Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
ONTSFOSat, 03 Oct
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fareUS$214United Airlines
Fastest1h 27mgate to gate
Options found29flights on this route
Find your flightONT → SFO
Available Flights & Fares
Compare fares, timings and baggage. Pick the flight that suits your trip.
Prices in USD
29 flight options
Fares are checked again before payment.
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Holiday Inn Hotel & Suites San Mateo-San Francisco SFO
330 N Bayshore Blvd, 94401
Room availability is checked live
$104per night+ taxes if applicable
1 Night • 3 Star
4.0Very GoodLive availability
Pullman San Francisco Bay
223 Twin Dolphin Dr, 94065
Room availability is checked live
$105per night+ taxes if applicable
1 Night • 4 Star
Qatar Airways
QR-2126
06:02
2026-10-03
Ontario (ONT)Ontario International
55H :33 M
2 Stops
SEA
· 7h 36m Seattle (SEA), United States
DOH
· 14h 50m Doha (DOH), Qatar
13:35
2026-10-05
SAN FRANCISCO (SFO)San Francisco International
Refundable 9 Seat Left Economy
Check-in: 2 Pieces
Type
Refundable
Fare Type
PublishNDC
2 Pieces 7 KG
$1,738
Flight DetailsONT to SFO - 55H :33 M
Baggage InfoCheck-in 2 Pieces - Cabin 7 KG
Fare RulesRefundable fare. Final rules are verified before booking.
Qatar Airways
QR-2020
11:13
2026-10-03
Ontario (ONT)Ontario International
50H :22 M
2 Stops
SEA
· 2h 29m Seattle (SEA), United States
DOH
· 14h 50m Doha (DOH), Qatar
13:35
2026-10-05
SAN FRANCISCO (SFO)San Francisco International
Refundable 9 Seat Left Economy
Check-in: 2 Pieces
Type
Refundable
Fare Type
PublishNDC
2 Pieces 7 KG
$1,738
Flight DetailsONT to SFO - 50H :22 M
Baggage InfoCheck-in 2 Pieces - Cabin 7 KG
Fare RulesRefundable fare. Final rules are verified before booking.
Qatar Airways
QR-2127
14:13
2026-10-03
Ontario (ONT)Ontario International
71H :22 M
2 Stops
SEA
· 23h 29m Seattle (SEA), United States
DOH
· 14h 50m Doha (DOH), Qatar
13:35
2026-10-06
SAN FRANCISCO (SFO)San Francisco International
Refundable 9 Seat Left Economy
Check-in: 2 Pieces
Type
Refundable
Fare Type
PublishNDC
2 Pieces 7 KG
$1,743
Flight DetailsONT to SFO - 71H :22 M
Baggage InfoCheck-in 2 Pieces - Cabin 7 KG
Fare RulesRefundable fare. Final rules are verified before booking.
Qatar Airways
QR-7779
08:25
2026-10-03
Ontario (ONT)Ontario International
53H :10 M
2 Stops
DFW
· 4h 46m Dallas (DFW), United States
DOH
· 14h 50m Doha (DOH), Qatar
13:35
2026-10-05
SAN FRANCISCO (SFO)San Francisco International
Refundable 9 Seat Left Economy
Check-in: 2 Pieces
Type
Refundable
Fare Type
PublishNDC
2 Pieces 7 KG
$1,853
Flight DetailsONT to SFO - 53H :10 M
Baggage InfoCheck-in 2 Pieces - Cabin 7 KG
Fare RulesRefundable fare. Final rules are verified before booking.
No flights match the selected filters. Clear filters or open full search.
Today's Airfare Highlights
Selected flight highlights for 03 Oct 2026.
Lowest fare$214United Airlines08:03
Earliest departure$369Delta Air Lines06:00
Shortest duration$214United Airlines08:03
Night
00:00-05:59
No optionOpen full search for moreMorning
06:00-11:59
$214United Airlines at 08:03Afternoon
12:00-17:59
$214United Airlines at 13:52Evening
18:00-23:59
$369Delta Air Lines at 18:00
Departure & Arrival Airport Details
Ontario (ONT)
Ontario International
United States
GMT -8
Latitude: 34.055999755859375
Longitude: -117.60099792480469
San Francisco (SFO)
San Francisco International
United States
GMT -8
Latitude: 37.61899948120117
Longitude: -122.375
Distance: Ontario (ONT), United States to San Francisco (SFO), United States - 584.78 km
Flights shown for 03 Oct 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
12OctColumbus DayMonday · in 29 daysPeak
12OctColumbus DayMonday · in 29 daysPeak
12OctIndigenous Peoples' DayMonday · in 29 daysPeak
11NovVeterans DayWednesday · in 59 days
26NovThanksgiving DayThursday · in 74 days
25DecChristmas DayFriday · in 103 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Ontario to San Francisco
Every option we can actually book for you, compared on price and journey time.
Connecting flight₹21,408Longer — includes a stop25 options
Air distance is about 585 km. FlyX does not currently sell a bus on this pair. 5 airlines operate this route.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Ontario to San Francisco
Compare fares, stops, baggage and refundability across the airlines flying this route.
AL
Alaska Airlines Flights
from $43312 flights
Fares from
$433
Non-stop
None in these results
Departures
12 — compare timings in the list above
QA
Qatar Airways Flights
from $1,7387 flights
Fares from
$1,738
Non-stop
None in these results
Departures
7 — compare timings in the list above
DE
Delta Air Lines Flights
from $3695 flights
Fares from
$369
Non-stop
None in these results
Departures
5 — compare timings in the list above
UN
United Airlines Flights
from $2144 flights
Fares from
$214
Non-stop
4 in these results
Departures
4 — compare timings in the list above
Route Overview & Flight Facts
Fastest flight duration
1h 27m · United Airlines
First departure of the day
06:00 · Delta Air Lines
Last departure of the day
18:00 · Delta Air Lines
Options in this snapshot
29
Direct / non-stop options
4
Airport codes
Ontario–ONT, San Francisco–SFO
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
Flight Schedule, Timings & Airfare Insights
Daily Flight Schedule & Travel Duration
Around 29 flights appear in the dated route snapshot, including 4 non-stop options. Departures run through the day — the first flight leaves around 06:00 and the last around 18:00. The fastest flight takes about 1h 27m.
Morning vs Evening Departure Fares
Lowest fare by departure window: Morning from $214, Afternoon from $214, Evening from $369. These observations do not predict the cheapest departure window on other dates.
Cheapest Airfare & Best Time to Book
Search your travel dates to compare current fares — prices update continuously with airline inventory.
One-Way vs Round-Trip Fare Comparison
Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.
Online Web Check-In & Boarding Pass
Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.
How to Book Cheap Flights on FlyX
1
Enter your travel details
Choose one-way or round-trip, pick your dates and travellers in the search form above.
2
Compare search results
Sort or filter the Ontario–San Francisco results by price, departure time, stops and airline.
3
Open the fare choices
Check baggage allowance and refundability for each fare type before continuing.
4
Review the final price
Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.
5
Pay securely
UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.
Why Book Your Flight with FlyX?
Compare the available Ontario to San Francisco options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.
Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support
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Check coupon eligibility and the final discount on the review page before you pay. View full terms.
Frequently Asked Questions
Is it worth booking Ontario to San Francisco flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. Across the dates currently loaded for Ontario to San Francisco, Saturday shows the lowest fare at $214. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Ontario from San Francisco by air?
The direct air distance between Ontario (ONT) and San Francisco (SFO) is about 585 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from ONT to SFO?
Yes. 4 non-stop flights are showing on Ontario to San Francisco for the dates currently loaded. Use the Stops filter to see only those.
Which airlines fly Ontario to San Francisco?
Alaska Airlines, Qatar Airways, Delta Air Lines and United Airlines are showing on this route for the dates currently loaded. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from Ontario to San Francisco?
The quickest non-stop Ontario to San Francisco flight currently loaded takes about 1h 27m. Across the non-stop options showing, block time ranges from 1h 27m to 1h 47m. Journeys with a stop take longer, since the total includes the layover.
What is the baggage allowance on Ontario to San Francisco flights?
Allowance is set by the airline and the fare you pick, not by the route. Fares showing right now include 2 Pieces. Cabin baggage is counted separately, and the exact allowance for the fare you choose is shown in the fare conditions before payment.
What is the cheapest Ontario to San Francisco flight fare?
The lowest fare showing on Ontario to San Francisco for the dates currently loaded is $214. Fares on the same dates run up to $1,853, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
What time do Ontario to San Francisco flights depart?
For the dates currently loaded the first departure is around 06:00 and the last is around 18:00, local time at Ontario. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay - if it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes ONT–SFO, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price — run a search to see what is available for your own dates.
Last checked .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.
The ONT to SFO cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 584.78 km.
Before you book
Compare nearby dates
The date strip opens the complete search result for the route and selected date.
Use filters
Shortlist by price, stops, departure time and refundable fare preference.
Check fare choices
Continue to Booking opens the verified fare choices, including baggage and refundability, before review.
Lowest Ontario to San Francisco airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
$214
03/10/2026
United Airlines
08:03
Cheapest Airfare Within 30 Days
$210
13/10/2026
United Airlines
08:03
Cheapest Airfare Within 90 Days
$203
12/12/2026
United Airlines
08:03
Book Ontario to San Francisco Flight Tickets on FlyX
Planning to fly from Ontario to San Francisco? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Ontario to San Francisco Flight Distance, Duration and Time
The aerial distance between Ontario and San Francisco is approximately 585 KM. The flight duration ranges from 1H :27 M up to 71H :22 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Ontario to San Francisco Flight Schedule and Timing
Around 29 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Ontario at 06:00, while the last night flight leaves at 18:00. Flights depart from Ontario International and land at San Francisco International.
Flight Route Details & Analysis
Flight Details
Information
Route
Ontario to San Francisco
Aerial Distance
585 KM
Flight Duration
1H :27 M - 71H :22 M
Airport Codes
Ontario - ONT, San Francisco - SFO
Total Flights Available
29 flights (4 direct)
First Flight Departure
Departs at 06:00
Last Flight Departure
Departs at 18:00
Early Morning Flights (12 AM - 8 AM)
8 direct/indirect flights
Morning Flights (8 AM - 12 PM)
9 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
9 direct/indirect flights
Evening Flights (4 PM - 8 PM)
3 direct/indirect flights
Night Flights (8 PM - 12 AM)
0 direct/indirect flights
Airport Information & Terminals
ONT: Ontario airport. Ontario airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
SFO: San Francisco International Airport. SFO connects by BART to the city, while cabs or app rides are easier for Silicon Valley, family luggage or late arrivals. Fog and bridge traffic can affect plans.
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Ontario International
