$658 Find Cheap Flights from Knoxville to Saint Lucia - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Saint Lucia departing on 9/16. 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, 0 bags

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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

Wed, Sep 16 - Wed, Sep 23
Delta Logo
5:40 am - 2:12 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
8h 32m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:32 pm - 11:55 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
8h 23m1 stop Atlanta Hartsfield-Jackson
$658Delta
Wed, Sep 16 - Wed, Sep 23
American Airlines Logo
7:00 am - 2:02 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
7h 02m1 stop Miami
American Airlines Logo
3:02 pm - 3:35 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
24h 33m2 stops Miami Philadelphia
$668American Airlines
Thu, Nov 5 - Wed, Nov 11
American Airlines Logo
7:16 pm - 1:32 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
17h 16m1 stop Miami
American Airlines Logo
4:07 pm - 8:48 amUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
17h 41m1 stop Charlotte Douglas
$698American Airlines
Thu, Nov 5 - Wed, Nov 11
American Airlines Logo
8:48 pm - 3:01 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
17h 13m2 stops Chicago O'Hare Intl Miami
American Airlines Logo
4:07 pm - 10:48 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
7h 41m1 stop Charlotte Douglas
$703American Airlines
Thu, Nov 5 - Wed, Nov 11
American Airlines Logo
8:04 pm - 1:32 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
16h 28m2 stops Charlotte Douglas Miami
American Airlines Logo
4:01 pm - 10:30 amUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
19h 29m2 stops Miami Charlotte Douglas
$703American Airlines
Wed, Sep 16 - Wed, Sep 23
American Airlines Logo
7:18 pm - 2:02 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
18h 44m2 stops Charlotte Douglas Miami
American Airlines Logo
3:02 pm - 12:01 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
20h 59m2 stops Miami Charlotte Douglas
$708American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
6:06 am - 1:49 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
7h 43m1 stop Miami
American Airlines Logo
2:49 pm - 11:51 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
9h 02m1 stop Miami
$858American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
5:33 pm - 1:49 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
20h 16m2 stops Dallas/Fort Worth Miami
American Airlines Logo
2:49 pm - 11:51 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
9h 02m1 stop Miami
$863American Airlines
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
5:33 pm - 1:49 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
20h 16m2 stops Dallas/Fort Worth Miami
American Airlines Logo
2:49 pm - 11:44 amUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
20h 55m2 stops Miami Charlotte Douglas
$863American Airlines
Mon, Nov 16 - Thu, Nov 19
WestJet Logo
5:35 pm - 2:50 pmTYS  Knoxville McGhee Tyson-UVF Castries Hewanorra
20h 15m2 stops New York LaGuardia Toronto Pearson Intl
WestJet Logo
3:40 pm - 4:55 pmUVF  Castries Hewanorra-TYS Knoxville McGhee Tyson
26h 15m2 stops Toronto Pearson Intl New York LaGuardia
$3,301WestJet
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 5 days.

In the past 5 days, the cheapest round-trip tickets from Knoxville to Saint Lucia were found on Delta ($658) and American Airlines ($668).

Good to know

Cheapest flight

$658
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.

Reviews of the top airline 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.
7.1
American AirlinesOverall score based on 11877 reviews
7.2Comfort
7.9Crew
7.5Boarding
6.8Entertainment
6.4Food
Airline reviews

They lost my bag on both the going and return flight of my round-trip.

2.0 Mediocrechandler, Aug 2026
Read more American Airlines reviews

They lost my bag on both the going and return flight of my round-trip.

Not one thing to like. Three flights all with “mechanical” delays. Never got to where I was going and spent additional $500 for a hotel room. American Airlines is the worst in the industry!

Air condition was not working for long both after boarding and also after landing ; unbearably hot and suffocating

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

This was a horrible American Airlines experience, and it discourages me from flying with them again. It may have stemmed from a mechanical delay, but it appeared that the team was unprepared to respond to the delay. After boarding, we waited an hour before finally taking off. After landing at our destination, we waited an additional hour on the tarmac waiting for a gate (at 8:00pm) to be assigned and cleared. The flight crew did their best, but they were clearly tired and also ready to be done for the day. Because of the delay, I missed a connecting flight. It was a very poor experience.

Fantastic! If it had not been for a check-in agent in Knoxville I may have not gotten my passes on British Airways. I couldn’t check-in online because British Airways had messed us the info on my tickets to London & Inverness. AA’s was great! British Airways was a continuous series of delays and frustrations.

Wheelchair was waiting for me,changed to a better seat which was great as it's hard for me to walk

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

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