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Cheap flights from San Francisco to Cancún from C$ 239

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
26 May — 2 Jun1
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 26 April 2026.

Tue 2/66:15 a.m.
SFO
-
CUN
1 stop8h 30m
United Airlines
Sun 7/612:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 24/4C$ 631
Wed 6/58:46 a.m.
SFO
-
CUN
Nonstop5h 26m
United Airlines
Mon 11/512:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 25/4C$ 633
Sat 4/77:45 p.m.
SFO
-
CUN
1 stop8h 56m
United Airlines
Fri 10/712:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 24/4C$ 634
Tue 28/711:27 p.m.
SFO
-
CUN
Nonstop5h 21m
United Airlines
Mon 3/85:22 p.m.
CUN
-
SFO
1 stop8h 53m
United Airlines
Deal found 25/4C$ 637
Sat 30/56:00 a.m.
SFO
-
CUN
1 stop7h 12m
United Airlines
Thu 4/612:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 22/4C$ 638
Tue 5/57:59 p.m.
SFO
-
CUN
1 stop18h 21m
Alaska Airlines
Tue 12/55:30 p.m.
CUN
-
SFO
1 stop18h 00m
Alaska Airlines
Deal found 21/4C$ 640
Tue 12/58:46 a.m.
SFO
-
CUN
Nonstop5h 26m
United Airlines
Sat 16/53:24 p.m.
CUN
-
SFO
1 stop10h 35m
United Airlines
Deal found 22/4C$ 641
Fri 8/58:46 a.m.
SFO
-
CUN
Nonstop5h 26m
United Airlines
Wed 13/512:57 p.m.
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 23/4C$ 644
Sun 17/55:00 a.m.
SFO
-
CUN
1 stop7h 18m
United Airlines
Thu 21/52:20 p.m.
CUN
-
SFO
1 stop7h 50m
United Airlines
Deal found 23/4C$ 646
Thu 7/55:00 a.m.
SFO
-
CUN
1 stop7h 18m
United Airlines
Mon 11/55:01 p.m.
CUN
-
SFO
Nonstop5h 48m
United Airlines
Deal found 20/4C$ 648
Wed 6/59:00 a.m.
SFO
-
CUN
1 stop29h 20m
Alaska Airlines
Tue 12/55:30 p.m.
CUN
-
SFO
1 stop15h 57m
Alaska Airlines
Deal found 21/4C$ 649
Wed 3/67:15 a.m.
SFO
-
CUN
2 stops10h 20m
Delta
Wed 1/74:28 p.m.
CUN
-
SFO
1 stop9h 02m
Delta
Deal found 23/4C$ 650

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 26 April 2026.

Round-trip from

C$ 631

One-way from

C$ 239

Popular in

December

Cheapest in

January

Average price

C$ 894
United Airlines
  • United Airlines
  • 2/6-7/6
  • 1 total stop
  • 14h 20m total
  • San Francisco to Cancún
Search Deals
United Airlines
  • United Airlines
  • 11/5
  • Nonstop
  • 5h 26m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 26 April 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

Tue 5/5

5:00 a.m.-2:18 p.m.

1 stop7h 18m

Cancun

Wed 13/5

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

Nonstop5h 48m

C$ 665

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 6/5

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

1 stop7h 12m

Cancun

Fri 8/5

3:24 p.m.-10:52 p.m.

1 stop9h 28m

C$ 680

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 29/7

7:03 a.m.-7:27 p.m.

1 stop10h 24m

Cancun

Fri 7/8

6:03 a.m.-11:30 p.m.

1 stop19h 27m

C$ 687

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 8/5

5:00 a.m.-2:18 p.m.

1 stop7h 18m

Cancun

Thu 14/5

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

Nonstop5h 48m

C$ 706

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 10/5

8:46 a.m.-4:12 p.m.

Nonstop5h 26m

Cancun

Sat 16/5

5:22 p.m.-7:15 a.m.

1 stop15h 53m

C$ 715
Quickest round-trip

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 7/5

8:46 a.m.-4:12 p.m.

Nonstop5h 26m

Cancun

Mon 11/5

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

Nonstop5h 48m

C$ 735

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 4/8

10:30 p.m.-11:40 a.m.

1 stop11h 10m

Cancun

Mon 10/8

1:40 p.m.-9:35 p.m.

2 stops9h 55m

C$ 741

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 29/6

12:45 a.m.-10:06 a.m.

1 stop7h 21m

Cancun

Sat 4/7

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

Nonstop5h 48m

C$ 741

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 31/5

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

Nonstop5h 21m

Cancun

Sat 6/6

7:58 a.m.-2:53 p.m.

1 stop8h 55m

C$ 756

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 19/6

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

Nonstop5h 21m

Cancun

Tue 23/6

5:22 p.m.-12:15 a.m.

1 stop8h 53m

C$ 761

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 23 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?

Booking 50 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, January is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 723). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 1,015). 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 26 April 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.

How much does it cost to fly round-trip from San Francisco to Cancún?

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 26 April 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
9,657 reviews
Check prices

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

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
9,657 reviews
United Airlines
7.4
Good
9,657 reviews
Check prices

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

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 21m 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 7h 18m. Fly via United Airlines or Delta 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$ 696, 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 United Airlines (56%), American Airlines (40%) or Alaska Airlines (40%) 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, January is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 723). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 1,015). 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 26 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 696AverageC$ 970FlexibilityNo 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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