Latest deals
Insights
FAQs
Reviews

Cheap flights from St. Louis to Knoxville from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Knoxville departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
From?
To?
Tue 6/4
Tue 6/11

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Easily compare round-trip flights from St. Louis to Knoxville

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Knoxville by changing tabs
Delta
Jun 25
STL6:00 amLambert-St Louis
6h 18m
1 stop
TYS1:18 pmKnoxville McGhee Tyson
Jul 9
TYS5:25 amKnoxville McGhee Tyson
4h 37m
1 stop
STL9:02 amLambert-St Louis
American Airlines
Jun 22
STL5:38 pmLambert-St Louis
5h 20m
1 stop
TYS11:58 pmKnoxville McGhee Tyson
Jul 9
TYS7:49 pmKnoxville McGhee Tyson
4h 40m
1 stop
STL11:29 pmLambert-St Louis
Multiple Airlines
Aug 22
STL6:24 pmLambert-St Louis
25h 07m
2 stops
TYS8:31 pmKnoxville McGhee Tyson
Aug 26
TYS5:19 pmKnoxville McGhee Tyson
17h 20m
2 stops
STL9:39 amLambert-St Louis
Frontier
Jul 18
STL8:57 pmLambert-St Louis
23h 39m
1 stop
TYS9:36 pmKnoxville McGhee Tyson
Jul 23
TYS10:27 pmKnoxville McGhee Tyson
11h 16m
1 stop
STL8:43 amLambert-St Louis
American Airlines
Jul 13
STL9:09 amLambert-St Louis
5h 23m
1 stop
TYS3:32 pmKnoxville McGhee Tyson
Jul 16
TYS5:10 amKnoxville McGhee Tyson
4h 20m
1 stop
STL8:30 amLambert-St Louis
Delta
Jun 25
STL6:00 amLambert-St Louis
6h 18m
1 stop
TYS1:18 pmKnoxville McGhee Tyson
Jul 11
TYS7:56 pmKnoxville McGhee Tyson
4h 43m
1 stop
STL11:39 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Knoxville

If you're looking for one-way flights from St. Louis to Knoxville, view some of our deals below provided by American Airlines and Delta
American Airlines
Sep 18
STL9:05 amLambert-St Louis
4h 02m
1 stop
TYS2:07 pmKnoxville McGhee Tyson
Delta
Jul 3
STL5:25 pmLambert-St Louis
5h 27m
1 stop
TYS11:52 pmKnoxville McGhee Tyson
Multiple Airlines
Jun 29
STL6:22 pmLambert-St Louis
16h 05m
1 stop
TYS11:27 amKnoxville McGhee Tyson

Search last-minute flights to Knoxville from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Knoxville
Delta
Jun 6
STL6:00 amLambert-St Louis
3h 11m
1 stop
TYS10:11 amKnoxville McGhee Tyson
Jun 9
TYS5:25 amKnoxville McGhee Tyson
4h 45m
1 stop
STL9:10 amLambert-St Louis
Multiple Airlines
Jun 6
STL7:45 amLambert-St Louis
26h 28m
3 stops
TYS11:13 amKnoxville McGhee Tyson
Jun 9
TYS6:00 amKnoxville McGhee Tyson
12h 11m
2 stops
STL5:11 pmLambert-St Louis
American Airlines
Jun 6
STL5:15 amLambert-St Louis
5h 59m
1 stop
TYS12:14 pmKnoxville McGhee Tyson
Jun 9
TYS5:12 amKnoxville McGhee Tyson
8h 04m
2 stops
STL12:16 pmLambert-St Louis
Multiple Airlines
Jun 6
STL8:12 pmLambert-St Louis
23h 23m
2 stops
TYS8:35 pmKnoxville McGhee Tyson
Jun 9
TYS6:00 amKnoxville McGhee Tyson
12h 11m
2 stops
STL5:11 pmLambert-St Louis
Multiple Airlines
Jun 6
STL7:45 amLambert-St Louis
26h 28m
3 stops
TYS11:13 amKnoxville McGhee Tyson
Jun 9
TYS8:00 amKnoxville McGhee Tyson
30h 51m
3 stops
STL1:51 pmLambert-St Louis

United Airlines flights from St. Louis to Knoxville

Our best United Airlines deals on St. Louis to Knoxville flight tickets
United Airlines
Jun 26
STL8:25 amLambert-St Louis
14h 18m
1 stop
TYS11:43 pmKnoxville McGhee Tyson
Jul 3
TYS7:00 amKnoxville McGhee Tyson
8h 18m
1 stop
STL2:18 pmLambert-St Louis
United Airlines
Jun 26
STL6:30 amLambert-St Louis
6h 27m
1 stop
TYS1:57 pmKnoxville McGhee Tyson
Jul 3
TYS5:50 amKnoxville McGhee Tyson
10h 50m
2 stops
STL3:40 pmLambert-St Louis

American Airlines flights from St. Louis to Knoxville

Our best American Airlines deals on St. Louis to Knoxville flight tickets
American Airlines
Jun 22
STL5:38 pmLambert-St Louis
5h 20m
1 stop
TYS11:58 pmKnoxville McGhee Tyson
Jul 9
TYS7:49 pmKnoxville McGhee Tyson
4h 40m
1 stop
STL11:29 pmLambert-St Louis
American Airlines
Jul 13
STL9:09 amLambert-St Louis
5h 23m
1 stop
TYS3:32 pmKnoxville McGhee Tyson
Jul 16
TYS5:10 amKnoxville McGhee Tyson
4h 20m
1 stop
STL8:30 amLambert-St Louis
American Airlines
Aug 22
STL12:45 pmLambert-St Louis
3h 49m
1 stop
TYS5:34 pmKnoxville McGhee Tyson
Aug 26
TYS5:10 amKnoxville McGhee Tyson
4h 01m
1 stop
STL8:11 amLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

February. The cheapest time of year to fly to Knoxville from St. Louis is February. Most expensive is March

What is the cheapest day to depart St. Louis for Knoxville?

Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Knoxville?

In the evening. St. Louis to Knoxville flights are approximately 23% more expensive at noon than in the evening

What is the cheapest airline that flies to Knoxville from St. Louis?

American Airlines. American Airlines, Delta, and United Airlines are the most popular carriers operating from St. Louis to Knoxville

What is the cheapest St. Louis to Knoxville flight route?

Lambert-St Louis - Knoxville McGhee Tyson. Fly from Lambert-St Louis to Knoxville McGhee Tyson for the best St. Louis - Knoxville flight prices

How far in advance should you book St. Louis to Knoxville flights?

46 days before. The cheapest time to buy a flight from St. Louis to Knoxville is approximately 46 days to departure

Cheap St. Louis to Knoxville (STL to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Knoxville

Best Price Found

$98

Fastest flight time

3h 35m

Direct flights

None

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from St. Louis in the past 72 hours is $98. The best round-trip flight deal from St. Louis to Knoxville found on momondo in the last 72 hours is $198.
The fastest flight from St. Louis to Knoxville takes 3h 35m
There are no direct flights from St. Louis to Knoxville. Popular non-direct route for this connection is Lambert-St Louis Airport - Knoxville McGhee Tyson Airport.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

  • How far is Lambert-St Louis to Knoxville McGhee Tyson by plane?

    Lambert-St Louis and Knoxville McGhee Tyson are 390.7 mi apart from one another. Flights usually cover this in 3h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Lambert-St Louis Airport to Knoxville McGhee Tyson Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Knoxville McGhee Tyson Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Best airlines flying from St. Louis to Knoxville

Compare and see reviews for airlines that fly from St. Louis to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $205Free CancellationRating
7.3
14,284 reviews
Search American Airlines flights
DeltaPriceFrom $227Free CancellationRating
8.0
10,457 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
10,777 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Knoxville?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Knoxville. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Knoxville with flexible booking policies on momondo?

Yes. All flights to Knoxville from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Knoxville?

momondo helps you find the best flight between St. Louis and Knoxville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Knoxville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Knoxville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knoxville and let you know when they change.


An easier way to manage your Knoxville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 6/4
Tue 6/11
Email me momondo's favorite deals

Find better results for your trip to the United States