Cheap flights from San Francisco to Cancún from $274
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 31/1. 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 4 September 2025.
Round-trip from | $647 |
---|---|
One-way from | $274 |
Popular in | December |
Cheapest in | January |
Average price | $928 |
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 4 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 4 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
Tue 3/3
06:00-16:10
1 stop7h 10m
Cancun
Thu 5/3
17:15-08:29
1 stop18h 14m
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
Sun 18/1
22:40-13:03
1 stop11h 23m
Cancun
Fri 23/1
12:20-00:13
1 stop14h 53m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Fri 23/1
20:45-12:50
1 stop13h 05m
Cancun
Thu 29/1
13:00-00:34
1 stop14h 34m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Wed 29/10
18:23-18:45
2 stops22h 22m
Cancun
Thu 6/11
18:15-23:58
1 stop8h 43m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Wed 28/1
06:00-16:10
1 stop7h 10m
Cancun
Mon 2/2
17:15-16:08
2 stops25h 53m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Wed 29/10
15:28-18:45
1 stop25h 17m
Cancun
Sat 1/11
17:55-21:49
Nonstop5h 54m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Tue 17/2
06:00-16:10
1 stop7h 10m
Cancun
Mon 23/2
17:15-08:29
1 stop18h 14m
San FranciscoCancún
SFO - CUN
SFOCUN
San Francisco
Tue 3/3
06:00-16:10
1 stop7h 10m
Cancun
Mon 9/3
17:15-08:29
1 stop17h 14m
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 time of day to fly from SFO to CUN?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Cancún as you normally would.
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
See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from San Francisco to Cancún?
Cheapflights makes it easy to find San Francisco to Cancún flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Cancún?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Cancún.
Can Cheapflights find flights from San Francisco to Cancún with no change fees?
Yes, we can. To see specific flights from San Francisco to Cancún with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Francisco to Cancún become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Cancún from San Francisco today and book when prices fit your budget.