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Cheap Flights from San Francisco International to Cancun

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Compare San Francisco International to Cancun flight deals

Find the cheapest month or even day of the year to fly to Cancun

Book the best Cancun fare with no extra fees

Flight deals from San Francisco International to Cancun

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Cancun? Find the lowest prices on one-way and return tickets right here.
Cancun.R 2,978 per passenger.Departing Fri, 17 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Fri, 17 Oct, arriving in Cancun.Price includes taxes and charges.From R 2,978, select.
Cancun.R 2,978 per passenger.Departing Sat, 6 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 6 Sep, arriving in Cancun.Price includes taxes and charges.From R 2,978, select.
Cancun.R 2,986 per passenger.Departing Sat, 15 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 15 Nov, arriving in Cancun.Price includes taxes and charges.From R 2,986, select.
Cancun.R 2,986 per passenger.Departing Mon, 18 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Mon, 18 Aug, arriving in Cancun.Price includes taxes and charges.From R 2,986, select.
Cancun.R 3,347 per passenger.Departing Tue, 8 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 8 Jul, arriving in Cancun.Price includes taxes and charges.From R 3,347, select.
Cancun.R 3,348 per passenger.Departing Tue, 17 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 17 Jun, arriving in Cancun.Price includes taxes and charges.From R 3,348, select.
Cancun.R 3,501 per passenger.Departing Tue, 13 Jan.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from San Francisco International on Tue, 13 Jan, arriving in Cancun.Price includes taxes and charges.From R 3,501, select.
Cancun.R 3,742 per passenger.Departing Mon, 23 Mar.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from San Francisco International on Mon, 23 Mar, arriving in Cancun.Price includes taxes and charges.From R 3,742, select.

Find the cheapest month to fly from San Francisco International to Cancun

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Cancun flights are currently cheapest in September.
May
from R 4,053
Jun
from R 3,348
Jul
from R 3,347
Aug
from R 2,986
Sep
from R 2,978
Oct
from R 2,978
Nov
from R 2,986
Dec
from R 4,306
Jan
from R 3,501
Feb
from R 5,795
Mar
from R 3,742
Apr
from R 4,907

Direct flights from San Francisco International to Cancun

San Francisco International to Cancun: Alternative routes

Compare routes from San Francisco International to Cancun below. You may find an airport to fly into that's cheaper, faster, or easier than Cancun.

San Francisco to Cancun: Flight information

The things to know before you go.
Cheapest flight foundR 2,978
Cheapest month to flySeptember
Average flight time5 hrs, 19 mins
Most popular airlineUnited
Average flights per week23

Finding cheap flights from San Francisco International to Cancun: Frequently asked questions

The best price we found for a return flight from San Francisco International to Cancun is R 6,504. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 19 minutes is the average flight time from San Francisco International to Cancun.
United, Hawaiian Airlines and Alaska Airlines fly direct from San Francisco International to Cancun.
As of May 2025, there are 23 flights per week flying from San Francisco International to Cancun.
The cheapest month to fly from San Francisco International to Cancun is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Cancun Airport on Tuesday, 24 June 2025.
Yes – the average flight time is 5 hours and 19 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cancun but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cancun is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Cancun.

Flying from San Francisco International Airport (SFO) to Cancun International Airport (CUN): what you need to know

  • The average duration of a direct flight from San Francisco International Airport to Cancun International Airport is 5 hours 20 minutes.

  • Cancun is two hours ahead of San Francisco and is in the UTC-5 timezone.

  • Flights from SFO to CUN start at 07:00 — the earliest with United Airlines. The latest departure is at 23:31 with United Airlines. Overall, you can choose from 22 weekly San Francisco International Airport to Cancun International Airport flights.

  • Give yourself plenty of time to catch your SFO to CUN flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer queues in popular months like August. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a smart move.

  • Alaska Airlines is your ticket to exploring Cancun (and maybe even some other exciting corners of Mexico!). Check out the direct flights from San Francisco International Airport to Cancun International Airport offered by this popular airline.

  • Alaska Airlines is the airline with the highest passenger demand for this route.

  • United Airlines is the most punctual carrier that operates SFO to CUN flights, with 74.39% of its services landing on time.

  • We make it simple to book a flight with a stopover. To see your options for tickets from San Francisco International Airport to Cancun International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit your chosen city. Some great stopovers between SFO and CUN include:

    • Phoenix Sky Harbour International Airport

    • Los Angeles International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from San Francisco International Airport (SFO) to Cancun International Airport (CUN)

  • R 2,978 is currently the best price for a one-way San Francisco International Airport to Cancun International Airport flight. Return flights start at R 6,504. These prices may change based on demand.

  • To pick up cheap tickets from SFO to CUN, reserve your trip six months before your departure.

  • Schedule your trip for May. That's the cheapest month for flights from San Francisco International Airport to Cancun International Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest price across each month.

  • Cut down on the time spent looking for cheap flights from SFO to CUN by setting up a Price Alert. We'll send you an email or push notification on the app when fares go down.

  • Tailor your trip using filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from San Francisco International Airport to Cancun International Airport.

Handy information about San Francisco International Airport (SFO)

  • 77.36% of flights taking off from San Francisco International Airport arrive at their destination on schedule.

  • Central San Francisco to San Francisco International Airport is around 21 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The journey on public transport will take about 45 minutes.

  • Searching for a handy hotel close to SFO? If you've booked an early flight from San Francisco International Airport to Cancun International Airport, these stays will put you moments from your departure gate:

Arriving at Cancun International Airport (CUN)

Getting from Cancun International Airport (CUN) to central Cancun

  • Cancun International Airport to the centre of Cancun has a drive time of about 25 minutes. It's approximately 19 kilometres away.

When to fly to Cancun International Airport (CUN)

  • July is the most popular month for flights from San Francisco International Airport to Cancun International Airport. To skip the crowds, go to Cancun in May.

  • Book your flight from San Francisco International Airport to Cancun International Airport for August if you'd like to visit Cancun during its warmest month. You can expect temperatures of between 26ºC (79ºF) and 32ºC (90ºF).

  • If you want cooler conditions, search for a cheap ticket from SFO to CUN in January. Temperatures average between 20ºC (68ºF) and 27ºC (81ºF) then.

Explore more of Mexico

  • You've visited Cancun, now it's time to explore other parts of Mexico. Travel around 290 kilometres west to Merida to check off its leading sights. From P. ANDADOR NVA. CHICHEN ITZA to Pre Hispanic Town Of Uxmal and El Palacio de Gobierno, your itinerary will be busy.

  • Around 418 kilometres west of Cancun, Campeche is another favourite stop in Mexico. Experience major highlights starting with Campeche Waterfront Promenade, Zona Arquelogica Edzna and Centro Historico de San Francisco de Campeche.

Plan the rest of your trip from San Francisco to Cancun

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.