Currently, the most affordable month to book a United Airlines flight from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in January, with an average price of C$ 274. Conversely, traveling with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to San Francisco in July will be the most expensive, with an average cost of C$ 430. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 374
February
C$ 381
March
C$ 488
April
C$ 447
May
C$ 492
June
C$ 496
July
C$ 588
August
C$ 551
September
C$ 499
October
C$ 508
November
C$ 539
December
C$ 500
SFO Temperature | 11 - 17 °C |
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If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).
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