Hi, I've summed up all the key info for San Diego to Phoenix flights

Cheapest one-way

$ 24
Frontier Airlines Sat, Oct 24

85% below next 30d avg. ($155)

Cheapest round-trip

$ 39
Frontier Airlines Wed, Sep 30

83% below next 30d avg. ($230)

When to travel

November Cheapest month
July Peak month

Fastest flight

1h 27m Avg: 1h 27m

Recommended airlines

With a lowest one-way fare of $24 , travelers can expect an average price of $155 for upcoming trips, while round-trip tickets start at $39 . Flights typically take around 1h 27m , but the fastest nonstop option completes the journey in just 1h 27m minutes. There are 74 flights weekly on this route. You can arrive at any of the following airports in Phoenix: Phoenix Sky Harbor International Airport (PHX) , Mesa Gateway Airport (AZA) , Falcon Field Airport (MSC) , and Scottsdale Airport (SCF) . Flights from San Diego International Airport to Phoenix Sky Harbor International Airport (SAN-PHX) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 2d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from San Diego to Phoenix over the next 90 days, with one-way fares from $24 and round-trip from $39. Based on Trip.com's latest 7-day flight data.

Flight.News
An Extreme Heat Warning remains in effect for Phoenix until 8 PM MST this evening. Dangerously hot conditions with afternoon temperatures of 105 to 109 degrees create a Major Heat Risk, significantly increasing the danger of heat cramps, heat exhaustion, and heat stroke. In Maricopa County, call 2-1-1 or visit maricopa.gov/heat to locate free cooling centers, water, and transportation assistance.
Flights from San Diego to Phoenix operate an average of 27 times per day over the past 7 days, with a 29.1% on-time departure rate and a 73.7% on-time arrival rate.

Which airlines are the most popular for San Diego to Phoenix flights?

The most popular airlines flying from San Diego to Phoenix are Frontier Airlines, Alaska Airlines, and American Airlines, among 3 carriers on this route. Frontier Airlines offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Frontier Airlines logo Frontier Airlines
Alaska Airlines logo Alaska Airlines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from San Diego to Phoenix according to previous 12 months data from Trip.com.

Flight Info | San Diego to Phoenix

The distance between San Diego and Phoenix is approximately 486.03 km. It takes around 1 hour 27 minutes on average to fly from San Diego to Phoenix. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price $24
Cheapest round-trip ticket price $39
Off-season for travel November
Peak season for travel July
Flight distance 486.03 km
Average flight time 1 hour 27 minutes
Popular airline Frontier Airlines
Frequency ~80/week
Flight statistics for the San Diego–Phoenix route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from San Diego to Phoenix

Which month has the cheapest one-way flights from San Diego to Phoenix?

The average price of one-way flights from San Diego to Phoenix purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from San Diego to Phoenix is October, with an average price of $65; while the month with the highest flight price is usually July, with an average price of up to $186.

$186
$126
$65
$5
    Cheapest
  • $89
    Sep
  • $65
    Oct
  • $159
    Nov
  • $94
    Dec
  • $94
    Jan
  • $94
    Feb
  • $105
    Mar
  • $66
    Apr
  • $102
    May
  • $142
    Jun
  • $186
    Jul
  • $138
    Aug

Frequently Asked Questions

  • What are the cheapest flights from San Diego to Phoenix (SAN-PHX)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $24 on Cheapest nonstop routes (e.g. SAN to PHX on Sat, Oct 24), while Frontier Airlines offers Cheapest nonstop round-trips from $39 departing on Wed, Sep 30 and returning on Wed, Oct 7.
  • At the moment, you can catch a nonstop flight from San Diego to Phoenix with the following airlines, including: Frontier Airlines Alaska Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 1 hour 27 minutes to fly from San Diego (SAN) to Phoenix (PHX).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Diego to Phoenix is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 74 flight per week flying from San Diego to Phoenix. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA3387 (12:22)
  • To find best deals on flights from San Diego to Phoenix, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Oct 24, with one-way flights priced at just $24.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Phoenix travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Diego to Phoenix is November, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from San Diego to Phoenix on September 30, 2026 with Frontier Airlines, with prices starting at $39.
  • You can arrive at any of the following airports in Phoenix: Phoenix Sky Harbor International Airport (PHX), Mesa Gateway Airport (AZA), Falcon Field Airport (MSC), and Scottsdale Airport (SCF). Flights from San Diego International Airport to Phoenix Sky Harbor International Airport (SAN-PHX) are by far the most popular option for this route.
  • The time difference between Phoenix and San Diego is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Diego to Phoenix is $155. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from San Diego to Phoenix is $230. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter San Diego and Phoenix, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from San Diego to Phoenix. Check baggage, seat and payment fees before comparing the final price.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.