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Cheap flights from San Francisco to Cancún from £129

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
29 May — 5 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 29 April 2026.

Sat 12/918:50
SFO
-
CUN
2 stops14h 40m
Delta
Sat 19/912:30
CUN
-
SFO
2 stops13h 22m
Delta
Deal found 28/4£331
Mon 25/523:27
SFO
-
CUN
Nonstop5h 21m
United Airlines
Mon 1/607:58
CUN
-
SFO
1 stop8h 55m
United Airlines
Deal found 27/4£337
Tue 12/523:27
SFO
-
CUN
Nonstop5h 21m
United Airlines
Fri 15/507:58
CUN
-
SFO
1 stop8h 54m
United Airlines
Deal found 28/4£340
Thu 28/505:00
SFO
-
CUN
1 stop9h 45m
United Airlines
Thu 4/612:57
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 26/4£342
Wed 27/508:46
SFO
-
CUN
Nonstop5h 26m
United Airlines
Wed 3/612:57
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 29/4£343
Mon 11/506:00
SFO
-
CUN
1 stop7h 12m
United Airlines
Fri 15/507:58
CUN
-
SFO
1 stop8h 54m
United Airlines
Deal found 26/4£344
Tue 28/723:27
SFO
-
CUN
Nonstop5h 21m
United Airlines
Mon 3/817:22
CUN
-
SFO
1 stop8h 53m
United Airlines
Deal found 25/4£345
Wed 3/606:15
SFO
-
CUN
1 stop8h 30m
United Airlines
Tue 9/612:57
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 25/4£346
Wed 27/508:46
SFO
-
CUN
Nonstop5h 26m
United Airlines
Sat 30/507:58
CUN
-
SFO
1 stop8h 55m
United Airlines
Deal found 28/4£350
Fri 27/1123:45
SFO
-
CUN
1 stop8h 20m
Delta
Thu 3/1211:20
CUN
-
SFO
1 stop11h 39m
Delta
Deal found 27/4£352
Fri 8/519:05
SFO
-
CUN
1 stop9h 36m
United Airlines
Mon 11/512:57
CUN
-
SFO
Nonstop5h 50m
United Airlines
Deal found 25/4£353

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 29 April 2026.

Round-trip from

£331

One-way from

£129

Popular in

December

Cheapest in

January

Average price

£484

Good round-trip deal

£425 or less
Delta
  • Delta
  • 12/9-19/9
  • 4 total stops
  • 28h 02m total
  • San Francisco to Cancún
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Southwest
  • Southwest
  • 30/7
  • 1 total stop
  • 8h 15m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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Price to beat on a round-trip flight from San Francisco to Cancun.
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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 858,174 searches. Data last updated 29 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 return flight

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 10/8

08:46-16:12

Nonstop5h 26m

Cancun

Fri 14/8

07:51-00:16

1 stop18h 25m

£365

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 27/6

07:03-20:26

1 stop11h 23m

Cancun

Thu 2/7

16:28-23:30

1 stop9h 02m

£372

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 14/6

23:51-16:35

1 stop14h 44m

Cancun

Wed 17/6

11:27-21:50

2 stops12h 23m

£380

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 25/5

07:15-19:43

2 stops10h 28m

Cancun

Sat 30/5

06:03-15:56

2 stops11h 53m

£383

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 8/8

23:27-06:48

Nonstop5h 21m

Cancun

Sat 15/8

13:43-00:16

1 stop12h 33m

£409

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 31/5

23:27-06:48

Nonstop5h 21m

Cancun

Sat 6/6

07:58-14:53

1 stop8h 55m

£409
Fastest return journey

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 17/8

08:51-16:12

Nonstop5h 21m

Cancun

Sat 22/8

17:22-00:16

1 stop8h 54m

£409

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 10/5

23:10-14:26

1 stop13h 16m

Cancun

Wed 13/5

17:01-20:49

Nonstop5h 48m

£412

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sat 23/5

18:54-19:19

1 stop22h 25m

Cancun

Thu 28/5

17:01-20:49

Nonstop5h 48m

£420

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 31/5

07:15-19:43

2 stops10h 28m

Cancun

Sat 6/6

15:30-22:06

1 stop8h 36m

£430

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 £391). Flying from San Francisco to Cancún in December is currently the most expensive (average of £550). 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 29 April 2026.

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.

How much does it cost for a return flight from San Francisco to Cancún?

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?

    Within the past month, 4 users have taken a look at flights from San Francisco to Cancun.

  • How long is the flight from San Francisco to Cancún?

    There are many flights that can get you from San Francisco to Cancún in 5h 26m. Fly via United Airlines or Delta to get the fastest option. San Francisco and Cancún are separated by a distance of 2404 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

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

    On average you can expect to pay £477 for a flight from San Francisco to Cancún. The cheapest flight overall is £425 while the most popular route, (San Francisco - Cancun) is currently priced at £246.

  • 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.

  • 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 £391). Flying from San Francisco to Cancún in December is currently the most expensive (average of £550). 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

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Alternative routes for San Francisco to Cancún

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Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco to Cancún?

When you search for this flight from San Francisco to Cancún, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to Cancún flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from San Francisco to Cancún on Cheapflights with our Price Alert feature and get notified when better prices are available.

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