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

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

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 36m.

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

Historically, on average around 19% 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 120 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 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 31% 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.

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

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

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 1,429 per week as of January 2026. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.

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

204 flights are operational daily from United States to San Diego as of January 2026. The most popular departure time for this route is 5:00PM, with 35% of flights per day taking off in the afternoon.

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.

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 January 2026, 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.

$37 Cheap Flights from the United States to San Diego in 2026

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Find the cheapest flights from the United States to San Diego

Round-trip

One-way

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

Enter your travel dates to find the best prices.

10:29 pm - 12:08 am

DEN

SAN

2h 39mnonstop

12:23 pm - 3:56 pm

SAN

DEN

2h 33mnonstop

$55Frontier

sáb., feb. 14 - sáb., feb. 28

10:30 pm - 12:09 am

DEN

SAN

2h 39mnonstop

9:18 pm - 12:47 am

SAN

DEN

2h 29mnonstop

$56Frontier

vie., mar. 6 - dom., mar. 8

7:43 pm - 9:26 pm

SFO

SAN

1h 43mnonstop

10:09 pm - 11:59 pm

SAN

SFO

1h 50mnonstop

$117Alaska Airlines

vie., feb. 20 - dom., feb. 22

8:55 pm - 11:44 pm

SEA

SAN

2h 49mnonstop

8:26 pm - 11:40 pm

SAN

SEA

3h 14mnonstop

$122Alaska Airlines

sáb., feb. 28 - lun., mar. 2

5:30 am - 11:50 am

SFO

SAN

6h 20m

1 stop

2:00 pm - 9:20 pm

SAN

SFO

7h 20m

2 stops

$122Southwest

mar., mar. 3 - mar., mar. 3

6:15 am - 7:45 am

SFO

SAN

1h 30mnonstop

6:25 am - 8:15 am

SAN

SFO

1h 50mnonstop

$127Southwest

sáb., feb. 21 - dom., feb. 22

8:00 pm - 10:34 pm

ORD

SAN

4h 34mnonstop

10:35 pm - 4:39 am

SAN

ORD

4h 04mnonstop

$157American Airlines

sáb., feb. 14 - mar., feb. 17

8:45 pm - 11:16 pm

ORD

SAN

4h 31mnonstop

3:07 pm - 9:28 pm

SAN

ORD

4h 21mnonstop

$161American Airlines

mié., abr. 22 - sáb., abr. 25

5:05 pm - 8:45 pm

BOS

SAN

6h 40mnonstop

9:55 pm - 6:25 am

SAN

BOS

5h 30mnonstop

$227Delta

sáb., feb. 21 - mié., feb. 25

5:10 pm - 8:50 pm

BOS

SAN

6h 40mnonstop

9:55 pm - 6:25 am

SAN

BOS

5h 30mnonstop

$232Delta

lun., feb. 9 - vie., feb. 13

Frontier flights from United States to San Diego

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

Frontier

Feb 14

DEN10:29 pmDenver Intl

2h 39m

SAN12:08 amSan Diego

Feb 28

SAN12:23 pmSan Diego

2h 33m

DEN3:56 pmDenver Intl

$55

Frontier

Mar 6

DEN10:30 pmDenver Intl

2h 39m

SAN12:09 amSan Diego

Mar 7

SAN6:25 amSan Diego

2h 35m

DEN10:00 amDenver Intl

$56

Frontier

Mar 17

DEN7:31 pmDenver Intl

2h 43m

SAN9:14 pmSan Diego

Mar 19

SAN9:18 pmSan Diego

2h 29m

DEN12:47 amDenver Intl

$57

American Airlines flights from United States to San Diego

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

American Airlines

Mar 7

DFW5:04 pmDallas/Fort Worth

3h 19m

SAN6:23 pmSan Diego

Mar 14

SAN7:10 amSan Diego

3h 11m

DFW12:21 pmDallas/Fort Worth

$131

American Airlines

Feb 14

ORD8:00 pmChicago O'Hare Intl

4h 34m

SAN10:34 pmSan Diego

Feb 17

SAN10:35 pmSan Diego

4h 04m

ORD4:39 amChicago O'Hare Intl

$157

American Airlines

Apr 22

ORD8:45 pmChicago O'Hare Intl

4h 31m

SAN11:16 pmSan Diego

Apr 25

SAN3:07 pmSan Diego

4h 21m

ORD9:28 pmChicago O'Hare Intl

$161

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

sáb. 2/14

10:29 pm-12:08 am

Nonstop2h 39m

San Diego

sáb. 2/28

12:23 pm-3:56 pm

Nonstop2h 33m

$55

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

vie. 3/6

10:30 pm-12:09 am

Nonstop2h 39m

San Diego

dom. 3/8

9:18 pm-12:47 am

Nonstop2h 29m

$56

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

vie. 2/20

7:43 pm-9:26 pm

Nonstop1h 43m

San Diego

dom. 2/22

10:09 pm-11:59 pm

Nonstop1h 50m

$117

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

sáb. 2/28

8:55 pm-11:44 pm

Nonstop2h 49m

San Diego

lun. 3/2

8:26 pm-11:40 pm

Nonstop3h 14m

$122

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

mar. 3/3

5:30 am-11:50 am

1 stop6h 20m

San Diego

mar. 3/3

2:00 pm-9:20 pm

2 stops7h 20m

$122

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

sáb. 2/21

6:15 am-7:45 am

Nonstop1h 30m

San Diego

dom. 2/22

6:25 am-8:15 am

Nonstop1h 50m

$127

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

sáb. 2/14

8:00 pm-10:34 pm

Nonstop4h 34m

San Diego

mar. 2/17

10:35 pm-4:39 am

Nonstop4h 04m

$157

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mié. 4/22

8:45 pm-11:16 pm

Nonstop4h 31m

San Diego

sáb. 4/25

3:07 pm-9:28 pm

Nonstop4h 21m

$161

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

sáb. 2/21

5:05 pm-8:45 pm

Nonstop6h 40m

San Diego

mié. 2/25

9:55 pm-6:25 am

Nonstop5h 30m

$227

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

lun. 2/9

5:10 pm-8:50 pm

Nonstop6h 40m

San Diego

vie. 2/13

9:55 pm-6:25 am

Nonstop5h 30m

$232

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 October is also very affordable. Most momondo users find prices during this month for around $342.

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 $473. 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 $373. Flights in the morning are often more expensive with an average ticket price of $408.

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 $368 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 $306 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	$73
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 $73. The best round-trip flight deal from United States to San Diego found on momondo in the last 72 hours is $97.

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 in San Diego. From United States there are direct flights to 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 January 2026, 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 MAX 8, representing 15.55% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 14.18%, Airbus A321neo at 13.82%, and Boeing 737-900 at 7.98%.

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 $21	Free Cancellation	Rating 6.3 8,357 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $29	Free Cancellation	Rating 7.8 2,829 reviews	Search Hawaiian Airlines flights
Frontier	PriceFrom $36	Free Cancellation	Rating 5.7 3,055 reviews	Search Frontier flights
JetBlue	PriceFrom $53	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $57	Free Cancellation	Rating 8.0 11,764 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $57	Free Cancellation	Rating 7.4 9,188 reviews	Search United Airlines flights
Delta	PriceFrom $58	Free Cancellation	Rating 7.9 8,081 reviews	Search Delta flights
Southwest	PriceFrom $77	Free Cancellation	Rating 8.0 4,266 reviews	Search Southwest flights
American Airlines	PriceFrom $181	Free Cancellation	Rating 7.2 11,169 reviews	Search American Airlines flights

Coronado

Chula Vista

El Cajon

Julian

Poway

National City

Imperial Beach

San Ysidro

Borrego Springs

La Mesa

Alpine

Lemon Grove

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 $37

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 2/1. 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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Our best Frontier deals on United States to San Diego flight tickets

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

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

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 October is also very affordable. Most momondo users find prices during this month for around $342.

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 $373. Flights in the morning are often more expensive with an average ticket price of $408.

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?

Southwest, United Airlines, and Alaska Airlines 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 19% 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 120 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, JetBlue have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

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

204 flights are operational daily from United States to San Diego as of January 2026. The most popular departure time for this route is 5:00PM, with 35% 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 1,429 per week as of January 2026. The most frequent departure day is Mon, with 19% 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 36m.

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