ExceptionalNonstop · 1.5h
SFO to LASUnited States
Las Vegas
$61
usually $155
−61%
Most monthly lows $130–$295. Cheaper than every other month on record (5).
Flights · SFO → CUN
San Francisco to Cancún
Best fare, round trip
$337
−14%
below its usual $390
you keep $53
Found
- Depart
- Thu 18 Feb
- Return
- Mon 22 Feb
- Stay
- 4 nights
- Flight
- 1 stop · 6.5h
- Airline
American
Most of this route’s monthly lows fall between $357 and $446. The drop beats 36% of measured fares on the board, over 5 observed months.
Cached fare — the booking search re-prices live before you pay.
MexicoCancúnCaribbean blue, Mayan ruins, cenotes — the highest deal-frequency beach route in the Americas.Best windowDec–AprAirportsCancún (CUN)Every route into CancúnFare seasonality
When this route gets cheap.
Fares bottom out in February around $337 and peak in October near $630, 87% dearer, across the 5 months we track. The cheapest itinerary we are tracking makes one stop and takes about 6.5 hours outbound, on a 4-night trip — ticketed under American, which on a connecting fare need not operate every leg. At $337 for 3,874 km each way, that works out to about $43 per 1,000 km flown. That is about the $43 per 1,000 km typical of medium-haul fares here. For context, the middle fare among the 7 routes of similar length we watch out of San Francisco is $316. The best time to be in Cancún: Dec–Apr.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 8% lower than when tracking began on 8 Aug — $523 then versus $483 now, across 21 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $226, on 13 Oct.
Cached day-level data for this route is sparse — 9 of 107 days priced, from 69 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
Sunday 1 November: $532. Compare fares from this day.234567891011121314151617181920212223242526272829Monday 30 November: $446. Compare fares from this day.
December 2026
Tuesday 1 December: $357. Compare fares from this day.234567891011121314151617181920212223Thursday 24 December: $559. Compare fares from this day.Friday 25 December: $536. Compare fares from this day.262728293031
January 2027
12Sunday 3 January: $411. Compare fares from this day.Monday 4 January: $388. Compare fares from this day.56789Sunday 10 January: $483. Compare fares from this day.111213141516171819202122232425262728293031
Cached fares · checked 17 Oct 2026
Cheapest in Feb, around $337
14% below the $390 typical fare
$630Oct, above the usual price. Compare October fares.$446Nov, above the usual price. Compare November fares.$357Dec, below the usual price. Compare December fares.$388Jan ’27, around the usual price. Compare January fares.$337Feb, the cheapest month. Compare February fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, San Francisco to Cancún, from cached prices.
Route facts
- Airports
- SFO · Oakland (OAK) · San José (SJC) ↔ Cancún (CUN)
- Flight time
- ≈6.5 hours outbound
- Distance
- ≈3,874 km each way
- Typical price
- $390 round-trip (seasonal median)
- Airlines on the board
- American
- Itineraries
- Connections on current fares
- Best months to visit
- Dec–Apr
Good to know
SF → CUN, answered.
Is $337 a good price for San Francisco to Cancún?
Only slightly. The seasonal median is around $390 round-trip and this fare is 14% under it. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from San Francisco to Cancún?
Across 5 months of cached-fare history, Feb comes out cheapest on this route. The best months to actually be in Cancún are Dec–Apr — when those overlap, that's your window.
How far in advance should I book SF → Cancún?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 5 months of cached fares, Feb comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from San Francisco to Cancún?
The current cheapest fares involve a connection, ticketed under American. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Cancún?
Lock the flight first — then compare stays for 18–22 Feb '27 · 4 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SF → CUN drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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