Which airports can I use when flying from San Antonio to Ontario?

Flights from San Antonio to Ontario usually depart from San Antonio (SAT) and arrive at Ontario (ONT).

What cabin classes can I book on flights from San Antonio to Ontario?

Only Economy Class is available on flights from San Antonio to Ontario.

Which airports do connecting flights from San Antonio to Ontario pass through?

One-stop flights from San Antonio to Ontario most commonly connect through: • Phoenix Sky Harbor Intl (PHX) - 47% of one-stop connections • Denver Intl (DEN) - 37% of one-stop connections • Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections • Dallas/Fort Worth (DFW) - 1% of one-stop connections

Can I save money by using flexible dates for flights from San Antonio to Ontario?

Yes. Flexible dates can save you up to 33% on flights from San Antonio to Ontario. Tuesday is the cheapest departure day at $272 round-trip on average, while Saturday is the most expensive at $402, a difference of $130. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

How expensive are last-minute San Antonio to Ontario flights?

Last-minute fares on this route (booked within two weeks of departure) run 8% above the $371 route average. Book 16 weeks before departure for the lowest fares.

How long is a flight from San Antonio to Ontario?

A nonstop flight from San Antonio to Ontario takes 00m, covering 1,163 miles.

Do I need a passport to fly from San Antonio to Ontario?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

How are flight prices from San Antonio to Ontario looking right now?

One-way fares from San Antonio to Ontario are currently higher than usual. Average one-way flight prices are about $233, which is 21% above the typical average for this route.

How much time can I save by choosing a different layover airport from San Antonio to Ontario?

Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 4h 50m, compared with 5h 22m via Houston George Bush Intcntl (IAH) and 5h 32m via Dallas Love Field (DAL).

What is the time difference between San Antonio and Ontario?

Ontario is 2 hours behind San Antonio (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include: • Fox • Thrifty • Europcar • Dollar • Alamo

How much should I expect to pay for a San Antonio to Ontario flight?

Round-trip flights from San Antonio to Ontario range from $286 to $430, with an average of $371 over the past 12 months. Anything below $286 counts as a good deal.

How much is a round-trip flight from San Antonio to Ontario?

Round-trip flights from San Antonio to Ontario typically range from $286 to $430. The lowest price found in the past 5 days was $177, on Frontier.

What's the cheapest day of the week to fly from San Antonio to Ontario?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from San Antonio to Ontario. It’s 27% cheaper than the average day, while Saturday is the most expensive, with prices 8% higher.

What’s the cheapest month to fly from San Antonio to Ontario?

•September is the cheapest month to fly from San Antonio to Ontario at $226 round-trip. •June ($421) and May ($405) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 86% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Antonio to Ontario the cheapest?

Flights from San Antonio to Ontario are cheapest 16 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Which airline is the cheapest to fly from San Antonio to Ontario?

Frontier ($177) and American Airlines ($353) are the cheapest airlines to fly round-trip from San Antonio to Ontario according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from San Antonio to Ontario?

Phoenix Sky Harbor Intl (PHX) is the most popular layover for the San Antonio to Ontario route. 47% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via PHX.

What is the cheapest layover airport when flying from San Antonio to Ontario?

Flights via Dallas Love Field (DAL) offer the most affordable fares, with an average round-trip price of $297. Based on KAYAK data over the past 3 months.

When flying from San Antonio to Ontario which airport offers the shortest layover?

Phoenix Sky Harbor Intl (PHX) had the shortest average connection time for San Antonio to Ontario layovers at 2h 54m over the past 3 months.

$92 CHEAP FLIGHTS from San Antonio to Ontario (SAT - ONT)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$177

Typical prices: $286-$430

Frontier

Sat 11/3Wed 11/7

SAT - ONT • 1 stop

Cheapest one-way

$92

Typical prices: $145-$260

Frontier

Sat 10/13

SAT - ONT • 1 stop

Nonstop flights

Not available

There are currently no direct flights between San Antonio and Ontario. You'll need to take a connecting flight to reach the destination.

Insights

When to book

16 weeks

in advance

Our data shows that travelers who book at least 16 weeks in advance save around 28% compared to booking last minute.

Insights

When to travel

September

Cheapest • 39% price drop

October

Most popular

Good to know

Top layover airports

Dallas Love Field (DAL)

Cheapest • Avg $297 (round-trip)

Phoenix Sky Harbor Intl (PHX)

Shortest trip • 4h 50m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ontario!

Flight Deals

Cheap Flights from San Antonio to Ontario (SAT-ONT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from San Antonio to Ontario

Tue, Nov 3 - Sat, Nov 7

8:20 pm - 10:35 amSAT San Antonio-ONT Ontario

16h 15m1 stop Denver Intl

6:25 am - 7:25 pmONT Ontario-SAT San Antonio

11h 00m1 stop Denver Intl

$177Frontier

Wed, Oct 28 - Sat, Nov 7

8:20 pm - 11:51 pmSAT San Antonio-ONT Ontario

5h 31m1 stop Denver Intl

6:25 am - 7:25 pmONT Ontario-SAT San Antonio

11h 00m1 stop Denver Intl

$179Frontier

Tue, Oct 20 - Tue, Oct 27

8:21 pm - 10:29 amSAT San Antonio-ONT Ontario

16h 08m1 stop Denver Intl

6:25 am - 7:25 pmONT Ontario-SAT San Antonio

11h 00m1 stop Denver Intl

$182Frontier

Sat, Oct 24 - Sat, Oct 31

8:17 am - 6:43 pmSAT San Antonio-ONT Ontario

12h 26m1 stop Phoenix Sky Harbor Intl

6:15 am - 4:33 pmONT Ontario-SAT San Antonio

8h 18m1 stop Phoenix Sky Harbor Intl

$353American Airlines

Wed, Dec 30 - Wed, Jan 13

3:35 pm - 9:57 pmSAT San Antonio-ONT Ontario

8h 22m1 stop Phoenix Sky Harbor Intl

9:28 am - 11:05 pmONT Ontario-SAT San Antonio

11h 37m1 stop Phoenix Sky Harbor Intl

$353American Airlines

Sat, Oct 24 - Sat, Oct 31

6:35 am - 12:36 pmSAT San Antonio-ONT Ontario

8h 01m1 stop Salt Lake City

6:00 am - 1:40 pmONT Ontario-SAT San Antonio

5h 40m1 stop Salt Lake City

$354Delta

Sat, Oct 24 - Sat, Oct 31

6:00 am - 9:35 amSAT San Antonio-ONT Ontario

5h 35m1 stop Dallas/Fort Worth

6:00 am - 1:15 pmONT Ontario-SAT San Antonio

5h 15m1 stop Dallas/Fort Worth

$354American Airlines

Mon, Nov 9 - Thu, Nov 12

12:45 pm - 4:24 pmSAT San Antonio-ONT Ontario

5h 39m1 stop Salt Lake City

5:04 pm - 12:28 amONT Ontario-SAT San Antonio

5h 24m1 stop Salt Lake City

$355Delta

Wed, Oct 28 - Sat, Nov 7

6:30 pm - 10:05 pmSAT San Antonio-ONT Ontario

5h 35m2 stops El Paso Phoenix Sky Harbor Intl

9:05 am - 6:25 pmONT Ontario-SAT San Antonio

7h 20m2 stops Las Vegas Harry Reid Intl Denver Intl

$366Southwest

Sat, Feb 20 - Tue, Feb 23

12:40 pm - 6:35 pmSAT San Antonio-ONT Ontario

7h 55m2 stops Denver Intl Las Vegas Harry Reid Intl

9:00 am - 6:05 pmONT Ontario-SAT San Antonio

7h 05m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$383Southwest

Recent last minute flight deals from San Antonio to Ontario

Sun, Oct 4 - Sat, Oct 31

8:20 pm - 11:47 pmSAT San Antonio-ONT Ontario

5h 27m1 stop Denver Intl

11:52 am - 7:25 pmONT Ontario-SAT San Antonio

5h 33m1 stop Denver Intl

$307Frontier

Sat, Oct 3 - Sat, Oct 24

8:20 pm - 11:47 pmSAT San Antonio-ONT Ontario

5h 27m1 stop Denver Intl

11:52 am - 7:26 pmONT Ontario-SAT San Antonio

5h 34m1 stop Denver Intl

$343Frontier

Sun, Oct 4 - Mon, Oct 26

8:20 pm - 11:47 pmSAT San Antonio-ONT Ontario

5h 27m1 stop Denver Intl

2:28 pm - 9:49 pmONT Ontario-SAT San Antonio

5h 21m1 stop Las Vegas Harry Reid Intl

$343Frontier

Thu, Oct 1 - Sat, Oct 3

8:56 pm - 11:05 pmSAT San Antonio-ONT Ontario

28h 09m2 stops Mexico City Benito Juarez Guadalajara Miguel Hidal

11:45 am - 7:25 pmONT Ontario-SAT San Antonio

5h 40m1 stop Denver Intl

$636Multiple Airlines

Wed, Sep 30 - Fri, Oct 2

8:56 pm - 11:05 pmSAT San Antonio-ONT Ontario

28h 09m2 stops Mexico City Benito Juarez Guadalajara Miguel Hidal

11:45 am - 7:25 pmONT Ontario-SAT San Antonio

5h 40m1 stop Denver Intl

$638Multiple Airlines

Thu, Oct 1 - Sat, Oct 3

8:56 pm - 11:05 pmSAT San Antonio-ONT Ontario

28h 09m2 stops Mexico City Benito Juarez Guadalajara Miguel Hidal

11:45 am - 7:25 pmONT Ontario-SAT San Antonio

5h 40m1 stop Denver Intl

$661Multiple Airlines

Sun, Oct 4 - Sat, Oct 31

3:35 pm - 9:15 pmSAT San Antonio-ONT Ontario

7h 40m2 stops Los Angeles Sacramento Intl

5:40 am - 3:40 pmONT Ontario-SAT San Antonio

8h 00m2 stops Las Vegas Harry Reid Intl Dallas Love Field

$693Southwest

Wed, Sep 30 - Wed, Oct 21

5:00 am - 12:06 pmSAT San Antonio-ONT Ontario

9h 06m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

4:29 pm - 10:59 pmONT Ontario-SAT San Antonio

4h 30m1 stop Phoenix Sky Harbor Intl

$696American Airlines

Wed, Sep 30 - Wed, Oct 28

5:00 am - 12:06 pmSAT San Antonio-ONT Ontario

9h 06m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

9:41 am - 4:33 pmONT Ontario-SAT San Antonio

4h 52m1 stop Phoenix Sky Harbor Intl

$696American Airlines

Thu, Oct 1 - Sat, Oct 3

3:20 pm - 9:10 pmSAT San Antonio-ONT Ontario

7h 50m2 stops Dallas Love Field Oakland

5:30 am - 4:05 pmONT Ontario-SAT San Antonio

8h 35m2 stops Phoenix Sky Harbor Intl Denver Intl

$1,087Southwest

Booking Insights

Price, demand and travel trends for San Antonio to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from San Antonio to Ontario? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Antonio to Ontario departing in november.
What's the cheapest day of the week to fly from San Antonio to Ontario?: Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from San Antonio to Ontario. It’s 27% cheaper than the average day, while Saturday is the most expensive, with prices 8% higher.
What’s the cheapest month to fly from San Antonio to Ontario? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from San Antonio to Ontario, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •September is the cheapest month to fly from San Antonio to Ontario at $226 round-trip.
•June ($421) and May ($405) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 86% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are flights from San Antonio to Ontario the cheapest?: Flights from San Antonio to Ontario are cheapest 16 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Low season	March
High season	October
Cheapest flight	$92

Beat the crowds with an average 12% drop in travelers.

The most popular month to fly with an average 20% increase in travelers.

One-way flight from San Antonio to Ontario

When to book flights from San Antonio to Ontario

Are your dates flexible? Find out the best times to travel from San Antonio to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from San Antonio to Ontario?
Only Economy Class is available on flights from San Antonio to Ontario.
How long is a flight from San Antonio to Ontario?
A nonstop flight from San Antonio to Ontario takes 00m, covering 1,163 miles.
Do I need a passport to fly from San Antonio to Ontario?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a San Antonio to Ontario flight?
Round-trip flights from San Antonio to Ontario range from $286 to $430, with an average of $371 over the past 12 months. Anything below $286 counts as a good deal.
How expensive are last-minute San Antonio to Ontario flights?
Last-minute fares on this route (booked within two weeks of departure) run 8% above the $371 route average. Book 16 weeks before departure for the lowest fares.
How are flight prices from San Antonio to Ontario looking right now?
One-way fares from San Antonio to Ontario are currently higher than usual. Average one-way flight prices are about $233, which is 21% above the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo
Which airports can I use when flying from San Antonio to Ontario?
Flights from San Antonio to Ontario usually depart from San Antonio (SAT) and arrive at Ontario (ONT).
Which airports do connecting flights from San Antonio to Ontario pass through?
One-stop flights from San Antonio to Ontario most commonly connect through:

• Phoenix Sky Harbor Intl (PHX) - 47% of one-stop connections
• Denver Intl (DEN) - 37% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections
• Dallas/Fort Worth (DFW) - 1% of one-stop connections
Can I save money by using flexible dates for flights from San Antonio to Ontario?
Yes. Flexible dates can save you up to 33% on flights from San Antonio to Ontario. Tuesday is the cheapest departure day at $272 round-trip on average, while Saturday is the most expensive at $402, a difference of $130.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from San Antonio to Ontario?
Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 4h 50m, compared with 5h 22m via Houston George Bush Intcntl (IAH) and 5h 32m via Dallas Love Field (DAL).
What is the time difference between San Antonio and Ontario?
Ontario is 2 hours behind San Antonio (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $272, about $130 less than Saturday fares (32% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 28% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your San Antonio to Ontario trip for September. Fares historically average $226 round-trip in that month - typically $195 less than the most expensive month, which is June (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Azure Hotel & Suites, Trademark Collection by Wyndham
• La Quinta Inn & Suites by Wyndham Ontario Airport
• Ontario Airport Inn

More options for your flight from San Antonio to Ontario

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Complete your trip to Ontario with a hotel stay or car rental

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SAT - ONT

$92 Find Cheap Flights from San Antonio to Ontario - Compare and Save

Everything you should know

Cheap Flights from San Antonio to Ontario (SAT-ONT)

Recent round-trip flight deals from San Antonio to Ontario

Recent one-way flight deals from San Antonio to Ontario

Recent last minute flight deals from San Antonio to Ontario

Price, demand and travel trends for San Antonio to Ontario flights

How much is a round-trip flight from San Antonio to Ontario?

What's the cheapest day of the week to fly from San Antonio to Ontario?

What’s the cheapest month to fly from San Antonio to Ontario?

When are flights from San Antonio to Ontario the cheapest?

Which airline is the cheapest to fly from San Antonio to Ontario?

What’s the most popular layover airport when flying from San Antonio to Ontario?

What is the cheapest layover airport when flying from San Antonio to Ontario?

When flying from San Antonio to Ontario which airport offers the shortest layover?

Key details for San Antonio to Ontario flights

Low season

High season

Cheapest flight

When to book flights from San Antonio to Ontario

Your San Antonio to Ontario flight questions, answered

Your guide to booking San Antonio to Ontario flights

More options for your flight from San Antonio to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from San Antonio to Ontario

Find direct flights to and from San Antonio and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations

Find deals for your return flight