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Cheapest one-way flights from Castries (SLU) to Cancun (CUN), December

6 dates in December, from $ 455. Book in one tap, or check whether to buy now or wait.

One-way Return

Dates, airline, and price
Dates	Airline	Price
10 Dec	jetBlue
11 Dec	Air Canada
13 Dec	Air Canada

14 Dec	jetBlue
12 Dec	WestJet
27 Dec	WestJet

Cheapest deals for the full year

Deals for return flights from Castries to Cancun in December.

Book a cheap hotel in Cancun

Cheap car rent in Cancun Intl

Updated Oct 11, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Castries (SLU) to Cancun (CUN), December

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