Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Sydney to San Diego from $427

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 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Sydney to San Diego

Cheap round-trip flights

Air Canada Logo
11:20 am - 5:24 pmSYD-SAN
24h 04m1 stop
Air Canada Logo
12:45 pm - 8:40 pmSAN-SYD
37h 55m2 stops
$719Air Canada
Find Deal
Mon, Mar 9 - Wed, Mar 25
Multiple Airlines Logo
7:25 pm - 12:03 pmSYD-SAN
34h 38m2 stops
Multiple Airlines Logo
12:45 pm - 5:40 pmSAN-SYD
34h 55m2 stops
$739Multiple Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 25
American Airlines Logo
11:20 am - 3:30 pmSYD-SAN
22h 10m2 stops
American Airlines Logo
12:50 pm - 9:00 amSAN-SYD
25h 10m2 stops
$831American Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
1:05 pm - 9:12 pmSYD-SAN
26h 07m1 stop
American Airlines Logo
12:50 pm - 9:00 amSAN-SYD
25h 10m2 stops
$838American Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
12:10 pm - 10:29 pmSYD-SAN
28h 19m2 stops
United Airlines Logo
8:40 pm - 9:05 amSAN-SYD
17h 25m1 stop
$844United Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
United Airlines Logo
12:10 pm - 1:45 pmSYD-SAN
19h 35m1 stop
United Airlines Logo
8:40 pm - 9:05 amSAN-SYD
17h 25m1 stop
$847United Airlines
Find Deal
Sun, Nov 2 - Tue, Nov 18
Delta Logo
10:40 am - 3:22 pmSYD-SAN
23h 42m1 stop
Delta Logo
7:30 pm - 7:30 amSAN-SYD
18h 00m1 stop
$959Delta
Find Deal
Thu, Mar 5 - Mon, Mar 9
Delta Logo
10:40 am - 9:16 amSYD-SAN
17h 36m1 stop
Delta Logo
1:30 pm - 8:30 amSAN-SYD
48h 00m2 stops
$1,059Delta
Find Deal
Wed, Dec 10 - Fri, Jan 9
Alaska Airlines Logo
9:40 pm - 8:05 pmSYD-SAN
17h 25m1 stop
Alaska Airlines Logo
8:15 am - 7:45 pmSAN-SYD
40h 30m1 stop
$1,751Alaska Airlines
Find Deal
Fri, Dec 12 - Mon, Jan 12
Alaska Airlines Logo
9:40 pm - 8:05 pmSYD-SAN
17h 25m1 stop
Alaska Airlines Logo
6:45 pm - 7:45 pmSAN-SYD
30h 00m2 stops
$1,841Alaska Airlines
Find Deal
Sat, Dec 13 - Fri, Jan 9

Delta flights from Sydney to San Diego

Our best Delta deals on Sydney to San Diego flight tickets
Delta
Sep 24
SYD9:25 amSydney Kingsford Smith
26h 41m
1 stop
SAN7:06 pmSan Diego
Feb 11
SAN10:00 amSan Diego
27h 30m
1 stop
SYD8:30 amSydney Kingsford Smith
$852
Find similar
Delta
Mar 5
SYD10:40 amSydney Kingsford Smith
23h 42m
1 stop
SAN3:22 pmSan Diego
Mar 9
SAN7:30 pmSan Diego
18h 00m
1 stop
SYD7:30 amSydney Kingsford Smith
$959
Find similar
Delta
Dec 10
SYD10:40 amSydney Kingsford Smith
17h 36m
1 stop
SAN9:16 amSan Diego
Jan 9
SAN1:30 pmSan Diego
48h 00m
2 stops
SYD8:30 amSydney Kingsford Smith
$1,059
Find similar

United Airlines flights from Sydney to San Diego

Our best United Airlines deals on Sydney to San Diego flight tickets
United Airlines
Oct 30
SYD12:10 pmSydney Kingsford Smith
28h 19m
2 stops
SAN10:29 pmSan Diego
Nov 6
SAN8:40 pmSan Diego
17h 25m
1 stop
SYD9:05 amSydney Kingsford Smith
$844
Find similar
United Airlines
Nov 2
SYD12:10 pmSydney Kingsford Smith
19h 35m
1 stop
SAN1:45 pmSan Diego
Nov 18
SAN8:40 pmSan Diego
17h 25m
1 stop
SYD9:05 amSydney Kingsford Smith
$847
Find similar
United Airlines
Oct 30
SYD12:10 pmSydney Kingsford Smith
24h 24m
1 stop
SAN6:34 pmSan Diego
Nov 6
SAN4:01 pmSan Diego
22h 14m
1 stop
SYD9:15 amSydney Kingsford Smith
$851
Find similar

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 September 16, 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

Mon 3/9

11:20 am-5:24 pm

1 stop24h 04m

San Diego

Wed 3/25

12:45 pm-8:40 pm

2 stops37h 55m

$719

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Mon 3/9

7:25 pm-12:03 pm

2 stops34h 38m

San Diego

Wed 3/25

12:45 pm-5:40 pm

2 stops34h 55m

$739

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 10/29

11:20 am-3:30 pm

2 stops22h 10m

San Diego

Wed 11/5

12:50 pm-9:00 am

2 stops25h 10m

$831

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 10/29

1:05 pm-9:12 pm

1 stop26h 07m

San Diego

Wed 11/5

12:50 pm-9:00 am

2 stops25h 10m

$838

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 10/30

12:10 pm-10:29 pm

2 stops28h 19m

San Diego

Thu 11/6

8:40 pm-9:05 am

1 stop17h 25m

$844

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sun 11/2

12:10 pm-1:45 pm

1 stop19h 35m

San Diego

Tue 11/18

8:40 pm-9:05 am

1 stop17h 25m

$847

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 3/5

10:40 am-3:22 pm

1 stop23h 42m

San Diego

Mon 3/9

7:30 pm-7:30 am

1 stop18h 00m

$959

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Wed 12/10

10:40 am-9:16 am

1 stop17h 36m

San Diego

Fri 1/9

1:30 pm-8:30 am

2 stops48h 00m

$1,059

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Fri 12/12

9:40 pm-8:05 pm

1 stop17h 25m

San Diego

Mon 1/12

8:15 am-7:45 pm

1 stop40h 30m

$1,751

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sat 12/13

9:40 pm-8:05 pm

1 stop17h 25m

San Diego

Fri 1/9

6:45 pm-7:45 pm

2 stops30h 00m

$1,841

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 September, then departing from Sydney during the month October is also very affordable. Most momondo users find prices during this month for around $1,003.

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 $1,125 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 $915 on momondo.

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

As of September 2025, prices for Sydney to San Diego flights are approximately 3% 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

Direct flights

None
There are no direct flights from Sydney to San Diego. There are no popular flight routes from Sydney to San Diego.
Search flight deals

  • 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 25m.

  • 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
Air CanadaPriceFrom $795Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
DeltaPriceFrom $834Free CancellationRating
7.9
7,957 reviews
Search Delta flights
United AirlinesPriceFrom $834Free CancellationRating
7.4
8,924 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
La Mesa
National City
Poway
Imperial Beach
San Ysidro
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.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States