Currently, the most affordable month to book a WestJet flight from Toronto Pearson Intl Airport to Castries in December, with an average price of C$ 341. Conversely, traveling with WestJet from Toronto Pearson Intl Airport to Castries in July will be the most expensive, with an average cost of C$ 682. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 720
February
C$ 869
March
C$ 766
April
C$ 659
May
C$ 504
June
C$ 696
July
C$ 935
August
C$ 639
September
C$ 576
October
C$ 648
November
C$ 670
December
C$ 467
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