$205+ Cheap flights from Cancún (CUN) to San Francisco (SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — SFO
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Cancún to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Cancun to San Francisco are usually found in February or January, booked 73 days in advance, depart on a Wednesday or Friday and return on a Monday
Cheap flight deals from Cancún to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Cancún to San FranciscoExplore 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 10, 2026.
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 10, 2026.
This Frontier deal was found by Cheapflights users on 9/6. 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 10/229:55 am -
1 stop14h 30m
Fri 10/3010:17 pm -
1 stop12h 24m
Deal found 9/6![Frontier logo]()
$345
This Frontier deal was found by Cheapflights users on 9/9. 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.
Sat 10/109:55 am -
1 stop14h 30m
Sat 10/3110:05 pm -
1 stop13h 36m
Deal found 9/9![Frontier logo]()
$352
This Expedia deal was found by Cheapflights users on 9/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:55 am -
1 stop14h 30m
Thu 10/1510:14 pm -
1 stop12h 27m
Deal found 9/7![Frontier logo]()
$361
This Air Canada deal was found by Cheapflights users on 9/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 am -
1 stop17h 57m
Tue 11/172:45 pm -
1 stop13h 15m
Deal found 9/8![Air Canada logo]()
$376
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:00 am -
1 stop11h 06m
Mon 11/232:45 pm -
1 stop13h 15m
Deal found 9/9![Air Canada logo]()
$377
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:00 am -
1 stop17h 57m
Sat 11/2811:25 am -
1 stop16h 35m
Deal found 9/9![Air Canada logo]()
$378
This Air Canada deal was found by Cheapflights users on 9/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 am -
1 stop17h 57m
Mon 11/168:25 am -
1 stop25h 35m
Deal found 9/8![Air Canada logo]()
$380
This Frontier deal was found by Cheapflights users on 9/8. 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.
Fri 10/239:55 am -
1 stop14h 30m
Fri 10/3010:17 pm -
1 stop12h 24m
Deal found 9/8![Frontier logo]()
$393
This Air Canada deal was found by Cheapflights users on 9/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:35 pm -
1 stop22h 16m
Sat 12/52:45 pm -
1 stop13h 15m
Deal found 9/7![Air Canada logo]()
$400
Best flights from Cancún to San FranciscoDiscover carefully curated flight deals from Cancún to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Cancún to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 12/21:37 pm -
2 stops11h 52m
Sun 12/611:48 pm -
2 stops11h 27m
Deal found 9/8![Delta logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/2312:57 pm -
Nonstop5h 43m
Fri 10/304:40 pm -
1 stop15h 45m
Deal found 9/7![United Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 12/238:15 am -
1 stop11h 03m
Wed 12/306:59 pm -
1 stop9h 06m
Deal found 9/9![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 9/5. 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 12/96:05 pm -
Nonstop6h 03m
Sat 1/210:38 am -
Nonstop5h 17m
Deal found 9/5![United Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 9/9. 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 11/196:04 am -
1 stop8h 34m
Fri 11/275:50 am -
1 stop7h 15m
Deal found 9/9![Delta logo]()
$441
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/2412:57 pm -
Nonstop5h 43m
Sun 9/2712:45 am -
1 stop7h 21m
Deal found 9/6![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/297:51 am -
1 stop8h 58m
Mon 10/511:59 pm -
1 stop10h 34m
Deal found 9/6![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/8. 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 12/241:45 pm -
Nonstop6h 07m
Thu 12/315:00 am -
1 stop8h 06m
Deal found 9/8![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/251:45 pm -
Nonstop6h 07m
Thu 12/3111:30 pm -
1 stop9h 53m
Deal found 9/7![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/9. 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 12/235:12 pm -
Nonstop6h 07m
Sun 12/2711:59 pm -
1 stop14h 51m
Deal found 9/9![United Airlines logo]()
$560
Last-minute flights from Cancún to San FranciscoDiscover last-minute flight deals from Cancún to San Francisco. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Cancún to San Francisco. Data last updated September 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 9/307:01 am -
1 stop16h 09m
Sun 10/411:30 pm -
1 stop18h 20m
Deal found 9/8![Delta logo]()
$431
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:51 pm -
1 stop31h 57m
Sun 10/410:05 pm -
1 stop12h 32m
Deal found 9/8![Frontier logo]()
$423
This Frontier deal was found by Cheapflights users on 9/9. 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.
Sat 10/109:55 am -
1 stop14h 30m
Sat 10/3110:05 pm -
1 stop13h 36m
Deal found 9/9![Frontier logo]()
$352
This Expedia deal was found by Cheapflights users on 9/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:55 am -
1 stop14h 30m
Thu 10/1510:14 pm -
1 stop12h 27m
Deal found 9/7![Frontier logo]()
$361
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:20 pm -
1 stop19h 00m
Sun 10/252:45 pm -
1 stop23h 25m
Deal found 9/9![Air Canada logo]()
$434
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:30 pm -
1 stop33h 17m
Wed 10/284:55 pm -
1 stop21h 15m
Deal found 9/6![Air Canada logo]()
$436
This Frontier deal was found by Cheapflights users on 9/6. 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 10/229:55 am -
1 stop14h 30m
Fri 10/3010:17 pm -
1 stop12h 24m
Deal found 9/6![Frontier logo]()
$345
This Frontier deal was found by Cheapflights users on 9/8. 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.
Fri 10/239:55 am -
1 stop14h 30m
Fri 10/3010:17 pm -
1 stop12h 24m
Deal found 9/8![Frontier logo]()
$393
This Frontier deal was found by Cheapflights users on 9/9. 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.
Sat 10/249:55 am -
1 stop14h 30m
Sat 10/3110:05 pm -
1 stop13h 36m
Deal found 9/9![Frontier logo]()
$410
One-way flights from Cancún to San FranciscoSearch for one-way flight options from Cancún to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Cancún to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Frontier deal was found by Cheapflights users on 9/6. 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.
Fri 10/239:55 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$205
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 11/2411:46 am -
1 stop10h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$210
This Trip.com deal was found by Cheapflights users on 9/6. 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 11/208:00 am -
1 stop32h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Air Canada logo]()
$212
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Thu 10/229:55 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$213
This Trip.com deal was found by Cheapflights users on 9/5. 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.
Thu 10/155:20 pm -
1 stop27h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Air Canada logo]()
$214
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Sun 11/228:00 am -
1 stop32h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Air Canada logo]()
$215
This Super.com deal was found by Cheapflights users on 9/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:55 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$216
This Trip.com deal was found by Cheapflights users on 9/5. 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.
Mon 10/1910:00 am -
1 stop27h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Air Canada logo]()
$217
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:55 am -
1 stop14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$220
This FlightHub deal was found by Cheapflights users on 9/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:51 pm -
1 stop30h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$221
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/265:10 pm -
1 stop24h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Air Canada logo]()
$222
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $345 (Frontier) |
One-way from | $205 (Frontier) |
Popular in | August |
Cheapest in | February |
Average price | $480 |
Good one-way deal | $293 or less |
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 7,457,451 searches. Data last updated September 10, 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
Cheapest round-trip
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Thu 10/1
6:04 am-9:10 pm
1 stop17h 06m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$251
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Wed 11/4
1:45 pm-4:52 pm
Nonstop6h 07m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$253
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Sat 11/14
11:47 am-12:12 am
1 stop15h 25m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$256
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Tue 3/2
5:40 pm-12:07 am
1 stop9h 27m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$257
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Wed 12/23
7:00 am-2:33 pm
1 stop10h 33m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$257
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Wed 11/25
8:39 am-5:10 pm
1 stop11h 31m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$258
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Sat 11/21
6:45 pm-9:51 pm
Nonstop6h 06m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$260
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Sat 10/17
6:04 am-1:20 pm
1 stop9h 16m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$261
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Tue 1/12
9:40 am-4:30 pm
2 stops9h 50m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$266
Quickest round-trip
CancúnSan Francisco
CUN Cancun - SFO San Francisco
CUNSFO
Cancun
Wed 10/21
12:57 pm-4:40 pm
Nonstop5h 43m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$266
Showing 1-10 of 22 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
CUN-SFO
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
Prices
Airlines
Delays
How far ahead should I book a flight from Cancún to San Francisco?
Booking 19 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 $326). Flying from Cancún to San Francisco in August is currently the most expensive (average of $663). 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 10, 2026.
It’s optimal to fly from Cancún to San Francisco in the evening. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the afternoon.
How often are flights from Cancún to San Francisco delayed?
About 16% of weekly flights between Cancún and San Francisco have experienced delays in the past year, with the average delay time being 171 minutes.
What is the most punctual flight time for Cancún to San Francisco flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Cancún to San Francisco flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.
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
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 10, 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.
Entertainment
7.1
Comfort
7.3
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Entertainment
7.1
Comfort
7.3
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
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.
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$433 | FlexibilityNo cancel fee | On-time69% |