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Cheap flights from San Francisco to Cancún from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Cancún departing on 3/17. 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 San Francisco to Cancún

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
2:56 pm - 2:50 pm
SFO
-
CUN
20h 54m1 stop
Alaska Airlines Logo
6:15 pm - 11:13 am
CUN
-
SFO
19h 58m1 stop
$360Alaska Airlines
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
7:00 am - 10:42 am
SFO
-
CUN
24h 42m2 stops
Frontier Logo
2:57 pm - 12:38 pm
CUN
-
SFO
24h 41m2 stops
$361Frontier
Tue, Jan 27 - Mon, Feb 2
Delta Logo
11:35 pm - 8:02 pm
SFO
-
CUN
18h 27m1 stop
Delta Logo
4:17 pm - 9:50 am
CUN
-
SFO
19h 33m1 stop
$362Delta
Sun, Mar 8 - Fri, Mar 13
Frontier Logo
8:18 pm - 6:09 pm
SFO
-
CUN
18h 51m2 stops
Frontier Logo
10:01 am - 9:55 pm
CUN
-
SFO
14h 54m1 stop
$363Frontier
Mon, Feb 16 - Sat, Feb 21
Frontier Logo
6:55 am - 6:09 pm
SFO
-
CUN
8h 14m1 stop
Frontier Logo
11:40 am - 12:28 am
CUN
-
SFO
15h 48m2 stops
$364Frontier
Tue, Feb 17 - Fri, Feb 20
Frontier Logo
6:15 am - 3:52 pm
SFO
-
CUN
7h 37m1 stop
Frontier Logo
3:58 pm - 9:16 am
CUN
-
SFO
19h 18m2 stops
$365Frontier
Thu, Apr 2 - Wed, Apr 8
Delta Logo
6:00 am - 5:00 pm
SFO
-
CUN
9h 00m1 stop
Delta Logo
4:17 pm - 9:50 am
CUN
-
SFO
19h 33m1 stop
$366Delta
Wed, Mar 11 - Fri, Mar 13
Alaska Airlines Logo
6:43 pm - 2:50 pm
SFO
-
CUN
17h 07m1 stop
Alaska Airlines Logo
5:55 pm - 9:12 pm
CUN
-
SFO
6h 17mnonstop
$367Alaska Airlines
Sun, Mar 1 - Sat, Mar 7
Frontier Logo
10:03 pm - 3:52 pm
SFO
-
CUN
15h 49m2 stops
Frontier Logo
3:58 pm - 7:48 am
CUN
-
SFO
17h 50m2 stops
$368Frontier
Mon, Apr 6 - Sun, Apr 12
Frontier Logo
8:34 pm - 5:17 pm
SFO
-
CUN
17h 43m2 stops
Frontier Logo
10:01 am - 9:39 pm
CUN
-
SFO
14h 38m1 stop
$369Frontier
Sun, Feb 22 - Sun, Mar 1

United Airlines flights from San Francisco to Cancún

Our best United Airlines deals on San Francisco to Cancún flight tickets
United Airlines
Feb 16
SFO11:01 pmSan Francisco
5h 12m
CUN7:13 amCancun
Feb 19
CUN4:51 pmCancun
10h 08m
1 stop
SFO11:59 pmSan Francisco
$381
United Airlines
Feb 19
SFO11:59 pmSan Francisco
8h 26m
1 stop
CUN11:25 amCancun
Feb 24
CUN5:50 pmCancun
6h 03m
SFO8:53 pmSan Francisco
$406
United Airlines
Jan 19
SFO8:59 amSan Francisco
5h 21m
CUN5:20 pmCancun
Feb 26
CUN1:35 pmCancun
6h 03m
SFO4:38 pmSan Francisco
$446

Aeromexico flights from San Francisco to Cancún

Our best Aeromexico deals on San Francisco to Cancún flight tickets
Aeromexico
Feb 14
SFO10:36 pmSan Francisco
17h 11m
1 stop
CUN6:47 pmCancun
Feb 17
CUN4:20 pmCancun
20h 37m
2 stops
SFO9:57 amSan Francisco
$390
Aeromexico
Feb 15
SFO11:27 amSan Francisco
11h 01m
2 stops
CUN1:28 amCancun
Feb 20
CUN8:38 amCancun
18h 16m
2 stops
SFO11:54 pmSan Francisco
$401

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco 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, momondo users made 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from San Francisco to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 2/5

2:56 pm-2:50 pm

1 stop20h 54m

Cancun

Mon 2/9

6:15 pm-11:13 am

1 stop19h 58m

$360

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 1/27

7:00 am-10:42 am

2 stops24h 42m

Cancun

Mon 2/2

2:57 pm-12:38 pm

2 stops24h 41m

$361

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 3/8

11:35 pm-8:02 pm

1 stop18h 27m

Cancun

Fri 3/13

4:17 pm-9:50 am

1 stop19h 33m

$362

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 2/16

8:18 pm-6:09 pm

2 stops18h 51m

Cancun

Sat 2/21

10:01 am-9:55 pm

1 stop14h 54m

$363

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 2/17

6:55 am-6:09 pm

1 stop8h 14m

Cancun

Fri 2/20

11:40 am-12:28 am

2 stops15h 48m

$364

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 4/2

6:15 am-3:52 pm

1 stop7h 37m

Cancun

Wed 4/8

3:58 pm-9:16 am

2 stops19h 18m

$365

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 3/11

6:00 am-5:00 pm

1 stop9h 00m

Cancun

Fri 3/13

4:17 pm-9:50 am

1 stop19h 33m

$366

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 3/1

6:43 pm-2:50 pm

1 stop17h 07m

Cancun

Sat 3/7

5:55 pm-9:12 pm

Nonstop6h 17m

$367

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 4/6

10:03 pm-3:52 pm

2 stops15h 49m

Cancun

Sun 4/12

3:58 pm-7:48 am

2 stops17h 50m

$368

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 2/22

8:34 pm-5:17 pm

2 stops17h 43m

Cancun

Sun 3/1

10:01 am-9:39 pm

1 stop14h 38m

$369

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 Cancún from

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

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 month to fly to Cancún?

If you don’t want to visit Cancún in January, then you should wait until February to fly from San Francisco, when ticket prices are also cheap, with an average price of $577.

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from San Francisco to Cancún is on a Tuesday when prices can be found for as low as $643. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $690. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is in the evening. Flights from San Francisco to Cancún during this time can be as low as $657. Flights to Cancún are more costly in the morning, with an average ticket price of $662. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Francisco to Cancun flight route?

Fly from San Francisco to Cancun for the best San Francisco - Cancun flight prices

How far in advance should I book a flight to Cancún?

You are more likely to see cheaper flights to Cancún from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $630 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from San Francisco for as low as $571 on momondo.

What cabin class options are available on San Francisco to Cancun flights?

There are 4 cabin classes available to choose from on San Francisco to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Cancún flights?

You could potentially save up to 5% on your flight if you consider stops on a San Francisco to Cancún flight.

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

As of January 2026, prices for San Francisco to Cancún flights are approximately 4% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Cancún

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

Cheap San Francisco to Cancún (SFO to CUN) flight deals and tips

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

Best Price Found

$233

Fastest flight time

5h 12m

Direct flights

Every day

Airports in Cancún

1 airport
The best one-way flight to Cancún from San Francisco in the past 72 hours is $233. The best round-trip flight deal from San Francisco to Cancún found on momondo in the last 72 hours is $483.
The fastest flight from San Francisco to Cancún takes 5h 12m
Direct flights go from San Francisco to Cancún every day.
There is 1 airport in Cancún. From San Francisco there are direct flights to Cancun (CUN).
Search flight deals

  • How far is San Francisco to Cancun by plane?

    The straight-line distance from San Francisco to Cancun is 2407.1 mi. Flights usually cover this in 5h 12m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Francisco Airport to Cancun Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Cancun Airport.

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

    The travel and health documents required for your trip to Cancun Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cancun Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Cancún?

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

Best airlines flying from San Francisco to Cancún

Compare and see reviews for airlines that fly from San Francisco to Cancún with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $209Free CancellationRating
5.7
3,061 reviews
Search Frontier flights
VivaPriceFrom $225Free CancellationRating
7.0
811 reviews
Search Viva flights
DeltaPriceFrom $239Free CancellationRating
7.9
8,031 reviews
Search Delta flights
VolarisPriceFrom $266Free CancellationRating
6.6
1,169 reviews
Search Volaris flights
Hawaiian AirlinesPriceFrom $269Free CancellationRating
7.8
2,824 reviews
Search Hawaiian Airlines flights
AeromexicoPriceFrom $313Free CancellationRating
7.4
1,606 reviews
Search Aeromexico flights
Alaska AirlinesPriceFrom $355Free CancellationRating
8.0
11,671 reviews
Search Alaska Airlines flights
JetBluePriceFrom $367Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
United AirlinesPriceFrom $375Free CancellationRating
7.4
9,143 reviews
Search United Airlines flights
Air CanadaPriceFrom $418Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights

  • United Airlines Flights From San Francisco to Cancún

    Across 14 United Airlines flights from San Francisco to Cancún this week, the average price was $658, with the best United Airlines deals starting from $375 round-trip. 9,139 users have rated United Airlines on momondo, with an average score of 7.4/10.

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Playa del Carmen
Isla Mujeres
Holbox
Puerto Morelos
Akumal
Puerto Aventuras
Valladolid
Punta Sam

Why use momondo?

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

It is quick and easy to find San Francisco to Cancún flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cancún that suits you.

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

Yes. momondo allows you to filter the results for San Francisco to Cancún flights to just show those with flexible booking policies.

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

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

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

Yes momondo offers price alerts on flights to Cancún from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Cancún trip

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