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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Ontario to San Antonio

(Round-trip)
Depart: Wed Oct 18 2017 Return: Wed Oct 25 2017 Trip spans 8 days
Frontier
Frontier
ONT
12:00a
SAT
2:59a
2h 59m
nonstop
SAT
12:00a
ONT
3:18a
3h 18m
nonstop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
SAT
2:59a
2h 59m
nonstop
SAT
12:00a
ONT
3:18a
3h 18m
nonstop
Depart: Thu Sep 21 2017 Return: Wed Sep 27 2017 Trip spans 7 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:43a
4h 43m
1 stop
SAT
12:00a
ONT
5:08a
5h 08m
1 stop
Depart: Thu Sep 7 2017 Return: Mon Sep 11 2017 Trip spans 5 days
United
United
ONT
12:00a
SAT
5:14a
5h 14m
1 stop
SAT
12:00a
ONT
6:50a
6h 50m
1 stop
Depart: Tue Dec 26 2017 Return: Sat Dec 30 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
SAT
5:00a
5h 00m
1 stop
SAT
12:00a
ONT
3:18a
3h 18m
nonstop
Depart: Wed Nov 8 2017 Return: Sun Nov 12 2017 Trip spans 5 days
Frontier
Frontier
ONT
12:00a
SAT
2:59a
2h 59m
nonstop
SAT
12:00a
ONT
11:14p
23h 14m
1 stop
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
12:00a
SAT
5:15a
5h 15m
1 stop
SAT
12:00a
ONT
5:07a
5h 07m
1 stop
Depart: Thu Sep 14 2017 Return: Mon Sep 18 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:43a
4h 43m
1 stop
SAT
12:00a
ONT
5:07a
5h 07m
1 stop
Depart: Fri Nov 24 2017 Return: Wed Nov 29 2017 Trip spans 6 days
Frontier
Frontier
ONT
12:00a
SAT
2:59a
2h 59m
nonstop
SAT
12:00a
ONT
3:18a
3h 18m
nonstop
Depart: Fri Sep 1 2017 Return: Tue Sep 5 2017 Trip spans 5 days
United
United
ONT
12:00a
SAT
8:17a
8h 17m
1 stop
SAT
12:00a
ONT
7:01a
7h 01m
1 stop
Depart: Thu Sep 21 2017 Return: Mon Sep 25 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:43a
4h 43m
1 stop
SAT
12:00a
ONT
5:07a
5h 07m
1 stop
Depart: Fri Oct 27 2017 Return: Sun Oct 29 2017 Trip spans 3 days
Frontier
Frontier
ONT
12:00a
SAT
2:59a
2h 59m
nonstop
SAT
12:00a
ONT
7:44a
7h 44m
1 stop
Depart: Tue Sep 19 2017 Return: Wed Sep 20 2017 Trip spans 2 days
United
United
ONT
12:00a
SAT
5:13a
5h 13m
1 stop
SAT
12:00a
ONT
5:41a
5h 41m
1 stop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:43a
4h 43m
1 stop
SAT
12:00a
ONT
5:08a
5h 08m
1 stop
Depart: Fri Dec 15 2017 Return: Sun Jan 14 2018 Trip spans 31 days
Frontier
Frontier
ONT
12:00a
SAT
2:48a
2h 48m
nonstop
SAT
12:00a
ONT
11:22p
23h 22m
1 stop
Depart: Sat Oct 14 2017 Return: Tue Oct 17 2017 Trip spans 4 days
United
United
ONT
12:00a
SAT
5:13a
5h 13m
1 stop
SAT
12:00a
ONT
5:35a
5h 35m
1 stop
Depart: Thu Sep 7 2017 Return: Sun Sep 10 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:43a
4h 43m
1 stop
SAT
12:00a
ONT
5:07a
5h 07m
1 stop
Depart: Wed Oct 4 2017 Return: Sun Oct 8 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:00a
SAT
4:40a
4h 40m
1 stop
SAT
12:00a
ONT
4:55a
4h 55m
1 stop
Depart: Thu Sep 14 2017 Return: Mon Sep 18 2017 Trip spans 5 days
United
United
ONT
12:00a
SAT
5:32a
5h 32m
1 stop
SAT
12:00a
ONT
5:41a
5h 41m
1 stop
Depart: Fri Dec 15 2017 Return: Mon Dec 18 2017 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
SAT
2:48a
2h 48m
nonstop
SAT
12:00a
ONT
3:18a
3h 18m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Ontario
$97
Destination

San Antonio
$97