How the cheapest fare moved
Sep 28: €206 €206
Sep 27
Sep 28
low €206 · high €317
Departure-day prices · September 2026 San Francisco → Cancun
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29 €321 30 €322 Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · September 2026 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: Apr — fares from €191 and ~29°C daytime.
Flights from San Francisco to Cancun start around €191 (typically 1 stop). Range seen recently: €191–343, based on 8 fares found by travellers.
Fly (from €191)
6h 22m duration
€191–343 recent fares
Book
Cheapest cached fares San Francisco → Cancun; typically 1 stop (e.g. AM). · Based on 8 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 21 – Jan 11
Southwest Airlines · 2 stops · 6h 55m
€254
Book
Dec 7 – Dec 10
Air Canada · 1 stop · 8h 03m
€370
Book
Nov 26 – Dec 1
Air Canada · 1 stop · 8h 18m
€377
Book
May 24 – Jul 8
Aeromexico · 1 stop · 6h 58m
€416
Book
Nov 2 – Nov 4
Frontier Airlines · 2 stops · 7h 40m
€442
Book
Dec 24 – Jan 3
Southwest Airlines · 2 stops · 6h 30m
€666
Book
Weather in Cancun
Mon
⛈️
30°
24°
💧96%
Tue
⛈️
30°
25°
💧100%
Wed
⛈️
29°
24°
💧92%
Thu
⛈️
29°
23°
💧93%
Fri
⛈️
27°
24°
💧91%
Sat
⛈️
30°
25°
💧97%
Sun
🌦️
29°
26°
💧91%
In Sep, Cancun typically sees ~32°C daytime highs and 26 rainy days.
Where to stay in Cancun 3★+ hotels from €70/night (36 hotels sampled, ~3 weeks out).
Adhara Hacienda Cancun
hotel · Cancun
from €70/night ★ 4
Fairfield Inn & Suites by Marriott Cancun Airport
hotel · Cancun
from €80/night ★ 4
Hilton Garden Inn Cancun Airport
hotel · Cancun
from €93/night ★ 4
Good to know Time difference +2h
Time in the air 6h 30m
Things to do in Cancun Top-rated tours and tickets from €102 — 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 2026-09-29. Some links earn Stayonomy a commission at no cost to you.
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