How many flights depart from United States to San Diego on average per week?

The number of flights available between United States and San Diego is 1,242 per week as of November 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

How many flights depart from United States to San Diego on average per day?

177 flights are operational daily from United States to San Diego as of November 2025. The most popular departure time for this route is 6:00PM, with 35% of flights per day taking off in the evening.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to San Diego flights?

According to our data, Air Canada Rouge have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

What airlines fly to San Diego?

Frontier, Alaska Airlines and American Airlines are the top three most popular airlines that fly to San Diego from United States according to our data. Frontier is the first choice among our users, with 32% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 12 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How often are flights from the United States to San Diego delayed?

Historically, on average around 18% of flights between United States and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 119 minutes.

What is the cheapest airline that flies from United States to San Diego?

United Airlines, Alaska Airlines, and Frontier are the most popular carriers operating from United States to San Diego

How long does it take to fly to San Diego?

On average, it takes 1h 30m to fly from United States to San Diego if you fly out of San Francisco (the most popular airport in United States) and into San Diego (the most popular airport in San Diego). If you’re flying out of Miami and into San Diego, then the flight time is around 5h 38m.

What is the most punctual flight time for the United States to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

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

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

As of November 2025, there are 10 operators available to choose from for flights from United States to San Diego Airport.

How old do you have to be to fly from United States 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 from United States to San Diego Airport.

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

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$39 Cheap Flights from the United States to San Diego in 2025/26

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Recent round-trip flight deals from the United States to San Diego

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2:13 pm - 3:52 pmSFO-SAN

1h 39mnonstop

8:10 pm - 10:03 pmSAN-SFO

1h 53mnonstop

$81Frontier

Find Deal

Wed, Dec 31 - Mon, Jan 5

2:13 pm - 3:52 pmSFO-SAN

1h 39mnonstop

8:10 pm - 10:03 pmSAN-SFO

1h 53mnonstop

$82Frontier

Find Deal

Thu, Dec 18 - Tue, Dec 23

7:10 am - 10:02 amSEA-SAN

2h 52mnonstop

5:35 pm - 8:48 pmSAN-SEA

3h 13mnonstop

$119Delta

Find Deal

Thu, Jan 8 - Tue, Jan 13

7:10 am - 10:02 amSEA-SAN

2h 52mnonstop

1:45 pm - 4:57 pmSAN-SEA

3h 12mnonstop

$120Delta

Find Deal

Thu, Jan 8 - Sun, Jan 11

9:30 am - 1:40 pmSEA-SAN

4h 10m1 stop

6:25 am - 1:30 pmSAN-SEA

7h 05m1 stop

$134Southwest

Find Deal

Thu, Jan 15 - Mon, Jan 19

2:36 pm - 5:20 pmSEA-SAN

2h 44mnonstop

6:15 am - 9:28 amSAN-SEA

3h 13mnonstop

$138Alaska Airlines

Find Deal

Mon, Jan 12 - Mon, Jan 19

12:45 pm - 6:40 pmSEA-SAN

5h 55m1 stop

5:40 pm - 11:05 pmSAN-SEA

5h 25m1 stop

$139Southwest

Find Deal

Thu, Jan 22 - Tue, Jan 27

3:44 pm - 6:26 pmORD-SAN

4h 42mnonstop

8:00 am - 2:29 pmSAN-ORD

4h 29mnonstop

$165Alaska Airlines

Find Deal

Thu, Jan 15 - Sat, Jan 17

8:15 am - 10:48 amORD-SAN

4h 33mnonstop

6:20 am - 12:29 pmSAN-ORD

4h 09mnonstop

$170American Airlines

Find Deal

Wed, Dec 17 - Sun, Jan 11

11:34 am - 4:54 pmIAD-SAN

8h 20m1 stop

7:00 am - 5:16 pmSAN-IAD

7h 16m1 stop

$253American Airlines

Find Deal

Sat, Jan 17 - Tue, Feb 10

Frontier flights from United States to San Diego

Our best Frontier deals on United States to San Diego flight tickets

Frontier

Dec 31

SFO2:13 pmSan Francisco

1h 39m

SAN3:52 pmSan Diego

Jan 5

SAN8:10 pmSan Diego

1h 53m

SFO10:03 pmSan Francisco

$81

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Frontier

Dec 18

SFO2:13 pmSan Francisco

1h 39m

SAN3:52 pmSan Diego

Dec 23

SAN8:10 pmSan Diego

1h 53m

SFO10:03 pmSan Francisco

$82

Find similar

Frontier

Dec 18

SFO2:13 pmSan Francisco

1h 39m

SAN3:52 pmSan Diego

Dec 24

SAN8:10 pmSan Diego

1h 53m

SFO10:03 pmSan Francisco

$83

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Southwest flights from United States to San Diego

Our best Southwest deals on United States to San Diego flight tickets

Southwest

Dec 15

SFO10:30 amSan Francisco

1h 30m

SAN12:00 pmSan Diego

Dec 16

SAN7:10 amSan Diego

7h 15m

2 stops

SFO2:25 pmSan Francisco

$112

Find similar

Southwest

Dec 10

SFO5:05 amSan Francisco

5h 10m

1 stop

SAN10:15 amSan Diego

Dec 14

SAN1:40 pmSan Diego

1h 40m

SFO3:20 pmSan Francisco

$117

Find similar

Southwest

Dec 10

SFO3:15 pmSan Francisco

5h 55m

2 stops

SAN9:10 pmSan Diego

Dec 14

SAN1:40 pmSan Diego

1h 40m

SFO3:20 pmSan Francisco

$122

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momondo Fare Finder

Use the filters below to find and compare flights from the United States to San Diego that are best for you.

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Fly to

Route

Depart

Return

Price

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 12/31

2:13 pm-3:52 pm

Nonstop1h 39m

San Diego

Mon 1/5

8:10 pm-10:03 pm

Nonstop1h 53m

$81

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 12/18

2:13 pm-3:52 pm

Nonstop1h 39m

San Diego

Tue 12/23

8:10 pm-10:03 pm

Nonstop1h 53m

$82

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 1/8

7:10 am-10:02 am

Nonstop2h 52m

San Diego

Tue 1/13

5:35 pm-8:48 pm

Nonstop3h 13m

$119

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 1/8

7:10 am-10:02 am

Nonstop2h 52m

San Diego

Sun 1/11

1:45 pm-4:57 pm

Nonstop3h 12m

$120

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 1/15

9:30 am-1:40 pm

1 stop4h 10m

San Diego

Mon 1/19

6:25 am-1:30 pm

1 stop7h 05m

$134

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Mon 1/12

2:36 pm-5:20 pm

Nonstop2h 44m

San Diego

Mon 1/19

6:15 am-9:28 am

Nonstop3h 13m

$138

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 1/22

12:45 pm-6:40 pm

1 stop5h 55m

San Diego

Tue 1/27

5:40 pm-11:05 pm

1 stop5h 25m

$139

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Thu 1/15

3:44 pm-6:26 pm

Nonstop4h 42m

San Diego

Sat 1/17

8:00 am-2:29 pm

Nonstop4h 29m

$165

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 12/17

8:15 am-10:48 am

Nonstop4h 33m

San Diego

Sun 1/11

6:20 am-12:29 pm

Nonstop4h 09m

$170

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 1/17

11:34 am-4:54 pm

1 stop8h 20m

San Diego

Tue 2/10

7:00 am-5:16 pm

1 stop7h 16m

$253

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How to get the cheapest flight ticket from United States to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

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 $336.

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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $372. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $470. 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 $391. Flights at noon are often more expensive with an average ticket price of $437.

What is the cheapest United States to San Diego flight route?

Fly from Denver Intl to San Diego for the best United States - San Diego flight prices

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 $370 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 $316 on momondo.

What cabin class options are available on United States to San Diego flights?

There are 4 cabin classes available to choose from on United States to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to San Diego flights?

No. A direct flight is the cheapest option for a flight between United States to San Diego.

Cheap United States to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to San Diego

Best Price Found	$69
Fastest flight time	0h 49m
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from United States in the past 72 hours is $69. The best round-trip flight deal from United States to San Diego found on momondo in the last 72 hours is $84.

The fastest flight from United States to San Diego takes 0h 49m

Direct flights go from United States to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

When did momondo last update prices for flights from United States to San Diego Airport?
Prices for flights from United States to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to San Diego Airport?
As of November 2025, there are 10 operators available to choose from for flights from United States to San Diego Airport.
How old do you have to be to fly from United States 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 from United States to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United States to San Diego?
momondo data reveals that the most frequently booked plane model on the route from United States to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets), representing 13.94% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 13.01%, Airbus A321neo at 10.52%, and Boeing 737 MAX 9 at 8.51%.

Best airlines flying from United States to San Diego

Compare and see reviews for airlines that fly from United States to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $29	Free Cancellation	Rating 6.3 8,156 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $36	Free Cancellation	Rating 5.8 3,101 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $38	Free Cancellation	Rating 7.8 2,815 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $57	Free Cancellation	Rating 7.4 9,050 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $58	Free Cancellation	Rating 8.0 11,362 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $77	Free Cancellation	Rating 8.0 4,254 reviews	Search Southwest flights
Delta	PriceFrom $77	Free Cancellation	Rating 7.9 8,003 reviews	Search Delta flights
JetBlue	PriceFrom $162	Free Cancellation	Rating 7.2 2,905 reviews	Search JetBlue flights
American Airlines	PriceFrom $183	Free Cancellation	Rating 7.2 11,037 reviews	Search American Airlines flights

Coronado

Chula Vista

El Cajon

Julian

National City

Imperial Beach

La Mesa

Poway

Borrego Springs

San Ysidro

Lemon Grove

Alpine

Santee

Why use momondo?

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

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

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

Flights from United States to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to San Diego?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United States to San Diego.

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

Yes. momondo can track prices for United States to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from the United States to San Diego from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to San Diego departing on 12/16. 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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Frontier flights from United States to San Diego

Our best Frontier deals on United States to San Diego flight tickets

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Our best Southwest deals on United States to San Diego flight tickets

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Use the filters below to find and compare flights from the United States to San Diego that are best for you.

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How to get the cheapest flight ticket from United States to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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 $336.

What is the cheapest day to depart on your flight 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 $391. Flights at noon are often more expensive with an average ticket price of $437.

What is the cheapest United States to San Diego flight route?

Fly from Denver Intl to San Diego for the best United States - San Diego flight prices

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

What cabin class options are available on United States to San Diego flights?

There are 4 cabin classes available to choose from on United States to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to San Diego flights?

No. A direct flight is the cheapest option for a flight between United States to San Diego.

What is the cheapest airline that flies from United States to San Diego?

United Airlines, Alaska Airlines, and Frontier are the most popular carriers operating from United States to San Diego

What airlines fly to San Diego?

How often are flights from the United States to San Diego delayed?

Historically, on average around 18% of flights between United States and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 119 minutes.

What is the most punctual flight time for the United States to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to San Diego flights?

According to our data, Air Canada Rouge have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

How many flights depart from United States to San Diego on average per day?

177 flights are operational daily from United States to San Diego as of November 2025. The most popular departure time for this route is 6:00PM, with 35% of flights per day taking off in the evening.

How many flights depart from United States to San Diego on average per week?

The number of flights available between United States and San Diego is 1,242 per week as of November 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

How long does it take to fly to San Diego?

On average, it takes 1h 30m to fly from United States to San Diego if you fly out of San Francisco (the most popular airport in United States) and into San Diego (the most popular airport in San Diego). If you’re flying out of Miami and into San Diego, then the flight time is around 5h 38m.

Cheap United States to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to San Diego

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

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

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

How old do you have to be to fly from United States to San Diego Airport?

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

What is the most popular plane model from United States to San Diego?

Best airlines flying from United States to San Diego

Compare and see reviews for airlines that fly from United States to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

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

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

How can momondo help me find flights from United States to San Diego?

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

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.

Find better results for your trip to the United States

Airports servicing California