Cheap flights from San Francisco to Cancún from $295

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

$655

One-way from

$295

Popular in

December

Cheapest in

January

Average price

$878
United Airlines
  • United Airlines
  • 16/1-21/1
  • 1 total stop
  • 13h 45m total
  • San Francisco to Cancún
Alaska Airlines
  • Alaska Airlines
  • 11/12
  • 2 total stops
  • 20h 46m total
  • San Francisco to Cancún
Highest demand for flights based on searches. 5% potential increase in price ($82 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($32 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 15 September 2025.

Tue 14/1000:43SFO - CUN
1 stop7h 21mUnited Airlines
Wed 22/1013:04CUN - SFO
Nonstop5h 47mUnited Airlines
Deal found 15/9$655
Sat 8/1108:28SFO - CUN
Nonstop5h 17mAlaska Airlines
Wed 12/1118:15CUN - SFO
1 stop16h 19mAlaska Airlines
Deal found 14/9$663
Wed 29/1018:23SFO - CUN
2 stops22h 22mAlaska Airlines
Sat 1/1119:55CUN - SFO
1 stop14h 39mAlaska Airlines
Deal found 15/9$664
Sun 2/1120:05SFO - CUN
2 stops16h 20mSouthwest
Wed 12/1108:20CUN - SFO
2 stops12h 55mSouthwest
Deal found 13/9$666
Tue 23/905:50SFO - CUN
1 stop7h 10mAlaska Airlines
Tue 7/1016:10CUN - SFO
1 stop20h 12mAlaska Airlines
Deal found 14/9$667
Sun 28/908:45SFO - CUN
1 stop28h 15mAlaska Airlines
Mon 6/1016:10CUN - SFO
1 stop19h 06mAlaska Airlines
Deal found 14/9$669
Tue 9/1200:43SFO - CUN
1 stop12h 16mUnited Airlines
Tue 16/1206:30CUN - SFO
1 stop14h 16mUnited Airlines
Deal found 15/9$670
Sun 9/1100:43SFO - CUN
1 stop7h 42mUnited Airlines
Sat 15/1115:07CUN - SFO
1 stop8h 10mUnited Airlines
Deal found 13/9$672
Mon 29/905:50SFO - CUN
1 stop7h 10mAlaska Airlines
Tue 7/1016:10CUN - SFO
2 stops18h 38mAlaska Airlines
Deal found 15/9$673
Sat 8/1105:30SFO - CUN
1 stop11h 15mSouthwest
Wed 12/1108:20CUN - SFO
2 stops12h 55mSouthwest
Deal found 14/9$675
Sat 6/1223:01SFO - CUN
Nonstop5h 12mUnited Airlines
Tue 16/1217:50CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 14/9$678

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 647,157 searches. Data last updated 15 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

Mon 5/1

07:00-15:24

Nonstop5h 24m

Cancun

Fri 9/1

08:39-17:50

1 stop12h 11m

$663

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 28/10

08:59-16:20

Nonstop5h 21m

Cancun

Tue 4/11

06:30-12:10

1 stop8h 40m

$663

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 29/10

18:23-18:45

2 stops22h 22m

Cancun

Sat 1/11

18:15-08:34

1 stop16h 19m

$664

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 2/1

08:22-18:49

1 stop7h 27m

Cancun

Wed 7/1

17:15-08:29

1 stop18h 14m

$670

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 5/11

05:15-20:18

1 stop12h 03m

Cancun

Thu 13/11

16:51-00:12

1 stop10h 21m

$670

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 12/11

05:15-15:59

1 stop7h 44m

Cancun

Mon 17/11

06:30-19:25

1 stop15h 55m

$701

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 15/12

00:43-15:59

1 stop12h 16m

Cancun

Thu 25/12

17:00-20:03

Nonstop6h 03m

$714

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 13/12

22:19-14:50

1 stop13h 31m

Cancun

Sat 20/12

18:15-07:38

1 stop16h 23m

$716

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 14/10

08:48-16:12

Nonstop5h 24m

Cancun

Tue 21/10

13:04-16:51

Nonstop5h 47m

$717

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 11/12

18:59-18:45

2 stops20h 46m

$295

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 16 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 12 September 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 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 15 September 2025.

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.
  • How popular is this San Francisco to Cancún flight route?

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

    For as low as $663, United Airlines can have you in Cancún from San Francisco in 5h 24m. The distance from San Francisco to Cancún is about 3869 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

See more FAQs

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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?

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.

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