$91+ Cheap flights from San Diego

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SAN — SYD
23 Jul — 30 Jul1
1 adult

What to know about flights from San Diego

Discover essential information about flights departing from San Diego, including flight schedules, destinations, airlines operating at the San Diego airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 18 July 2025.

Good round-trip deal

$366 or less

Good one-way deal

$58 or less
Price to beat on a round-trip flight from San Diego.
Price to beat on a one-way flight from San Diego.

Find flights from San Diego

Cheapest flights from San Diego
Explore the most affordable flight options available from San Diego. Find the lowest fares based on data from user searches, with prices last updated on 18 July 2025.

Wed 30/720:35SAN - SFO
Nonstop1h 35mSouthwest
Sat 2/806:00SFO - SAN
Nonstop1h 30mSouthwest
Deal found 18/7$103
Sat 30/821:06SAN - SFO
Nonstop1h 50mFrontier
Sat 6/921:59SFO - SAN
Nonstop1h 41mFrontier
Deal found 15/7$122
Thu 7/808:00SAN - SFO
Nonstop1h 38mUnited Airlines
Sat 9/807:00SFO - SAN
Nonstop1h 38mUnited Airlines
Deal found 16/7$125
Wed 13/822:11SAN - SFO
Nonstop1h 39mHawaiian Airlines
Sun 17/807:20SFO - SAN
Nonstop1h 42mHawaiian Airlines
Deal found 17/7$165
Sat 16/808:10SAN - SFO
1 stop9h 10mAlaska Airlines
Mon 18/807:20SFO - SAN
Nonstop1h 42mAlaska Airlines
Deal found 18/7$170
Sat 16/806:35SAN - BZN
1 stop8h 50mSouthwest
Sat 23/805:25BZN - SAN
1 stop4h 45mSouthwest
Deal found 17/7$338
Wed 30/706:45SAN - BZN
1 stop7h 41mUnited Airlines
Wed 13/816:00BZN - SAN
1 stop4h 51mUnited Airlines
Deal found 16/7$350
Thu 4/907:30SAN - BZN
1 stop8h 18mDelta
Sat 13/907:35BZN - SAN
1 stop6h 25mDelta
Deal found 18/7$366
Tue 26/818:53SAN - BZN
2 stops17h 21mAlaska Airlines
Wed 3/905:22BZN - SAN
2 stops7h 24mAlaska Airlines
Deal found 17/7$398
Sat 16/806:15SAN - HLN
1 stop5h 05mDelta
Wed 20/805:50HLN - SAN
1 stop3h 49mDelta
Deal found 17/7$400
Sat 4/1019:50SAN - HLN
1 stop20h 51mAlaska Airlines
Tue 7/1018:18HLN - SAN
2 stops18h 58mAlaska Airlines
Deal found 16/7$457
Thu 4/913:45SAN - BZN
1 stop7h 53mHawaiian Airlines
Sun 14/905:22BZN - SAN
1 stop5h 37mHawaiian Airlines
Deal found 16/7$472

Find flights from San Diego within your budget

Find flights departing from San Diego that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 18 July 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Sat 16/8

06:35-16:25

1 stop8h 50m

Bozeman Gallatin Field

Sat 23/8

05:25-09:10

1 stop4h 45m

$338

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Wed 30/7

06:45-15:26

1 stop7h 41m

Bozeman Gallatin Field

Wed 13/8

16:00-19:51

1 stop4h 51m

$350

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Thu 4/9

07:30-16:48

1 stop8h 18m

Bozeman Gallatin Field

Sat 13/9

07:35-13:00

1 stop6h 25m

$366

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Tue 26/8

18:53-13:14

2 stops17h 21m

Bozeman Gallatin Field

Wed 3/9

05:22-11:46

2 stops7h 24m

$398

San DiegoHelena

SAN - HLN

SANHLN

San Diego

Sat 16/8

06:15-12:20

1 stop5h 05m

Helena

Wed 20/8

05:50-08:39

1 stop3h 49m

$400

San DiegoHelena

SAN - HLN

SANHLN

San Diego

Sat 4/10

19:50-17:41

1 stop20h 51m

Helena

Tue 7/10

18:18-12:16

2 stops18h 58m

$457

San DiegoBozeman

SAN - BZN

SANBZN

San Diego

Thu 4/9

13:45-22:38

1 stop7h 53m

Bozeman Gallatin Field

Sun 14/9

05:22-09:59

1 stop5h 37m

$472

San DiegoHelena

SAN - HLN

SANHLN

San Diego

Tue 23/9

07:00-13:30

1 stop5h 30m

Helena

Thu 2/10

17:18-22:15

1 stop5h 57m

$474

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Sat 2/8

09:45-17:39

1 stop6h 54m

Great Falls

Sun 10/8

18:19-23:42

1 stop6h 23m

$771

San DiegoSydney

SAN - SYD

SANSYD

San Diego

Tue 12/8

09:19-14:40

2 stops36h 21m

Sydney Kingsford Smith

Wed 20/8

16:20-16:30

1 stop17h 10m

$1,126

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 60 results
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Best time to book a flight from San Diego

Have a flexible travel schedule? Discover the best time to fly from San Diego with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Diego

Get recent, data-driven insights about flights from San Diego including ideal travel times, pricing trends, and more.

When is the best time to book a flight from San Diego?

Use this chart to determine the optimal time to book a return flight from San Diego to Sydney. Price data was last updated on 11 July 2025.

The best time to book flights from San Diego is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Diego?

Currently, April is the cheapest month in which you can book a flight from San Diego (average of $745). Flying from San Diego in January will prove the most costly (average of $1,624). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Airline reviews for flights from San Diego

Get insights into the airlines that provide service from San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from San Diego. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Read reviews from past customers who have flown ANA, Asiana Airlines, andDelta from San Diego. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.4
Very Good

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.0
Very Good

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Boarding

8.5

Entertainment

7.9

Food

7.7

Comfort

8.2

Crew

8.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

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Related info for your journey

Access useful and relevant information related to your journey from San Diego. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 18 July 2025.
  • What are the most popular destinations to fly to from San Diego?

    For the current month, the most popular flights from San Diego are Boston, Chicago, Atlanta. Boston, Chicago, Atlanta are the most popular locations from San Diego year round.

  • What is the cheapest flight from San Diego to anywhere?

    Users have flown out of San Diego for as low as $54 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for $537 to fly from San Diego.

  • What is the cheapest premium economy flight from San Diego?

    Options for some of the cheapest premium economy flights from San Diego we have found on Cheapflights are as follows:
    Fly from San Diego to London Heathrow Airport starting at $2,834
    Fly from San Diego to Seattle starting at $2,946

  • What is the cheapest first class flight from San Diego?

    If you’re looking to fly first-class from San Diego to anywhere, put Philadelphia on your list as prices start at $2,481 for this destination.

  • What is the cheapest month to fly from San Diego?

    Currently, the cheapest month for flights from San Diego is April. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from San Diego?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from San Diego?

    Millions of users choose and trust Cheapflights to book the best flight deals from San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from San Diego with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from San Diego, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from San Diego become cheaper?

    Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Diego?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Diego?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Diego with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Diego, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from San Diego become cheaper?

Yes! Start tracking prices for flights from San Diego today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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