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Look for other cheap flights to San Diego

$825 Cheap flights to San Diego

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Diego departing on 20/7. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to San Diego

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:55 - 11:51
MEL
-
SAN
17h 56m
1 stop
United Airlines Logo
12:41 - 07:30
SAN
-
MEL
25h 49m
2 stops
$1,369United Airlines
Fri, 7 Aug - Fri, 14 Aug
United Airlines Logo
10:55 - 19:51
MEL
-
SAN
25h 56m
2 stops
United Airlines Logo
17:00 - 08:15
SAN
-
MEL
22h 15m
2 stops
$1,373United Airlines
Sun, 9 Aug - Sun, 16 Aug
Multiple Airlines Logo
10:55 - 20:53
MEL
-
SAN
26h 58m
1 stop
Multiple Airlines Logo
19:41 - 08:15
SAN
-
MEL
19h 34m
1 stop
$1,388Multiple Airlines
Mon, 3 Aug - Thu, 13 Aug
Air Canada Logo
11:20 - 17:59
SYD
-
SAN
25h 39m
1 stop
Air Canada Logo
14:00 - 09:35
SAN
-
SYD
24h 35m
1 stop
$1,414Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
11:20 - 17:59
SYD
-
SAN
25h 39m
1 stop
Air Canada Logo
14:00 - 09:35
SAN
-
SYD
24h 35m
1 stop
$1,415Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air New Zealand Logo
09:40 - 18:35
BNE
-
SAN
25h 55m
2 stops
Air New Zealand Logo
18:28 - 11:05
SAN
-
BNE
23h 37m
2 stops
$1,467Air New Zealand
Tue, 18 Aug - Mon, 24 Aug
Air New Zealand Logo
09:40 - 20:53
BNE
-
SAN
28h 13m
2 stops
Air New Zealand Logo
17:00 - 11:05
SAN
-
BNE
25h 05m
2 stops
$1,566Air New Zealand
Mon, 10 Aug - Mon, 17 Aug
Virgin Australia Logo
23:55 - 10:08
PER
-
SAN
25h 13m
2 stops
Virgin Australia Logo
18:28 - 14:40
SAN
-
PER
29h 12m
2 stops
$2,167Virgin Australia
Fri, 7 Aug - Thu, 13 Aug
Japan Airlines Logo
00:10 - 18:21
PER
-
SAN
33h 11m
3 stops
Japan Airlines Logo
13:35 - 06:50
SAN
-
PER
26h 15m
2 stops
$2,586Japan Airlines
Sun, 16 Aug - Mon, 31 Aug
Japan Airlines Logo
00:10 - 18:21
PER
-
SAN
33h 11m
3 stops
Japan Airlines Logo
13:35 - 06:50
SAN
-
PER
26h 15m
2 stops
$2,663Japan Airlines
Sun, 16 Aug - Mon, 31 Aug

momondo Fare Finder

 
Locate flights to San Diego that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 13 July 2026.
Use the filters below to find and compare flights to San Diego that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Fri 7/8

10:55-11:51

1 stop17h 56m

San Diego

Fri 14/8

12:41-07:30

2 stops25h 49m

$1,369

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Sun 9/8

10:55-19:51

2 stops25h 56m

San Diego

Sun 16/8

17:00-08:15

2 stops22h 15m

$1,373

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 3/8

10:55-20:53

1 stop26h 58m

San Diego

Thu 13/8

19:41-08:15

1 stop19h 34m

$1,388

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 5/11

11:20-17:59

1 stop25h 39m

San Diego

Mon 9/11

14:00-09:35

1 stop24h 35m

$1,414

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 5/11

11:20-17:59

1 stop25h 39m

San Diego

Mon 9/11

14:00-09:35

1 stop24h 35m

$1,415

BrisbaneSan Diego

BNE - SAN

BNESAN

Brisbane

Tue 18/8

09:40-18:35

2 stops25h 55m

San Diego

Mon 24/8

18:28-11:05

2 stops23h 37m

$1,467

BrisbaneSan Diego

BNE - SAN

BNESAN

Brisbane

Mon 10/8

09:40-20:53

2 stops28h 13m

San Diego

Mon 17/8

17:00-11:05

2 stops25h 05m

$1,566

PerthSan Diego

PER - SAN

PERSAN

Perth

Fri 7/8

23:55-10:08

2 stops25h 13m

San Diego

Thu 13/8

18:28-14:40

2 stops29h 12m

$2,167

PerthSan Diego

PER - SAN

PERSAN

Perth

Sun 16/8

00:10-18:21

3 stops33h 11m

San Diego

Mon 31/8

13:35-06:50

2 stops26h 15m

$2,586

PerthSan Diego

PER - SAN

PERSAN

Perth

Sun 16/8

00:10-18:21

3 stops33h 11m

San Diego

Mon 31/8

13:35-06:50

2 stops26h 15m

$2,663

Flights are sorted by cheapest return flights first.

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

See travel insights to San Diego from

San Diego flights insights and trends

Explore insights for your San Diego flight to craft the best travel plan

What is the cheapest month to fly to San Diego?

The month of September is, on average, the cheapest month to fly to San Diego from Australia, with most prices found around $1,208. If you’re not able to fly to San Diego in September, then August is your next best option. Flight prices from Australia to San Diego during August average around $1,297.

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

You are more likely to see cheaper flights to San Diego from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $1,518 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Australia for as low as $1,258 on momondo.

Cheapest flights to San Diego

Find the cheapest flights to San Diego from your nearest city or airport
Find flights from Sydney to San Diego
CHEAPEST MONTH TO FLY TO SAN DIEGO FROM SYDNEYSeptember21% cheaperFlying from Sydney to San Diego costs on average just $1,208 in September
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM SYDNEYDecember23% more expensiveIt costs about $1,874 for flights to San Diego from Sydney in December
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM SYDNEYDecember266% more users visitedMore momondo users searched in flights to San Diego from Sydney in December than any other month

Cheap San Diego flight deals and tips

Summary info about San Diego flight prices, duration and airlines

Best One-Way Price

$825

Best Round-Trip Price

$1,369

Fastest flight time

26h 31m

Popular in

June
The best one-way flight price to San Diego from Australia in the last 5 days is $825 (Sydney Kingsford Smith to San Diego).
Search Deals
The best return flight price to San Diego from Australia in the last 5 days is $1,369 (Melbourne to San Diego).
Search Deals
The fastest flight to San Diego from Australia takes 26h 31m (Sydney Kingsford Smith to San Diego).
Search Deals
June has the highest demand for flights to San Diego, with a 44% price increase on average.
Search Deals

Frequently asked questions about flying to San Diego

When is the best time to plan a beach trip to San Diego?

The month of August is often the best time to visit San Diego to go to the beach due to the weather. Mission Beach is the most often visited beach in the area.

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

You are more likely to see cheaper flights to San Diego from Australia when booking 24 days ahead of your departure date. In general, you can expect to find flights to San Diego for around $1,518 when searching 24 days out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Australia for as low as $975 on momondo.

Is there an alternative airport near San Diego?

Finding an alternative and possibly cheaper destination airport near San Diego is possible. If you are planning a flight to San Diego, consider booking flights to San Diego Carlsbad-Palomar Airport (47 km from San Diego city centre), Santa Ana J. Wayne/Orange Cnty Airport (126 km from San Diego city centre), Palm Springs Airport (138 km from San Diego city centre), Long Beach Municipal Airport (153 km from San Diego city centre) or Ontario Airport (155 km from San Diego city centre).

Is there a cheaper alternative to flying into San Diego?

Santa Ana J. Wayne/Orange Cnty Airport has an average price of $132 per person and is typically the cheapest airport to fly into when visiting San Diego. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

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

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

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

As of July 2026, there are 8 operators available to choose from for flights to San Diego Airport.

How old do you have to be to fly 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 stopovers. It is recommended that you verify with the airline you are booking with for travel to San Diego Airport.

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

The necessary travel and health documents for your San Diego Airport 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 licence 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.

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista

Why use momondo?

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

It is quick and easy to find flights to San Diego on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

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

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

How can momondo help me find flights to San Diego?

Once all potential San Diego flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

If you are not ready to book a flight to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to San Diego and let you know when they change.

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Find better results for your trip to San Diego

Popular Flights to San Diego

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to San Diego Flightsfrom $1,000
Melbourne to San Diego Flightsfrom $955
Perth to San Diego Flightsfrom $1,356
Brisbane to San Diego Flightsfrom $1,038