Flights From Seattle (SEA) to Castries (SLU)

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Selected fares from Seattle to Castries

The cheapest prices found with in the last 7 days for return flights were CA $712 and CA $297 for one-way flights to Castries for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
JetBlue Airways

Save more with Castries Flight + Hotel packages

Price found within the past 48 hours. Click for updated prices.
Coco Palm
Ladera Resort - Adults Only
Caille Blanc Villa & Hotel - Adults Only
Bay Gardens Beach Resort and Spa
Bel Jou Hotel – Adults Only – All Inclusive
Zoetry Marigot Bay - All Inclusive
Don't see what you're looking for?
See all available trips from Seattle to Castries
View all trips