$148 Cheap Flights from Cancun (CUN) to San Francisco (SFO)

View $148 flight on Fri, Sep 19, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $148 for one-way flights and $272 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Aug 28 - Wed, Sep 10
CUN
Cancun
SFO
San Francisco
$272 Roundtrip, found 8 hours ago
$272
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Thu, Aug 28 from Cancun to San Francisco, returning Wed, Sep 10, priced at $272 found 8 hours ago
Southwest Airlines
Wed, Oct 1 - Tue, Oct 7
CUN
Cancun
SFO
San Francisco
$331 Roundtrip, found 3 days ago
$331
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Cancun to San Francisco, returning Tue, Oct 7, priced at $331 found 3 days ago
Alaska Airlines
Thu, Oct 16 - Mon, Oct 20
CUN
Cancun
SFO
San Francisco
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Oct 16 from Cancun to San Francisco, returning Mon, Oct 20, priced at $333 found 2 days ago
Alaska Airlines
Thu, Aug 28 - Wed, Sep 10
CUN
Cancun
SFO
San Francisco
$334 Roundtrip, found 8 hours ago
$334
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Thu, Aug 28 from Cancun to San Francisco, returning Wed, Sep 10, priced at $334 found 8 hours ago
Southwest Airlines
Wed, Aug 20 - Tue, Aug 26
CUN
Cancun
SFO
San Francisco
$337 Roundtrip, found 13 hours ago
$337
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Cancun to San Francisco, returning Tue, Aug 26, priced at $337 found 13 hours ago
Southwest Airlines
Fri, Aug 29 - Tue, Sep 9
CUN
Cancun
SFO
San Francisco
$337 Roundtrip, found 3 days ago
$337
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Fri, Aug 29 from Cancun to San Francisco, returning Tue, Sep 9, priced at $337 found 3 days ago
Southwest Airlines
Tue, Sep 30 - Mon, Oct 6
CUN
Cancun
SFO
San Francisco
$349 Roundtrip, found 2 days ago
$349
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Sep 30 from Cancun to San Francisco, returning Mon, Oct 6, priced at $349 found 2 days ago
Frontier Airlines
Wed, Jul 30 - Wed, Aug 13
CUN
Cancun
SFO
San Francisco
$360 Roundtrip, found 2 days ago
$360
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jul 30 from Cancun to San Francisco, returning Wed, Aug 13, priced at $360 found 2 days ago
JetBlue Airways
Sat, Aug 30 - Tue, Sep 9
CUN
Cancun
SFO
San Francisco
$363 Roundtrip, found 8 hours ago
$363
Roundtrip
found 8 hours ago
Select JetBlue Airways flight, departing Sat, Aug 30 from Cancun to San Francisco, returning Tue, Sep 9, priced at $363 found 8 hours ago
Hawaiian Airlines
Wed, Aug 20 - Mon, Sep 15
CUN
Cancun
SFO
San Francisco
$366 Roundtrip, found 3 days ago
$366
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Aug 20 from Cancun to San Francisco, returning Mon, Sep 15, priced at $366 found 3 days ago

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

October is typically the cheapest month to fly

From $290 - $545 per traveler.

Graph displaying average flight prices per month

Flights from Cancun (CUN) to San Francisco (SFO)
Origin airport
Cancun Intl.
Destination airport
San Francisco 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
$271
Distance
2405 mi
Average flight time
3 hours 47 mins

Cancun to San Francisco Flights

The cheapest times to fly from Cancun to San Francisco

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 Cancun to San Francisco are during the month of August. You can find some of the cheapest flights from Cancun to San Francisco with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Cancun to San Francisco: 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 Cancun to San Francisco

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 Cancun to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $148 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 Cancun to San Francisco 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 Cancun to San Francisco 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.

 

Frequently asked questions

How much does a flight from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO) cost?
You can pick up cheap return tickets starting from $496 from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving CUN on July 31 2025 and touching down at SFO. The price was last updated on July 4 2025 and has not changed since.
What is the cheapest month to fly from CUN to SFO?
The cheapest flights from CUN to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
Board a direct flight with United Airlines and go straight from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO).
What is the cheapest airline that flies from CUN to SFO?
Currently, the cheapest carrier operating one-way flights from CUN to SFO is United. You can take off on this route from $260. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CUN on September 5 2025. Prices were last updated on July 4 2025 and have not changed since.
How many flights per day from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
With, on average, 2 direct flights that operate from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO) each day, you'll be up in the air in no time.
What are the most popular departure times for flights from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
More people fly between CUN and SFO at 5 PM than at any other time of day. Rather go when it's quieter? Travel outside of rush hours and there's a chance you'll save on your fare as well.
What day of the week has the most flights from CUN to SFO?
Depart on a Saturday if you're searching for the biggest selection of flights from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO).
What is the earliest flight from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
Cancun Intl. Airport (CUN)'s earliest flight to San Francisco Intl. Airport (SFO) is at approximately 1:10PM UTC-5. With a total flight time of 6h 3m, you'll touch down at around 4:13PM UTC-8.
How long does it take to fly from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
The average flight time from CUN to SFO is 6 hours and 3 minutes, covering a total distance of 2,400 mi.
What airline has the least delays from CUN to SFO?
With 83% of journeys typically arriving on schedule, United Airlines has the best on-time performance for direct flights from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO). To keep track of your flight status and get notified about any changes, simply head to the Expedia App.
What is the best time to fly from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
To land at San Francisco Intl. Airport (SFO) on schedule, select a flight that takes off from Cancun Intl. Airport (CUN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Francisco from Cancun Intl. Airport (CUN)?
San Francisco Intl. Airport (SFO) is the only airport in San Francisco with direct flights from Cancun Intl. Airport (CUN). Browse the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO) last-minute?
Holding off until just before your departure to book a ticket from CUN to SFO generally means paying more. While you may come across some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a CUN to SFO flight and hotel package?
You'll generally save money by securing a CUN to SFO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your ideal flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to San Francisco Intl. Airport (SFO)?
In most cases, you can cancel or modify your CUN to SFO flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, head to our Customer Service portal.

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