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$221+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SFO
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheapflights Tip: The best prices from Cancun to San Francisco are usually found in February or January, booked 63 days in advance, depart on a Wednesday or Friday and return on a Tuesday

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 November 18, 2025.

This United Airlines deal was found by Cheapflights users on 11/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:35 pmCUN - SFO
Nonstop6h 03mUnited Airlines
Sun 12/2810:43 amSFO - CUN
Nonstop5h 12mUnited Airlines
Deal found 11/17$321
This Delta deal was found by Cheapflights users on 11/17. 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.
Sun 11/238:00 amCUN - SFO
1 stop15h 56mDelta
Mon 12/19:30 pmSFO - CUN
1 stop15h 03mDelta
Deal found 11/17$328
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/214:30 pmCUN - SFO
Nonstop6h 03mUnited Airlines
Sun 12/2811:01 pmSFO - CUN
Nonstop5h 12mUnited Airlines
Deal found 11/18$351
This United Airlines deal was found by Cheapflights users on 11/16. 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.
Sat 12/135:50 pmCUN - SFO
Nonstop6h 03mUnited Airlines
Tue 12/165:00 amSFO - CUN
1 stop9h 50mUnited Airlines
Deal found 11/16$352
This United Airlines deal was found by Cheapflights users on 11/16. 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.
Wed 12/317:41 amCUN - SFO
1 stop15h 01mUnited Airlines
Sat 1/312:30 amSFO - CUN
1 stop10h 04mUnited Airlines
Deal found 11/16$358
This Vliegwinkel deal was found by Cheapflights users on 11/17. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/235:50 pmCUN - SFO
Nonstop6h 10mMultiple Airlines
Mon 12/18:27 amSFO - CUN
Nonstop5h 13mMultiple Airlines
Deal found 11/17$372
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:50 pmCUN - SFO
Nonstop6h 10mHawaiian Airlines
Sun 11/308:27 amSFO - CUN
Nonstop5h 13mHawaiian Airlines
Deal found 11/16$375
This Delta deal was found by Cheapflights users on 11/18. 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 12/136:00 amCUN - SFO
2 stops14h 56mDelta
Wed 12/176:00 amSFO - CUN
1 stop9h 00mDelta
Deal found 11/18$389
This United Airlines deal was found by Cheapflights users on 11/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:37 pmCUN - SFO
1 stop20h 53mUnited Airlines
Tue 1/67:10 pmSFO - CUN
1 stop14h 44mUnited Airlines
Deal found 11/17$394

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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$320
(Delta)

One-way from

$221
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$483

Good round-trip deal

$281 or less

Good one-way deal

$253 or less
Provider with most accurate pricing for Cancun-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cancun-San Francisco flights.
Search Deals
From Cancun to San Francisco
Search Deals
One-way flight from Cancun to San Francisco
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Cancun to San Francisco.
Search Deals
Price to beat on a one-way flight from Cancun to San Francisco.
Search Deals

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 November 18, 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

Fri 1/16

6:01 am-11:51 am

1 stop8h 50m

San Francisco

Mon 1/19

10:30 pm-1:47 pm

1 stop12h 17m

$320

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Fri 1/16

1:35 pm-4:38 pm

Nonstop6h 03m

San Francisco

Mon 1/19

8:59 am-5:20 pm

Nonstop5h 21m

$320

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 2/12

1:35 pm-4:38 pm

Nonstop6h 03m

San Francisco

Sun 2/15

11:59 pm-11:25 am

1 stop8h 26m

$321

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Tue 12/23

5:50 pm-8:53 pm

Nonstop6h 03m

San Francisco

Sun 12/28

11:01 pm-7:13 am

Nonstop5h 12m

$321

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sun 12/21

4:30 pm-7:33 pm

Nonstop6h 03m

San Francisco

Sun 12/28

11:01 pm-7:13 am

Nonstop5h 12m

$351

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 2/4

5:50 pm-8:53 pm

Nonstop6h 03m

San Francisco

Sat 2/21

8:59 am-5:20 pm

Nonstop5h 21m

$352

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sat 12/13

6:30 am-12:09 pm

1 stop8h 39m

San Francisco

Tue 12/16

5:00 am-5:50 pm

1 stop9h 50m

$358

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 12/31

7:41 am-7:42 pm

1 stop15h 01m

San Francisco

Mon 1/5

8:00 pm-7:29 am

1 stop8h 29m

$358

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sat 12/20

9:00 am-7:38 am

1 stop25h 38m

$222

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sun 1/18

4:18 am-12:38 pm

2 stops35h 20m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 20 results
1
2

Compare providers for flights from Cancún to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cancún to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cancún-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cancún-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Cancún-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cancún-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cancún-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 14, 2025.

Booking 63 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, February is the cheapest month in which you can book a flight from Cancún to San Francisco (average of $232). Flying from Cancún to San Francisco in June is currently the most expensive (average of $516). 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 November 18, 2025.

It’s optimal to fly from Cancún to San Francisco in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the afternoon.

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 mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 November 18, 2025.
Read reviews from past customers who have flown Delta and United Airlines 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
7.9
Good
8,003 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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
7.9
Good
8,003 reviews
Delta
7.9
Good
8,003 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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
9,019 reviews
Delta
7.9
Good
8,003 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

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 are 2 daily flights to San Francisco from 2 different airlines. 5h 45m 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 6h 03m. Fly via Delta or United Airlines to get the fastest option. There are 2404 mi between Cancún and San Francisco. This flight may include one or multiple stops.

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

    Flying on United Airlines is currently your cheapest option to San Francisco, with prices starting at $280. Another option worth looking into is Delta, starting at $290 round trip. You may be able to fly from Cancún to San Francisco for 41% 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 Alaska Airlines ($222), United Airlines ($226), and JetBlue ($226).

  • What are the most reliable airlines from Cancún to San Francisco?

    The top 3 most reliable airlines when flying from Cancún to San Francisco are American Airlines (100%), Alaska Airlines (100%) and Hawaiian Airlines (100%).

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

    On average you can expect to pay $716 for a flight from Cancún to San Francisco. The cheapest flight overall is $176 while the most popular route, (Cancun - San Francisco) is currently priced at $314.

  • 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, February is the cheapest month in which you can book a flight from Cancún to San Francisco (average of $232). Flying from Cancún to San Francisco in June is currently the most expensive (average of $516). 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
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
Redwood City
Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Cancún to San Francisco

Discover the top 2 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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$280Average$466FlexibilityNo cancel feeOn-time69%
DeltaCheapest$290Average$404FlexibilityNo cancel feeOn-timeN/A

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