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Cheap flights from San Francisco to Cancún from $245

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Cancún

Enter your travel dates to find the best prices.

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 5 December 2025.

Thu 25/1220:44SFO - CUN
1 stop15h 50mJetBlue
Tue 30/1213:40CUN - SFO
1 stop12h 08mJetBlue
Deal found 3/12$631
Tue 30/1208:20SFO - CUN
Nonstop5h 29mAlaska Airlines
Wed 31/1217:59CUN - SFO
Nonstop6h 16mAlaska Airlines
Deal found 3/12$674
Mon 29/1208:20SFO - CUN
Nonstop5h 29mAlaska Airlines
Tue 30/1209:00CUN - SFO
1 stop28h 34mAlaska Airlines
Deal found 4/12$684
Wed 31/1210:43SFO - CUN
Nonstop5h 12mUnited Airlines
Wed 7/117:55CUN - SFO
1 stop9h 04mUnited Airlines
Deal found 3/12$685
Tue 30/1200:10SFO - CUN
1 stop9h 00mDelta
Wed 7/116:25CUN - SFO
1 stop10h 22mDelta
Deal found 4/12$693
Wed 31/1223:59SFO - CUN
1 stop14h 24mJetBlue
Thu 8/111:55CUN - SFO
1 stop15h 13mJetBlue
Deal found 4/12$694
Mon 15/1200:43SFO - CUN
1 stop7h 42mUnited Airlines
Wed 24/1217:50CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 3/12$700
Wed 31/1210:43SFO - CUN
Nonstop5h 12mUnited Airlines
Sun 11/116:20CUN - SFO
1 stop17h 54mUnited Airlines
Deal found 4/12$705
Wed 10/1206:00SFO - CUN
1 stop9h 00mDelta
Thu 25/1206:00CUN - SFO
2 stops13h 20mDelta
Deal found 4/12$715
Mon 29/1208:20SFO - CUN
Nonstop5h 29mAlaska Airlines
Wed 31/1217:59CUN - SFO
Nonstop6h 16mAlaska Airlines
Deal found 4/12$720
Mon 15/1221:05SFO - CUN
2 stops14h 05mDelta
Thu 25/1206:00CUN - SFO
2 stops13h 20mDelta
Deal found 5/12$721

Find 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 5 December 2025.

Round-trip from

$555

One-way from

$245

Popular in

December

Cheapest in

January

Average price

$1,149
United Airlines
  • United Airlines
  • 9/1-24/1
  • 2 total stops
  • 16h 46m total
  • San Francisco to Cancún
Search Deals
United Airlines
  • United Airlines
  • 29/12
  • Nonstop
  • 5h 12m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 5 December 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

Fri 9/1

22:54-16:10

1 stop14h 16m

Cancun

Sat 17/1

19:05-07:57

1 stop15h 52m

$555

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 6/1

22:54-12:33

1 stop10h 39m

Cancun

Tue 13/1

12:24-22:55

2 stops13h 31m

$557

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 27/2

21:30-13:00

2 stops12h 30m

Cancun

Tue 3/3

12:05-23:14

2 stops14h 09m

$560

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 24/1

18:55-11:15

2 stops13h 20m

Cancun

Tue 27/1

12:05-23:56

2 stops14h 51m

$563

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

23:01-07:13

Nonstop5h 12m

Cancun

Wed 14/1

17:50-20:53

Nonstop6h 03m

$579

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 31/12

00:10-12:10

1 stop9h 00m

Cancun

Fri 16/1

07:00-15:08

2 stops11h 08m

$581

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 17/1

18:45-11:24

2 stops13h 39m

Cancun

Sat 24/1

11:15-19:59

1 stop11h 44m

$593

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 23/1

23:05-13:00

2 stops10h 55m

Cancun

Thu 29/1

11:15-19:59

1 stop11h 44m

$593

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

06:30-20:02

1 stop10h 32m

Cancun

Wed 14/1

07:00-15:08

2 stops11h 08m

$594

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 26/1

14:58-14:50

2 stops20h 52m

Cancun

Sat 31/1

18:15-07:38

1 stop16h 23m

$596

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 19 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 28 November 2025.

Booking 76 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, May is the cheapest month in which you can book a flight from San Francisco to Cancún (average of $245). Flying from San Francisco to Cancún in December is currently the most expensive (average of $532). 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 5 December 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?

    This flight path from San Francisco to Cancun was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as $555, United Airlines can have you in Cancún from San Francisco in 7h 42m. 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.

  • What are the most reliable airlines from San Francisco to Cancún?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Cancún on time: United Airlines (89%), American Airlines (85%), Alaska Airlines (85%).

  • 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, May is the cheapest month in which you can book a flight from San Francisco to Cancún (average of $245). Flying from San Francisco to Cancún in December is currently the most expensive (average of $532). 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

Browse thousands of different options on Cheapflights for your next trip

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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.
Los Angeles to Cancún flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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