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Cheap flights from San Diego to Los Angeles from $54

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
8:57 am - 6:31 pmSAN  San Diego-ONT Ontario
9h 34m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:44 am - 6:16 pmONT  Ontario-SAN San Diego
9h 32m2 stops Las Vegas Harry Reid Intl San Francisco
$113Frontier
Tue, Dec 8 - Sat, Dec 12
Frontier Logo
8:50 am - 2:51 pmSAN  San Diego-ONT Ontario
6h 01m1 stop Las Vegas Harry Reid Intl
Frontier Logo
2:01 pm - 11:37 amONT  Ontario-SAN San Diego
21h 36m1 stop Las Vegas Harry Reid Intl
$120Frontier
Wed, Nov 25 - Mon, Nov 30
Frontier Logo
8:57 am - 11:23 pmSAN  San Diego-ONT Ontario
14h 26m2 stops Las Vegas Harry Reid Intl San Francisco
Frontier Logo
8:44 am - 6:16 pmONT  Ontario-SAN San Diego
9h 32m2 stops Las Vegas Harry Reid Intl San Francisco
$137Frontier
Tue, Dec 8 - Sat, Dec 12
Frontier Logo
8:50 am - 2:51 pmSAN  San Diego-ONT Ontario
6h 01m1 stop Las Vegas Harry Reid Intl
Frontier Logo
2:01 pm - 6:10 pmONT  Ontario-SAN San Diego
28h 09m2 stops Las Vegas Harry Reid Intl San Francisco
$148Frontier
Wed, Nov 25 - Mon, Nov 30
Frontier Logo
9:05 am - 1:00 pmSAN  San Diego-ONT Ontario
3h 55m1 stop Las Vegas Harry Reid Intl
Frontier Logo
11:30 am - 11:58 pmONT  Ontario-SAN San Diego
12h 28m1 stop Denver Intl
$151Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
5:26 pm - 12:05 amSAN  San Diego-ONT Ontario
6h 39m1 stop Denver Intl
Frontier Logo
11:42 am - 11:58 pmONT  Ontario-SAN San Diego
12h 16m1 stop Denver Intl
$153Frontier
Tue, Feb 2 - Thu, Feb 18
Frontier Logo
7:05 pm - 11:51 amSAN  San Diego-ONT Ontario
16h 46m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl
Frontier Logo
8:44 am - 6:16 pmONT  Ontario-SAN San Diego
9h 32m2 stops Las Vegas Harry Reid Intl San Francisco
$159Frontier
Fri, Dec 4 - Sat, Dec 12
Frontier Logo
8:57 am - 6:31 pmSAN  San Diego-ONT Ontario
9h 34m1 stop Las Vegas Harry Reid Intl
Frontier Logo
11:30 am - 11:58 pmONT  Ontario-SAN San Diego
12h 28m1 stop Denver Intl
$160Frontier
Tue, Dec 8 - Sat, Dec 12
Frontier Logo
5:26 pm - 12:05 amSAN  San Diego-ONT Ontario
6h 39m1 stop Denver Intl
Frontier Logo
8:02 am - 2:38 pmONT  Ontario-SAN San Diego
6h 36m1 stop Las Vegas Harry Reid Intl
$163Frontier
Thu, Feb 4 - Wed, Mar 3
Frontier Logo
7:53 pm - 7:07 amSAN  San Diego-ONT Ontario
11h 14m1 stop Las Vegas Harry Reid Intl
Frontier Logo
10:48 pm - 12:29 pmONT  Ontario-SAN San Diego
13h 41m1 stop Las Vegas Harry Reid Intl
$168Frontier
Sun, Dec 20 - Wed, Dec 30

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Frontier flights from San Diego to Ontario

Our best Frontier deals on San Diego to Ontario flight tickets
Frontier
Dec 8
SAN7:51 pmSan Diego
27h 32m
1 stop
ONT11:23 pmOntario
Dec 15
ONT7:26 pmOntario
22h 50m
1 stop
SAN6:16 pmSan Diego
$84
Frontier
Dec 8
SAN7:51 pmSan Diego
22h 40m
2 stops
ONT6:31 pmOntario
Dec 15
ONT7:26 pmOntario
22h 50m
1 stop
SAN6:16 pmSan Diego
$110
Frontier
Dec 8
SAN8:57 amSan Diego
9h 34m
1 stop
ONT6:31 pmOntario
Dec 12
ONT8:44 amOntario
9h 32m
2 stops
SAN6:16 pmSan Diego
$113

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Tue 12/8

8:57 am-6:31 pm

1 stop9h 34m

Ontario

Sat 12/12

8:44 am-6:16 pm

2 stops9h 32m

$113

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Wed 11/25

8:50 am-2:51 pm

1 stop6h 01m

Ontario

Mon 11/30

2:01 pm-11:37 am

1 stop21h 36m

$120

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Tue 12/8

8:57 am-11:23 pm

2 stops14h 26m

Ontario

Sat 12/12

8:44 am-6:16 pm

2 stops9h 32m

$137

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Wed 11/25

8:50 am-2:51 pm

1 stop6h 01m

Ontario

Mon 11/30

2:01 pm-6:10 pm

2 stops28h 09m

$148

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 12/3

9:05 am-1:00 pm

1 stop3h 55m

Ontario

Mon 12/7

11:30 am-11:58 pm

1 stop12h 28m

$151

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Tue 2/2

5:26 pm-12:05 am

1 stop6h 39m

Ontario

Thu 2/18

11:42 am-11:58 pm

1 stop12h 16m

$153

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Fri 12/4

7:05 pm-11:51 am

2 stops16h 46m

Ontario

Sat 12/12

8:44 am-6:16 pm

2 stops9h 32m

$159

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Tue 12/8

8:57 am-6:31 pm

1 stop9h 34m

Ontario

Sat 12/12

11:30 am-11:58 pm

1 stop12h 28m

$160
Quickest round-trip

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Thu 2/4

5:26 pm-12:05 am

1 stop6h 39m

Ontario

Wed 3/3

8:02 am-2:38 pm

1 stop6h 36m

$163

San DiegoOntario

SAN San Diego - ONT Ontario

SANONT

San Diego

Sun 12/20

7:53 pm-7:07 am

1 stop11h 14m

Ontario

Wed 12/30

10:48 pm-12:29 pm

1 stop13h 41m

$168

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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 is the most popular carrier operating from San Diego to Ontario

What airlines fly to Ontario?

United Airlines, Delta and Southern / Mokulele are the top three most popular airlines that fly to Ontario from San Diego according to our data. United Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 3 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

$54

Fastest flight time

4h 37m

Direct flights

None
The best one-way flight to Ontario from San Diego in the past 72 hours is $54. The best round-trip flight deal from San Diego to Ontario found on momondo in the last 72 hours is $113.
The fastest flight from San Diego to Ontario takes 4h 37m
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 37m 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.

An easier way to manage your Ontario trip

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