Route Price Intelligence
Cheap Flights From Seattle to St. Lucia
Live pricing benchmarks, monthly patterns, and historical lows for this route.
⭐ Great DealFound 4d ago
$509Escape to St. Lucia for $509 - 44% below normal pricing. Rare direct Caribbean access from the Pacific Northwest!
✓ 21 date combinations found at this price
Search Google FlightsTypical Price
$789
Deals From
$660
Usually Costs
$660 – $917
Lowest We've Seen
$484
Based on 3,760 price pointshigh confidence
Monthly Price Guide
Jan
$559
Feb
$660
Mar
$1,369
Apr
$830
May
$844
Jun
$880
Jul
$914
Aug
$695
Sep
$662
Oct
$670
Nov
$806
Dec
$925
Cheapest Average Expensive
Best Time to Fly from Seattle to St. Lucia
The cheapest time to fly from Seattle to St. Lucia is typically January, when fares average around $559. The most expensive month tends to be March at around $1,369. For the best deals, consider flying in January, February, September.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $48466 price checksWorst: $602