Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Francisco to Cancún from C$ 219

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from San Francisco to Cancun are usually found in January or February, booked 49 days in advance, depart on a Monday or Tuesday and return on a Monday

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 12 December 2025.

Wed 31/128:59 a.m.SFO - CUN
Nonstop5h 21mUnited Airlines
Thu 8/18:39 a.m.CUN - SFO
1 stop12h 11mUnited Airlines
Deal found 10/12C$ 615
Wed 10/1211:01 p.m.SFO - CUN
Nonstop5h 12mUnited Airlines
Wed 14/15:50 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 10/12C$ 618
Tue 30/1212:10 a.m.SFO - CUN
1 stop9h 00mDelta
Wed 7/14:25 p.m.CUN - SFO
1 stop10h 22mDelta
Deal found 10/12C$ 627
Wed 10/126:45 p.m.SFO - CUN
2 stops14h 45mDelta
Wed 14/11:43 p.m.CUN - SFO
2 stops13h 04mDelta
Deal found 10/12C$ 645
Sat 13/126:55 p.m.SFO - CUN
2 stops14h 35mDelta
Sat 17/112:05 p.m.CUN - SFO
2 stops12h 50mDelta
Deal found 11/12C$ 672
Fri 26/1211:01 p.m.SFO - CUN
Nonstop5h 12mUnited Airlines
Thu 15/11:35 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 10/12C$ 696
Wed 10/126:45 p.m.SFO - CUN
2 stops14h 45mDelta
Thu 8/112:05 p.m.CUN - SFO
2 stops13h 50mDelta
Deal found 10/12C$ 764
Fri 12/1211:01 p.m.SFO - CUN
Nonstop5h 12mUnited Airlines
Thu 18/125:00 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 10/12C$ 786
Wed 31/128:20 a.m.SFO - CUN
Nonstop5h 29mAlaska Airlines
Wed 7/14:00 p.m.CUN - SFO
1 stop34h 03mAlaska Airlines
Deal found 10/12C$ 789

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 12 December 2025.

Round-trip from

C$ 506

One-way from

C$ 219

Popular in

December

Cheapest in

January

Average price

C$ 1,038

Good round-trip deal

C$ 979 or less
United Airlines
  • United Airlines
  • 9/1-13/1
  • 2 total stops
  • 16h 36m total
  • San Francisco to Cancún
Search Deals
United Airlines
  • United Airlines
  • 8/2
  • Nonstop
  • 5h 12m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Cancun.
Search Deals

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 12 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

Sat 10/1

6:45 p.m.-11:24 a.m.

2 stops13h 39m

Cancun

Sat 17/1

12:05 p.m.-9:55 p.m.

2 stops12h 50m

C$ 514

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 6/1

8:22 a.m.-6:49 p.m.

1 stop7h 27m

Cancun

Sat 17/1

5:55 p.m.-9:05 p.m.

Nonstop6h 10m

C$ 516

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 12/3

5:40 a.m.-3:10 p.m.

1 stop7h 30m

Cancun

Thu 19/3

7:00 a.m.-5:28 p.m.

2 stops12h 28m

C$ 517

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 10/1

7:40 p.m.-5:05 p.m.

1 stop18h 25m

Cancun

Sat 17/1

5:55 p.m.-9:05 p.m.

Nonstop6h 10m

C$ 520

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 4/1

10:30 p.m.-4:35 p.m.

1 stop15h 05m

Cancun

Tue 13/1

12:24 p.m.-11:25 p.m.

2 stops14h 01m

C$ 524

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

6:30 a.m.-9:10 p.m.

1 stop11h 40m

Cancun

Sat 17/1

7:05 p.m.-7:57 a.m.

1 stop15h 52m

C$ 528

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 20/2

6:00 a.m.-6:00 p.m.

1 stop9h 00m

Cancun

Sat 28/2

7:00 a.m.-3:03 p.m.

2 stops11h 03m

C$ 534

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 12/3

5:40 a.m.-3:10 p.m.

1 stop7h 30m

Cancun

Mon 16/3

11:05 a.m.-11:16 p.m.

2 stops14h 11m

C$ 541

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 21/2

6:00 a.m.-2:50 p.m.

1 stop29h 50m

Cancun

Sat 28/2

5:55 p.m.-9:12 p.m.

Nonstop6h 17m

C$ 543

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 1/3

6:43 p.m.-2:50 p.m.

1 stop17h 07m

Cancun

Sat 7/3

6:15 p.m.-6:31 a.m.

1 stop15h 16m

C$ 564

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 22 results
1
2
3

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 round-trip 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 round-trip flight from San Francisco to Cancún. Price data was last updated on 5 December 2025.

Booking 49 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 C$ 223). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 496). 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 12 December 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 57% on flights from San Francisco to Cancún by exploring options for tickets in the afternoon.

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cancún. Reviews last updated 12 December 2025.
See what other customers who have flown with United Airlines from San Francisco to Cancún have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What airports do I use to fly from San Francisco to Cancún?

    Cancun is the airport most travellers will use when flying to Cancún from San Francisco. Booking flights from San Francisco (SFO) to Cancun (CUN) should be relatively easy as there are 2 daily flights to Cancún from 1 airline. 5h 12m is how long a flight from San Francisco to Cancun will take if you book a nonstop flight.

  • 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?

    There are many flights that can get you from San Francisco to Cancún in 13h 39m. Fly via Delta to get the fastest option. The distance from San Francisco to Cancún is about 3869 km.

  • What is the cheapest airline to fly from San Francisco to Cancún round-trip?

    United Airlines, at C$ 702, was found to be the cheapest airline from San Francisco to Cancún.. Users have found that United Airlines is 19% cheaper than the other options available to this destination.

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

    Consider United Airlines (89%), American Airlines (85%) or Alaska Airlines (85%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Cancún.

  • What are the cheapest flights from San Francisco to Cancún?

    Looking at all options, your cheapest flight can be booked for C$ 979. While the most popular route (San Francisco - Cancun) can be booked for C$ 485 on average, our data indicates C$ 979 when flying from San Francisco to Cancún.

  • 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 vacation 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 C$ 223). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 496). 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

Travelling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Top airline flying from San Francisco to Cancún

Discover the top airline that operate flights from San Francisco to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 702AverageC$ 979FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Deals for San Francisco to Cancún flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Cancún?

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Cancún for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Francisco to Cancún with no change fees?

Yes! Cheapflights helps users easily find flights from San Francisco to Cancún with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to Cancún become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Cancún flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.