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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.
SFO — CUN
9 Sep — 16 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 4 September 2025.

Round-trip from

$647

One-way from

$274

Popular in

December

Cheapest in

January

Average price

$928
Alaska Airlines
  • Alaska Airlines
  • 3/3-5/3
  • 2 total stops
  • 25h 24m total
  • San Francisco to Cancún
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Hawaiian Airlines
  • Hawaiian Airlines
  • 24/2
  • 1 total stop
  • 17h 15m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($61 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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 4 September 2025.

Sat 15/1121:10SFO - CUN
1 stop15h 05mJetBlue
Sat 22/1113:00CUN - SFO
1 stop11h 47mJetBlue
Deal found 1/9$649
Wed 29/1018:23SFO - CUN
2 stops22h 22mAlaska Airlines
Thu 6/1118:15CUN - SFO
1 stop8h 43mAlaska Airlines
Deal found 2/9$652
Fri 12/923:20SFO - CUN
1 stop10h 36mJetBlue
Sun 14/913:00CUN - SFO
1 stop12h 10mJetBlue
Deal found 2/9$654
Sat 1/1115:28SFO - CUN
1 stop25h 17mAlaska Airlines
Wed 5/1118:15CUN - SFO
1 stop16h 19mAlaska Airlines
Deal found 2/9$655
Wed 29/1015:28SFO - CUN
1 stop25h 17mAlaska Airlines
Sat 1/1117:55CUN - SFO
Nonstop5h 54mAlaska Airlines
Deal found 3/9$669
Sun 12/1007:00SFO - CUN
1 stop31h 20mAlaska Airlines
Sat 1/1117:55CUN - SFO
Nonstop5h 54mAlaska Airlines
Deal found 3/9$670
Fri 5/1208:46SFO - CUN
1 stop6h 59mAlaska Airlines
Wed 10/1218:15CUN - SFO
2 stops17h 28mAlaska Airlines
Deal found 2/9$672
Sat 29/1108:27SFO - CUN
Nonstop5h 13mAlaska Airlines
Fri 5/1219:55CUN - SFO
1 stop14h 34mAlaska Airlines
Deal found 3/9$675
Wed 29/1021:44SFO - CUN
1 stop9h 26mJetBlue
Thu 6/1114:40CUN - SFO
1 stop11h 51mJetBlue
Deal found 2/9$677
Sun 12/1008:20SFO - CUN
1 stop30h 00mAlaska Airlines
Mon 3/1119:55CUN - SFO
1 stop14h 39mAlaska Airlines
Deal found 3/9$678
Sun 30/1108:27SFO - CUN
Nonstop5h 13mAlaska Airlines
Thu 11/1218:15CUN - SFO
2 stops17h 28mAlaska Airlines
Deal found 3/9$681
Wed 29/1018:23SFO - CUN
2 stops22h 22mAlaska Airlines
Tue 4/1118:15CUN - SFO
1 stop16h 19mAlaska Airlines
Deal found 2/9$683

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 4 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

Tue 3/3

06:00-16:10

1 stop7h 10m

Cancun

Thu 5/3

17:15-08:29

1 stop18h 14m

$647

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

$649

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

$649

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

$649

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

$649

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

$652

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

$666

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

$669

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

$670

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

$673

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 23 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 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 4 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?

    This flight path from San Francisco to Cancun was viewed by 3 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 $647, Alaska Airlines can have you in Cancún from San Francisco in 7h 10m. The distance from San Francisco to Cancún is about 3869 km.

  • 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

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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