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$176+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SAN
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
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 septembre 15, 2025.

Round-trip from

$278
(United Airlines)

One-way from

$176
(American Airlines)

Popular in

September

Cheapest in

August

Average price

$838
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. 3% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septembre 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
mer. 11/266:30 amCUN - SAN
1 stop12h 55mUnited Airlines
lun. 12/16:47 pmSAN - CUN
2 stops15h 07mUnited Airlines
Deal found 9/14$278
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/54:27 pmCUN - SAN
1 stop8h 54mAmerican Airlines
mar. 12/97:21 amSAN - CUN
1 stop7h 33mAmerican Airlines
Deal found 9/15$287
This Delta deal was found by Cheapflights users on 9/13. 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.
mar. 10/286:05 pmCUN - SAN
1 stop17h 15mDelta
mar. 11/46:20 amSAN - CUN
2 stops14h 58mDelta
Deal found 9/13$307
This United Airlines deal was found by Cheapflights users on 9/14. 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.
jeu. 10/167:51 amCUN - SAN
2 stops17h 50mUnited Airlines
lun. 10/208:39 pmSAN - CUN
2 stops13h 23mUnited Airlines
Deal found 9/14$325
This Southwest deal was found by Cheapflights users on 9/14. 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.
ven. 12/52:05 pmCUN - SAN
2 stops10h 00mSouthwest
mar. 12/96:50 amSAN - CUN
1 stop10h 35mSouthwest
Deal found 9/14$335
This United Airlines deal was found by Cheapflights users on 9/15. 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.
dim. 12/213:07 pmCUN - SAN
1 stop7h 50mUnited Airlines
ven. 1/25:10 pmSAN - CUN
1 stop15h 15mUnited Airlines
Deal found 9/15$362
This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/148:10 amCUN - SAN
2 stops17h 17mDelta
mar. 10/216:20 amSAN - CUN
1 stop8h 45mDelta
Deal found 9/14$368
This United Airlines deal was found by Cheapflights users on 9/13. 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.
mar. 10/285:30 pmCUN - SAN
1 stop18h 51mUnited Airlines
mar. 11/48:00 amSAN - CUN
1 stop6h 50mUnited Airlines
Deal found 9/13$392
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 10/142:24 pmCUN - SAN
1 stop11h 17mUnited Airlines
mar. 10/216:15 amSAN - CUN
1 stop6h 22mUnited Airlines
Deal found 9/14$415

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 septembre 15, 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

mer. 11/26

8:39 am-9:53 pm

1 stop16h 14m

San Diego

lun. 12/1

8:40 pm-1:34 pm

2 stops13h 54m

$278

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

jeu. 10/16

7:51 am-9:45 pm

1 stop15h 54m

San Diego

lun. 10/20

10:30 pm-1:14 pm

1 stop12h 44m

$278

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

jeu. 10/23

3:46 pm-10:15 pm

1 stop8h 29m

San Diego

lun. 10/27

10:30 pm-12:33 pm

1 stop12h 03m

$278

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

ven. 12/5

4:27 pm-10:21 pm

1 stop8h 54m

San Diego

mar. 12/9

7:21 am-5:54 pm

1 stop7h 33m

$287

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

mar. 10/28

6:05 pm-9:20 am

1 stop17h 15m

San Diego

mar. 11/4

6:20 am-12:18 am

2 stops14h 58m

$307

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

mar. 12/9

8:39 am-6:21 pm

1 stop12h 42m

$177

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

jeu. 11/13

1:27 pm-9:39 am

1 stop23h 12m

$177

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

mer. 12/10

2:44 pm-9:51 pm

1 stop10h 07m

$177

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

mar. 10/28

4:55 pm-10:21 am

2 stops19h 26m

$177

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

mar. 11/11

6:30 am-12:13 am

2 stops20h 43m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 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.

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 septembre 15, 2025.
Read through reviews of airlines operating flights from Cancún to San Diego, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

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

    United Airlines can get you from Cancún to San Diego in just under 16h 14m. Your travel time can differ by up to . There are 2025 mi between Cancún and San Diego.

  • What is the cheapest airline to fly from Cancún to San Diego round-trip?

    According to our current data, United Airlines ($255), offers the cheapest pricing from Cancún to San Diego. You may be able to fly from Cancún to San Diego for 52% less than the average price by searching for this airline.

  • 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 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

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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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$255Average$468FlexibilityNo cancel feeOn-time69%

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