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$159+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SAN
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
1 adult, Economy
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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 May 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Sat 6/63:39 pm
CUN
-
SAN
1 stop10h 11m
Frontier
Sat 6/136:25 am
SAN
-
CUN
1 stop28h 23m
Frontier
Deal found 5/9$328
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Fri 6/53:39 pm
CUN
-
SAN
1 stop10h 11m
Frontier
Mon 6/89:43 am
SAN
-
CUN
2 stops25h 05m
Frontier
Deal found 5/5$330
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/123:35 pm
CUN
-
SAN
1 stop10h 18m
Frontier
Mon 6/1510:04 am
SAN
-
CUN
1 stop24h 44m
Frontier
Deal found 5/8$365
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Fri 6/53:39 pm
CUN
-
SAN
1 stop10h 11m
Frontier
Fri 6/127:35 pm
SAN
-
CUN
2 stops39h 13m
Frontier
Deal found 5/6$378
This Frontier deal was found by Cheapflights users on 5/5. 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 6/43:39 pm
CUN
-
SAN
1 stop19h 03m
Frontier
Wed 6/106:25 am
SAN
-
CUN
1 stop28h 23m
Frontier
Deal found 5/5$380
This Expedia deal was found by Cheapflights users on 5/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/183:35 pm
CUN
-
SAN
1 stop10h 18m
Frontier
Thu 6/2510:04 am
SAN
-
CUN
1 stop24h 44m
Frontier
Deal found 5/4$386
This Frontier deal was found by Cheapflights users on 5/6. 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.
Tue 9/13:35 pm
CUN
-
SAN
1 stop10h 18m
Frontier
Fri 9/44:17 pm
SAN
-
CUN
2 stops19h 56m
Frontier
Deal found 5/6$387
This Frontier deal was found by Cheapflights users on 5/8. 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 7/2311:02 am
CUN
-
SAN
1 stop9h 56m
Frontier
Mon 7/278:29 pm
SAN
-
CUN
2 stops14h 20m
Frontier
Deal found 5/8$396

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 May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(Kiwi.com)

One-way from

$159
(Justfly.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.
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From Cancun to San Diego
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One-way flight from Cancun to San Diego
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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 May 9, 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

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 6/5

3:39 pm-11:50 pm

1 stop10h 11m

San Diego

Fri 6/12

7:35 pm-12:48 pm

2 stops39h 13m

$378

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 6/4

3:39 pm-8:42 am

1 stop19h 03m

San Diego

Wed 6/10

6:25 am-12:48 pm

1 stop28h 23m

$380

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 7/23

12:35 pm-11:30 pm

2 stops12h 55m

San Diego

Mon 7/27

7:58 pm-11:35 am

2 stops13h 37m

$444

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 5/29

7:51 am-1:21 pm

1 stop7h 30m

San Diego

Tue 6/2

11:55 am-6:48 am

1 stop16h 53m

$447

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 5/27

3:39 pm-11:50 pm

1 stop10h 11m

San Diego

Wed 6/10

10:04 am-12:48 pm

1 stop24h 44m

$527

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 6/12

11:22 am-11:35 pm

2 stops14h 13m

San Diego

Mon 6/15

7:13 pm-1:05 pm

2 stops15h 52m

$584

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 5/13

11:10 am-11:27 pm

1 stop14h 17m

San Diego

Tue 6/2

6:15 am-4:55 pm

1 stop8h 40m

$603

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 5/12

6:03 am-11:15 pm

2 stops19h 12m

San Diego

Sat 5/30

6:15 am-7:43 pm

2 stops11h 28m

$603
Quickest round-trip

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 5/15

3:24 pm-11:59 pm

2 stops10h 35m

San Diego

Sun 5/17

10:40 pm-11:45 am

1 stop11h 05m

$609
Cheapest one-way

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 5/24

3:39 pm-8:42 am

1 stop19h 03m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 20 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 May.
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?

    Frontier, Delta, and United Airlines can get you from Cancún to San Diego in just under 7h 30m. Your travel time can differ by up to 5h 25m. 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 American Airlines, with prices starting from $247 and $257, 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
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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