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Direct flights from San Francisco to Ontario

Did you mean Flights from Ontario to San Francisco?

Flightmap/Flights from SFO/SFO to ONT

San Francisco

United States

SFO

San Francisco International Airport

Ontario

United States

ONT

Ontario International Airport

Route
Nonstop service available
Distance
363 miles
Marketing airlines
7 airlines
Aircraft
11 aircraft types
Dates
Oct 19, 2026 – Oct 17, 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.

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Explore these airports and cities

  • Flights from SFO
  • Flights to ONT
  • Award flights to San Francisco

San Francisco to Ontario route overview

San Francisco International Airport (SFO) serves San Francisco; Ontario International Airport (ONT) serves Ontario.

The airports are 363 miles apart by great-circle distance.

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

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC), Copa Airlines (CM), Emirates (EK), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the San Francisco to Ontario 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.

  • Air Canada (AC)Codeshare only
  • Copa Airlines (CM)Codeshare only
  • Emirates (EK)Codeshare only
  • Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from SFO to ONT

Frequently asked questions

Which airports serve the San Francisco to Ontario route?

San Francisco International Airport (SFO) is the origin airport and Ontario International Airport (ONT) is the destination airport.

How far is Ontario from San Francisco?

SFO and ONT are approximately 363 miles apart by great-circle distance.

Are there direct flights from SFO to ONT?

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

Which airlines market flights from SFO to ONT?

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC), Copa Airlines (CM), Emirates (EK), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from SFO to ONT?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), Embraer 175 (long wing) (E7W) and JET.

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