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$110+ 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 19/9. 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
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags

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 13 August 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoBozeman

SAN San Diego - BZN Bozeman Gallatin Field

SANBZN

San Diego

Sat 12/9

14:35-20:10

1 stop4h 35m

Bozeman Gallatin Field

Thu 17/9

14:30-16:15

Nonstop2h 45m

$338

San DiegoBozeman

SAN San Diego - BZN Bozeman Gallatin Field

SANBZN

San Diego

Sat 30/1

07:00-13:09

1 stop5h 09m

Bozeman Gallatin Field

Sat 6/2

12:43-14:36

Nonstop2h 53m

$344

San DiegoBozeman

SAN San Diego - BZN Bozeman Gallatin Field

SANBZN

San Diego

Fri 9/10

19:05-00:27

1 stop4h 22m

Bozeman Gallatin Field

Tue 13/10

05:30-08:47

1 stop4h 17m

$403
Fastest return journey

San DiegoBozeman

SAN San Diego - BZN Bozeman Gallatin Field

SANBZN

San Diego

Tue 29/9

17:00-20:45

Nonstop2h 45m

Bozeman Gallatin Field

Sat 3/10

12:49-14:37

Nonstop2h 48m

$420

San DiegoHelena

SAN San Diego - HLN Helena

SANHLN

San Diego

Tue 8/12

16:50-15:31

1 stop21h 41m

Helena

Sat 12/12

16:08-20:56

1 stop5h 48m

$570

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Thu 10/12

17:51-16:13

1 stop21h 22m

Great Falls

Mon 14/12

16:55-15:52

1 stop23h 57m

$606

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Tue 1/12

17:05-16:13

2 stops22h 08m

Great Falls

Tue 15/12

16:55-22:56

1 stop7h 01m

$607

San DiegoGreat Falls

SAN San Diego - GTF Great Falls

SANGTF

San Diego

Wed 16/9

07:00-17:41

2 stops9h 41m

Great Falls

Wed 30/9

18:21-23:52

1 stop6h 31m

$657

San DiegoHelena

SAN San Diego - HLN Helena

SANHLN

San Diego

Sat 26/12

06:15-12:24

1 stop5h 09m

Helena

Sat 2/1

05:45-09:06

1 stop4h 21m

$743

San DiegoHelena

SAN San Diego - HLN Helena

SANHLN

San Diego

Sat 26/12

06:15-12:24

1 stop5h 09m

Helena

Thu 31/12

05:45-09:06

1 stop4h 21m

$743

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

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

Currently, November is the cheapest month in which you can book a flight from San Diego (average of $1,364). Flying from San Diego in January will prove the most costly (average of $2,270). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from San Diego?

San Diego offers frequent flights to Chicago (428 flights per day), San Francisco (186 flights per day) and Dallas (184 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $209
Panama City Tocumen Intl
Panama City Tocumen Intl
From $444
San Francisco
San Francisco
From $153
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $657

What is the cheapest place to fly to from San Diego?

The cheapest city to fly to from San Diego is Denver Intl, with prices starting at $126. Explore other affordable destinations below.

Denver Intl
Denver Intl
From $126
San Francisco
San Francisco
From $153
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $209
Portland
Portland
From $249

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

The best time to book flights from San Diego is 38 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.

Browse thousands of different options on Cheapflights for your next trip

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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 13 August 2026.

  • What are the most popular destinations to fly to from San Diego?

    For the current month, the most popular flights from San Diego are Denver, Boston, Dallas/Fort Worth Airport. Denver, Boston, Dallas/Fort Worth Airport 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 $126 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for $561 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 Orlando Airport starting at $2,423

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

    If you’re looking to fly first-class from San Diego to anywhere, put Boston on your list as prices start at $2,062 for this destination.

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

    Currently, the cheapest month for flights from San Diego is November. 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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