Currently, the most affordable month to book a United Airlines flight from Montreal Pierre Elliott Trudeau Intl Airport to Guatemala City in October, with an average price of C$ 446. 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$ 703
March
C$ 698
April
C$ 641
May
C$ 630
June
C$ 647
July
C$ 825
August
C$ 699
September
C$ 622
October
C$ 611
November
C$ 730
December
C$ 906
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