HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
USA

$31+ Cheap flights from San Diego (SAN) to the United States

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LAX
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to USA with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Diego to USA

Keep the following information in mind while searching for San Diego to USA flight deals. Data was last updated September 19, 2025.

Round-trip from

$54
(Priceline)

One-way from

$31
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$327

Good round-trip deal

$82 or less

Good one-way deal

$46 or less
From San Diego to USA
Search Deals
One-way flight from San Diego to USA
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from San Diego to USA.
Search Deals
Price to beat on a one-way flight from San Diego to USA.
Search Deals

Find flight deals from San Diego to USA

Cheapest flights from San Diego to USA
Explore the most affordable flight options available from San Diego to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This Priceline deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:25 amSAN - LAS
Nonstop1h 29mMultiple Airlines
Sat 10/46:05 amLAS - SAN
Nonstop1h 24mMultiple Airlines
Deal found 9/16$54
This Frontier deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:00 amSAN - LAS
Nonstop1h 31mFrontier
Fri 10/2410:50 amLAS - SAN
Nonstop1h 27mFrontier
Deal found 9/17$55
This CheapOair deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:15 amSAN - LAS
Nonstop1h 25mSpirit Airlines
Sat 10/46:05 amLAS - SAN
Nonstop1h 24mSpirit Airlines
Deal found 9/18$56
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:25 amSAN - LAS
Nonstop1h 29mFrontier
Tue 9/308:00 pmLAS - SAN
Nonstop1h 24mFrontier
Deal found 9/17$57
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:25 amSAN - LAS
Nonstop1h 29mFrontier
Wed 10/88:00 pmLAS - SAN
Nonstop1h 20mFrontier
Deal found 9/17$58
This Frontier deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:25 amSAN - LAS
Nonstop1h 27mFrontier
Thu 10/2310:34 amLAS - SAN
Nonstop1h 27mFrontier
Deal found 9/18$59
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/41:35 pmSAN - LAS
Nonstop1h 25mMultiple Airlines
Sat 10/117:25 pmLAS - SAN
Nonstop1h 26mMultiple Airlines
Deal found 9/17$60
This Priceline deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:35 pmSAN - LAS
Nonstop1h 25mMultiple Airlines
Fri 9/2610:01 pmLAS - SAN
Nonstop1h 16mMultiple Airlines
Deal found 9/17$61
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:15 amSAN - LAS
Nonstop1h 25mSpirit Airlines
Sat 9/2710:14 pmLAS - SAN
Nonstop1h 20mSpirit Airlines
Deal found 9/18$62
This Booking.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/236:15 amSAN - LAS
Nonstop1h 25mSpirit Airlines
Thu 9/256:05 amLAS - SAN
Nonstop1h 24mSpirit Airlines
Deal found 9/17$63
This Frontier deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:25 amSAN - LAS
Nonstop1h 27mFrontier
Tue 10/148:00 pmLAS - SAN
Nonstop1h 20mFrontier
Deal found 9/18$64
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:15 amSAN - LAS
Nonstop1h 25mSpirit Airlines
Sat 9/2710:14 pmLAS - SAN
Nonstop1h 20mSpirit Airlines
Deal found 9/17$65

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to USA that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 19, 2025.
Use the filters below to find and compare flights from San Diego to the United States that are best for you.

Fly from

San Diego

Fly to

USA

Route

Depart

Return

Price

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 11/6

10:30 am-12:10 pm

Nonstop1h 40m

San Francisco

Mon 11/10

6:55 pm-8:40 pm

Nonstop1h 45m

$77

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 10/14

8:08 pm-9:48 pm

Nonstop1h 40m

San Francisco

Sat 10/18

10:36 pm-12:15 am

Nonstop1h 39m

$77

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 11/7

7:00 am-8:45 am

Nonstop1h 45m

San Francisco

Tue 11/11

11:40 am-1:15 pm

Nonstop1h 35m

$77

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 11/6

12:00 pm-1:50 pm

Nonstop1h 50m

San Francisco

Sun 11/9

5:50 am-7:20 am

Nonstop1h 30m

$77

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 12/17

9:10 am-11:03 am

Nonstop1h 53m

San Francisco

Mon 1/26

2:30 pm-4:06 pm

Nonstop1h 36m

$87

San DiegoLas Vegas

SAN - LAS

SANLAS

San Diego

Sat 11/1

8:59 pm-10:26 pm

Nonstop1h 27m

Las Vegas Harry Reid Intl

Tue 11/4

2:52 pm-4:20 pm

Nonstop1h 28m

$97

San DiegoLas Vegas

SAN - LAS

SANLAS

San Diego

Sun 12/14

10:59 am-12:31 pm

Nonstop1h 32m

Las Vegas Harry Reid Intl

Tue 12/16

4:37 pm-5:53 pm

Nonstop1h 16m

$97

San DiegoLas Vegas

SAN - LAS

SANLAS

San Diego

Thu 1/22

9:59 pm-11:19 pm

Nonstop1h 20m

Las Vegas Harry Reid Intl

Sat 1/24

8:00 am-9:08 am

Nonstop1h 08m

$97

San DiegoLas Vegas

SAN - LAS

SANLAS

San Diego

Wed 11/12

6:35 pm-8:08 pm

Nonstop1h 33m

Las Vegas Harry Reid Intl

Mon 11/17

8:50 am-10:11 am

Nonstop1h 21m

$97

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 12/4

3:05 pm-4:46 pm

Nonstop1h 41m

San Francisco

Wed 12/17

9:57 pm-11:30 pm

Nonstop1h 33m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from San Diego to USA

Have a flexible travel schedule? Discover the best time to fly to USA from San Diego with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from San Diego to the United States

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

Currently, January is the cheapest month in which you can book a flight from San Diego to USA (average of $246). Flying from San Diego to USA in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to US?

Find hourly flight availability from San Diego to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

When flying from San Diego to USA, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Diego to USA

Explore weekly flight availability from San Diego to USA. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 19, 2025.

The most flights from SAN to US0 are scheduled on a Thursday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated September 19, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from San Diego to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,171 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Diego to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Diego to United States?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly out of when you book flights from San Diego to United States.

  • How popular is this San Diego to USA flight route?

    The San Diego to United States flight path was viewed by 105 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Diego to USA?

    Airlines like Southwest, United Airlines, and Alaska Airlines fly from San Diego to USA in about 1h 40m. The time it takes to get you to your destination is usually consistent. The distance from San Diego to USA is about 446 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from San Diego to USA one-way?

    $39 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $49 and $77, respectively.

  • What are the most popular routes from San Diego to USA?

    The most popular flight routes from San Diego to USA are San Diego - New York John F Kennedy Intl, San Diego - Newark and San Diego - Seattle/Tacoma Intl.

  • What are the most reliable airlines from San Diego to USA?

    Before booking your flight to USA from San Diego, check out the most reliable airlines to get you to your destination on time: China Eastern (100%), China Southern (100%), EL AL( 98%).

  • What are the cheapest flights from San Diego to USA?

    The cheapest flight price from San Diego to USA is $98. On average you can expect to pay $789. The most popular route, (San Diego - New York John F Kennedy Intl), can usually be booked for $201.

  • Can I find deals for flights from San Diego to USA that include hotel bookings?

    Yes. In addition to deals on San Diego to USA flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to USA.

  • Can I find deals for business class flights from San Diego to USA?

    Yes. Cheapflights offers flight deals from San Diego to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from San Diego to USA (average of $246). Flying from San Diego to USA in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to USA

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
Los Angeles to Seattle flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
San Francisco to Las Vegas flights
Los Angeles to San Francisco flights
Ontario to Seattle flights
Los Angeles to Honolulu flights
Los Angeles to O'Hare Intl flights
San Francisco to Los Angeles flights
Los Angeles to Las Vegas flights
Los Angeles to Dallas/Fort Worth flights
Ontario to John F Kennedy Intl flights
San Francisco to Seattle flights
Burbank to Las Vegas flights
Los Angeles to Cancún flights
San Francisco to Santa Ana flights
San Francisco to O'Hare Intl flights
Santa Ana to San Francisco flights
Los Angeles to Boston flights
Los Angeles to Mexico City flights
San Francisco to LaGuardia flights
Santa Ana to Las Vegas flights
San Francisco to Ontario flights
Ontario to San Francisco flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Honolulu flights
Los Angeles to Miami flights
Burbank to Newark flights
Ontario to Newark flights
Los Angeles to Denver flights
Los Angeles to Reagan-National flights
Santa Ana to Newark flights
Los Angeles to San Jose flights
Los Angeles to Dulles Intl flights
Los Angeles to Orlando flights
Los Angeles to Portland flights
Oakland to Las Vegas flights
San Francisco to Boston flights
San Jose to Las Vegas flights
Ontario to Dallas/Fort Worth flights
San Diego to John F Kennedy Intl flights
Santa Ana to Seattle flights
Santa Ana to LaGuardia flights
San Jose to Seattle flights
Ontario to O'Hare Intl flights
San Jose to Los Angeles flights
San Francisco to Mexico City flights

Top 9 airlines flying from San Diego to USA

Discover the top 9 airlines that operate flights from San Diego to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$27Average$169FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$29Average$271FlexibilityNo cancel feeOn-time85%
FrontierCheapest$36Average$169FlexibilityNo cancel feeOn-time62%
DeltaCheapest$53Average$297FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$57Average$333FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$67Average$350FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$79Average$343FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$148Average$352FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$158Average$394FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.