HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$158+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SAN
Jul 20 — Jul 271
Sun 7/20
Sun 7/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Cancún to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 15, 2025.

Round-trip from

$256
(United Airlines)

One-way from

$158
(FlightHub)

Popular in

January

Cheapest in

August

Average price

$396
From Cancun to San Diego
Search Deals
One-way flight from Cancun to San Diego
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($269 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 15, 2025.

This United Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/267:51 amCUN - SAN
2 stops14h 34mUnited Airlines
Tue 9/27:21 pmSAN - CUN
2 stops15h 12mUnited Airlines
Deal found 7/14$256
This Gotogate deal was found by Cheapflights users on 7/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:41 amCUN - SAN
2 stops25h 14mSpirit Airlines
Fri 8/85:13 pmSAN - CUN
2 stops14h 33mSpirit Airlines
Deal found 7/14$351
This Frontier deal was found by Cheapflights users on 7/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/195:06 pmCUN - SAN
1 stop7h 48mFrontier
Tue 7/226:25 amSAN - CUN
1 stop7h 55mFrontier
Deal found 7/14$382
This Delta deal was found by Cheapflights users on 7/14. 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.
Mon 7/212:10 pmCUN - SAN
1 stop10h 28mDelta
Thu 7/2410:15 pmSAN - CUN
1 stop12h 45mDelta
Deal found 7/14$411
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:55 pmCUN - SAN
2 stops20h 12mAlaska Airlines
Fri 10/3110:25 amSAN - CUN
2 stops26h 25mAlaska Airlines
Deal found 7/13$514
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:00 pmCUN - SAN
1 stop7h 45mAmerican Airlines
Wed 12/247:14 amSAN - CUN
1 stop7h 56mAmerican Airlines
Deal found 7/14$571
This Flightnetwork deal was found by Cheapflights users on 7/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2012:26 pmCUN - SAN
2 stops23h 29mMultiple Airlines
Wed 7/236:25 amSAN - CUN
1 stop7h 55mMultiple Airlines
Deal found 7/14$573

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 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

Tue 8/26

7:51 am-8:25 pm

2 stops14h 34m

San Diego

Tue 9/2

7:21 pm-12:33 pm

2 stops15h 12m

$256

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 8/1

10:41 am-9:55 am

2 stops25h 14m

San Diego

Fri 8/8

5:13 pm-9:46 am

2 stops14h 33m

$351

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 10/26

11:24 am-11:45 pm

2 stops14h 21m

San Diego

Fri 10/31

6:15 am-4:56 pm

1 stop8h 41m

$416

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 10/26

7:55 pm-2:07 pm

2 stops20h 12m

San Diego

Fri 10/31

10:25 am-2:50 pm

2 stops26h 25m

$514

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 12/21

7:00 pm-11:45 pm

1 stop7h 45m

San Diego

Wed 12/24

7:14 am-6:10 pm

1 stop7h 56m

$571

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 12/18

4:58 pm-12:01 am

1 stop10h 03m

San Diego

Sun 12/21

6:25 am-5:14 pm

1 stop7h 49m

$617

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 12/19

1:15 am-10:35 pm

2 stops24h 20m

San Diego

Tue 12/23

1:05 pm-2:20 pm

2 stops22h 15m

$2,759

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 8/5

10:41 am-9:55 am

2 stops25h 14m

$158

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 8/5

5:35 am-6:11 pm

1 stop14h 36m

$166

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 7/30

11:00 am-5:56 pm

1 stop8h 56m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Showing 1-10 of 16 results
1
2

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 July 15, 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

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
4,243 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
7,956 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
1,808 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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 ($256), Spirit Airlines ($351), and Delta ($416) offers the cheapest pricing from Cancún to San Diego. You may be able to fly from Cancún to San Diego for 48% less than the average price by searching for these airlines.

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

    $158 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $166 and $169, 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 San Diego?

Book flights to San Diego 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$307Average$468FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.