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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 11/6. 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 Australia to San Diego

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:55 - 20:46
MEL
-
SAN
26h 51m
2 stops
United Airlines Logo
13:39 - 07:30
SAN
-
MEL
24h 51m
2 stops
$1,345United Airlines
Mon, 15 Jun - Wed, 1 Jul
United Airlines Logo
10:55 - 19:51
MEL
-
SAN
25h 56m
2 stops
United Airlines Logo
13:39 - 07:30
SAN
-
MEL
24h 51m
2 stops
$1,351United Airlines
Mon, 15 Jun - Wed, 1 Jul
United Airlines Logo
10:55 - 19:51
MEL
-
SAN
25h 56m
2 stops
United Airlines Logo
11:55 - 07:30
SAN
-
MEL
26h 35m
2 stops
$1,352United Airlines
Mon, 15 Jun - Wed, 1 Jul
Lufthansa Logo
10:55 - 22:49
MEL
-
SAN
28h 54m
1 stop
Lufthansa Logo
11:55 - 08:15
SAN
-
MEL
27h 20m
1 stop
$1,370Lufthansa
Mon, 6 Jul - Tue, 21 Jul
Multiple Airlines Logo
10:55 - 23:54
MEL
-
SAN
29h 59m
2 stops
Multiple Airlines Logo
18:27 - 08:15
SAN
-
MEL
20h 48m
1 stop
$1,374Multiple Airlines
Tue, 7 Jul - Tue, 21 Jul
Multiple Airlines Logo
06:00 - 11:53
SYD
-
SAN
22h 53m
2 stops
Multiple Airlines Logo
12:35 - 07:20
SAN
-
SYD
25h 45m
1 stop
$1,385Multiple Airlines
Tue, 21 Jul - Tue, 18 Aug
Air Canada Logo
09:20 - 11:50
SYD
-
SAN
19h 30m
1 stop
Air Canada Logo
16:55 - 07:20
SAN
-
SYD
21h 25m
1 stop
$1,403Air Canada
Sun, 14 Jun - Wed, 17 Jun
Air Canada Logo
11:20 - 13:04
SYD
-
SAN
20h 44m
1 stop
Air Canada Logo
07:05 - 09:35
SAN
-
SYD
31h 30m
1 stop
$1,413Air Canada
Thu, 12 Nov - Mon, 16 Nov
Virgin Australia Logo
10:55 - 16:07
MEL
-
SAN
22h 12m
1 stop
Virgin Australia Logo
16:09 - 08:15
SAN
-
MEL
23h 06m
1 stop
$1,654Virgin Australia
Mon, 15 Jun - Thu, 2 Jul
Virgin Australia Logo
23:45 - 11:51
PER
-
SAN
27h 06m
2 stops
Virgin Australia Logo
11:55 - 14:40
SAN
-
PER
35h 45m
2 stops
$2,150Virgin Australia
Wed, 24 Jun - Tue, 7 Jul

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 3 June 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

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 15/6

10:55-20:46

2 stops26h 51m

San Diego

Wed 1/7

13:39-07:30

2 stops24h 51m

$1,345

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 15/6

10:55-19:51

2 stops25h 56m

San Diego

Wed 1/7

13:39-07:30

2 stops24h 51m

$1,350

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 15/6

10:55-19:51

2 stops25h 56m

San Diego

Wed 1/7

11:55-07:30

2 stops26h 35m

$1,352

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 6/7

10:55-22:49

1 stop28h 54m

San Diego

Tue 21/7

11:55-08:15

1 stop27h 20m

$1,370

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Tue 7/7

10:55-23:54

2 stops29h 59m

San Diego

Tue 21/7

18:27-08:15

1 stop20h 48m

$1,374

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Tue 21/7

06:00-11:53

2 stops22h 53m

San Diego

Tue 18/8

12:35-07:20

1 stop25h 45m

$1,385
Fastest return journey

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Sun 14/6

09:20-11:50

1 stop19h 30m

San Diego

Wed 17/6

16:55-07:20

1 stop21h 25m

$1,403

SydneySan Diego

SYD - SAN

SYDSAN

Sydney Kingsford Smith

Thu 12/11

11:20-13:04

1 stop20h 44m

San Diego

Mon 16/11

07:05-09:35

1 stop31h 30m

$1,413

MelbourneSan Diego

MEL - SAN

MELSAN

Melbourne

Mon 15/6

10:55-16:07

1 stop22h 12m

San Diego

Thu 2/7

16:09-08:15

1 stop23h 06m

$1,654

PerthSan Diego

PER - SAN

PERSAN

Perth

Wed 24/6

23:45-11:51

2 stops27h 06m

San Diego

Tue 7/7

11:55-14:40

2 stops35h 45m

$2,150

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $1,171. If you’re not able to fly to San Diego in September, then October is your next best option. Flight prices from Australia to San Diego during October average around $1,300.

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 $1,447 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 $1,224 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 SYDNEYSeptember20% cheaperFlying from Sydney to San Diego costs on average just $1,171 in September
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM SYDNEYDecember24% more expensiveIt costs about $1,796 for flights to San Diego from Sydney in December
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM SYDNEYDecember294% 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

$1,345

Fastest flight time

20h 48m

Popular in

May
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 round-trip flight price to San Diego from Australia in the last 5 days is $1,345 (Melbourne to San Diego).
Search Deals
The fastest flight to San Diego from Australia takes 20h 48m (Sydney Kingsford Smith to San Diego).
Search Deals
May has the highest demand for flights to San Diego, with a 28% 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 41 days ahead of your departure date. In general, you can expect to find flights to San Diego for around $1,447 when searching 41 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 $1,037 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 $83 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 June 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 $1,034
Melbourne to San Diego Flightsfrom $969
Brisbane to San Diego Flightsfrom $1,634
Perth to San Diego Flightsfrom $1,282