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

United Airlines, American Airlines, and Alaska Airlines are the most popular carriers operating from San Diego to Australia

What airlines fly to Australia?

United Airlines, Air New Zealand and Air Canada are the top three most popular airlines that fly to Australia from San Diego according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 5 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from San Diego Airport to Australia refresh daily.

How many operators does momondo search for flights from San Diego Airport to Australia?

As of September 2026, there are 4 operators available to choose from for flights from San Diego Airport to Australia.

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

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 San Diego Airport to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$559 Cheap Flights from San Diego to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 pm - 10:35 amSAN San Diego-SYD Sydney Kingsford Smith

25h 05m2 stops Los Angeles Auckland Intl

9:55 am - 5:29 pmSYD Sydney Kingsford Smith-SAN San Diego

26h 34m2 stops Auckland Intl Los Angeles

$1,018Air New Zealand

Wed, Feb 3 - Wed, Feb 17

4:45 pm - 8:35 amSAN San Diego-SYD Sydney Kingsford Smith

21h 50m2 stops Los Angeles Auckland Intl

9:55 am - 12:19 amSYD Sydney Kingsford Smith-SAN San Diego

33h 24m2 stops Auckland Intl San Francisco

$1,018Air New Zealand

Sun, Oct 25 - Sun, Nov 8

11:25 am - 7:30 amSAN San Diego-BNE Brisbane

26h 05m1 stop San Francisco

7:55 am - 8:38 pmBNE Brisbane-SAN San Diego

30h 43m2 stops Melbourne San Francisco

$1,118United Airlines

Thu, Dec 24 - Thu, Jan 21

5:15 pm - 7:45 amSAN San Diego-BNE Brisbane

21h 30m1 stop Vancouver Intl

10:45 am - 4:25 pmBNE Brisbane-SAN San Diego

23h 40m1 stop Vancouver Intl

$1,118Air Canada

Tue, Oct 27 - Tue, Nov 3

11:25 am - 7:30 amSAN San Diego-BNE Brisbane

26h 05m1 stop San Francisco

7:55 am - 8:38 pmBNE Brisbane-SAN San Diego

30h 43m2 stops Melbourne San Francisco

$1,119United Airlines

Thu, Dec 24 - Thu, Jan 21

5:15 pm - 7:45 amSAN San Diego-BNE Brisbane

21h 30m1 stop Vancouver Intl

6:05 am - 4:25 pmBNE Brisbane-SAN San Diego

28h 20m2 stops Sydney Kingsford Smith Vancouver Intl

$1,139Air Canada

Tue, Oct 27 - Tue, Nov 3

8:05 am - 7:45 pmSAN San Diego-SYD Sydney Kingsford Smith

40h 40m1 stop Honolulu

9:40 pm - 8:08 pmSYD Sydney Kingsford Smith-SAN San Diego

17h 28m1 stop Honolulu

$1,164Alaska Airlines

Sun, Nov 1 - Sun, Nov 8

5:00 pm - 7:45 pmSAN San Diego-SYD Sydney Kingsford Smith

32h 45m1 stop Honolulu

9:40 pm - 8:08 pmSYD Sydney Kingsford Smith-SAN San Diego

17h 28m1 stop Honolulu

$1,164Alaska Airlines

Sun, Oct 25 - Sun, Nov 8

7:59 pm - 8:30 amSAN San Diego-SYD Sydney Kingsford Smith

17h 31m1 stop Los Angeles

10:40 am - 3:04 pmSYD Sydney Kingsford Smith-SAN San Diego

23h 24m1 stop Los Angeles

$1,311Delta

Sun, Dec 6 - Mon, Dec 14

9:53 am - 8:30 amSAN San Diego-SYD Sydney Kingsford Smith

27h 37m2 stops Salt Lake City Los Angeles

10:40 am - 6:06 pmSYD Sydney Kingsford Smith-SAN San Diego

26h 26m2 stops Los Angeles Salt Lake City

$1,315Delta

Sun, Dec 6 - Tue, Dec 15

Cheap last minute flights

Enter your travel dates to find the best prices.

7:15 am - 5:55 amSAN San Diego-MEL Melbourne

29h 40m2 stops Seattle/Tacoma Intl Hong Kong Intl

2:25 pm - 8:48 amMEL Melbourne-SAN San Diego

35h 23m2 stops Hong Kong Intl San Francisco

$1,623Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

7:03 am - 11:15 amSAN San Diego-MEL Melbourne

35h 12m2 stops Chicago O'Hare Intl Hong Kong Intl

2:25 pm - 8:53 pmMEL Melbourne-SAN San Diego

47h 28m2 stops Hong Kong Intl Dallas/Fort Worth

$1,646Multiple Airlines

Sat, Sep 19 - Fri, Sep 25

7:15 am - 5:55 amSAN San Diego-MEL Melbourne

29h 40m2 stops Seattle/Tacoma Intl Hong Kong Intl

2:25 pm - 8:48 amMEL Melbourne-SAN San Diego

35h 23m2 stops Hong Kong Intl San Francisco

$1,647Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

7:15 am - 5:55 amSAN San Diego-MEL Melbourne

29h 40m2 stops Seattle/Tacoma Intl Hong Kong Intl

11:45 pm - 8:48 amMEL Melbourne-SAN San Diego

50h 03m2 stops Hong Kong Intl San Francisco

$1,656Multiple Airlines

Sat, Sep 19 - Fri, Sep 25

5:00 pm - 10:55 amSAN San Diego-MEL Melbourne

24h 55m2 stops Los Angeles Auckland Intl

9:30 am - 11:35 amMEL Melbourne-SAN San Diego

19h 05m1 stop Los Angeles

$1,951Air New Zealand

Sat, Sep 19 - Fri, Sep 25

5:00 pm - 10:55 amSAN San Diego-MEL Melbourne

24h 55m2 stops Los Angeles Auckland Intl

9:30 am - 11:35 amMEL Melbourne-SAN San Diego

19h 05m1 stop Los Angeles

$1,953Air New Zealand

Sat, Sep 19 - Fri, Sep 25

12:41 pm - 8:15 amSAN San Diego-MEL Melbourne

26h 34m1 stop San Francisco

10:55 am - 1:44 pmMEL Melbourne-SAN San Diego

19h 49m1 stop San Francisco

$2,115United Airlines

Tue, Sep 22 - Tue, Sep 29

12:41 pm - 8:15 amSAN San Diego-MEL Melbourne

26h 34m1 stop San Francisco

10:55 am - 1:44 pmMEL Melbourne-SAN San Diego

19h 49m1 stop San Francisco

$2,116United Airlines

Tue, Sep 22 - Tue, Sep 29

11:19 am - 8:15 amSAN San Diego-MEL Melbourne

27h 56m1 stop San Francisco

9:30 am - 5:26 pmMEL Melbourne-SAN San Diego

24h 56m1 stop Los Angeles

$2,215United Airlines

Sat, Sep 19 - Fri, Sep 25

5:00 pm - 11:55 amSAN San Diego-ADL Adelaide

26h 25m3 stops Los Angeles Auckland Intl Sydney Kingsford Smith

7:45 pm - 8:08 pmADL Adelaide-SAN San Diego

40h 53m2 stops Melbourne Los Angeles

$2,568Air New Zealand

Sat, Sep 19 - Sat, Sep 26

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Air New Zealand flights from San Diego to Australia

Our best Air New Zealand deals on San Diego to Australia flight tickets

Air New Zealand

Oct 25

SAN4:45 pmSan Diego

21h 50m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 8

SYD9:55 amSydney Kingsford Smith

33h 24m

2 stops

SAN12:19 amSan Diego

$1,018

Air New Zealand

Oct 18

SAN7:30 amSan Diego

31h 15m

2 stops

SYD8:45 amSydney Kingsford Smith

Nov 1

SYD11:50 amSydney Kingsford Smith

31h 29m

2 stops

SAN1:19 amSan Diego

$1,019

Air New Zealand

Oct 28

SAN4:45 pmSan Diego

21h 50m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 16

SYD11:50 amSydney Kingsford Smith

24h 27m

2 stops

SAN5:17 pmSan Diego

$1,021

Alaska Airlines flights from San Diego to Australia

Our best Alaska Airlines deals on San Diego to Australia flight tickets

Alaska Airlines

Oct 25

SAN5:00 pmSan Diego

32h 45m

1 stop

SYD7:45 pmSydney Kingsford Smith

Nov 8

SYD9:40 pmSydney Kingsford Smith

17h 28m

1 stop

SAN8:08 pmSan Diego

$1,164

Alaska Airlines

Oct 27

SAN8:40 amSan Diego

41h 05m

1 stop

SYD7:45 pmSydney Kingsford Smith

Nov 7

SYD9:40 pmSydney Kingsford Smith

17h 28m

1 stop

SAN8:08 pmSan Diego

$1,189

Alaska Airlines

Oct 18

SAN8:35 amSan Diego

40h 15m

1 stop

SYD6:50 pmSydney Kingsford Smith

Nov 1

SYD9:40 pmSydney Kingsford Smith

17h 28m

1 stop

SAN8:08 pmSan Diego

$1,207

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Wed 2/3

2:30 pm-10:35 am

2 stops25h 05m

Sydney Kingsford Smith

Wed 2/17

9:55 am-5:29 pm

2 stops26h 34m

$1,018

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Sun 10/25

4:45 pm-8:35 am

2 stops21h 50m

Sydney Kingsford Smith

Sun 11/8

9:55 am-12:19 am

2 stops33h 24m

$1,018

San DiegoBrisbane

SAN San Diego - BNE Brisbane

SANBNE

San Diego

Thu 12/24

11:25 am-7:30 am

1 stop26h 05m

Brisbane

Thu 1/21

7:55 am-8:38 pm

2 stops30h 43m

$1,118

San DiegoBrisbane

SAN San Diego - BNE Brisbane

SANBNE

San Diego

Tue 10/27

5:15 pm-7:45 am

1 stop21h 30m

Brisbane

Tue 11/3

10:45 am-4:25 pm

1 stop23h 40m

$1,118

San DiegoBrisbane

SAN San Diego - BNE Brisbane

SANBNE

San Diego

Thu 12/24

11:25 am-7:30 am

1 stop26h 05m

Brisbane

Thu 1/21

7:55 am-8:38 pm

2 stops30h 43m

$1,119

San DiegoBrisbane

SAN San Diego - BNE Brisbane

SANBNE

San Diego

Tue 10/27

5:15 pm-7:45 am

1 stop21h 30m

Brisbane

Tue 11/3

6:05 am-4:25 pm

2 stops28h 20m

$1,139

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Sun 11/1

8:05 am-7:45 pm

1 stop40h 40m

Sydney Kingsford Smith

Sun 11/8

9:40 pm-8:08 pm

1 stop17h 28m

$1,164

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Sun 10/25

5:00 pm-7:45 pm

1 stop32h 45m

Sydney Kingsford Smith

Sun 11/8

9:40 pm-8:08 pm

1 stop17h 28m

$1,164

Quickest round-trip

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Sun 12/6

7:59 pm-8:30 am

1 stop17h 31m

Sydney Kingsford Smith

Mon 12/14

10:40 am-3:04 pm

1 stop23h 24m

$1,311

San DiegoSydney

SAN San Diego - SYD Sydney Kingsford Smith

SANSYD

San Diego

Sun 12/6

9:53 am-8:30 am

2 stops27h 37m

Sydney Kingsford Smith

Tue 12/15

10:40 am-6:06 pm

2 stops26h 26m

$1,315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Australia?

The month of April is, on average, the cheapest month to fly to Australia from San Diego, with most prices found around $997. If you aren’t able to travel during the month of April, then book flights to Australia from San Diego during June instead. Flights to Australia in June, while not as cheap as those in April, still average around $1,098.

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

You are more likely to see cheaper flights to Australia from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,252 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from San Diego for as low as $1,000 on momondo.

Can stopping save me money on San Diego to Australia flights?

You could potentially save up to 6% on your flight if you consider stops on a San Diego to Australia flight.

Cheap San Diego to Australia flight deals and tips

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

Best Price Found	$559
Fastest flight time	20h 50m
Direct flights	None

The best one-way flight to Australia from San Diego in the past 72 hours is $559. The best round-trip flight deal from San Diego to Australia found on momondo in the last 72 hours is $1,018.

The fastest flight from San Diego to Australia takes 20h 50m

There are no direct flights from San Diego to Australia. There are no popular flight routes from San Diego to Australia.

Search flight deals

Frequently asked questions about flying from San Diego to Australia

When did momondo last update prices for flights from San Diego Airport to Australia?
Prices for flights from San Diego Airport to Australia refresh daily.
How many operators does momondo search for flights from San Diego Airport to Australia?
As of September 2026, there are 4 operators available to choose from for flights from San Diego Airport to Australia.
How old do you have to be to fly from San Diego Airport to Australia?
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 San Diego Airport to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Diego to Australia

Compare and see reviews for airlines that fly from San Diego to Australia with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $737	Free Cancellation	Rating 7.1 11,640 reviews	Search Air Canada flights
United Airlines	PriceFrom $929	Free Cancellation	Rating 7.4 10,213 reviews	Search United Airlines flights
Delta	PriceFrom $951	Free Cancellation	Rating 7.8 8,578 reviews	Search Delta flights
Air New Zealand	PriceFrom $1,091	Free Cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from San Diego.

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

Yes. momondo enables you to select and highlight flights to Australia from San Diego with this policy.

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

momondo helps you find the best flight between San Diego and Australia 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 San Diego to Australia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Diego to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.