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Cheap flights from San Francisco to Cancún from C$ 222

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 28 October 2025.

Wed 10/127:15 a.m.SFO - CUN
1 stop11h 05mDelta
Wed 17/121:40 p.m.CUN - SFO
2 stops13h 23mDelta
Deal found 28/10C$ 505
Mon 8/1210:24 p.m.SFO - CUN
1 stop13h 26mAlaska Airlines
Sat 13/125:55 p.m.CUN - SFO
Nonstop6h 00mAlaska Airlines
Deal found 27/10C$ 509
Fri 28/116:00 a.m.SFO - CUN
1 stop9h 00mDelta
Tue 9/126:00 a.m.CUN - SFO
1 stop8h 55mDelta
Deal found 28/10C$ 511
Sat 29/118:27 a.m.SFO - CUN
Nonstop5h 13mAlaska Airlines
Fri 5/127:55 p.m.CUN - SFO
1 stop17h 41mAlaska Airlines
Deal found 28/10C$ 518
Fri 5/126:59 p.m.SFO - CUN
1 stop18h 41mAlaska Airlines
Thu 11/126:15 p.m.CUN - SFO
1 stop16h 14mAlaska Airlines
Deal found 28/10C$ 523
Fri 28/116:00 a.m.SFO - CUN
1 stop9h 00mDelta
Wed 3/1212:00 p.m.CUN - SFO
1 stop15h 20mDelta
Deal found 27/10C$ 524
Sat 29/118:27 a.m.SFO - CUN
Nonstop5h 13mAlaska Airlines
Thu 18/127:59 p.m.CUN - SFO
1 stop29h 08mAlaska Airlines
Deal found 27/10C$ 526
Sat 6/128:25 a.m.SFO - CUN
Nonstop5h 20mAlaska Airlines
Sat 13/125:55 p.m.CUN - SFO
Nonstop6h 00mAlaska Airlines
Deal found 28/10C$ 531
Fri 12/126:00 a.m.SFO - CUN
1 stop7h 46mUnited Airlines
Fri 19/125:50 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 27/10C$ 533
Mon 1/1212:43 a.m.SFO - CUN
1 stop9h 51mUnited Airlines
Tue 16/121:35 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 27/10C$ 536
Mon 17/118:06 p.m.SFO - CUN
1 stop15h 44mAlaska Airlines
Tue 23/125:59 p.m.CUN - SFO
Nonstop6h 16mAlaska Airlines
Deal found 27/10C$ 537
Sun 30/118:27 a.m.SFO - CUN
Nonstop5h 13mAlaska Airlines
Sat 6/127:55 p.m.CUN - SFO
1 stop14h 34mAlaska Airlines
Deal found 26/10C$ 545

Cheap 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 28 October 2025.

Round-trip from

C$ 505

One-way from

C$ 222

Popular in

December

Cheapest in

January

Average price

C$ 867
Delta
  • Delta
  • 10/12-17/12
  • 3 total stops
  • 24h 28m total
  • San Francisco to Cancún
Search Deals
United Airlines
  • United Airlines
  • 28/1
  • Nonstop
  • 5h 21m total
  • San Francisco to Cancún
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 28 October 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

Sun 18/1

12:47 a.m.-4:25 p.m.

1 stop12h 38m

Cancun

Sat 24/1

8:38 a.m.-7:59 p.m.

1 stop14h 21m

C$ 511

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 20/1

6:49 p.m.-12:05 p.m.

2 stops14h 16m

Cancun

Mon 26/1

12:05 p.m.-11:16 p.m.

2 stops14h 11m

C$ 531

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 4/12

7:25 p.m.-5:05 p.m.

1 stop18h 40m

Cancun

Fri 5/12

7:55 p.m.-7:29 a.m.

1 stop14h 34m

C$ 551

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

9:30 p.m.-11:15 a.m.

1 stop10h 45m

Cancun

Sat 17/1

6:55 p.m.-7:57 a.m.

1 stop16h 02m

C$ 551

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 9/1

9:54 p.m.-2:50 p.m.

1 stop13h 56m

Cancun

Sat 17/1

5:55 p.m.-9:08 p.m.

Nonstop6h 13m

C$ 565

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Tue 10/2

11:01 p.m.-7:13 a.m.

Nonstop5h 12m

Cancun

Sat 14/2

1:35 p.m.-4:38 p.m.

Nonstop6h 03m

C$ 579

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 7/12

10:24 p.m.-2:50 p.m.

1 stop13h 26m

Cancun

Sun 14/12

7:55 p.m.-7:29 a.m.

1 stop14h 34m

C$ 579

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 19/11

10:39 a.m.-12:24 a.m.

2 stops10h 45m

Cancun

Sun 23/11

7:00 p.m.-7:30 a.m.

1 stop15h 30m

C$ 614

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 14/11

11:01 p.m.-7:13 a.m.

Nonstop5h 12m

Cancun

Mon 24/11

5:50 p.m.-8:53 p.m.

Nonstop6h 03m

C$ 624

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 25/1

12:47 a.m.-3:25 p.m.

1 stop11h 38m

Cancun

Sun 1/2

6:06 a.m.-11:51 a.m.

1 stop8h 45m

C$ 635

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 24 results
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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 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 24 October 2025.

Booking 28 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$ 227). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 463). 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 28 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 58% 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 28 October 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
9,001 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

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
9,001 reviews
United Airlines
7.4
Good
9,001 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

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 is 1 daily flight 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 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 5h 13m. Fly via 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$ 773, was found to be the cheapest airline from San Francisco to Cancún.. Users have found that United Airlines is 13% cheaper than the other options available to this destination.

  • 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$ 227). Flying from San Francisco to Cancún in December is currently the most expensive (average of C$ 463). 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

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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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 773AverageC$ 1,031FlexibilityNo 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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