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Cheap flights from Sydney to San Diego from $440

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to San Diego departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Sydney to San Diego

Cheap round-trip flights

Logo
10:20 am - 5:24 pmSYD-SAN
25h 04m1 stop
Logo
6:10 pm - 5:40 pmSAN-SYD
28h 30m2 stops
$770
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Wed, Oct 29 - Wed, Nov 12
Logo
6:20 am - 12:03 pmSYD-SAN
23h 43m2 stops
Logo
6:10 pm - 5:40 pmSAN-SYD
28h 30m2 stops
$778
Find Deal
Wed, Oct 29 - Wed, Nov 12
United Airlines Logo
10:20 am - 6:23 pmSYD-SAN
25h 03m1 stop
United Airlines Logo
2:21 pm - 7:00 amSAN-SYD
23h 39m1 stop
$830United Airlines
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Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
10:20 am - 3:01 pmSYD-SAN
21h 41m2 stops
United Airlines Logo
4:11 pm - 7:00 amSAN-SYD
21h 49m2 stops
$831United Airlines
Find Deal
Sun, Aug 31 - Fri, Sep 19
United Airlines Logo
10:20 am - 4:23 pmSYD-SAN
23h 03m1 stop
United Airlines Logo
2:21 pm - 7:00 amSAN-SYD
23h 39m1 stop
$834United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
Air Canada Logo
9:20 am - 9:53 pmSYD-SAN
29h 33m1 stop
Air Canada Logo
12:40 pm - 7:20 amSAN-SYD
25h 40m1 stop
$842Air Canada
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Mon, Aug 11 - Mon, Aug 18
Delta Logo
10:40 am - 10:54 pmSYD-SAN
31h 14m1 stop
Delta Logo
6:15 am - 8:30 amSAN-SYD
31h 15m1 stop
$849Delta
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Sat, Dec 13 - Sun, Jan 18
Air Canada Logo
1:55 pm - 12:03 pmSYD-SAN
41h 08m2 stops
Air Canada Logo
12:45 pm - 6:05 pmSAN-SYD
34h 20m2 stops
$936Air Canada
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Sat, Dec 13 - Sat, Jan 17
Delta Logo
10:40 am - 6:56 pmSYD-SAN
27h 16m1 stop
Delta Logo
6:15 am - 8:30 amSAN-SYD
31h 15m1 stop
$974Delta
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Sat, Dec 13 - Mon, Jan 19
American Airlines Logo
5:45 pm - 8:35 amSYD-SAN
33h 50m2 stops
American Airlines Logo
1:29 pm - 6:10 amSAN-SYD
21h 41m2 stops
$1,574American Airlines
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Wed, Dec 17 - Tue, Jan 13

United Airlines flights from Sydney to San Diego

Our best United Airlines deals on Sydney to San Diego flight tickets
United Airlines
Aug 1
SYD10:20 amSydney Kingsford Smith
24h 38m
2 stops
SAN5:58 pmSan Diego
Aug 14
SAN12:45 pmSan Diego
25h 10m
2 stops
SYD6:55 amSydney Kingsford Smith
$773
Find similar
United Airlines
Aug 1
SYD9:30 amSydney Kingsford Smith
17h 42m
1 stop
SAN10:12 amSan Diego
Aug 14
SAN1:50 pmSan Diego
24h 10m
2 stops
SYD7:00 amSydney Kingsford Smith
$776
Find similar
United Airlines
Aug 1
SYD10:20 amSydney Kingsford Smith
21h 46m
1 stop
SAN3:06 pmSan Diego
Aug 14
SAN5:50 pmSan Diego
20h 05m
1 stop
SYD6:55 amSydney Kingsford Smith
$779
Find similar

American Airlines flights from Sydney to San Diego

Our best American Airlines deals on Sydney to San Diego flight tickets
American Airlines
Aug 1
SYD9:10 amSydney Kingsford Smith
23h 15m
2 stops
SAN3:25 pmSan Diego
Aug 14
SAN9:45 amSan Diego
28h 20m
2 stops
SYD7:05 amSydney Kingsford Smith
$819
Find similar
American Airlines
Dec 17
SYD5:45 pmSydney Kingsford Smith
33h 50m
2 stops
SAN8:35 amSan Diego
Jan 13
SAN1:29 pmSan Diego
21h 41m
2 stops
SYD6:10 amSydney Kingsford Smith
$1,574
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momondo Fare Finder

 
Customize your flight search to find flights from Sydney to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Sydney to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 10/29

10:20 am-5:24 pm

1 stop25h 04m

San Diego

Wed 11/12

6:10 pm-5:40 pm

2 stops28h 30m

$770

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 10/29

6:20 am-12:03 pm

2 stops23h 43m

San Diego

Wed 11/12

6:10 pm-5:40 pm

2 stops28h 30m

$778

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sun 9/14

10:20 am-6:23 pm

1 stop25h 03m

San Diego

Sun 9/21

2:21 pm-7:00 am

1 stop23h 39m

$830

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sun 8/31

10:20 am-3:01 pm

2 stops21h 41m

San Diego

Fri 9/19

4:11 pm-7:00 am

2 stops21h 49m

$831

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sat 9/13

10:20 am-4:23 pm

1 stop23h 03m

San Diego

Sat 9/20

2:21 pm-7:00 am

1 stop23h 39m

$834

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 8/11

9:20 am-9:53 pm

1 stop29h 33m

San Diego

Mon 8/18

12:40 pm-7:20 am

1 stop25h 40m

$842

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sat 12/13

10:40 am-10:54 pm

1 stop31h 14m

San Diego

Sun 1/18

6:15 am-8:30 am

1 stop31h 15m

$849

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sat 12/13

1:55 pm-12:03 pm

2 stops41h 08m

San Diego

Sat 1/17

12:45 pm-6:05 pm

2 stops34h 20m

$936

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sat 12/13

10:40 am-6:56 pm

1 stop27h 16m

San Diego

Mon 1/19

6:15 am-8:30 am

1 stop31h 15m

$974

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 12/17

5:45 pm-8:35 am

2 stops33h 50m

San Diego

Tue 1/13

1:29 pm-6:10 am

2 stops21h 41m

$1,574

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 San Diego from

How to get the cheapest flight ticket from Sydney to San Diego

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 typical price of a round-trip flight between Sydney and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of May, then departing from Sydney during the month November is also very affordable. Most momondo users find prices during this month for around $1,048.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Sydney to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $969. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,528. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $864. Flights in the morning are often more expensive with an average ticket price of $1,170.

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $1,166 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Sydney for as low as $988 on momondo.

How have Sydney to San Diego flight prices changed over time?

As of July 2025, prices for Sydney to San Diego flights are approximately 37% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to San Diego

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

Cheap Sydney to San Diego (SYD to SAN) flight deals and tips

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

Best Price Found

$440

Fastest flight time

16h 53m

Direct flights

None

Airports in San Diego

1 airport
The best one-way flight to San Diego from Sydney in the past 72 hours is $440. The best round-trip flight deal from Sydney to San Diego found on momondo in the last 72 hours is $770.
The fastest flight from Sydney to San Diego takes 16h 53m
There are no direct flights from Sydney to San Diego. Popular non-direct route for this connection is Sydney Kingsford Smith Airport - San Diego Airport.
There is 1 airport near San Diego: San Diego (SAN)
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  • How far is Sydney Kingsford Smith to San Diego by plane?

    Sydney Kingsford Smith and San Diego are 7507.7 mi apart from one another. In terms of flight time, this usually takes a little over 17h 30m.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to San Diego Airport?

    Prices for flights from Sydney Kingsford Smith Airport to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to San Diego Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to San Diego Airport.

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

    The required travel and health documents for your San Diego 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 San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Sydney to San Diego?

Best airlines flying from Sydney to San Diego

Compare and see reviews for airlines that fly from Sydney to San Diego with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $648Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Air CanadaPriceFrom $795Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
American AirlinesPriceFrom $896Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,052Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
San Ysidro
Poway
Borrego Springs
Lemon Grove
Alpine
Santee

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to San Diego for you.

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

Flights from Sydney to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Sydney and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Sydney to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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