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Cheap flights from Knoxville to St Louis (TYS - STL)

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How to find the cheapest flight from
Knoxville (TYS) to St Louis (STL)

TYS - STL
Price
$174 - $380
STL
Temperature
44.6 - 89.6 °F
STL
Rainfall
2.2 - 5.1 inches

Popular in

October

High demand for flights, 27% potential price rise

Cheapest in

August

Best time to find cheap flights, 38% potential price drop

Round-trip from

$174

From Knoxville to St Louis

One-way from

$100

One-way flight from Knoxville to St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Knoxville to St Louis?

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 46% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Knoxville to St Louis?

Find a great deal and save up to 96% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Knoxville to St Louis within the next two weeks, with the cheapest ticket starting at $374.

What is the cheapest month to fly from Knoxville to St Louis?

August is one of the best times of the year to fly to St Louis from Knoxville. Prices for August average $266 per person but you can even find prices for as low as $158. The most expensive prices can be found in the month of December. Opting for a August flight can save you 23% on your journey compared to booking in August

When is the cheapest time to fly from Knoxville to St Louis (TYS - STL)?

One of the essential ways to save on airfare from Knoxville to St Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

Cheap flights from Knoxville to St Louis in December, January 2021

The best prices found for TYS to STL flights for December, January
24 Dec - 2 Jan
$175pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
27 Dec - 9 Jan
$176pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
24 Dec - 2 Jan
$185pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson

Knoxville to St Louis 2021 flight deals

Cheap flights to St Louis from Knoxville found for this year
24 Dec - 2 Jan
$175pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
27 Dec - 9 Jan
$176pp
TYS
Knoxville McGhee Tyson
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson
24 Dec - 2 Jan
$185pp
TYS
Knoxville McGhee Tyson
American Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
TYS
Knoxville McGhee Tyson

Non-stop flights to St Louis from Knoxville

Save time with Knoxville to St Louis direct flight deals
20 Dec - 20 Dec
$4,466pp
TYS
Knoxville McGhee Tyson
Linear Air Taxi
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Linear Air Taxi
Non-Stop
TYS
Knoxville McGhee Tyson
27 Dec - 9 Jan
$5,885pp
TYS
Knoxville McGhee Tyson
Linear Air Taxi
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Linear Air Taxi
Non-Stop
TYS
Knoxville McGhee Tyson
27 Dec - 9 Jan
$5,897pp
TYS
Knoxville McGhee Tyson
Linear Air Taxi
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
Linear Air Taxi
Non-Stop
TYS
Knoxville McGhee Tyson

One-way flights to St Louis from Knoxville

The cheapest one-way flights from Knoxville to St Louis
2:31 pm - 12:09 pm
Frontier
1 Stop
22h 38m
TYS - STL
Frontier
$100
Kiwi.com
6:30 am - 8:12 am
United Airlines
2 Stops
26h 42m
TYS - STL
United Airlines
$252
United
1:00 am - 7:04 am
American Airlines
1 Stop
7h 04m
TYS - STL
American Airlines

Related info for your journey

Useful info, stats and facts about Knoxville to St Louis flights.

Flight FAQs

From Knoxville to St Louis

Are flight prices decreasing from Knoxville to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Knoxville and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Knoxville McGhee Tyson to Lambert-St Louis to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. New policies for travelers booking flights from Knoxville McGhee Tyson to Lambert-St Louis include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Knoxville McGhee Tyson to Lambert-St Louis have flexible cancellations due to COVID-19?

American Airlines, Delta, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Knoxville to St Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Knoxville to St Louis for under $200. The cheapest flight booked recently is on American Airlines for just $175, but on average you can expect to pay $1,137.

Are there nonstop flights from Knoxville to St Louis for under $4,500 on Cheapflights?

Cheapflights has at least 4 direct flights from Knoxville to St Louis under $4,500. A good price for a nonstop flight from Knoxville to St Louis is less than $5,540.

Does it rain more in Knoxville or St Louis?

In Knoxville, there will be greater rainfall in Knoxville compared to St Louis over the next 14 days.

Is Knoxville weather warmer or cooler than St Louis?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in St Louis is typically the same as in Knoxville. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Knoxville to St Louis?

Departing from Knoxville to St Louis will take you 2h 51m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Knoxville to St Louis round-trip?

Our cheapest airline available from Knoxville to St Louis is American Airlines. Our recent data shows that you can find tickets from as low as $175 on this airline. Additional options worth looking into are United Airlines and Linear Air Taxi, starting at $278 and $4,466 round-trip. These flights start at 37% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Knoxville to St Louis one-way?

One-way options have recently been found by users for as low as $100 on Frontier. Other airlines that offer cheap prices include American Airlines from $108 and United Airlines from $163 one-way.

Alternative routes for Knoxville to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Knoxville to St Louis
Flight duration
2h 51m
Average temperature for December in St Louis
46.4 °F
Avg rainfall for December in St Louis
2.5 ″

Airports servicing Knoxville

Airports servicing St. Louis

Top 3 airlines from Knoxville to St Louis

The chart below displays the airlines Cheapflights users traveling from Knoxville to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$163 $290 No cancel fee 69%
American Airlines
$179 $323 No cancel fee 71%
Delta
$206 $350 No cancel fee N/A
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