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.
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 |
Find flight deals from San Francisco to Cancún
Cheapest flights from San Francisco to CancúnExplore 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.
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.
Cheapflights Fare Finder
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
Sat 6/12
21:16-15:23
1 stop15h 07m
Cancun
Fri 12/12
14:40-23:24
1 stop11h 44m
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
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
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
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
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
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
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
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
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
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.
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?
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?
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.
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Alternative routes for San Francisco to Cancún
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How does Cheapflights help users find flights from San Francisco to Cancún?
When you search for this flight from San Francisco to Cancún, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Cancún?
Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Cancún for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
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.