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 2,116 per week as of July 2025. The most frequent departure day is Thu, with 17% of weekly flights leaving on this day.

How long does it take to fly to San Diego?

On average, it takes 54m to fly from United States to San Diego if you fly out of Los Angeles (the most popular airport in United States) and into San Diego (the most popular airport in San Diego). If you’re flying out of San Francisco and into San Diego, then the flight time is around 1h 28m.

What airlines fly to San Diego?

Frontier, United Airlines and Alaska 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 40% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 11 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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

302 flights are operational daily from United States to San Diego as of July 2025. The most popular departure time for this route is 4:00PM, with 37% of flights per day taking off in the afternoon.

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

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

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 July 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.

$17 Cheap Flights from the United States to San Diego in 2025

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Find the cheapest flights from the United States to San Diego

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

10:37 am - 12:17 pmSFO-SAN

1h 40mnonstop

5:53 pm - 7:39 pmSAN-SFO

1h 46mnonstop

$35Frontier

Find Deal

Mon, Jul 21 - Thu, Jul 24

10:44 am - 12:17 pmOAK-SAN

1h 33mnonstop

8:16 am - 9:40 amSAN-OAK

1h 24mnonstop

$47Spirit Airlines

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Wed, Aug 13 - Mon, Aug 18

7:47 pm - 9:19 pmSJC-SAN

1h 32mnonstop

8:43 am - 10:23 amSAN-SJC

1h 40mnonstop

$63Alaska Airlines

Find Deal

Sat, Aug 9 - Wed, Aug 20

6:15 am - 7:55 amSJC-SAN

1h 40mnonstop

8:43 am - 10:23 amSAN-SJC

1h 40mnonstop

$71Alaska Airlines

Find Deal

Thu, Aug 14 - Wed, Aug 20

10:35 pm - 12:15 amSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$82United Airlines

Find Deal

Mon, Aug 4 - Tue, Aug 5

10:35 pm - 12:15 amSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$86United Airlines

Find Deal

Fri, Jul 25 - Wed, Jul 30

9:00 pm - 11:23 pmORD-SAN

4h 23mnonstop

2:57 pm - 9:14 pmSAN-ORD

4h 17mnonstop

$144American Airlines

Find Deal

Mon, Aug 18 - Tue, Aug 26

10:00 pm - 10:52 pmDFW-SAN

2h 52mnonstop

2:48 pm - 7:54 pmSAN-DFW

3h 06mnonstop

$150American Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

5:35 pm - 8:52 pmBOS-SAN

6h 17mnonstop

10:05 pm - 6:49 amSAN-BOS

5h 44mnonstop

$237Delta

Find Deal

Tue, Aug 12 - Sat, Aug 16

5:30 pm - 8:41 pmJFK-SAN

6h 11mnonstop

1:05 pm - 10:05 pmSAN-JFK

6h 00mnonstop

$257Delta

Find Deal

Sat, Aug 30 - Sat, Sep 6

United Airlines flights from United States to San Diego

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

United Airlines

Aug 4

SFO10:35 pmSan Francisco

1h 40m

SAN12:15 amSan Diego

Aug 5

SAN6:20 amSan Diego

1h 38m

SFO7:58 amSan Francisco

$82

Find similar

United Airlines

Jul 25

SFO10:35 pmSan Francisco

1h 40m

SAN12:15 amSan Diego

Jul 30

SAN6:20 amSan Diego

1h 38m

SFO7:58 amSan Francisco

$86

Find similar

United Airlines

Aug 8

SFO7:00 amSan Francisco

1h 38m

SAN8:38 amSan Diego

Aug 12

SAN6:20 amSan Diego

1h 38m

SFO7:58 amSan Francisco

$90

Find similar

Frontier flights from United States to San Diego

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

Frontier

Jul 21

SFO10:37 amSan Francisco

1h 40m

SAN12:17 pmSan Diego

Jul 24

SAN5:53 pmSan Diego

1h 46m

SFO7:39 pmSan Francisco

$35

Find similar

Frontier

Jul 21

SFO10:37 amSan Francisco

1h 40m

SAN12:17 pmSan Diego

Jul 24

SAN5:53 pmSan Diego

1h 46m

SFO7:39 pmSan Francisco

$55

Find similar

Frontier

Jul 21

SFO10:37 amSan Francisco

1h 40m

SAN12:17 pmSan Diego

Jul 25

SAN5:53 pmSan Diego

1h 46m

SFO7:39 pmSan Francisco

$56

Find similar

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

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of October, then departing from United States during the month September is also very affordable. Most momondo users find prices during this month for around $330.

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 $370. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $460. 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 $552.

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

Fly from Las Vegas Harry Reid 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 $364 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 $310 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	$17
Fastest flight time	1h 20m
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 $17. The best round-trip flight deal from United States to San Diego found on momondo in the last 72 hours is $35.

The fastest flight from United States to San Diego takes 1h 20m

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 July 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 11.71% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 10.22%, Airbus A321neo at 9.88%, and Boeing 737 MAX 8 at 9.26%.

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 $30	Free Cancellation	Rating 6.3 8,055 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $37	Free Cancellation	Rating 5.9 3,271 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $38	Free Cancellation	Rating 7.8 2,561 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $57	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $61	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Delta	PriceFrom $68	Free Cancellation	Rating 8.0 7,952 reviews	Search Delta flights
Southwest	PriceFrom $85	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights
Sun Country Air	PriceFrom $142	Free Cancellation	Rating 6.9 335 reviews	Search Sun Country Air flights
JetBlue	PriceFrom $153	Free Cancellation	Rating 7.3 2,910 reviews	Search JetBlue flights
American Airlines	PriceFrom $160	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Coronado

El Cajon

Chula Vista

Julian

National City

La Mesa

Imperial Beach

San Ysidro

Poway

Borrego Springs

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 $17

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 7/21. 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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Big names and deals

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Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from the United States to San Diego

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

Recent one-way flight deals from the United States to San Diego

Recent last minute flight deals from the United States to San Diego

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United Airlines flights from United States to San Diego

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

Frontier flights from United States to San Diego

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

See travel insights to San Diego from

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 October, then departing from United States during the month September is also very affordable. Most momondo users find prices during this month for around $330.

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 $376. Flights at noon are often more expensive with an average ticket price of $552.

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

Fly from Las Vegas Harry Reid 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?

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

What airlines fly to San Diego?

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

302 flights are operational daily from United States to San Diego as of July 2025. The most popular departure time for this route is 4:00PM, with 37% of flights per day taking off in the afternoon.

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 2,116 per week as of July 2025. The most frequent departure day is Thu, with 17% of weekly flights leaving on this day.

How long does it take to fly to San Diego?

On average, it takes 54m to fly from United States to San Diego if you fly out of Los Angeles (the most popular airport in United States) and into San Diego (the most popular airport in San Diego). If you’re flying out of San Francisco and into San Diego, then the flight time is around 1h 28m.

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