flıghtmap
SkyView
Hotels
FlightsGuidesMoreMembership
Log In

Direct flights from Ontario to Santa Rosa

Did you mean Flights from Santa Rosa to Ontario?

Flightmap/Flights from ONT/ONT to STS

Ontario

United States

ONT

Ontario International Airport

Santa Rosa

United States

STS

Charles M. Schulz Sonoma County Airport

Route
Nonstop service available
Distance
423 miles
Marketing airlines
1 airline
Aircraft
2 aircraft types
Dates
Oct 19, 2026 – Aug 9, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Explore flight routesCompare transfer partnersLearn how to book with points

Explore these airports and cities

  • Flights from ONT
  • Flights to STS

Ontario to Santa Rosa route overview

Ontario International Airport (ONT) serves Ontario; Charles M. Schulz Sonoma County Airport (STS) serves Santa Rosa.

The airports are 423 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from ONT to STS.

Marketing airlines listed in the current schedule, including codeshare sellers, are Alaska Airlines (AS). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Aug 9, 2027.

Marketing airlines on the Ontario to Santa Rosa route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

  • Alaska Airlines (AS)Codeshare only

Airline alliance affiliations represented: Oneworld

Aircraft flying from ONT to STS

Frequently asked questions

Which airports serve the Ontario to Santa Rosa route?

Ontario International Airport (ONT) is the origin airport and Charles M. Schulz Sonoma County Airport (STS) is the destination airport.

How far is Santa Rosa from Ontario?

ONT and STS are approximately 423 miles apart by great-circle distance.

Are there direct flights from ONT to STS?

Yes. Roame's current schedule feed shows nonstop service from ONT to STS.

Which airlines market flights from ONT to STS?

Marketing airlines listed in the current schedule, including codeshare sellers, are Alaska Airlines (AS). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from ONT to STS?

Aircraft listed in the current schedule include Embraer 175 (short wing) (E75) and JET.

More routes from Ontario

  • PHXPhoenixUnited States
  • SEASeattleUnited States
  • DFWDallas-Fort WorthUnited States
  • SLCSalt Lake CityUnited States
  • LASLas VegasUnited States
  • DENDenverUnited States
  • SMFSacramentoUnited States
  • SFOSan FranciscoUnited States
  • OAKOaklandUnited States
  • ATLAtlantaUnited States
  • SJCSan JoseUnited States
  • PDXPortlandUnited States
Get the app
Download on the App Store
Flights
SearchDiscoverSkyViewFlightMapsNEW
Hotels
SearchDeals on Stays
About
MembershipAbout usGift CardsGiveawaysHow it works
Resources
Credit CardsGuidesNewsletterRSS FeedAdvertise with usBecome an affiliate
Support
FAQDirectoryHelp centerContact usTerms of servicePrivacy policy
Get the app
Download on the App Store
Follow us
®

The fastest search engine for points travel.

© Copyright 2026 Roame Holdings, Inc. All Rights Reserved.
Sign Up
SearchGuides