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Cheap Flights from Phoenix to San Diego

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Compare Phoenix to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

Book the best San Diego International fare with no extra fees

Flight deals from Phoenix to San Diego International

Looking for a cheap last-minute deal or the best return flight from Phoenix to San Diego International? Find the lowest prices on one-way and return tickets right here.
San Diego.$106 per passenger.Departing Mon, 5 May, returning Wed, 7 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Mon, 5 May, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Wed, 7 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $106, select.
San Diego.$110 per passenger.Departing Sun, 27 Apr, returning Wed, 30 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Sun, 27 Apr, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Wed, 30 Apr, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $110, select.
San Diego.$124 per passenger.Departing Thu, 24 Apr, returning Fri, 2 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Thu, 24 Apr, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Fri, 2 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $124, select.
San Diego.$124 per passenger.Departing Sat, 10 May, returning Wed, 4 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Sat, 10 May, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Wed, 4 Jun, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $124, select.
San Diego.$155 per passenger.Departing Thu, 26 Jun, returning Tue, 1 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Thu, 26 Jun, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Tue, 1 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $155, select.
San Diego.$155 per passenger.Departing Mon, 23 Jun, returning Wed, 25 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Mon, 23 Jun, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Wed, 25 Jun, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $155, select.
San Diego.$155 per passenger.Departing Mon, 7 Jul, returning Wed, 9 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Mon, 7 Jul, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Wed, 9 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $155, select.
San Diego.$174 per passenger.Departing Tue, 12 Aug, returning Sun, 17 Aug.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 12 Aug, arriving in San Diego International.Inbound direct flight with Frontier Airlines departs from San Diego International on Sun, 17 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $174, select.

Find the cheapest month to fly from Phoenix to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to San Diego International flights are currently cheapest in May.
Apr
from $110
May
from $106
Jun
from $155
Jul
from $155
Aug
from $174
Sep
from $487
Oct
from $599
Nov
from $598
Dec
from $601
Jan
Find prices
Feb
Find prices
Mar
Find prices

Direct flights from Phoenix to San Diego International

Phoenix to San Diego International: Alternative routes

Compare routes from Phoenix to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Phoenix to San Diego: Flight information

The things to know before you go.
Cheapest flight found$106
Cheapest month to flyMay
Average flight time1 hr, 16 mins
Most popular airlineSouthwest Airlines
Average flights per week520

Finding cheap flights from Phoenix to San Diego International: Frequently asked questions

The best price we found for a return flight from Phoenix to San Diego International is $106. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 16 minutes is the average flight time from Phoenix to San Diego International.
Southwest Airlines, American Airlines and Alaska Airlines fly direct from Phoenix to San Diego International.
As of April 2025, there are 520 flights per week flying from Phoenix to San Diego International.
The cheapest month to fly from Phoenix to San Diego International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to San Diego International Airport on Monday, 5 May 2025.
Yes – the average flight time is 1 hour and 16 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Diego International is Frontier Airlines .

Travelling from Phoenix to San Diego International Airport (SAN): what you need to know

  • Kick off your journey at one of Phoenix's main airports, Phoenix Sky Harbour International Airport (PHX) or Phoenix-Mesa Gateway Airport (AZA). Check out your options for booking a flight from Phoenix to San Diego International Airport (SAN) departing from either of these.

  • Approximately 1 hour 15 minutes is how long you'll be travelling on a direct flight from Phoenix to San Diego International Airport.

  • Phoenix and San Diego (where San Diego International Airport is located) share the UTC-7 timezone. That means you won't need to adjust your watch when you land.

  • The most popular route is from Phoenix Sky Harbour International Airport (PHX) to San Diego International Airport (SAN), with 107 direct weekly services. If you want to head off as soon as possible, the earliest flight from PHX to SAN is the 05:50 Southwest Airlines option. If you prefer travelling later, the final departure is at 23:19 with American Airlines.

  • Your flight from Phoenix to SAN won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Getting on a plane during a peak time like July? Busy periods (like summer, Christmas and New Year) can easily add another hour at check-in and security. Be extra cautious and arrive up to four hours before an international flight and two hours before domestic departures.

Airports in Phoenix

Phoenix Sky Harbour International Airport (PHX)

About San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • From San Diego International Airport, San Diego is approximately 5 kilometres away. It takes around 9 minutes to get to the centre driving.

  • Getting to the centre on public transport will take you around 20 minutes.

How to find the cheapest flights from Phoenix to San Diego International Airport (SAN)

  • Lock in a one-way ticket from Phoenix to San Diego International Airport from $62 or travel return from just $106. Fares listed are subject to change and may differ when you make your booking.

  • It's often best to book in advance if you're hoping to get flight tickets from Phoenix to SAN. That's because airlines change prices based on demand, which tends to increase closer to the departure date.

  • The 'Whole month' tool shows you the cheapest tickets from Phoenix to San Diego International Airport across the month. It's a good way to snap up a bargain if your plans are flexible.

  • Create a Price Alert for flight tickets from Phoenix to SAN. There's no need to check back in every day to find out if prices have dropped. We'll let you know the moment the price changes.

  • Make the most of the filters to find your ideal journey. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Phoenix to San Diego International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and number of stops.

The best time to fly from Phoenix to San Diego International Airport (SAN)

  • May is the quietest time of year to travel to San Diego. Alternatively, follow the crowds and go in July. This is the most popular month for flights from Phoenix to San Diego International Airport, but the best time to go is your call.

  • The warmest month in San Diego is August, with the temperature ranging between 17ºC and 28ºC. Lock in your flights from Phoenix to SAN in this month if you enjoy this type of weather.

  • Look for cheap flights from Phoenix to San Diego International Airport in February if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 7ºC and 23ºC on average.

More about San Diego

  • Start your San Diego trip off on the right foot by choosing the ideal place to stay. After booking your flight from Phoenix to San Diego International Airport, browse our selection of hotels including:

  • Every great holiday has to include some sightseeing. San Diego Zoo, USS Midway Museum and SeaWorld San Diego are must-do's during your San Diego adventure.

Complete your San Diego trip with a car rental

  • Close all those tabs and leave the hard work to us. We can also help you find deals on car rentals in San Diego once you've booked your hotel and cheap flight from Phoenix to San Diego International Airport. Easily compare prices in one place and drive off with the perfect ride for less.

Plan the rest of your trip from Phoenix to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.