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$166+ Cheap flights from Cancún (CUN) 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SAN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Cancún to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) 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 July 3, 2025.

Round-trip from

$298
(United Airlines)

One-way from

$166
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$397
From Cancun to San Diego
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One-way flight from Cancun to San Diego
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Highest demand for flights based on searches. 34% potential increase in price ($267 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($34 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 Cancún to San Diego

Cheapest flights from Cancún to San Diego
Explore the most affordable flight options available from Cancún to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:01 pmCUN - SAN
1 stop9h 14mUnited Airlines
Fri 8/228:05 amSAN - CUN
1 stop9h 15mUnited Airlines
Deal found 7/1$298
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/294:20 pmCUN - SAN
1 stop9h 22mDelta
Tue 8/510:30 pmSAN - CUN
2 stops12h 45mDelta
Deal found 7/2$307
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2910:41 amCUN - SAN
2 stops25h 14mSpirit Airlines
Tue 8/53:57 pmSAN - CUN
2 stops16h 50mSpirit Airlines
Deal found 7/2$334
This Booking.com deal was found by Cheapflights users on 7/1. 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.
Sun 10/2611:31 amCUN - SAN
1 stop23h 42mFrontier
Fri 10/317:18 pmSAN - CUN
1 stop12h 27mFrontier
Deal found 7/1$433
This eDestinos deal was found by Cheapflights users on 7/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:16 amCUN - SAN
2 stops32h 52mMultiple Airlines
Fri 10/319:58 amSAN - CUN
3 stops47h 28mMultiple Airlines
Deal found 7/2$570

Cheapflights Fare Finder

Customize your flight search to find flights from Cancún 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 3, 2025.
Use the filters below to find and compare flights from Cancún to San Diego that are best for you.

Fly from

Cancún

Fly to

San Diego

Route

Depart

Return

Price

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 8/15

5:01 pm-12:15 am

1 stop9h 14m

San Diego

Fri 8/22

8:05 am-7:20 pm

1 stop9h 15m

$298

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 7/29

4:20 pm-11:42 pm

1 stop9h 22m

San Diego

Tue 8/5

10:30 pm-1:15 pm

2 stops12h 45m

$307

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 7/29

10:41 am-9:55 am

2 stops25h 14m

San Diego

Tue 8/5

3:57 pm-10:47 am

2 stops16h 50m

$334

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 10/26

11:31 am-9:13 am

1 stop23h 42m

San Diego

Fri 10/31

7:18 pm-9:45 am

1 stop12h 27m

$433

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 10/26

4:16 am-11:08 am

2 stops32h 52m

San Diego

Fri 10/31

9:58 am-11:26 am

3 stops47h 28m

$570

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 7/31

7:58 am-11:44 pm

1 stop17h 46m

$166

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 7/30

11:00 am-5:56 pm

1 stop8h 56m

$169

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sat 8/23

11:51 am-11:37 pm

2 stops13h 46m

$173

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sat 9/13

9:54 am-11:45 pm

2 stops15h 51m

$182

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 7/30

12:40 pm-11:29 pm

2 stops12h 49m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 15 results
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Best time to book a flight from Cancún to San Diego

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

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

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

How much does it cost to fly round-trip from Cancún 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 3, 2025.
Read through reviews of airlines operating flights from Cancún to San Diego, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

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

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

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
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
LATAM Airlines
7.5
Good
1,805 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Aeromexico
7.5
Good
1,718 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

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 Cancún 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 are the cheapest airlines flying from Cancún to San Diego round-trip?

    According to our current data, United Airlines ($298), Delta ($307), and Spirit Airlines ($334) offers the cheapest pricing from Cancún to San Diego. You may be able to fly from Cancún to San Diego for 40% less than the average price by searching for these airlines.

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

    $166 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Spirit Airlines, with prices starting from $169 and $182, respectively.

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

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Cancún to San Diego

Discover the top airline that operate flights from Cancún 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$307Average$468FlexibilityNo cancel feeOn-time69%

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