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$231+ Cheap flights from Cancún (CUN) to San Francisco (SFO)

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SFO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Cancun to San Francisco are usually found in February or August, booked 63 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Cancún to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) to San Francisco (SFO). 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 September 17, 2025.

Round-trip from

$278
(Trip.com)

One-way from

$231
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$564

Good round-trip deal

$326 or less

Good one-way deal

$304 or less
From Cancun to San Francisco
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One-way flight from Cancun to San Francisco
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Highest demand for flights based on searches. 11% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Cancun to San Francisco.
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Price to beat on a one-way flight from Cancun to San Francisco.
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Find flight deals from Cancún to San Francisco

Cheapest flights from Cancún to San Francisco
Explore the most affordable flight options available from Cancún to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Trip.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:39 amCUN - SFO
1 stop12h 08mUnited Airlines
Sun 11/165:15 amSFO - CUN
1 stop7h 44mUnited Airlines
Deal found 9/17$278
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:04 pmCUN - SFO
Nonstop5h 47mUnited Airlines
Sun 10/1912:43 amSFO - CUN
1 stop16h 37mUnited Airlines
Deal found 9/16$283
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/99:11 amCUN - SFO
1 stop14h 04mDelta
Mon 10/136:00 amSFO - CUN
1 stop7h 16mDelta
Deal found 9/16$301
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:45 amCUN - SFO
1 stop11h 35mAmerican Airlines
Tue 12/96:00 amSFO - CUN
2 stops8h 54mAmerican Airlines
Deal found 9/15$302
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:50 pmCUN - SFO
Nonstop6h 03mUnited Airlines
Thu 12/1111:59 pmSFO - CUN
1 stop17h 19mUnited Airlines
Deal found 9/16$304
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:53 pmCUN - SFO
1 stop10h 42mDelta
Sun 11/169:30 pmSFO - CUN
2 stops12h 07mDelta
Deal found 9/17$307
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:28 pmCUN - SFO
1 stop8h 30mUnited Airlines
Tue 12/307:25 amSFO - CUN
1 stop9h 58mUnited Airlines
Deal found 9/16$310
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:00 amCUN - SFO
1 stop8h 55mDelta
Sat 11/810:57 pmSFO - CUN
1 stop12h 03mDelta
Deal found 9/17$312

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cancún to San Francisco 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 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Cancún to San Francisco that are best for you.

Fly from

Cancún

Fly to

San Francisco

Route

Depart

Return

Price

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 10/16

1:04 pm-4:51 pm

Nonstop5h 47m

San Francisco

Mon 10/20

7:05 pm-12:33 pm

1 stop15h 28m

$283

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 11/12

8:39 am-4:47 pm

1 stop11h 08m

San Francisco

Sun 11/16

11:59 pm-12:54 pm

1 stop9h 55m

$288

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 11/6

6:30 am-12:10 pm

1 stop8h 40m

San Francisco

Sun 11/9

7:16 am-5:50 pm

1 stop7h 34m

$288

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 11/6

6:30 am-12:10 pm

1 stop8h 40m

San Francisco

Tue 11/11

7:16 am-5:50 pm

1 stop7h 34m

$288

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Fri 12/5

5:50 pm-8:53 pm

Nonstop6h 03m

San Francisco

Thu 12/11

11:59 pm-8:18 pm

1 stop17h 19m

$304

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sun 12/21

4:30 pm-7:33 pm

Nonstop6h 03m

San Francisco

Tue 12/30

6:00 am-4:46 pm

1 stop7h 46m

$304

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Fri 11/7

2:53 pm-10:35 pm

1 stop10h 42m

San Francisco

Sun 11/16

9:30 pm-12:37 pm

2 stops12h 07m

$307

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sat 11/1

6:00 am-12:55 pm

1 stop8h 55m

San Francisco

Sat 11/8

10:57 pm-2:00 pm

1 stop12h 03m

$312

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sat 11/8

2:58 pm-10:30 pm

1 stop10h 32m

San Francisco

Sun 11/9

12:45 am-2:10 pm

1 stop10h 25m

$319

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sun 10/26

5:30 pm-6:47 pm

1 stop27h 17m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 20 results
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The best insider tips for Cancún to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Cancún to San Francisco trip
Airports
CUN

CUN's terminals are crowded, so arrive early to navigate security and find seating. Consider pre-booking airport transfers to avoid taxi scams.

Read more about CUNby Ramsey Qubein
SFO

For a budget-friendly trip from SFO to downtown, use BART. It takes about 40 minutes and is the least expensive option.

Read more about SFOby Harriet Baskas
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on CUN

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Cancún to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Cancún 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 Cancún to San Francisco

How far ahead should I book a flight from Cancún to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Cancún to San Francisco. Price data was last updated on September 12, 2025.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Cancún to San Francisco. 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 Cancún to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Cancún to San Francisco (average of $276). Flying from Cancún to San Francisco in June is currently the most expensive (average of $357). 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 CUN to SFO?

Find hourly flight availability from Cancún to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s optimal to fly from Cancún to San Francisco in the morning. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Cancún to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Cancún to San Francisco. Price data was last updated on March 23, 2025.

Travelers seeking maximum savings on their Cancún to San Francisco flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Viva from Cancún to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Viva
7.0
Good
787 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Cancún to San Francisco. 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 Cancún to San Francisco?

    San Francisco is the airport most travelers will use when flying to San Francisco from Cancun. Booking flights from Cancun (CUN) to San Francisco (SFO) should be relatively easy as there is 1 daily flight to San Francisco from 3 different airlines. 5h 47m is how long a flight from Cancún to San Francisco will take if you book a nonstop flight.

  • How popular is this Cancún to San Francisco flight route?

    Flights from Cancun to San Francisco have been viewed 5 times in the past calendar month.

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

    There are many flights that can get you from Cancún to San Francisco in 5h 47m. Fly via United Airlines to get the fastest option. There are 2404 mi between Cancún and San Francisco. All flights are typically nonstop.

  • What are the cheapest airlines flying from Cancún to San Francisco round-trip?

    Flying on Viva is currently your cheapest option to San Francisco, with prices starting at $184. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $290 and $309, respectively. You may be able to fly from Cancún to San Francisco for 62% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Cancún to San Francisco are United Airlines ($234), Alaska Airlines ($234), and Frontier ($235).

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

    On average you can expect to pay $962 for a flight from Cancún to San Francisco. The cheapest flight overall is $177 while the most popular route, (Cancun - San Francisco) is currently priced at $276.

  • Can I find deals for flights from Cancún to San Francisco that include hotel bookings?

    Yes. In addition to deals on Cancún to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cancún to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cancún to San Francisco.

  • Can I find deals for business class flights from Cancún to San Francisco?

    Yes. Cheapflights offers flight deals from Cancún to San Francisco 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 Cancún to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Cancún to San Francisco (average of $276). Flying from Cancún to San Francisco in June is currently the most expensive (average of $357). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Santa Clara
Manteca
Sunnyvale
Hollister
Vacaville
Foster City
Union City
Vallejo
Burlingame
Redwood City
San Mateo
San Leandro
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Cancún to San Francisco

Discover the top 3 airlines that operate flights from Cancún to San Francisco. 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
VivaCheapest$184Average$226FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$290Average$404FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$309Average$539FlexibilityNo cancel feeOn-time69%

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