Route Price Intelligence
Cheap Flights From Seattle to St. Lucia
Live pricing benchmarks, monthly patterns, and historical lows for this route.
⭐ Great DealFound 3d 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
$787
Deals From
$660
Usually Costs
$660 – $914
Lowest We've Seen
$484
Based on 4,031 price pointshigh confidence
Monthly Price Guide
Jan
$559
Feb
$660
Mar
$1,369
Apr
$830
May
$840
Jun
$878
Jul
$914
Aug
$694
Sep
$660
Oct
$673
Nov
$795
Dec
$924
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: $48468 price checksWorst: $602