Currently, the most affordable month to book a United Airlines flight from Montreal Pierre Elliott Trudeau Intl Airport to Guatemala City in September, with an average price of C$ 430. Conversely, traveling with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Guatemala City in December will be the most expensive, with an average cost of C$ 661. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 640
February
C$ 706
March
C$ 699
April
C$ 627
May
C$ 625
June
C$ 646
July
C$ 819
August
C$ 699
September
C$ 591
October
C$ 611
November
C$ 725
December
C$ 908
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