$170 Cheap Flights from San Francisco (SFO) to Cancun (CUN)

View $170 flight on Sat, May 30, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Cancun Intl. Airport (CUN)

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Cheap Flights from San Francisco to Cancun (SFO-CUN)

Prices were available within the past 7 days and start at $170 for one-way flights and $359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, May 6 - Tue, May 12
SFO
San Francisco
CUN
Cancun
$359 Roundtrip, just found
$359
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 6 from San Francisco to Cancun, returning Tue, May 12, priced at $359 just found
Frontier Airlines
Wed, May 6 - Tue, May 12
SFO
San Francisco
CUN
Cancun
$365 Roundtrip, just found
$365
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 6 from San Francisco to Cancun, returning Tue, May 12, priced at $365 just found
Frontier Airlines
Fri, May 8 - Sun, May 10
SFO
San Francisco
CUN
Cancun
$369 Roundtrip, just found
$369
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 8 from San Francisco to Cancun, returning Sun, May 10, priced at $369 just found
Frontier Airlines
Tue, May 5 - Thu, May 7
SFO
San Francisco
CUN
Cancun
$377 Roundtrip, just found
$377
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 5 from San Francisco to Cancun, returning Thu, May 7, priced at $377 just found
Frontier Airlines
Tue, Mar 24 - Thu, Mar 26
SFO
San Francisco
CUN
Cancun
$378 Roundtrip, just found
$378
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Mar 24 from San Francisco to Cancun, returning Thu, Mar 26, priced at $378 just found
Frontier Airlines
Wed, Apr 8 - Tue, Apr 14
SFO
San Francisco
CUN
Cancun
$380 Roundtrip, just found
$380
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 8 from San Francisco to Cancun, returning Tue, Apr 14, priced at $380 just found
Alaska Airlines
Sat, May 9 - Wed, May 13
SFO
San Francisco
CUN
Cancun
$395 Roundtrip, found 20 hours ago
$395
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Sat, May 9 from San Francisco to Cancun, returning Wed, May 13, priced at $395 found 20 hours ago
Southwest Airlines
Mon, Apr 27 - Wed, Apr 29
SFO
San Francisco
CUN
Cancun
$443 Roundtrip, just found
$443
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Apr 27 from San Francisco to Cancun, returning Wed, Apr 29, priced at $443 just found
Aeromexico
Sun, Apr 12 - Thu, Apr 16
SFO
San Francisco
CUN
Cancun
$449 Roundtrip, just found
$449
Roundtrip
just found
Select Aeromexico flight, departing Sun, Apr 12 from San Francisco to Cancun, returning Thu, Apr 16, priced at $449 just found
Delta
Mon, Apr 20 - Wed, Apr 22
SFO
San Francisco
CUN
Cancun
$449 Roundtrip, just found
$449
Roundtrip
just found
Select Delta flight, departing Mon, Apr 20 from San Francisco to Cancun, returning Wed, Apr 22, priced at $449 just found

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Alternative airports near Cancun

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cancun Intl. CUN. Cheapest and Closest option available. Average driving time to city center is 18 minutes. Flights from $577
CUN
Cancun Intl.
CheapestClosest
Average driving time to city center18 min
Flights from $577

Find the cheapest month to fly from San Francisco (SFO) to Cancun (CUN)

January is typically the cheapest month to fly

From $321 - $493 per traveler.

Frequently asked questions

How much does a flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) cost?
You can find cheap one-way flights from $170 and cheap return flights from $359 San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) with Expedia. One-way flights generally range between $171 and $1121, and roundtrip flights usually range from $444 to $2625. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The cheapest month to fly from SFO to CUN is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
2 airlines operate nonstop service from SFO to CUN:

  • United operates around 15 direct flights from SFO to CUN every week
  • Hawaiian Airlines operates around 7 direct flights from SFO to CUN every week

What is the cheapest airline that flies from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from San Francisco Intl. (SFO) to Cancun Intl. (CUN), with round-trip tickets starting from around $425. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The best airline to fly with from San Francisco, CA (SFO) to Cancun, Quintana Roo (CUN) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. Delta offers the most daily flights from SFO to CUN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
You can find approximately 2 nonstop flights per day from San Francisco Intl. (SFO) to Cancun Intl. (CUN). For more options, look at flights that include layovers.
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The earliest flight from San Francisco International Airport (SFO) to Cancun International Airport (CUN) typically departs at around 12:05 AM local time, operated by Avianca. This seasonal service is active from March to October, allowing you to kick off your vacation in Cancun early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The most popular departure times for flights from San Francisco International Airport (SFO) to Cancun International Airport (CUN) are in the early morning, from 6am to 9am. About 38% of passengers prefer this time window. Many major carriers, including United, American Airlines, and Alaska Airlines, offer flights during this window. This timing works well because it allows you to arrive in Cancun with plenty of time to enjoy your day.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Direct flights from SFO to CUN usually take about 5 hours 20 minutes, traveling roughly 2,406 miles. If you opt for a connecting flight, expect to add around 7 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
You can fly business class between SFO and CUN. Airlines that offer business class service on this route include:

  • Aeromexico
  • Delta Air Lines
  • United Airlines
  • Air Canada
  • American Airlines
  • Turkish Airlines
  • Aer Lingus
  • Hawaiian Airlines
  • Copa
  • Avianca

How much is a business class flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
A direct, return business class ticket from San Francisco (SFO) to Cancun (CUN) typically costs between $1,678 - $2,956. A non-stop, one-way business class flight is usually around $606 - $2,433. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cancun from San Francisco Intl. (SFO)?
If you're planning to travel to Cancun from San Francisco Intl. (SFO), you can fly into Cancun Intl. (CUN) Some flights may connect through major hubs like Los Angeles Intl. (LAX), Portland Intl. (PDX), Seattle - Tacoma Intl. (SEA) before reaching Cancun. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package?
Securing a San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) Quintana Roo Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
If you booked your San Francisco, CA (SFO-San Francisco Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United, avianca
Roundtrip price
$359
Distance
2405 mi
Average flight time
8 hours 19 mins

Book with confidence

San Francisco to Cancun Flights

The cheapest times to fly from San Francisco to Cancun

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Cancun are during the month of May. You can find some of the cheapest flights from San Francisco to Cancun with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Cancun

Sunday is one of the best days to book for cheap flights from San Francisco to Cancun: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Cancun

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Cancun in 2026. You can also book with separate airlines for your outbound and return journeys, from $170 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Cancun flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Cancun airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to Cancun Flights

*Flight schedules are subject to change.

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*Available to One Key members.