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Cheap flights from San Diego to Los Angeles from $51

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from San Diego to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:28 am - 7:36 pmSAN  San Diego-ONT Ontario
9h 08m1 stop San Francisco
Frontier Logo
10:04 am - 4:59 pmONT  Ontario-SAN San Diego
6h 55m1 stop Las Vegas Harry Reid Intl
$142Frontier
Mon, Oct 5 - Tue, Oct 6
Frontier Logo
3:14 pm - 7:40 pmSAN  San Diego-ONT Ontario
28h 26m1 stop San Francisco
Frontier Logo
2:28 pm - 7:49 pmONT  Ontario-SAN San Diego
5h 21m1 stop Las Vegas Harry Reid Intl
$148Frontier
Thu, Oct 22 - Mon, Oct 26
Frontier Logo
8:34 pm - 7:04 amSAN  San Diego-ONT Ontario
10h 30m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:35 pm - 6:38 pmONT  Ontario-SAN San Diego
22h 03m2 stops Las Vegas Harry Reid Intl San Francisco
$172Frontier
Thu, Oct 22 - Mon, Oct 26
Frontier Logo
10:28 am - 7:36 pmSAN  San Diego-ONT Ontario
9h 08m1 stop San Francisco
Frontier Logo
10:04 am - 6:09 pmONT  Ontario-SAN San Diego
8h 05m2 stops Las Vegas Harry Reid Intl San Francisco
$183Frontier
Mon, Oct 5 - Tue, Oct 6
Frontier Logo
4:53 pm - 11:51 pmSAN  San Diego-ONT Ontario
6h 58m1 stop Denver Intl
Frontier Logo
2:23 pm - 7:47 pmONT  Ontario-SAN San Diego
5h 24m1 stop Las Vegas Harry Reid Intl
$188Frontier
Tue, Nov 17 - Thu, Nov 19
Frontier Logo
3:14 pm - 7:40 pmSAN  San Diego-ONT Ontario
4h 26m1 stop San Francisco
Frontier Logo
2:28 pm - 7:49 pmONT  Ontario-SAN San Diego
5h 21m1 stop Las Vegas Harry Reid Intl
$201Frontier
Thu, Oct 22 - Mon, Oct 26
Frontier Logo
4:53 pm - 11:51 pmSAN  San Diego-ONT Ontario
6h 58m1 stop Denver Intl
Frontier Logo
12:01 pm - 6:38 pmONT  Ontario-SAN San Diego
6h 37m1 stop San Francisco
$201Frontier
Thu, Nov 5 - Mon, Nov 9
Frontier Logo
6:25 am - 11:51 pmSAN  San Diego-ONT Ontario
17h 26m1 stop Denver Intl
Frontier Logo
6:25 am - 4:08 pmONT  Ontario-SAN San Diego
9h 43m1 stop Denver Intl
$215Frontier
Sat, Nov 7 - Sun, Nov 8
Frontier Logo
10:48 am - 7:28 pmSAN  San Diego-ONT Ontario
8h 40m1 stop San Francisco
Frontier Logo
11:52 am - 11:57 pmONT  Ontario-SAN San Diego
12h 05m1 stop Denver Intl
$217Frontier
Thu, Oct 29 - Sat, Oct 31
American Airlines Logo
10:11 am - 6:17 pmSAN  San Diego-ONT Ontario
8h 06m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 3:22 pmONT  Ontario-SAN San Diego
9h 07m1 stop Phoenix Sky Harbor Intl
$223American Airlines
Mon, Sep 28 - Wed, Sep 30

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Frontier flights from San Diego to Ontario

Our best Frontier deals on San Diego to Ontario flight tickets
Frontier
Oct 5
SAN10:28 amSan Diego
9h 08m
1 stop
ONT7:36 pmOntario
Oct 6
ONT10:04 amOntario
6h 55m
1 stop
SAN4:59 pmSan Diego
$142
Frontier
Oct 22
SAN3:14 pmSan Diego
28h 26m
1 stop
ONT7:40 pmOntario
Oct 26
ONT2:28 pmOntario
5h 21m
1 stop
SAN7:49 pmSan Diego
$148
Frontier
Oct 22
SAN8:34 pmSan Diego
10h 30m
1 stop
ONT7:04 amOntario
Oct 26
ONT8:35 pmOntario
22h 03m
2 stops
SAN6:38 pmSan Diego
$172

Alaska Airlines flights from San Diego to Ontario

Our best Alaska Airlines deals on San Diego to Ontario flight tickets
Alaska Airlines
Oct 9
SAN7:27 pmSan Diego
14h 50m
1 stop
ONT10:17 amOntario
Oct 19
ONT6:02 amOntario
11h 50m
1 stop
SAN5:52 pmSan Diego
$243
Alaska Airlines
Oct 10
SAN12:48 pmSan Diego
4h 17m
1 stop
ONT5:05 pmOntario
Oct 18
ONT5:45 pmOntario
14h 25m
1 stop
SAN8:10 amSan Diego
$363
Alaska Airlines
Sep 30
SAN9:59 pmSan Diego
17h 48m
1 stop
ONT3:47 pmOntario
Oct 4
ONT5:45 pmOntario
14h 25m
1 stop
SAN8:10 amSan Diego
$373

momondo Fare Finder

 
Use the filters below to find and compare flights from San Diego to Ontario that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Mon 10/5

10:28 am-7:36 pm

1 stop9h 08m

Ontario

Tue 10/6

10:04 am-4:59 pm

1 stop6h 55m

$142

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 10/22

3:14 pm-7:40 pm

1 stop28h 26m

Ontario

Mon 10/26

2:28 pm-7:49 pm

1 stop5h 21m

$148

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 10/22

8:34 pm-7:04 am

1 stop10h 30m

Ontario

Mon 10/26

8:35 pm-6:38 pm

2 stops22h 03m

$172

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Mon 10/5

10:28 am-7:36 pm

1 stop9h 08m

Ontario

Tue 10/6

10:04 am-6:09 pm

2 stops8h 05m

$183

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Tue 11/17

4:53 pm-11:51 pm

1 stop6h 58m

Ontario

Thu 11/19

2:23 pm-7:47 pm

1 stop5h 24m

$188
Quickest round-trip

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 10/22

3:14 pm-7:40 pm

1 stop4h 26m

Ontario

Mon 10/26

2:28 pm-7:49 pm

1 stop5h 21m

$201

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 11/5

4:53 pm-11:51 pm

1 stop6h 58m

Ontario

Mon 11/9

12:01 pm-6:38 pm

1 stop6h 37m

$201

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Sat 11/7

6:25 am-11:51 pm

1 stop17h 26m

Ontario

Sun 11/8

6:25 am-4:08 pm

1 stop9h 43m

$215

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 10/29

10:48 am-7:28 pm

1 stop8h 40m

Ontario

Sat 10/31

11:52 am-11:57 pm

1 stop12h 05m

$217

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Mon 9/28

10:11 am-6:17 pm

1 stop8h 06m

Ontario

Wed 9/30

6:15 am-3:22 pm

1 stop9h 07m

$223

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Diego to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from San Diego to Ontario?

Frontier and Alaska Airlines are the most popular carriers operating from San Diego to Ontario

When to book flights from San Diego to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Ontario (SAN to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Ontario

Best Price Found

$51

Fastest flight time

4h 26m

Direct flights

None
The best one-way flight to Ontario from San Diego in the past 72 hours is $51. The best round-trip flight deal from San Diego to Ontario found on momondo in the last 72 hours is $142.
The fastest flight from San Diego to Ontario takes 4h 26m
There are no direct flights from San Diego to Ontario. There are no popular flight routes from San Diego to Ontario.
Search flight deals

Frequently asked questions about flying from San Diego to Ontario

  • How far is San Diego to Ontario by plane?

    The distance between San Diego and Ontario is about 97.3 mi. 4h 26m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Diego Airport to Ontario Airport?

    Prices for flights from San Diego Airport to Ontario Airport are refreshed on a daily basis.

  • How old do you have to be to fly from San Diego Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Ontario?

Finding the right flight to Ontario from San Diego is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from San Diego to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Diego to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from San Diego to Ontario?

Once you have performed a search for San Diego to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Diego to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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