AirHint found the following cheapest one-way flights from Antigua (ANU) to Castries (SLU) in August 2025 (see full year).

One-Way flights

08 Aug	Hahn Air Technologies	direct
04 Aug	Sunrise Airways	direct
07 Aug	Sunrise Airways	direct
01 Aug	Sunrise Airways	direct
09 Aug	Sunrise Airways	direct
05 Aug	Air Turks and Caicos
06 Aug	Air Turks and Caicos
26 Aug	Air Turks and Caicos
26 Aug	Hahn Air Technologies	direct

Also check the deals for return flights from Antigua to Castries in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from Antigua to Castries in August from $207

One-Way flights