HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$42+ Cheap flights from Phoenix to San Diego (SAN)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Phoenix to San Diego 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.

Cheapflights Tip: The best prices from Phoenix to San Diego are usually found in February or September, booked 80 days in advance, depart on a Saturday or Friday and return on a Friday

Cheap flight deals from Phoenix to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$74
(Southwest)

One-way from

$42
(Southwest)

Popular in

March

Cheapest in

February

Average price

$107
From Phoenix to San Diego
Search Deals
One-way flight from Phoenix to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Phoenix to San Diego

Cheapest flights from Phoenix to San Diego
Explore the most affordable flight options available from Phoenix to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:45 pmPHX - SAN
Nonstop1h 15mSouthwest
Wed 10/226:25 amSAN - PHX
1 stop3h 40mSouthwest
Deal found 9/10$74
This Frontier deal was found by Cheapflights users on 9/10. 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 12/119:36 amPHX - SAN
Nonstop1h 21mFrontier
Sun 12/1410:52 amSAN - PHX
Nonstop1h 33mFrontier
Deal found 9/10$76
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:15 amPHX - SAN
Nonstop1h 20mSouthwest
Thu 10/235:50 pmSAN - PHX
Nonstop1h 25mSouthwest
Deal found 9/10$77
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:49 pmPHX - SAN
Nonstop1h 17mMultiple Airlines
Sun 10/59:14 pmSAN - PHX
Nonstop1h 25mMultiple Airlines
Deal found 9/11$78
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:05 amPHX - SAN
Nonstop1h 21mMultiple Airlines
Fri 10/179:14 pmSAN - PHX
Nonstop1h 25mMultiple Airlines
Deal found 9/10$80
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:45 pmPHX - SAN
Nonstop1h 15mSouthwest
Sun 10/129:55 pmSAN - PHX
Nonstop1h 30mSouthwest
Deal found 9/10$81
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:40 pmPHX - SAN
Nonstop1h 15mSouthwest
Sun 10/56:35 amSAN - PHX
Nonstop1h 25mSouthwest
Deal found 9/11$84
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/308:00 amPHX - SAN
Nonstop1h 24mFrontier
Sun 11/211:34 amSAN - PHX
Nonstop1h 39mFrontier
Deal found 9/10$87
This Priceline deal was found by Cheapflights users on 9/11. 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.
Fri 11/74:24 pmPHX - SAN
Nonstop1h 16mFrontier
Sun 11/911:34 amSAN - PHX
Nonstop1h 39mFrontier
Deal found 9/11$88
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Sun 10/126:05 amPHX - SAN
Nonstop1h 21mFrontier
Mon 10/138:11 amSAN - PHX
Nonstop1h 28mFrontier
Deal found 9/10$89
This Priceline deal was found by Cheapflights users on 9/10. 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.
Sun 10/55:27 pmPHX - SAN
Nonstop1h 17mFrontier
Mon 10/138:11 amSAN - PHX
Nonstop1h 28mFrontier
Deal found 9/10$90
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:30 pmPHX - SAN
Nonstop1h 17mHawaiian Airlines
Sun 10/58:18 amSAN - PHX
Nonstop1h 26mHawaiian Airlines
Deal found 9/11$91

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to San Diego 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 11, 2025.
Use the filters below to find and compare flights from Phoenix to San Diego that are best for you.

Fly from

Phoenix

Fly to

San Diego

Route

Depart

Return

Price

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 11/6

7:55 am-8:10 am

Nonstop1h 15m

San Diego

Sun 11/9

6:30 am-9:00 am

Nonstop1h 30m

$84

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 10/30

10:05 pm-11:15 pm

Nonstop1h 10m

San Diego

Sun 11/2

5:30 am-8:00 am

Nonstop1h 30m

$84

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 10/2

8:40 pm-9:55 pm

Nonstop1h 15m

San Diego

Sun 10/5

6:35 am-8:00 am

Nonstop1h 25m

$84

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 10/30

8:00 am-9:24 am

Nonstop1h 24m

San Diego

Sun 11/2

11:34 am-2:13 pm

Nonstop1h 39m

$87

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 10/31

6:35 am-7:50 am

Nonstop1h 15m

San Diego

Sun 11/2

5:30 am-8:00 am

Nonstop1h 30m

$87

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 11/14

8:00 pm-8:15 pm

Nonstop1h 15m

San Diego

Sun 11/16

7:45 am-10:05 am

Nonstop1h 20m

$87

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 11/7

4:24 pm-4:40 pm

Nonstop1h 16m

San Diego

Sun 11/9

11:34 am-2:13 pm

Nonstop1h 39m

$88

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 11/7

8:00 pm-8:15 pm

Nonstop1h 15m

San Diego

Mon 11/10

7:20 pm-12:05 am

1 stop3h 45m

$90

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 10/23

6:05 am-7:26 am

Nonstop1h 21m

San Diego

Sun 10/26

8:11 am-9:39 am

Nonstop1h 28m

$96

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 11/7

8:30 am-8:47 am

Nonstop1h 17m

San Diego

Sun 11/9

6:30 am-9:05 am

Nonstop1h 35m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Phoenix to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Phoenix 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 Phoenix to San Diego

How far ahead should I book a flight from Phoenix to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to San Diego. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Phoenix to San Diego, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Phoenix to San Diego (average of $286). Flying from Phoenix to San Diego in March is currently the most expensive (average of $366). 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 PHX to SAN?

Find hourly flight availability from Phoenix to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Phoenix to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 38% versus a flight in the evening.

What is the cheapest day to fly from Phoenix to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix to San Diego

Explore weekly flight availability from Phoenix to San Diego. 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 11, 2025.

The most flights from PH1 to SAN are scheduled on a Thursday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Hawaiian Airlines from Phoenix to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

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 Phoenix to San Diego. 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 into for flights to San Diego from Phoenix?

    Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to San Diego from Phoenix. Booking flights from Phoenix to San Diego (SAN) should be relatively easy as there are 20 daily inbound flights from Phoenix from 7 different airlines.

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

    For as low as $84, Southwest can have you in San Diego from Phoenix in 1h 15m. The distance between Phoenix and San Diego is about 305 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Phoenix to San Diego round-trip?

    Flying on Spirit Airlines is currently your cheapest option to San Diego, with prices starting at $47. Additional round-trip tickets that might be worth considering are offered by Frontier and Hawaiian Airlines, with the lowest prices starting at $49 and $58, respectively. These flights start at 64% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $49. Southwest flights start at $49 while deals on American Airlines start at $49 one-way.

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

    Before booking your flight to San Diego from Phoenix, check out the most reliable airlines to get you to your destination on time: Japan Airlines (80%), Southwest (80%), Hawaiian Airlines( 79%).

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

    The cheapest flight price from Phoenix to San Diego is $46. On average you can expect to pay $537. The most popular route, (Phoenix Sky Harbor Intl - San Diego), can usually be booked for $64.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phoenix to San Diego 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 Phoenix to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Phoenix to San Diego (average of $286). Flying from Phoenix to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

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

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 Phoenix to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Las Vegas flights
Sky Harbor Intl to Los Angeles flights
Sky Harbor Intl to San Francisco flights
Sky Harbor Intl to Ontario flights
Las Vegas to Los Angeles flights
Sky Harbor Intl to San Diego flights
Las Vegas to Santa Ana flights
Las Vegas to Burbank flights
Sky Harbor Intl to Santa Ana flights
Tucson to Las Vegas flights
Las Vegas to Ontario flights
Las Vegas to San Francisco flights
Las Vegas to San Diego flights
Tucson to Los Angeles flights
Sky Harbor Intl to Burbank flights
Tucson to San Francisco flights
Sky Harbor Intl to Reno flights
Sky Harbor Intl to San Jose flights
Las Vegas to Reno flights
Las Vegas to San Jose flights
Las Vegas to Oakland flights
Sky Harbor Intl to Sacramento flights
Sky Harbor Intl to Fresno flights
Tucson to San Diego flights
Phoenix-Mesa Gateway to Las Vegas flights
Tucson to Ontario flights
Sky Harbor Intl to Monterey flights
Las Vegas to Sacramento flights
Sky Harbor Intl to Medford flights
Sky Harbor Intl to Palm Springs flights
Sky Harbor Intl to Oakland flights
Las Vegas to Fresno flights
Sky Harbor Intl to Santa Barbara flights
Sky Harbor Intl to Santa Rosa flights
Las Vegas to Long Beach flights
Las Vegas to Palm Springs flights
Tucson to Santa Ana flights
Sky Harbor Intl to Long Beach flights
Sky Harbor Intl to San Luis Obispo flights
Las Vegas to Santa Rosa flights
Tucson to San Jose flights
Tucson to Sacramento flights
Sky Harbor Intl to Bakersfield flights
Las Vegas to San Luis Obispo flights
Las Vegas to Santa Barbara flights
Las Vegas to Stockton flights
Tucson to Fresno flights
Tucson to Oakland flights
Tucson to Palm Springs flights
Prescott to Los Angeles flights

Top 7 airlines flying from Phoenix to San Diego

Discover the top 7 airlines that operate flights from Phoenix to San Diego. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$47Average$127FlexibilityNo cancel feeOn-time65%
FrontierCheapest$49Average$149FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$58Average$152FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$97Average$235FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$97Average$152FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$117Average$248FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$404FlexibilityNo cancel feeOn-time69%

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.
Site
©2025 Cheapflights