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$227+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SAN
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Find cheap flights from Cancún to San Diego with Cheapflights

1. Tell us where you want to go

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Cheap 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 21, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/137:51 am
CUN
-
SAN
1 stop15h 34m
United Airlines
Mon 8/172:24 pm
SAN
-
CUN
1 stop14h 17m
United Airlines
Deal found 7/20$436
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/271:43 pm
CUN
-
SAN
2 stops10h 44m
United Airlines
Mon 8/316:28 pm
SAN
-
CUN
2 stops13h 38m
United Airlines
Deal found 7/20$438
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 8/137:51 am
CUN
-
SAN
2 stops14h 04m
United Airlines
Sat 8/155:00 pm
SAN
-
CUN
2 stops17h 02m
United Airlines
Deal found 7/20$455
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Thu 8/207:51 am
CUN
-
SAN
1 stop7h 26m
United Airlines
Sat 8/296:28 pm
SAN
-
CUN
2 stops13h 38m
United Airlines
Deal found 7/17$457
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 8/157:51 am
CUN
-
SAN
1 stop15h 34m
United Airlines
Wed 8/1910:13 am
SAN
-
CUN
1 stop7h 06m
United Airlines
Deal found 7/20$459
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Sat 8/157:51 am
CUN
-
SAN
1 stop15h 34m
United Airlines
Tue 9/16:20 am
SAN
-
CUN
2 stops10h 59m
United Airlines
Deal found 7/18$460
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
CUN
-
SAN
2 stops29h 28m
Multiple Airlines
Fri 8/146:25 am
SAN
-
CUN
1 stop28h 24m
Multiple Airlines
Deal found 7/20$470
This Frontier deal was found by Cheapflights users on 7/20. 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.
Sat 8/1511:10 am
CUN
-
SAN
1 stop9h 50m
Frontier
Sun 8/168:51 pm
SAN
-
CUN
2 stops15h 02m
Frontier
Deal found 7/20$480
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Sun 8/303:38 pm
CUN
-
SAN
1 stop19h 54m
United Airlines
Sun 9/65:00 pm
SAN
-
CUN
2 stops15h 06m
United Airlines
Deal found 7/16$481
This Frontier deal was found by Cheapflights users on 7/20. 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.
Thu 8/133:31 pm
CUN
-
SAN
1 stop10h 20m
Frontier
Fri 8/148:51 pm
SAN
-
CUN
2 stops11h 09m
Frontier
Deal found 7/20$482
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:40 am
CUN
-
SAN
2 stops29h 28m
Multiple Airlines
Sat 8/1510:10 am
SAN
-
CUN
1 stop24h 39m
Multiple Airlines
Deal found 7/20$497

Find 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 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$436
(United Airlines)

One-way from

$227
(Kiwi.com)
Provider with most accurate pricing for Cancun-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cancun-San Diego flights.
Search Deals
From Cancun to San Diego
Search Deals
One-way flight from Cancun to San Diego
Search Deals

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 21, 2026.
Use the filters below to find and compare flights from Cancún to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 8/27

1:43 pm-10:27 pm

2 stops10h 44m

San Diego

Mon 8/31

6:28 pm-10:06 am

2 stops13h 38m

$436

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 8/27

8:01 am-11:00 pm

2 stops16h 59m

San Diego

Mon 8/31

6:15 am-1:30 am

2 stops17h 15m

$436

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 8/13

7:51 am-7:55 pm

2 stops14h 04m

San Diego

Tue 8/18

10:40 pm-2:37 pm

2 stops13h 57m

$436

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 8/14

7:51 am-10:47 pm

2 stops16h 56m

San Diego

Tue 8/18

10:40 pm-2:37 pm

2 stops13h 57m

$436

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 10/30

7:39 am-5:17 pm

2 stops11h 38m

San Diego

Sun 11/1

4:45 pm-11:25 am

2 stops15h 40m

$438
Cheapest one-way

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 11/10

10:35 pm-10:23 am

2 stops38h 48m

$232

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sat 9/26

5:25 am-11:59 pm

2 stops20h 34m

$233
Quickest one-way

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 8/14

3:31 pm-11:51 pm

1 stop10h 20m

$238

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 12/15

4:20 pm-9:17 am

1 stop19h 57m

$256

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 11/10

3:10 pm-11:55 pm

1 stop11h 45m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 14 resultsSorted by cheapest first
1
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Compare providers for flights from Cancún to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cancún to San Diego in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cancún-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cancún-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cancún-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cancún-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cancún-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 and Aeromexico can get you from Cancún to San Diego in just under 10h 44m. Your travel time can differ by up to 6h 15m. There are 2025 mi between Cancún and San Diego. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $153 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 Delta and Southwest, with prices starting from $247 and $249, 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.

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
National City
Chula Vista
Poway
La Mesa
Coronado
Santee
San Ysidro
Julian
Lemon Grove

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