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$208+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SFO
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
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 Thursday and return on a Monday

Cheap 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 March 17, 2026.

This Frontier deal was found by Cheapflights users on 3/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/313:54 pm
CUN
-
SFO
1 stop10h 34m
Frontier
Thu 4/99:05 pm
SFO
-
CUN
1 stop12h 19m
Frontier
Deal found 3/15$317
This Flightnetwork deal was found by Cheapflights users on 3/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:07 pm
CUN
-
SFO
1 stop27h 27m
Frontier
Wed 5/612:52 pm
SFO
-
CUN
1 stop21h 12m
Frontier
Deal found 3/15$327
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:07 pm
CUN
-
SFO
1 stop27h 27m
Frontier
Mon 5/46:00 am
SFO
-
CUN
1 stop28h 04m
Frontier
Deal found 3/12$328
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/264:07 pm
CUN
-
SFO
1 stop27h 27m
Frontier
Sun 5/310:38 pm
SFO
-
CUN
1 stop14h 18m
Frontier
Deal found 3/12$330
This Frontier deal was found by Cheapflights users on 3/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:04 pm
CUN
-
SFO
1 stop12h 27m
Frontier
Mon 4/2010:38 pm
SFO
-
CUN
1 stop14h 18m
Frontier
Deal found 3/13$337
This Frontier deal was found by Cheapflights users on 3/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:04 pm
CUN
-
SFO
1 stop12h 27m
Frontier
Tue 4/2810:38 pm
SFO
-
CUN
1 stop14h 18m
Frontier
Deal found 3/14$340
This Gotogate deal was found by Cheapflights users on 3/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:07 pm
CUN
-
SFO
1 stop27h 27m
Frontier
Tue 5/510:40 pm
SFO
-
CUN
2 stops35h 24m
Frontier
Deal found 3/14$341
This Flightnetwork deal was found by Cheapflights users on 3/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:07 pm
CUN
-
SFO
1 stop27h 27m
Frontier
Mon 4/271:12 pm
SFO
-
CUN
2 stops21h 30m
Frontier
Deal found 3/15$359
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Thu 4/1612:04 pm
CUN
-
SFO
1 stop12h 27m
Frontier
Sat 4/187:40 pm
SFO
-
CUN
2 stops14h 21m
Frontier
Deal found 3/16$362

Find 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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$317
(Frontier)

One-way from

$208
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$468

Good round-trip deal

$703 or less

Good one-way deal

$310 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. 16% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 17, 2026.
Use the filters below to find and compare flights from Cancún to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 4/15

8:06 am-10:25 pm

1 stop16h 19m

San Francisco

Wed 4/29

9:00 pm-1:00 pm

2 stops14h 00m

$432

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 4/16

5:01 pm-8:49 pm

Nonstop5h 48m

San Francisco

Mon 4/20

8:46 am-4:12 pm

Nonstop5h 26m

$432

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 9/9

2:33 pm-8:58 pm

1 stop8h 25m

San Francisco

Wed 9/23

11:19 pm-11:13 am

1 stop9h 54m

$437

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 9/9

12:57 pm-4:40 pm

Nonstop5h 43m

San Francisco

Wed 9/23

6:28 pm-12:58 pm

1 stop16h 30m

$453

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Fri 4/24

5:01 pm-8:49 pm

Nonstop5h 48m

San Francisco

Sun 4/26

12:45 am-2:26 pm

1 stop11h 41m

$456
Quickest round-trip

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Thu 4/23

12:57 pm-4:47 pm

Nonstop5h 50m

San Francisco

Mon 5/4

11:27 pm-6:48 am

Nonstop5h 21m

$456
Cheapest one-way

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Wed 7/15

6:03 am-12:42 pm

1 stop8h 39m

$252

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sun 6/7

11:10 am-10:25 pm

1 stop13h 15m

$253

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Mon 6/22

9:15 am-10:25 pm

1 stop15h 10m

$253

CancúnSan Francisco

CUN - SFO

CUNSFO

Cancun

Sat 4/18

6:51 am-4:51 pm

2 stops12h 00m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 17 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cancún-San Francisco flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

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 $280). Flying from Cancún to San Francisco in June is currently the most expensive (average of $542). 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 March 17, 2026.

It’s optimal to fly from Cancún to San Francisco in the evening. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

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 Friday mornings when fares are most often at their lowest. Saturday afternoons 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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Cancún to San Francisco trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on SFO

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

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 March 17, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,431 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,431 reviews
United Airlines
7.4
Good
9,431 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 1 airline. 5h 43m 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 1 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 48m. 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 is the cheapest airline to fly from Cancún to San Francisco round-trip?

    Flying on United Airlines is currently your cheapest option to San Francisco, with prices starting at $280. You may be able to fly from Cancún to San Francisco for 40% less than the average price by searching for this airline.

  • 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 Viva ($122), Delta ($186), and Volaris ($187).

  • 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 (56%), Alaska Airlines (56%) and Hawaiian Airlines (56%).

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

    On average you can expect to pay $707 for a flight from Cancún to San Francisco. The cheapest flight overall is $255 while the most popular route, (Cancun - San Francisco) is currently priced at $412.

  • 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 $280). Flying from Cancún to San Francisco in June is currently the most expensive (average of $542). 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
South San Francisco
Santa Clara
Santa Cruz
Livermore
Roseville
Watsonville
Rancho Cordova
San Bruno
San Ramon
Sunnyvale
Vacaville
San Carlos
Redwood City
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove
Rohnert Park

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Cancún to San Francisco

Discover the top airline 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$280Average$491FlexibilityNo cancel feeOn-time69%

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