Cheap flights from San Francisco to Cancún from £133

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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
8 Sep — 15 Sep1
1 adult

Cheap flight deals from San Francisco to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 3 September 2025.

Round-trip from

£316

One-way from

£133

Popular in

December

Cheapest in

January

Average price

£451
JetBlue
  • JetBlue
  • 6/12-12/12
  • 2 total stops
  • 26h 51m total
  • San Francisco to Cancún
Alaska Airlines
  • Alaska Airlines
  • 17/2
  • 1 total stop
  • 7h 10m total
  • San Francisco to Cancún
Highest demand for flights based on searches. 4% potential increase in price (£14 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from San Francisco to Cancún

Cheapest flights from San Francisco to Cancún
Explore the most affordable flight options available from San Francisco to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2025.

Sat 6/1221:16SFO - CUN
1 stop15h 07mJetBlue
Fri 12/1214:40CUN - SFO
1 stop11h 44mJetBlue
Deal found 31/8£316
Wed 29/1018:23SFO - CUN
2 stops22h 22mAlaska Airlines
Thu 6/1118:15CUN - SFO
1 stop8h 43mAlaska Airlines
Deal found 2/9£317
Fri 12/923:20SFO - CUN
1 stop10h 36mJetBlue
Sun 14/913:00CUN - SFO
1 stop12h 10mJetBlue
Deal found 2/9£318
Sat 1/1115:28SFO - CUN
1 stop25h 17mAlaska Airlines
Wed 5/1118:15CUN - SFO
1 stop8h 43mAlaska Airlines
Deal found 1/9£319
Sat 20/922:00SFO - CUN
1 stop11h 55mJetBlue
Fri 26/913:00CUN - SFO
1 stop12h 10mJetBlue
Deal found 1/9£321
Wed 29/1015:28SFO - CUN
1 stop25h 17mAlaska Airlines
Sat 1/1117:55CUN - SFO
Nonstop5h 54mAlaska Airlines
Deal found 3/9£325
Sun 12/1007:00SFO - CUN
1 stop31h 20mAlaska Airlines
Sat 1/1117:55CUN - SFO
Nonstop5h 54mAlaska Airlines
Deal found 3/9£326
Fri 5/1208:46SFO - CUN
1 stop6h 59mAlaska Airlines
Wed 10/1218:15CUN - SFO
2 stops17h 28mAlaska Airlines
Deal found 2/9£327
Wed 29/1022:09SFO - CUN
1 stop18h 36mAlaska Airlines
Mon 3/1118:15CUN - SFO
1 stop8h 43mAlaska Airlines
Deal found 2/9£329
Sun 12/1008:20SFO - CUN
1 stop30h 00mAlaska Airlines
Thu 30/1018:15CUN - SFO
1 stop17h 40mAlaska Airlines
Deal found 3/9£330
Thu 11/1211:36SFO - CUN
2 stops28h 09mAlaska Airlines
Thu 18/1209:00CUN - SFO
1 stop16h 07mAlaska Airlines
Deal found 31/8£331
Wed 29/1018:23SFO - CUN
2 stops22h 22mAlaska Airlines
Tue 4/1118:15CUN - SFO
1 stop16h 19mAlaska Airlines
Deal found 2/9£332

Cheapflights Fare Finder

 
Customise 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, Cheapflights users made 858,174 searches. Data last updated 3 September 2025.
Use the filters below to find and compare flights from San Francisco to Cancún that are best for you.

Fly from

San Francisco

Fly to

Cancún

Route

Depart

Return

Price

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 6/12

21:16-15:23

1 stop15h 07m

Cancun

Fri 12/12

14:40-23:24

1 stop11h 44m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 6/12

21:16-15:23

1 stop15h 07m

Cancun

Tue 9/12

11:30-23:24

1 stop14h 54m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 23/12

15:22-11:00

1 stop16h 38m

Cancun

Wed 31/12

12:15-00:52

1 stop15h 37m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 15/11

21:10-15:15

1 stop15h 05m

Cancun

Sat 22/11

13:00-21:47

1 stop11h 47m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

20:30-10:34

1 stop11h 04m

Cancun

Sat 17/1

11:50-00:34

1 stop15h 44m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 29/9

23:29-13:15

1 stop11h 46m

Cancun

Fri 3/10

11:20-00:59

1 stop15h 39m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 17/11

21:00-13:44

1 stop13h 44m

Cancun

Mon 24/11

16:10-23:30

1 stop10h 20m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 18/1

22:40-13:03

1 stop11h 23m

Cancun

Fri 23/1

13:00-00:34

1 stop14h 34m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 8/12

21:16-15:23

1 stop15h 07m

Cancun

Wed 10/12

11:30-23:24

1 stop14h 54m

£316

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 23/1

20:45-12:50

1 stop13h 05m

Cancun

Thu 29/1

10:40-23:33

1 stop15h 53m

£316

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 22 results
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Best time to book a flight from San Francisco to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from San Francisco with our price prediction graph.
Estimated return 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 Francisco to Cancún

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Cancún. Price data was last updated on 29 August 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Cancún. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from San Francisco to Cancún (average of £317). Flying from San Francisco to Cancún in July is currently the most expensive (average of £985). 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.

What is the cheapest time of day to fly from SFO to CUN?

Find hourly flight availability from San Francisco to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 September 2025.

It’s optimal to fly from San Francisco to Cancún in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at midday.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Cancún. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How popular is this San Francisco to Cancún flight route?

  • How long is the flight from San Francisco to Cancún?

    There are many flights that can get you from San Francisco to Cancún in 15h 07m. Fly via JetBlue to get the fastest option. San Francisco and Cancún are separated by a distance of 2404 mi.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from San Francisco to Cancún (average of £317). Flying from San Francisco to Cancún in July is currently the most expensive (average of £985). 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

Travelling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Holbox

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Why should you use Cheapflights to find cheap flight tickets from San Francisco to Cancún?

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Can Cheapflights find flights from San Francisco to Cancún with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to Cancún flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Francisco to Cancún become cheaper?

Not ready to book yet? You can track prices for flights from San Francisco to Cancún on Cheapflights with our Price Alert feature and get notified when better prices are available.

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