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Cheap flights from Cancún to San Diego from $245

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 5/23. 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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0 bags

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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.
Multiple Airlines Logo
3:39 pm - 12:33 pm
CUN
-
SAN
22h 54m
1 stop
Multiple Airlines Logo
9:43 am - 10:03 am
SAN
-
CUN
22h 20m
2 stops
$328Multiple Airlines
Mon, Jun 8 - Tue, Jun 16
Frontier Logo
3:35 pm - 11:53 pm
CUN
-
SAN
10h 18m
1 stop
Frontier Logo
10:04 am - 12:49 pm
SAN
-
CUN
24h 45m
1 stop
$350Frontier
Wed, Jul 1 - Wed, Jul 8
Frontier Logo
3:35 pm - 11:53 pm
CUN
-
SAN
10h 18m
1 stop
Frontier Logo
9:53 pm - 12:49 pm
SAN
-
CUN
12h 56m
2 stops
$378Frontier
Wed, Jul 1 - Wed, Jul 8
Multiple Airlines Logo
3:35 pm - 8:42 am
CUN
-
SAN
19h 07m
1 stop
Multiple Airlines Logo
9:43 am - 10:03 am
SAN
-
CUN
22h 20m
2 stops
$382Multiple Airlines
Fri, Jun 12 - Tue, Jun 16
Frontier Logo
3:39 pm - 12:33 pm
CUN
-
SAN
22h 54m
1 stop
Frontier Logo
10:04 am - 12:48 pm
SAN
-
CUN
24h 44m
1 stop
$385Frontier
Mon, Jun 8 - Tue, Jun 16
United Airlines Logo
3:43 pm - 10:25 pm
CUN
-
SAN
8h 42m
1 stop
United Airlines Logo
6:55 pm - 12:58 pm
SAN
-
CUN
16h 03m
1 stop
$443United Airlines
Fri, Jun 12 - Tue, Jun 16
United Airlines Logo
3:43 pm - 10:25 pm
CUN
-
SAN
8h 42m
1 stop
United Airlines Logo
6:55 pm - 12:02 pm
SAN
-
CUN
15h 07m
2 stops
$444United Airlines
Thu, Jun 4 - Mon, Jun 8
Frontier Logo
3:35 pm - 8:42 am
CUN
-
SAN
19h 07m
1 stop
Frontier Logo
10:04 am - 12:48 pm
SAN
-
CUN
24h 44m
1 stop
$446Frontier
Fri, Jun 12 - Tue, Jun 16
Delta Logo
2:01 pm - 10:01 pm
CUN
-
SAN
10h 00m
1 stop
Delta Logo
7:13 pm - 1:01 pm
SAN
-
CUN
15h 48m
2 stops
$451Delta
Thu, Jul 16 - Wed, Jul 29
United Airlines Logo
3:43 pm - 10:25 pm
CUN
-
SAN
8h 42m
1 stop
United Airlines Logo
6:15 am - 7:19 pm
SAN
-
CUN
11h 04m
1 stop
$456United Airlines
Thu, Jun 4 - Mon, Jun 8

Frontier flights from Cancún to San Diego

Our best Frontier deals on Cancún to San Diego flight tickets
Frontier
Jul 1
CUN3:35 pmCancun
10h 18m
1 stop
SAN11:53 pmSan Diego
Jul 8
SAN10:04 amSan Diego
24h 45m
1 stop
CUN12:49 pmCancun
$350
Frontier
Jul 1
CUN3:35 pmCancun
10h 18m
1 stop
SAN11:53 pmSan Diego
Jul 8
SAN9:53 pmSan Diego
12h 56m
2 stops
CUN12:49 pmCancun
$378
Frontier
Jun 8
CUN3:39 pmCancun
22h 54m
1 stop
SAN12:33 pmSan Diego
Jun 16
SAN10:04 amSan Diego
24h 44m
1 stop
CUN12:48 pmCancun
$385

Delta flights from Cancún to San Diego

Our best Delta deals on Cancún to San Diego flight tickets
Delta
Jul 16
CUN2:01 pmCancun
10h 00m
1 stop
SAN10:01 pmSan Diego
Jul 29
SAN7:13 pmSan Diego
15h 48m
2 stops
CUN1:01 pmCancun
$451
Delta
Jun 12
CUN12:39 pmCancun
13h 17m
2 stops
SAN11:56 pmSan Diego
Jun 19
SAN7:13 pmSan Diego
14h 23m
2 stops
CUN11:36 amCancun
$508
Delta
Jul 16
CUN2:10 pmCancun
11h 40m
2 stops
SAN11:50 pmSan Diego
Jul 29
SAN7:58 pmSan Diego
15h 02m
2 stops
CUN1:00 pmCancun
$532

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 May 18, 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

Mon 6/8

3:39 pm-12:33 pm

1 stop22h 54m

San Diego

Tue 6/16

9:43 am-10:03 am

2 stops22h 20m

$328

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 7/1

3:35 pm-11:53 pm

1 stop10h 18m

San Diego

Wed 7/8

10:04 am-12:49 pm

1 stop24h 45m

$350

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Wed 7/1

3:35 pm-11:53 pm

1 stop10h 18m

San Diego

Wed 7/8

9:53 pm-12:49 pm

2 stops12h 56m

$378

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 6/12

3:35 pm-8:42 am

1 stop19h 07m

San Diego

Tue 6/16

9:43 am-10:03 am

2 stops22h 20m

$382

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Mon 6/8

3:39 pm-12:33 pm

1 stop22h 54m

San Diego

Tue 6/16

10:04 am-12:48 pm

1 stop24h 44m

$385

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 6/12

3:43 pm-10:25 pm

1 stop8h 42m

San Diego

Tue 6/16

6:55 pm-12:58 pm

1 stop16h 03m

$443

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 6/4

3:43 pm-10:25 pm

1 stop8h 42m

San Diego

Mon 6/8

6:55 pm-12:02 pm

2 stops15h 07m

$444

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Fri 6/12

3:35 pm-8:42 am

1 stop19h 07m

San Diego

Tue 6/16

10:04 am-12:48 pm

1 stop24h 44m

$446

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 7/16

2:01 pm-10:01 pm

1 stop10h 00m

San Diego

Wed 7/29

7:13 pm-1:01 pm

2 stops15h 48m

$451
Quickest round-trip

CancúnSan Diego

CUN - SAN

CUNSAN

Cancun

Thu 6/4

3:43 pm-10:25 pm

1 stop8h 42m

San Diego

Mon 6/8

6:15 am-7:19 pm

1 stop11h 04m

$456

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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

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

As of May 2026, prices for Cancún to San Diego flights are approximately 30% 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

Fastest flight time

8h 42m

Direct flights

None
The fastest flight from Cancún to San Diego takes 8h 42m
There are no direct flights from Cancún to San Diego. There are no popular flight routes from Cancún to San Diego.
Search flight deals

Frequently asked questions about flying from Cancún to San Diego

  • How far is Cancun to San Diego by plane?

    The distance between Cancun and San Diego is about 2020.9 mi. 8h 42m 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 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.

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
Poway
San Ysidro
La Mesa
Imperial Beach
Borrego Springs
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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