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Find cheap flights from Seattle to Saint Lucia from $524

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Saint Lucia departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

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Good to know

Low season

July

High season

February

Cheapest flight

$524
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Seattle to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Seattle to Saint Lucia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint Lucia from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Saint Lucia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint Lucia with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Saint Lucia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint Lucia from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Seattle to Saint Lucia

 
Need help choosing which airline to fly with from Seattle to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
7.9Comfort
8.2Boarding
8.0Entertainment
8.6Crew
7.4Food
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Took off over an hour late with multiple mechanical issues. Gate agent in Dallas was lazy and was slow as molasses. Had a line 10 people long. Spirit bad..

Book cheap flights from Seattle to Saint Lucia

Recent round-trip flight deals

8/23Fri
1 stopAmerican Airlines
13h 48mSEA-UVF
8/28Wed
1 stopAmerican Airlines
13h 51mUVF-SEA
$524
10/7Mon
1 stopAmerican Airlines
11h 15mSEA-UVF
10/16Wed
1 stopAmerican Airlines
12h 09mUVF-SEA
$526
10/7Mon
2 stopsAmerican Airlines
16h 00mSEA-UVF
10/16Wed
2 stopsAmerican Airlines
23h 11mUVF-SEA
$529
11/6Wed
2 stopsAmerican Airlines
15h 01mSEA-UVF
11/15Fri
1 stopAmerican Airlines
22h 46mUVF-SEA
$540
8/23Fri
1 stopAmerican Airlines
13h 48mSEA-UVF
8/28Wed
2 stopsAmerican Airlines
22h 38mUVF-SEA
$544
11/6Wed
1 stopDelta
19h 25mSEA-UVF
11/15Fri
1 stopDelta
28h 11mUVF-SEA
$546
10/12Sat
1 stopAmerican Airlines
12h 45mSEA-UVF
10/17Thu
1 stopAmerican Airlines
12h 09mUVF-SEA
$571
9/17Tue
1 stopAir Canada
12h 20mSEA-UVF
9/22Sun
2 stopsAir Canada
24h 00mUVF-SEA
$623
9/16Mon
3 stops
42h 30mSEA-UVF
9/22Sun
2 stops
24h 00mUVF-SEA
$690
9/17Tue
2 stops
25h 52mSEA-UVF
9/22Sun
3 stops
26h 18mUVF-SEA
$715

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Last minute flights from Seattle to Saint Lucia

Last minute flight, train and bus deals

5/31Fri
multi-stopAmerican Airlines
28h 28mSEA-UVF
6/2Sun
multi-stopAmerican Airlines
46h 43mUVF-SEA
$1,215
5/31Fri
multi-stopAmerican Airlines
14h 29mSEA-UVF
6/2Sun
multi-stopAmerican Airlines
46h 43mUVF-SEA
$1,388
5/31Fri
multi-stop
28h 20mSEA-SLU
6/2Sun
multi-stop
19h 58mSLU-SEA
$2,809

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Seattle - Saint Lucia Flights

Departure:

Seattle (SEA)United States

Cabin classes: