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Cheap flights from Cancún to San Diego from $166

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cancún to San Diego departing on 12/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Cancún to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:36 pm - 10:32 pmCUN-SAN
12h 56m1 stop
United Airlines Logo
8:37 pm - 7:29 amSAN-CUN
7h 52m1 stop
$313United Airlines
Find Deal
Thu, Dec 18 - Tue, Jan 6
Delta Logo
6:15 am - 6:20 pmCUN-SAN
15h 05m2 stops
Delta Logo
6:35 am - 6:00 pmSAN-CUN
8h 25m1 stop
$343Delta
Find Deal
Sun, Nov 23 - Sun, Nov 30
United Airlines Logo
12:36 pm - 10:32 pmCUN-SAN
12h 56m1 stop
United Airlines Logo
10:30 pm - 1:34 pmSAN-CUN
12h 04m2 stops
$345United Airlines
Find Deal
Fri, Dec 19 - Mon, Jan 5
Multiple Airlines Logo
4:58 pm - 11:59 pmCUN-SAN
10h 01m1 stop
Multiple Airlines Logo
1:33 pm - 12:59 pmSAN-CUN
20h 26m2 stops
$357Multiple Airlines
Find Deal
Thu, Dec 18 - Tue, Jan 6
Frontier Logo
4:58 pm - 11:59 pmCUN-SAN
10h 01m1 stop
Frontier Logo
1:18 pm - 3:53 pmSAN-CUN
23h 35m1 stop
$360Frontier
Find Deal
Fri, Dec 19 - Tue, Jan 6
Frontier Logo
4:58 pm - 11:59 pmCUN-SAN
10h 01m1 stop
Frontier Logo
7:15 am - 3:53 pmSAN-CUN
29h 38m1 stop
$369Frontier
Find Deal
Tue, Dec 23 - Tue, Jan 6
British Airways Logo
3:32 pm - 9:52 pmCUN-SAN
9h 20m1 stop
British Airways Logo
6:30 am - 3:31 pmSAN-CUN
6h 01m1 stop
$384British Airways
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Sun, Nov 23 - Sun, Nov 30
Multiple Airlines Logo
12:31 pm - 8:07 pmCUN-SAN
34h 36m2 stops
Multiple Airlines Logo
6:25 am - 1:09 pmSAN-CUN
27h 44m1 stop
$385Multiple Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 14
Aeromexico Logo
7:00 am - 3:22 pmCUN-SAN
10h 22m2 stops
Aeromexico Logo
10:40 pm - 9:00 amSAN-CUN
8h 20m1 stop
$429Aeromexico
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Tue, Mar 10 - Wed, Mar 11
Aeromexico Logo
11:10 am - 6:53 pmCUN-SAN
9h 43m1 stop
Aeromexico Logo
10:40 pm - 9:00 amSAN-CUN
8h 20m1 stop
$431Aeromexico
Find Deal
Tue, Mar 10 - Wed, Mar 11

United Airlines flights from Cancún to San Diego

Our best United Airlines deals on Cancún to San Diego flight tickets
United Airlines
Dec 18
CUN12:36 pmCancun
12h 56m
1 stop
SAN10:32 pmSan Diego
Jan 6
SAN8:37 pmSan Diego
7h 52m
1 stop
CUN7:29 amCancun
$313
Find similar
United Airlines
Dec 19
CUN12:36 pmCancun
12h 56m
1 stop
SAN10:32 pmSan Diego
Jan 5
SAN10:30 pmSan Diego
12h 04m
2 stops
CUN1:34 pmCancun
$345
Find similar
United Airlines
Dec 21
CUN6:30 pmCancun
8h 07m
1 stop
SAN11:37 pmSan Diego
Dec 28
SAN11:12 amSan Diego
17h 17m
1 stop
CUN7:29 amCancun
$433
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Frontier flights from Cancún to San Diego

Our best Frontier deals on Cancún to San Diego flight tickets
Frontier
Dec 19
CUN4:58 pmCancun
10h 01m
1 stop
SAN11:59 pmSan Diego
Jan 6
SAN1:18 pmSan Diego
23h 35m
1 stop
CUN3:53 pmCancun
$360
Find similar
Frontier
Dec 23
CUN4:58 pmCancun
10h 01m
1 stop
SAN11:59 pmSan Diego
Jan 6
SAN7:15 amSan Diego
29h 38m
1 stop
CUN3:53 pmCancun
$369
Find similar
Frontier
Dec 23
CUN4:58 pmCancun
10h 01m
1 stop
SAN11:59 pmSan Diego
Jan 6
SAN7:15 amSan Diego
29h 38m
1 stop
CUN3:53 pmCancun
$396
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
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

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 12/18

12:36 pm-10:32 pm

1 stop12h 56m

San Diego

Tue 1/6

8:37 pm-7:29 am

1 stop7h 52m

$313

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 11/23

6:15 am-6:20 pm

2 stops15h 05m

San Diego

Sun 11/30

6:35 am-6:00 pm

1 stop8h 25m

$343

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 12/19

12:36 pm-10:32 pm

1 stop12h 56m

San Diego

Mon 1/5

10:30 pm-1:34 pm

2 stops12h 04m

$345

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 12/18

4:58 pm-11:59 pm

1 stop10h 01m

San Diego

Tue 1/6

1:33 pm-12:59 pm

2 stops20h 26m

$357

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 12/19

4:58 pm-11:59 pm

1 stop10h 01m

San Diego

Tue 1/6

1:18 pm-3:53 pm

1 stop23h 35m

$360

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 12/23

4:58 pm-11:59 pm

1 stop10h 01m

San Diego

Tue 1/6

7:15 am-3:53 pm

1 stop29h 38m

$369

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Sun 11/23

3:32 pm-9:52 pm

1 stop9h 20m

San Diego

Sun 11/30

6:30 am-3:31 pm

1 stop6h 01m

$384

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 12/5

12:31 pm-8:07 pm

2 stops34h 36m

San Diego

Sun 12/14

6:25 am-1:09 pm

1 stop27h 44m

$385

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 3/10

7:00 am-3:22 pm

2 stops10h 22m

San Diego

Wed 3/11

10:40 pm-9:00 am

1 stop8h 20m

$429

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Tue 3/10

11:10 am-6:53 pm

1 stop9h 43m

San Diego

Wed 3/11

10:40 pm-9:00 am

1 stop8h 20m

$431

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Cancún to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Cancún to San Diego is on a Friday. Travelers who choose to depart for San Diego on a Friday will often find tickets for as low as $401. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $453. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

How have Cancún to San Diego flight prices changed over time?

As of November 2025, prices for Cancún to San Diego flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Cancún to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Cancún to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Cancún to San Diego (CUN to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cancún to San Diego

Direct flights

None
There are no direct flights from Cancún to San Diego. There are no popular flight routes from Cancún to San Diego.
Search flight deals

  • How far is Cancun to San Diego by plane?

    The distance between Cancun and San Diego is about 2020.9 mi. 8h 07m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Cancun Airport to San Diego Airport?

    Prices for flights from Cancun Airport to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Cancun Airport to San Diego Airport?

  • How old do you have to be to fly from Cancun Airport to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cancun Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Cancún to San Diego?

Best airlines flying from Cancún to San Diego

Compare and see reviews for airlines that fly from Cancún to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $255Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
La Mesa
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Cancún to San Diego?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cancún to San Diego for you.

Can I find flights from Cancún to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Cancún with this policy.

How can momondo help me find flights from Cancún to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Cancún. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Cancún to San Diego right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Cancún to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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