Flights to San Diego

$61 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 6/27. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from the United States to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:52 pm - 7:37 pm
SFO
-
SAN
1h 45mnonstop
Frontier Logo
4:36 pm - 6:22 pm
SAN
-
SFO
1h 46mnonstop
$109Frontier
Sat, Sep 26 - Mon, Sep 28
Frontier Logo
10:23 pm - 12:04 am
SFO
-
SAN
1h 41mnonstop
Frontier Logo
7:46 pm - 9:38 pm
SAN
-
SFO
1h 52mnonstop
$110Frontier
Wed, Jul 22 - Sat, Jul 25
Alaska Airlines Logo
6:21 am - 9:10 am
SEA
-
SAN
2h 49mnonstop
Alaska Airlines Logo
3:16 pm - 6:14 pm
SAN
-
SEA
2h 58mnonstop
$183Alaska Airlines
Tue, Jul 14 - Tue, Jul 21
Alaska Airlines Logo
7:26 am - 10:23 am
SEA
-
SAN
2h 57mnonstop
Alaska Airlines Logo
8:35 pm - 11:41 pm
SAN
-
SEA
3h 06mnonstop
$185Alaska Airlines
Wed, Jul 1 - Wed, Jul 8
United Airlines Logo
1:16 pm - 6:35 pm
SEA
-
SAN
5h 19m
1 stop
United Airlines Logo
2:24 pm - 8:43 pm
SAN
-
SEA
6h 19m
2 stops
$188United Airlines
Tue, Aug 25 - Sat, Sep 12
United Airlines Logo
5:20 pm - 10:47 pm
SEA
-
SAN
5h 27m
1 stop
United Airlines Logo
11:20 am - 4:14 pm
SAN
-
SEA
4h 54m
1 stop
$189United Airlines
Sat, Aug 29 - Tue, Sep 1
Southwest Logo
5:55 am - 11:45 am
SEA
-
SAN
5h 50m
2 stops
Southwest Logo
9:30 am - 3:10 pm
SAN
-
SEA
5h 40m
1 stop
$192Southwest
Wed, Aug 19 - Tue, Aug 25
Southwest Logo
7:30 am - 2:25 pm
SEA
-
SAN
6h 55m
1 stop
Southwest Logo
1:55 pm - 4:50 pm
SAN
-
SEA
2h 55mnonstop
$195Southwest
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
3:06 pm - 8:53 pm
BOS
-
SAN
8h 47m
1 stop
American Airlines Logo
9:45 am - 10:06 pm
SAN
-
BOS
9h 21m
1 stop
$247American Airlines
Wed, Jul 1 - Sat, Oct 31
American Airlines Logo
4:06 pm - 10:39 pm
BOS
-
SAN
9h 33m
1 stop
American Airlines Logo
9:25 pm - 9:21 am
SAN
-
BOS
8h 56m
1 stop
$257American Airlines
Wed, Jun 10 - Sat, Jun 13

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 832,500 searches and data was last updated on May 31, 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 round-trip
Quickest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 9/26

5:52 pm-7:37 pm

Nonstop1h 45m

San Diego

Mon 9/28

4:36 pm-6:22 pm

Nonstop1h 46m

$109

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 7/22

10:23 pm-12:04 am

Nonstop1h 41m

San Diego

Sat 7/25

7:46 pm-9:38 pm

Nonstop1h 52m

$110

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 7/14

6:21 am-9:10 am

Nonstop2h 49m

San Diego

Tue 7/21

3:16 pm-6:14 pm

Nonstop2h 58m

$183

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 7/1

7:26 am-10:23 am

Nonstop2h 57m

San Diego

Wed 7/8

8:35 pm-11:41 pm

Nonstop3h 06m

$185

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 8/25

1:16 pm-6:35 pm

1 stop5h 19m

San Diego

Sat 9/12

2:24 pm-8:43 pm

2 stops6h 19m

$188

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Sat 8/29

5:20 pm-10:47 pm

1 stop5h 27m

San Diego

Tue 9/1

11:20 am-4:14 pm

1 stop4h 54m

$189

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 8/19

5:55 am-11:45 am

2 stops5h 50m

San Diego

Tue 8/25

9:30 am-3:10 pm

1 stop5h 40m

$192

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 7/14

7:30 am-2:25 pm

1 stop6h 55m

San Diego

Tue 7/21

1:55 pm-4:50 pm

Nonstop2h 55m

$195

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 7/1

3:06 pm-8:53 pm

1 stop8h 47m

San Diego

Sat 10/31

9:45 am-10:06 pm

1 stop9h 21m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 6/10

4:06 pm-10:39 pm

1 stop9h 33m

San Diego

Sat 6/13

9:25 pm-9:21 am

1 stop8h 56m

$257

Flights are sorted by cheapest round-trip 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?

If you are unable to visit San Diego during the month of September, then departing from United States during the month January is also very affordable. Most momondo users find prices during this month for around $337.

What is the absolute cheapest flight to San Diego?

Users booking trips to San Diego from Phoenix found flights 83% cheaper than the average price of flights to San Diego. To find the cheapest price to San Diego from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from United States to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $369. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $488. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $376. Flights at noon are often more expensive with an average ticket price of $437.

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

You are more likely to see cheaper flights to San Diego from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from United States for as low as $320 on momondo.

Cheap San Diego flight deals and tips

Summary info about San Diego flight prices, duration and airlines

Best One-Way Price

$61

Best Round-Trip Price

$109

Fastest flight time

1h 48m

Popular in

December
The best one-way flight price to San Diego from United States in the last 5 days is $61 (San Francisco to San Diego).
The best round-trip flight price to San Diego from United States in the last 5 days is $109 (San Francisco to San Diego).
The fastest flight to San Diego from United States takes 1h 48m (San Francisco to San Diego).
December has the highest demand for flights to San Diego, with a 5% price increase on average.

Frequently asked questions about flying to San Diego

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

Beaches like Mission Beach are most often visited during August, as the weather is usually above 70 degrees fahrenheit with a low chance of rain. Consider visiting La Jolla Cove during your San Diego visit as well.

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

Most flyers found that booking tickets 89 days in advance of their planned departure date is the best time to get cheap flights to San Diego. During this timeframe, flight prices are around $389. However, in the past 72 hours, people saw flights from United States for as low as $317.

Is there an alternative airport near San Diego?

San Diego Carlsbad-Palomar Airport, Santa Ana J. Wayne/Orange Cnty Airport, Palm Springs Airport, Long Beach Municipal Airport or Ontario Airport can be an alternative airport used for travel to San Diego.

Is there a cheaper alternative to flying into San Diego?

The cheapest airport near San Diego is typically Long Beach Municipal Airport with an average price of $319/person. These prices vary based on where travelers are coming from. It is suggested that travelers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

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

Prices for flights to San Diego Airport refresh daily.

How many operators does momondo search 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 layovers. 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 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.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
Julian
National City
Poway
San Ysidro
La Mesa
Borrego Springs
Lemon Grove
Imperial Beach
Alpine
Santee

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight to San Diego. momondo saves you time and could save you money on your trip.

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

Yes. All flights to San Diego on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to San Diego?

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

Price alerts on flights to San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 6/30
Tue 7/7

Find better results for your trip to San Diego