STS: Alaska Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Harry Reid, Phoenix Sky Harbor and Portland.
Yes, return flights from STS to ONT are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include SNA, LGB and BUR. 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 ONT to STS

Ontario International Airport (ONT) and Charles M. Schulz Sonoma County Airport (STS) are connected by nonstop service from Alaska Airlines. With 7 weekly departures, this is a regularly served route.

ONT to STS Flight Duration and Schedule

Nonstop flight time from ONT to STS is about 1 hours 31 minutes gate to gate. The route covers a distance of 423 miles (681 km). There are approximately 7 weekly flights outbound and 7 return, totaling 14 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Harry Reid, Phoenix Sky Harbor and Portland. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Santa Ana (SNA), Long Beach (LGB) and Burbank (BUR).