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$42+ Cheap flights from Gilbert, AZ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SAN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Gilbert to San Diego are usually found in August or February, booked 80 days in advance, depart on a Saturday or Friday and return on a Friday

Cheap flight deals from Gilbert to San Diego

Keep the following information in mind while searching for Gilbert to San Diego flight deals. Data was last updated July 31, 2025.

Round-trip from

$84
(Frontier)

One-way from

$42
(Frontier)

Popular in

March

Cheapest in

August

Average price

$133
From Gilbert to San Diego
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One-way flight from Gilbert to San Diego
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Highest demand for flights based on searches. 7% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Gilbert to San Diego

Cheapest flights from Gilbert to San Diego
Explore the most affordable flight options available from Gilbert to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Frontier deal was found by Cheapflights users on 7/30. 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.
Fri 8/226:00 amPHX - SAN
Nonstop1h 16mFrontier
Mon 8/257:43 pmSAN - PHX
Nonstop1h 30mFrontier
Deal found 7/30$84
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Sat 9/134:30 pmPHX - SAN
Nonstop1h 17mAlaska Airlines
Sat 9/201:55 pmSAN - PHX
Nonstop1h 35mAlaska Airlines
Deal found 7/30$90
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:00 amPHX - SAN
Nonstop1h 17mHawaiian Airlines
Fri 8/298:33 amSAN - PHX
Nonstop1h 26mHawaiian Airlines
Deal found 7/31$91
This Trip.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/206:00 amPHX - SAN
Nonstop1h 17mMultiple Airlines
Sun 9/211:55 pmSAN - PHX
Nonstop1h 35mMultiple Airlines
Deal found 7/29$93
This Southwest deal was found by Cheapflights users on 7/30. 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.
Sat 8/231:30 pmPHX - SAN
1 stop5h 45mSouthwest
Mon 8/258:40 pmSAN - PHX
Nonstop1h 25mSouthwest
Deal found 7/30$107

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gilbert 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 July 31, 2025.
Use the filters below to find and compare flights from Gilbert to San Diego that are best for you.

Fly from

Gilbert

Fly to

San Diego

Route

Depart

Return

Price

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 8/22

6:00 am-7:16 am

Nonstop1h 16m

San Diego

Mon 8/25

7:43 pm-9:13 pm

Nonstop1h 30m

$84

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Sat 9/13

4:30 pm-5:47 pm

Nonstop1h 17m

San Diego

Sat 9/20

1:55 pm-3:30 pm

Nonstop1h 35m

$90

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Fri 8/29

6:00 am-7:17 am

Nonstop1h 17m

San Diego

Fri 8/29

8:33 am-9:59 am

Nonstop1h 26m

$91

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Sat 9/20

6:00 am-7:17 am

Nonstop1h 17m

San Diego

Sun 9/21

1:55 pm-3:30 pm

Nonstop1h 35m

$93

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Sat 8/23

1:30 pm-7:15 pm

1 stop5h 45m

San Diego

Mon 8/25

8:40 pm-10:05 pm

Nonstop1h 25m

$107

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Thu 8/21

7:30 am-8:49 am

Nonstop1h 19m

$42

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Wed 10/29

3:15 pm-4:29 pm

Nonstop1h 14m

$46

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Wed 9/3

6:00 am-7:17 am

Nonstop1h 17m

$49

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Tue 10/28

3:45 pm-8:05 pm

1 stop4h 20m

$58

PhoenixSan Diego

PHX - SAN

PHXSAN

Phoenix Sky Harbor Intl

Sun 8/31

7:10 am-12:27 pm

1 stop5h 17m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 13 results
1
2

Best time to book a flight from Gilbert to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Gilbert to San Diego. Price data was last updated on July 25, 2025.

The best time to book flights from Gilbert to San Diego is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Gilbert to San Diego (average of $286). Flying from Gilbert 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 G1L to SAN?

Find hourly flight availability from Gilbert 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Gilbert to San Diego as you normally would.

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

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

Travelers seeking maximum savings on their Gilbert 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 Gilbert to San Diego

Explore weekly flight availability from Gilbert 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 July 31, 2025.

The most flights from G1L to SAN are scheduled on a Thursday (28 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Gilbert to San Diego?

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 July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Gilbert to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Gilbert 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 Gilbert?

    Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to San Diego from Gilbert. Booking flights from Gilbert to San Diego (SAN) should be relatively easy as there are 19 daily inbound flights from Gilbert from 7 different airlines.

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

    One-way options have recently been found by users for as low as $42 on Frontier. Other airlines that offer cheap prices include Hawaiian Airlines from $46 and Alaska Airlines from $47 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Gilbert to San Diego on time: Frontier (83%), Southwest (72%), Japan Airlines (67%).

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

    While on average a flight from Gilbert to San Diego is generally $950, our data shows the cheapest flight currently is $41. When looking at the most popular route, (Phoenix Sky Harbor Intl - San Diego), you can expect to pay $81 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Gilbert to San Diego (average of $286). Flying from Gilbert 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine

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Top 7 airlines flying from Gilbert to San Diego

Discover the top 7 airlines that operate flights from Gilbert 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$46Average$140FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$47Average$110FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$91Average$197FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$93Average$274FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$114Average$287FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$119Average$281FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$404FlexibilityNo cancel feeOn-time69%

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