TYS - SAL

$399 Find Cheap Flights from Knoxville to San Salvador

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 San Salvador departing on 4/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Salvador

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Salvador, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Salvador, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$399
Multiple Airlines
Thu 4/16Thu 4/23
TYS - SAL • 2 stops
Top airlines
United Airlines
Cheapest • from $419 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to San Salvador!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to San Salvador (TYS-SAL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to San Salvador 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 San Salvador

Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
11:27 am - 12:32 pm
TYS
-
SAL
27h 05m
2 stops
Multiple Airlines Logo
2:57 pm - 12:25 pm
SAL
-
TYS
19h 28m
1 stop
$399Multiple Airlines
Wed, Jun 10 - Tue, Aug 4
United Airlines Logo
5:50 am - 11:29 am
TYS
-
SAL
7h 39m
1 stop
United Airlines Logo
1:20 pm - 11:57 pm
SAL
-
TYS
8h 37m
1 stop
$419United Airlines
Wed, Jun 10 - Tue, Aug 4
United Airlines Logo
5:50 am - 11:29 am
TYS
-
SAL
7h 39m
1 stop
United Airlines Logo
1:20 pm - 11:57 pm
SAL
-
TYS
8h 37m
1 stop
$429United Airlines
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
7:17 am - 12:40 pm
TYS
-
SAL
7h 23m
1 stop
American Airlines Logo
2:40 pm - 9:10 am
SAL
-
TYS
16h 30m
2 stops
$433American Airlines
Mon, Aug 3 - Fri, Aug 14
Multiple Airlines Logo
1:36 pm - 1:33 pm
TYS
-
SAL
25h 57m
1 stop
Multiple Airlines Logo
8:45 am - 10:44 pm
SAL
-
TYS
11h 59m
1 stop
$449Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
7:00 am - 1:48 pm
TYS
-
SAL
8h 48m
1 stop
Multiple Airlines Logo
2:53 pm - 11:39 pm
SAL
-
TYS
6h 46m
1 stop
$452Multiple Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
7:15 am - 2:30 pm
TYS
-
SAL
9h 15m
1 stop
United Airlines Logo
6:00 am - 7:34 pm
SAL
-
TYS
11h 34m
1 stop
$456United Airlines
Mon, Aug 3 - Fri, Aug 14
Multiple Airlines Logo
7:20 pm - 1:33 pm
TYS
-
SAL
20h 13m
2 stops
Multiple Airlines Logo
8:45 am - 10:44 pm
SAL
-
TYS
11h 59m
1 stop
$459Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
5:57 pm - 12:19 pm
TYS
-
SAL
20h 22m
2 stops
American Airlines Logo
1:19 pm - 8:32 am
SAL
-
TYS
17h 13m
2 stops
$463American Airlines
Mon, Aug 3 - Sun, Aug 9
United Airlines Logo
5:50 am - 11:29 am
TYS
-
SAL
7h 39m
1 stop
United Airlines Logo
1:20 pm - 11:57 pm
SAL
-
TYS
8h 37m
1 stop
$465United Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to San Salvador flights

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

Which airlines provide the cheapest flights from Knoxville to San Salvador?

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 San Salvador were found on United Airlines ($419) and American Airlines ($433).

Good to know

Low seasonMay
Cheapest flight$399
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Knoxville to San Salvador

When to book flights from Knoxville to San Salvador

Are your dates flexible? Find out the best times to travel from Knoxville to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to San Salvador

  • What is the cheapest flight from Knoxville to San Salvador?

    In the last 3 days, the lowest price for a flight from Knoxville to San Salvador was $399 for a round-trip ticket.

  • Do I need a passport to fly between Knoxville and San Salvador?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Knoxville and on arrival in San Salvador.

  • Which aircraft models fly most regularly from Knoxville to San Salvador?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to San Salvador?

    SkyTeam, and oneworld are the airline alliances operating flights between Knoxville and San Salvador, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to San Salvador, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to San Salvador are Delta and American Airlines. With an average price for the route of $393 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $559 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Knoxville to San Salvador?

    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 San Salvador.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Salvador from Knoxville 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 San Salvador?

    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 San Salvador with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SAL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to San Salvador?

    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 San Salvador from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Knoxville to San Salvador

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to San Salvador. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to San Salvador? 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.
7.9
DeltaOverall score based on 8191 reviews
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

10.0 ExcellentAlicia, Feb 2026
ATL - CVG
Read more Delta reviews

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

bulkhead seat had very little legroom - even in bsiness class.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

boarded at 5:30 pm, pushed away from gate at 6pm ... takeoff was not until ~6:45pm; disappointing

Smooth boarding, pleasant and professional lady checking us in. Crew service was excellent, again pleasant, but professional. Nice touch-down on landing! Thank you Delta. 💗

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Paid for wifi that didn't work. No plug in seat to work. No entertainment.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

Flight was on time and the meal and service were good.

The accessible bathroom should be visible to people in Economy class.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

This was a horrible experience. I’ve experienced several delays at this point and still not home. I was supposed to be home by 8:30 last night and here I sit at 7 am on a plane STILL unable to go home because of American Airlines.

Lexus in first class was absolutely amazing! Beat flight attendant i’ve ever seen.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

Everything you need to know for your flight from Knoxville to San Salvador

Information on your arrival and departure airports