Cheap flights from Seattle to Saint Lucia from $309
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Saint Lucia departing on 6/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Saint Lucia
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Air Canada flights from Seattle to Saint Lucia
Our best Air Canada deals on Seattle to Saint Lucia flight tickets
American Airlines flights from Seattle to Saint Lucia
Our best American Airlines deals on Seattle to Saint Lucia flight tickets
See travel insights to Saint Lucia from
How to get the cheapest flight ticket from Seattle to Saint Lucia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Saint Lucia?
Our data shows that Tuesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $590. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $924.
What is the cheapest time of day to depart on your flight to Saint Lucia?
Our data shows that the cheapest Seattle to Saint Lucia flights are usually those with departure times in the evening. Our users have found flights to Saint Lucia in the evening for as low as $863. Flights in the evening are often more expensive with an average ticket price of $863.
Cheap Seattle to Saint Lucia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Saint Lucia
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Saint Lucia?
Prices for flights from Seattle/Tacoma Intl Airport to Saint Lucia are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Saint Lucia?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Saint Lucia is 1 as of April 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Saint Lucia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Seattle to Saint Lucia
Compare and see reviews for airlines that fly from Seattle to Saint Lucia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $525 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Saint Lucia?
It is quick and easy to find Seattle to Saint Lucia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Lucia that suits you.
Can I find flights from Seattle to Saint Lucia with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Saint Lucia flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Saint Lucia?
momondo provides multiple filters to help you find the best flight to Saint Lucia from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Saint Lucia right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Saint Lucia from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.