Departure-day prices · December 2018 San Francisco → Cancun
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Return-day prices · December 2018 Cancun → San Francisco
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Best time to visit Cancun — climate Jan: ~27°C daytime, 13 rainy days
27°
Jan Feb: ~28°C daytime, 9 rainy days
28°
Feb Mar: ~29°C daytime, 9 rainy days
29°
Mar Apr: ~29°C daytime, 5 rainy days
29°
Apr May: ~31°C daytime, 8 rainy days
31°
May Jun: ~31°C daytime, 24 rainy days
31°
Jun Jul: ~32°C daytime, 20 rainy days
32°
Jul Aug: ~32°C daytime, 26 rainy days
32°
Aug Sep: ~32°C daytime, 26 rainy days
32°
Sep Oct: ~30°C daytime, 22 rainy days
30°
Oct Nov: ~28°C daytime, 20 rainy days
28°
Nov Dec: ~28°C daytime, 13 rainy days
28°
Dec Best value: May — fares from €183 and ~31°C daytime.
Flights from San Francisco to Cancun start around €183 (typically 1 stop). Range seen recently: €183–183, based on 1 fares found by travellers.
Fly (from €183)
7h 02m duration
€183–183 recent fares
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Cheapest cached fares San Francisco → Cancun; typically 1 stop (e.g. AM). · Based on 1 fares found by travellers in the last 48h
Cheapest round trips to Cancun Fares found by travellers in the last 48 hours — refreshed daily.
Dec 7 – Dec 10
American Airlines · 1 stop · 6h 22m
€331
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Nov 26 – Dec 3
Air Canada · 1 stop · 9h 09m
€393
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Nov 3 – Nov 9
Aeromexico · 1 stop · 7h 06m
€397
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May 24 – Jul 8
Aeromexico · 1 stop · 6h 58m
€413
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May 25 – Jul 8
Aeromexico · 1 stop · 6h 55m
€413
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Dec 16 – Dec 27
Frontier Airlines · 2 stops · 10h 18m
€419
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Dec 6 – Dec 19
Air Canada · 1 stop · 8h 02m
€426
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Sep 18 – Sep 23
Volaris · 1 stop · 6h 32m
€485
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Weather in Cancun
Wed
⛈️
32°
25°
💧96%
Thu
⛈️
31°
25°
💧75%
Fri
⛈️
31°
25°
💧98%
Sat
⛈️
31°
24°
💧98%
Sun
⛈️
31°
23°
💧96%
Mon
🌧️
29°
23°
💧96%
Tue
⛈️
30°
23°
💧93%
In Dec, Cancun typically sees ~26°C daytime highs and 9 rainy days.
Good to know Time difference +2h
Time in the air 6h 22m
Things to do in Cancun Top-rated tours and tickets from €104 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
About Cancun
Cancún is a popular Caribbean tourist destination on the northeast tip of Mexico's Yucatán Peninsula, in Quintana Roo, which also is called the Mexican Caribbean. Next to 22 km (14 miles) of beaches, you'll find a wide variety of resorts, spas, clubs, and malls.
Read the full Cancun guide
Guide content from Wikivoyage contributors (CC BY-SA).
Popular from San Francisco Cheapest destinations travellers searched recently — refreshed daily.
Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo ; exchange rates: ECB reference. Data updated 2026-09-16. Some links earn Stayonomy a commission at no cost to you.