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Cheap flights from San Francisco to Cancún from C$ 274

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CUN
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 610

One-way from

C$ 274

Popular in

December

Cheapest in

January

Average price

C$ 840
Alaska Airlines
  • Alaska Airlines
  • 27/10-5/11
  • 3 total stops
  • 30h 23m total
  • San Francisco to Cancún
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JetBlue
  • JetBlue
  • 23/11
  • 1 total stop
  • 12h 58m total
  • San Francisco to Cancún
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Highest demand for flights based on searches. 3% potential increase in price (C$ 49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Francisco to Cancún

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 11 September 2025.

Mon 27/109:12 a.m.SFO - CUN
1 stop7h 33mAlaska Airlines
Wed 5/116:15 p.m.CUN - SFO
2 stops22h 50mAlaska Airlines
Deal found 11/9C$ 610
Mon 3/1111:01 p.m.SFO - CUN
Nonstop5h 12mUnited Airlines
Wed 12/116:30 a.m.CUN - SFO
1 stop8h 40mUnited Airlines
Deal found 10/9C$ 611
Wed 29/106:23 p.m.SFO - CUN
2 stops22h 22mAlaska Airlines
Sat 1/117:55 p.m.CUN - SFO
1 stop14h 39mAlaska Airlines
Deal found 11/9C$ 612
Tue 28/106:23 p.m.SFO - CUN
2 stops46h 22mAlaska Airlines
Mon 3/116:15 p.m.CUN - SFO
1 stop8h 43mAlaska Airlines
Deal found 10/9C$ 614
Sun 9/119:12 a.m.SFO - CUN
1 stop26h 38mAlaska Airlines
Mon 10/117:55 p.m.CUN - SFO
1 stop17h 00mAlaska Airlines
Deal found 11/9C$ 615
Sat 27/97:32 a.m.SFO - CUN
Nonstop5h 18mUnited Airlines
Wed 1/101:04 p.m.CUN - SFO
Nonstop5h 47mUnited Airlines
Deal found 10/9C$ 617
Mon 15/1212:43 a.m.SFO - CUN
1 stop14h 07mUnited Airlines
Tue 23/124:20 p.m.CUN - SFO
1 stop9h 45mUnited Airlines
Deal found 11/9C$ 618
Sat 11/107:54 p.m.SFO - CUN
2 stops41h 06mAlaska Airlines
Thu 16/105:30 p.m.CUN - SFO
1 stop8h 28mAlaska Airlines
Deal found 11/9C$ 619
Thu 25/911:59 p.m.SFO - CUN
1 stop8h 05mUnited Airlines
Thu 2/101:04 p.m.CUN - SFO
Nonstop5h 47mUnited Airlines
Deal found 10/9C$ 622
Sat 1/117:00 a.m.SFO - CUN
Nonstop5h 24mUnited Airlines
Fri 7/115:50 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 10/9C$ 625
Thu 30/1011:01 p.m.SFO - CUN
Nonstop5h 12mUnited Airlines
Mon 3/115:50 p.m.CUN - SFO
Nonstop6h 03mUnited Airlines
Deal found 11/9C$ 626
Tue 28/109:10 p.m.SFO - CUN
1 stop15h 05mJetBlue
Tue 4/112:40 p.m.CUN - SFO
1 stop11h 51mJetBlue
Deal found 10/9C$ 628

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 11 September 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

Mon 3/11

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

Nonstop5h 12m

Cancun

Wed 12/11

4:20 p.m.-10:55 p.m.

1 stop9h 35m

C$ 611

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 31/12

10:43 a.m.-6:55 p.m.

Nonstop5h 12m

Cancun

Fri 9/1

5:55 p.m.-11:59 p.m.

1 stop9h 04m

C$ 611

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 3/11

12:43 a.m.-12:54 p.m.

1 stop9h 11m

Cancun

Wed 12/11

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

1 stop9h 17m

C$ 618

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 2/11

12:43 a.m.-12:54 p.m.

1 stop9h 11m

Cancun

Tue 11/11

6:30 a.m.-12:10 p.m.

1 stop8h 40m

C$ 618

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 2/11

5:00 a.m.-3:46 p.m.

1 stop7h 46m

Cancun

Tue 11/11

6:30 a.m.-12:10 p.m.

1 stop8h 40m

C$ 618

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Sun 28/12

12:25 a.m.-8:18 p.m.

1 stop16h 53m

Cancun

Fri 9/1

5:55 p.m.-11:59 p.m.

1 stop9h 04m

C$ 618

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Wed 4/3

6:00 a.m.-4:10 p.m.

1 stop7h 10m

Cancun

Tue 10/3

5:15 p.m.-12:33 p.m.

2 stops21h 18m

C$ 621

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Thu 30/10

11:01 p.m.-6:13 a.m.

Nonstop5h 12m

Cancun

Mon 3/11

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

Nonstop6h 03m

C$ 626

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Fri 31/10

9:12 a.m.-6:45 p.m.

1 stop7h 33m

Cancun

Wed 5/11

6:15 p.m.-2:05 p.m.

2 stops22h 50m

C$ 639

San FranciscoCancún

SFO - CUN

SFOCUN

San Francisco

Mon 29/12

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

Nonstop5h 12m

Cancun

Mon 12/1

5:55 p.m.-11:59 p.m.

1 stop9h 04m

C$ 639

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 22 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 29 August 2025.

Booking 80 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, April is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 298). Flying from San Francisco to Cancún in July is currently the most expensive (average of C$ 464). 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 11 September 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 17% on flights from San Francisco to Cancún by exploring options for tickets at noon.

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 11 September 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
8,937 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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 24m 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 12m. Fly via United Airlines to get the fastest option. The distance from San Francisco to Cancún is about 3869 km. Generally, flights for this route are direct.

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

    United Airlines, at C$ 638, was found to be the cheapest airline from San Francisco to Cancún.. Users have found that United Airlines is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Francisco to Cancún one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as C$ 274. Users have also found prices from C$ 276 and C$ 283 on Hawaiian Airlines and United Airlines, respectively.

  • 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, April is the cheapest month in which you can book a flight from San Francisco to Cancún (average of C$ 298). Flying from San Francisco to Cancún in July is currently the most expensive (average of C$ 464). 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 638AverageC$ 1,022FlexibilityNo 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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