Currently, the most affordable month to book a Air Canada flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in January, with an average price of C$ 261. Conversely, traveling with Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Chicago in August will be the most expensive, with an average cost of C$ 440. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 356
February
C$ 414
March
C$ 441
April
C$ 454
May
C$ 477
June
C$ 550
July
C$ 591
August
C$ 599
September
C$ 466
October
C$ 508
November
C$ 460
December
C$ 475
CHI Temperature | -5 - 23 °C |
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If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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