HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cancún

$152+ Cheap flights from San Diego (SAN) to Cancún (CUN)

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — CUN
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Cancún 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 San Diego to Cancún

Cheapest flights from San Diego to Cancún
Explore the most affordable flight options available from San Diego to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

This United Airlines deal was found by Cheapflights users on 12/30. 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.
Wed 12/316:15 amSAN - CUN
1 stop7h 31mUnited Airlines
Wed 1/74:51 pmCUN - SAN
1 stop8h 05mUnited Airlines
Deal found 12/30$566
This Delta deal was found by Cheapflights users on 12/30. 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.
Wed 12/316:20 amSAN - CUN
2 stops15h 09mDelta
Wed 1/712:05 pmCUN - SAN
2 stops13h 42mDelta
Deal found 12/30$570
This Delta deal was found by Cheapflights users on 12/29. 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 12/309:45 pmSAN - CUN
1 stop10h 30mDelta
Mon 1/55:05 pmCUN - SAN
1 stop8h 42mDelta
Deal found 12/29$585
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/305:40 pmSAN - CUN
2 stops19h 10mUnited Airlines
Mon 1/51:37 pmCUN - SAN
1 stop11h 55mUnited Airlines
Deal found 12/29$721
This deal was found by Cheapflights users on 12/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:45 pmSAN - CUN
1 stop7h 44mUnited Airlines
Wed 1/712:28 pmCUN - SAN
1 stop9h 08mUnited Airlines
Deal found 12/29$790
This Southwest deal was found by Cheapflights users on 12/30. 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.
Tue 12/307:20 amSAN - CUN
1 stop6h 15mSouthwest
Fri 1/22:10 pmCUN - SAN
2 stops12h 15mSouthwest
Deal found 12/30$833
This Southwest deal was found by Cheapflights users on 12/29. 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.
Wed 12/316:50 amSAN - CUN
1 stop10h 35mSouthwest
Sun 1/48:40 amCUN - SAN
1 stop7h 30mSouthwest
Deal found 12/29$883
This Delta deal was found by Cheapflights users on 12/31. 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.
Wed 12/316:20 amSAN - CUN
2 stops15h 09mDelta
Sun 1/44:30 pmCUN - SAN
1 stop10h 25mDelta
Deal found 12/31$890
This Kiwi.com deal was found by Cheapflights users on 12/29. 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.
Wed 12/319:10 amSAN - CUN
2 stops8h 50mMultiple Airlines
Sun 1/410:08 amCUN - SAN
2 stops49h 37mMultiple Airlines
Deal found 12/29$928

Find flight deals from San Diego to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Cancún (CUN). 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 January 1, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$304
(Kiwi.com)

One-way from

$152
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$490
Provider with most accurate pricing for San Diego-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Cancun flights.
Search Deals
From San Diego to Cancun
Search Deals
One-way flight from San Diego to Cancun
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Cancún 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 January 1, 2026.
Use the filters below to find and compare flights from San Diego to Cancún that are best for you.

Fly from

San Diego

Fly to

Cancún

Route

Depart

Return

Price

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Fri 2/13

8:18 pm-12:08 pm

2 stops12h 50m

Cancun

Fri 2/20

11:40 am-12:08 am

2 stops15h 28m

$384

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Wed 1/28

6:15 am-5:20 pm

1 stop8h 05m

Cancun

Wed 2/4

5:50 pm-12:15 am

1 stop9h 25m

$421

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Sun 1/25

10:30 pm-3:30 pm

1 stop14h 00m

Cancun

Wed 1/28

11:18 am-10:45 pm

2 stops14h 27m

$421

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Wed 1/21

10:30 pm-3:30 pm

1 stop14h 00m

Cancun

Wed 1/28

12:35 pm-11:48 pm

2 stops14h 13m

$421

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Sat 2/14

12:23 pm-10:38 am

2 stops19h 15m

Cancun

Mon 2/16

12:24 pm-12:08 am

1 stop14h 44m

$424

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Sun 2/8

10:30 pm-4:35 pm

1 stop15h 05m

Cancun

Fri 2/20

7:00 am-2:31 pm

2 stops10h 31m

$424

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Sat 2/7

10:30 pm-4:35 pm

1 stop15h 05m

Cancun

Thu 2/26

5:05 pm-11:46 pm

1 stop9h 41m

$424

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Mon 2/9

7:55 pm-2:00 pm

2 stops15h 05m

Cancun

Wed 2/18

12:05 pm-11:04 pm

2 stops13h 59m

$426

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Sun 2/8

2:05 pm-2:50 pm

2 stops21h 45m

Cancun

Tue 2/24

6:15 pm-9:49 am

2 stops18h 34m

$440

San DiegoCancún

SAN - CUN

SANCUN

San Diego

Tue 2/3

12:15 pm-2:50 pm

2 stops23h 35m

Cancun

Sat 2/7

6:15 pm-11:51 am

2 stops20h 36m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 19 results
1
2

Compare providers for flights from San Diego to Cancún

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 San Diego to Cancún in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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 San Diego-Cancún flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on San Diego-Cancún flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from San Diego-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Cancún flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 San Diego-Cancún 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 San Diego to Cancún

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

How far ahead should I book a flight from San Diego to Cancún?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Cancún. Price data was last updated on December 26, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Cancún, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from San Diego to Cancún (average of $233). Flying from San Diego to Cancún in December is currently the most expensive (average of $365). 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 Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated January 1, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from San Diego to Cancún. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,021 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,132 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,074 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,069 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Cancún. 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 San Diego to Cancún?

    For as low as $421, Frontier can have you in Cancún from San Diego in 8h 05m. San Diego and Cancún are separated by a distance of 2025 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from San Diego to Cancún is Spirit Airlines. Our recent data shows that you can find tickets from as low as $179 on this airline. Additional options worth looking into are Frontier and Aeromexico, starting at $192 and $199 round-trip. You may be able to fly from San Diego to Cancún for 67% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $137. Delta flights start at $164 while deals on United Airlines start at $164 one-way.

  • Where are the most common layover locations when flying from San Diego to Cancún?

    Most of the time, San Diego to Cancún flights that have layovers will stop in Dallas.

  • What are some popular things to do or see while on a layover in Dallas?

    Dallas travelers tend to visit American Airlines Center, Dallas World Aquarium, and Reunion Tower more than anywhere else. Travelers on a layover in Dallas can visit American Airlines Center, Dallas World Aquarium, and Reunion Tower, by traveling 15.0 mi, 15.5 mi, and 15.6 mi, respectively after landing at Dallas/Fort Worth. Those on a layover in Dallas in need of a rental car can book one at Dallas/Fort Worth for about $50.

  • Where are the least popular layover locations for San Diego to Cancún flights?

    The least popular layover on flights from San Diego to Cancún is Houston.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from San Diego to Cancún (average of $233). Flying from San Diego to Cancún in December is currently the most expensive (average of $365). 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
Puerto Aventuras
Holbox
Punta Sam

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.

Alternative routes for San Diego to Cancún

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Cancún flights
San Francisco to Cancún flights
Los Angeles to Cozumel flights
Ontario to Cancún flights
San Francisco to Cozumel flights
Tijuana to Cancún flights
Las Vegas to Cancún flights
Ontario to Cozumel flights
Sacramento to Cancún flights
Oakland to Cancún flights
Las Vegas to Cozumel flights
Burbank to Cancún flights
San Jose to Cancún flights
Sacramento to Cozumel flights
Santa Ana to Cancún flights
Reno to Cancún flights
San Diego to Cozumel flights
San Jose to Cozumel flights
Fresno to Cancún flights
Medford to Cancún flights
San Luis Obispo to Cancún flights
Reno to Cozumel flights
Santa Ana to Cozumel flights
Long Beach to Cancún flights
Oakland to Cozumel flights
Santa Barbara to Cancún flights
Arcata to Cancún flights
Santa Rosa to Cancún flights
Palm Springs to Cancún flights
Burbank to Cozumel flights
Monterey to Cancún flights
Los Angeles to Chetumal flights
Mexicali to Cancún flights
Santa Rosa to Cozumel flights
Long Beach to Cozumel flights
Yuma to Cancún flights
San Francisco to Chetumal flights
Oakland to Chetumal flights
Merced to Cancún flights
Fresno to Chetumal flights

Top 7 airlines flying from San Diego to Cancún

Discover the top 7 airlines that operate flights from San Diego to Cancún. 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 January 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$203Average$468FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$274Average$418FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$279Average$338FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$351Average$526FlexibilityNo cancel feeOn-time69%
DeltaCheapest$368Average$518FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$368Average$544FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$400Average$602FlexibilityNo cancel feeOn-time63%

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.