CUN - SFO

$198 Find Cheap Flights from Cancún to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cancún to San Francisco departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cancún to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cancún to San Francisco, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$275
Overall average: $326
Frontier
Sat 2/28Wed 3/4
CUN - SFO • 1 stop
Cheapest non-stop
$329
Typical prices: $434-$538
United Airlines
Tue 3/10Sun 3/15
CUN - SFO • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Alaska Airlines offers a 20-minute baggage guarantee.
Security lines at CUN are short and move quickly.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $275 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 5% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 31% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cancún to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cancún to San Francisco

Sat, Feb 28 - Wed, Mar 4
Frontier Logo
10:16 am - 10:21 pm
CUN
-
SFO
15h 05m
1 stop
Frontier Logo
7:35 am - 6:09 pm
SFO
-
CUN
7h 34m
1 stop
$275Frontier
Wed, Mar 11 - Sat, Mar 14
Multiple Airlines Logo
9:53 am - 12:28 am
CUN
-
SFO
16h 35m
1 stop
Multiple Airlines Logo
8:09 pm - 1:37 pm
SFO
-
CUN
15h 28m
2 stops
$276Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
10:01 am - 9:39 pm
CUN
-
SFO
14h 38m
1 stop
Frontier Logo
8:18 pm - 6:09 pm
SFO
-
CUN
18h 51m
2 stops
$292Frontier
Tue, Mar 10 - Sat, Mar 14
Multiple Airlines Logo
9:53 am - 8:09 pm
CUN
-
SFO
12h 16m
1 stop
Multiple Airlines Logo
8:09 pm - 1:37 pm
SFO
-
CUN
15h 28m
2 stops
$294Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
10:01 am - 9:39 pm
CUN
-
SFO
14h 38m
1 stop
Frontier Logo
8:18 pm - 6:09 pm
SFO
-
CUN
18h 51m
2 stops
$301Frontier
Wed, Mar 11 - Tue, Mar 17
Frontier Logo
9:53 am - 12:28 am
CUN
-
SFO
16h 35m
1 stop
Frontier Logo
9:04 pm - 4:17 pm
SFO
-
CUN
17h 13m
1 stop
$302Frontier
Tue, Mar 10 - Tue, Mar 17
Frontier Logo
9:53 am - 8:09 pm
CUN
-
SFO
12h 16m
1 stop
Frontier Logo
10:40 pm - 2:59 pm
SFO
-
CUN
14h 19m
1 stop
$303Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
10:01 am - 9:39 pm
CUN
-
SFO
14h 38m
1 stop
Frontier Logo
6:15 am - 5:17 pm
SFO
-
CUN
8h 02m
1 stop
$304Frontier
Sat, Feb 28 - Wed, Mar 4
Frontier Logo
10:16 am - 10:21 pm
CUN
-
SFO
15h 05m
1 stop
Frontier Logo
7:15 pm - 1:49 pm
SFO
-
CUN
15h 34m
2 stops
$311Frontier
Mon, Mar 9 - Wed, Mar 18
Frontier Logo
10:08 am - 8:09 pm
CUN
-
SFO
12h 01m
1 stop
Frontier Logo
6:00 am - 4:17 pm
SFO
-
CUN
8h 17m
1 stop
$313Frontier
Booking Insights

KAYAK's insights & trends for Cancún to San Francisco flights

Get data-powered insights and trends into flights from Cancún to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Cancun to San Francisco?

The average price of all round-trip flights from Cancún to San Francisco clicked on KAYAK for each day over the last 12 months.

For Cancun to San Francisco, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Francisco back to Cancun, the best deals are generally found on Monday, with Thursday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cancún to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cancún to San Francisco is February, where tickets cost $326 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $626 and $539 respectively.

Can I save money by flying with a layover from Cancún to San Francisco?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $407, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cancún to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Cancún to San Francisco, you should book around 2 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from Cancún to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines

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.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Brandon Schultz

Brandon Schultz

Expert on CUN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low seasonOctober
Cheapest flight$198
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from Cancun to San Francisco

When to book flights from Cancún to San Francisco

Are your dates flexible? Find out the best times to travel from Cancún to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cancun to San Francisco

  • What is the cheapest flight from Cancún to San Francisco?

    In the last 3 days, the lowest price for a flight from Cancún to San Francisco was $198 for a one-way ticket and $275 for a round-trip.

  • Do I need a passport to fly between Cancun and San Francisco?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Cancun and on arrival in San Francisco.

  • Which airports will I be using when flying from Cancun to San Francisco?

    Cancun and San Francisco are both served by 1 main airport. You will leave Cancun from Cancun and will be arriving at San Francisco.

  • Which airlines offer Wi-Fi service onboard planes from Cancun to San Francisco?

    American Airlines, Delta, Aeromexico, Air Canada, and Alaska Airlines offer inflight Wi-Fi service on the Cancun to San Francisco flight route.

  • Which aircraft models fly most regularly from Cancun to San Francisco?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Cancun to San Francisco flight route.

  • Which airline alliances offer flights from Cancun to San Francisco?

    Star Alliance is the only airline alliance operating flights between Cancun and San Francisco.

  • On which days can I fly direct from Cancun to San Francisco?

    There are nonstop flights from Cancun to San Francisco on a daily basis.

  • How does KAYAK find such low prices on flights from Cancun to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cancun to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cancun to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Cancun is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cancun to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Cancun with another airline. Booking your flights between Cancun and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cancun to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Cancun up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Cancún to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $299 or less one-way and $350 or less round-trip.

Prefer to fly direct from Cancun to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Cancun to San Francisco.
Find which airlines fly direct from Cancun Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Cancun to San Francisco

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

San Francisco to Cancun

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

Alaska Airlines, United Airlines

Alaska Airlines, United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Cancún to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Cancún to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cancún to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9269 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

10.0 ExcellentJanaki, Feb 2026
PDX - SFO
Read more United Airlines reviews

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Everything you need to know for your flight from Cancún to San Francisco

Information on your arrival and departure airports