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Cheap flights from San Francisco to Cancún from C$ 264

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
13 Apr — 20 Apr1
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 51 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 14 March 2026.

Wed 1/48:46 a.m.
SFO
-
CUN
Nonstop5h 26m
United Airlines
Wed 15/412:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 10/3C$ 546
Thu 16/411:27 p.m.
SFO
-
CUN
Nonstop5h 21m
United Airlines
Wed 22/43:24 p.m.
CUN
-
SFO
1 stop9h 06m
United Airlines
Deal found 10/3C$ 560
Sun 19/45:00 a.m.
SFO
-
CUN
1 stop7h 18m
United Airlines
Sat 25/41:43 p.m.
CUN
-
SFO
1 stop8h 40m
United Airlines
Deal found 10/3C$ 565
Fri 17/411:27 p.m.
SFO
-
CUN
Nonstop5h 21m
United Airlines
Mon 20/412:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 10/3C$ 577
Mon 13/48:46 a.m.
SFO
-
CUN
Nonstop5h 26m
United Airlines
Mon 20/47:58 a.m.
CUN
-
SFO
1 stop8h 54m
United Airlines
Deal found 10/3C$ 591
Tue 31/311:27 p.m.
SFO
-
CUN
Nonstop5h 21m
United Airlines
Mon 6/45:01 p.m.
CUN
-
SFO
Nonstop5h 48m
United Airlines
Deal found 10/3C$ 599
Tue 19/512:45 a.m.
SFO
-
CUN
1 stop9h 17m
United Airlines
Fri 22/512:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 10/3C$ 610
Tue 19/512:45 a.m.
SFO
-
CUN
1 stop7h 21m
United Airlines
Wed 27/52:20 p.m.
CUN
-
SFO
1 stop7h 50m
United Airlines
Deal found 10/3C$ 624
Sat 4/411:55 p.m.
SFO
-
CUN
1 stop11h 08m
Delta
Thu 9/46:01 a.m.
CUN
-
SFO
1 stop8h 59m
Delta
Deal found 9/3C$ 636

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 14 March 2026.

Round-trip from

C$ 546

One-way from

C$ 264

Popular in

December

Cheapest in

January

Average price

C$ 829
United Airlines
  • United Airlines
  • 1/4-15/4
  • Nonstop
  • 11h 16m total
  • San Francisco to Cancún
Search Deals
United Airlines
  • United Airlines
  • 21/4
  • Nonstop
  • 5h 26m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 14 March 2026.
Use the filters below to find and compare flights from San Francisco to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 10/6

5:00 a.m.-4:45 p.m.

1 stop9h 45m

Cancun

Wed 17/6

12:57 p.m.-4:47 p.m.

Nonstop5h 50m

C$ 669

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 9/6

6:00 a.m.-8:23 p.m.

1 stop12h 23m

Cancun

Mon 15/6

12:25 p.m.-10:25 p.m.

1 stop12h 00m

C$ 669

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 12/4

6:00 a.m.-3:12 p.m.

1 stop7h 12m

Cancun

Wed 15/4

5:01 p.m.-8:49 p.m.

Nonstop5h 48m

C$ 669

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 17/5

5:40 a.m.-7:43 p.m.

2 stops12h 03m

Cancun

Sat 23/5

9:14 a.m.-11:40 p.m.

2 stops16h 26m

C$ 683

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 10/4

8:45 p.m.-3:00 p.m.

1 stop16h 15m

Cancun

Fri 17/4

5:15 p.m.-7:30 a.m.

1 stop16h 15m

C$ 724

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 31/3

5:01 p.m.-10:05 a.m.

2 stops15h 04m

Cancun

Thu 9/4

11:05 a.m.-11:59 p.m.

2 stops14h 54m

C$ 764

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 4/4

11:55 p.m.-7:40 p.m.

1 stop17h 45m

Cancun

Tue 14/4

6:01 a.m.-1:00 p.m.

1 stop8h 59m

C$ 765

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 29/3

11:55 p.m.-4:50 p.m.

1 stop14h 55m

Cancun

Tue 7/4

2:40 p.m.-11:59 p.m.

1 stop11h 19m

C$ 779
Quickest round-trip

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 16/7

11:27 p.m.-6:48 a.m.

Nonstop5h 21m

Cancun

Thu 23/7

12:57 p.m.-4:47 p.m.

Nonstop5h 50m

C$ 781

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 25/8

10:35 p.m.-1:10 p.m.

1 stop12h 35m

Cancun

Sat 29/8

3:34 p.m.-7:17 p.m.

Nonstop5h 43m

C$ 783

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 24 resultsSorted by cheapest first
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 6 March 2026.

Booking 51 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, July is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 256). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 493). 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 14 March 2026.

When flying from San Francisco to Cancún, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 14 March 2026.
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
9,423 reviews
Check prices

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

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
9,423 reviews
United Airlines
7.4
Good
9,423 reviews
Check prices

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

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 2 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 9h 45m. Fly via United Airlines, Delta, or Alaska Airlines to get the fastest option. 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 is the cheapest airline to fly from San Francisco to Cancún round-trip?

    United Airlines, at C$ 697, was found to be the cheapest airline from San Francisco to Cancún.. Users have found that United Airlines is 18% cheaper than the other options available to this destination.

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

    Consider Hawaiian Airlines (63%), United Airlines (62%) or American Airlines (60%) when booking your flight. These represent the most reliable airlines 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, July is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 256). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 493). 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
Holbox
Puerto Aventuras
Punta Sam

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

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 14 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 697AverageC$ 971FlexibilityNo 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.

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