$318 Find Cheap Flights from Knoxville to Saint Lucia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Saint Lucia departing on 10/19. 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
1 adult, Economy

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Book Cheap Knoxville to Saint Lucia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Saint Lucia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Saint Lucia

Sat, Sep 6 - Fri, Sep 12
American Airlines Logo
4:37 pm - 2:17 pmTYS-UVF
21h 40m2 stops
American Airlines Logo
3:17 pm - 2:33 pmUVF-TYS
23h 16m2 stops
$572American Airlines
Find Deal
Sat, Nov 29 - Fri, Dec 5
Delta Logo
5:30 am - 3:10 pmTYS-UVF
8h 40m1 stop
Delta Logo
4:35 pm - 11:46 pmUVF-TYS
8h 11m1 stop
$584Delta
Find Deal
Sat, Sep 6 - Fri, Sep 12
American Airlines Logo
6:24 pm - 2:17 pmTYS-UVF
19h 53m2 stops
American Airlines Logo
3:17 pm - 11:50 pmUVF-TYS
8h 33m1 stop
$617American Airlines
Find Deal
Sat, Sep 6 - Fri, Sep 12
Delta Logo
5:45 am - 2:15 pmTYS-UVF
8h 30m1 stop
Delta Logo
3:38 pm - 11:44 pmUVF-TYS
8h 06m1 stop
$618Delta
Find Deal
Mon, Nov 17 - Fri, Nov 21
American Airlines Logo
6:00 am - 3:50 pmTYS-UVF
8h 50m1 stop
American Airlines Logo
4:04 pm - 8:34 amUVF-TYS
17h 30m1 stop
$669American Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
American Airlines Logo
6:00 am - 1:21 pmTYS-UVF
6h 21m1 stop
American Airlines Logo
4:04 pm - 12:43 pmUVF-TYS
21h 39m2 stops
$674American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
6:24 pm - 2:17 pmTYS-UVF
19h 53m2 stops
American Airlines Logo
3:17 pm - 10:51 amUVF-TYS
19h 34m2 stops
$682American Airlines
Find Deal
Sat, Nov 29 - Fri, Dec 5
American Airlines Logo
5:07 pm - 3:50 pmTYS-UVF
21h 43m1 stop
American Airlines Logo
4:20 pm - 10:55 amUVF-TYS
19h 35m2 stops
$716American Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
American Airlines Logo
7:19 pm - 1:00 pmTYS-UVF
16h 41m2 stops
American Airlines Logo
5:10 pm - 10:54 amUVF-TYS
18h 44m2 stops
$727American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
American Airlines Logo
7:45 pm - 2:17 pmTYS-UVF
18h 32m2 stops
American Airlines Logo
2:56 pm - 10:13 amUVF-TYS
19h 17m2 stops
$728American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Knoxville to Saint Lucia flights

Get data-powered insights and trends into flights from Knoxville to Saint Lucia to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Knoxville to Saint Lucia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Knoxville to Saint Lucia were found on American Airlines ($572) and Delta ($584).


Good to know

Low seasonAugust
Cheapest flight$318
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 32% lower on average.
Flight from Knoxville to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Knoxville 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 Knoxville to Saint Lucia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Knoxville to Saint Lucia 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 Knoxville 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 from Knoxville to Saint Lucia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville 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 from Knoxville to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Saint Lucia?

    The cheapest time of day to fly to Saint Lucia is generally in the morning, when round-trip flights cost $773 on average. The most expensive time of day to fly to Saint Lucia is generally in the morning, which is peak travel time and where the average cost of a ticket is $773.

Reviews of the top airlines flying from Knoxville to Saint Lucia

 
Need help choosing which airline to fly with from Knoxville 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 7980 reviews
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
7.9Entertainment
Airline reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

2.0 MediocreGim, Jul 2025BGM - DTW
Read more Delta reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The plane was broken so we had to change planes.

Everything you need to know for your flight from Knoxville to Saint Lucia

Information on your arrival and departure airports

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