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Cheap flights from St. Louis to Knoxville (STL - TYS) from $82

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. 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.
STL — TYS
Jun 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
1 adult, Economy
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The best prices from Lambert-St Louis to Knoxville McGhee Tyson are usually found in February or December, booked 46 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap flight deals from St. Louis to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 11, 2024.

Popular in

March

Cheapest in

February

Round-trip from

$302

One-way from

$99
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 32% potential price drop
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From Lambert-St Louis to Knoxville McGhee Tyson
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One-way flight from Lambert-St Louis to Knoxville McGhee Tyson
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What is the cheapest day to fly round-trip from St. Louis to Knoxville?

Friday is generally a great day to depart. Flying on this day could help you save up to 67%.

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

Find a great deal and save up to 31% by booking at least 47 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 St. Louis to Knoxville within the next two weeks, with the cheapest ticket starting at $250.

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

February is one of the best times of the year to fly to Knoxville from St. Louis. Prices for February average $351 per person but you can even find prices for as low as $198. The most expensive prices can be found in the month of March. Opting for a February flight can save you 20% on your journey compared to booking in March

What is the cheapest time of day to fly from STL to TYS?

When flying from St. Louis to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight at noon.

Cheap St. Louis to Knoxville flights in June & July 2024

Find cheap flight options from St. Louis to Knoxville specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 11, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Knoxville in June and July 2024. Check back soon for alternative fares.
Wed 7/177:33 pmSTL - TYS
1 stop13h 14mFrontier
Tue 7/2310:27 pmTYS - STL
1 stop11h 16mFrontier
Deal found 6/9$168
Wed 7/176:00 amSTL - TYS
1 stop4h 16mDelta
Wed 7/245:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/9$198
Thu 7/188:57 pmSTL - TYS
1 stop23h 39mFrontier
Tue 7/2310:27 pmTYS - STL
1 stop11h 16mFrontier
Deal found 6/9$210
Thu 7/183:49 pmSTL - TYS
1 stop4h 04mDelta
Wed 7/245:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/9$213
Mon 7/15:15 amSTL - TYS
1 stop5h 59mAmerican Airlines
Fri 7/56:30 amTYS - STL
1 stop6h 57mAmerican Airlines
Deal found 6/9$222
Wed 7/35:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Mon 7/87:49 pmTYS - STL
1 stop5h 05mAmerican Airlines
Deal found 6/10$237
Fri 7/197:01 pmSTL - TYS
1 stop3h 50mDelta
Sun 7/215:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/10$238
Wed 7/177:33 pmSTL - TYS
1 stop13h 14mFrontier
Mon 7/2210:40 pmTYS - STL
1 stop17h 07mFrontier
Deal found 6/9$258
Thu 6/137:00 amSTL - TYS
1 stop4h 14mAmerican Airlines
Sat 6/152:43 pmTYS - STL
1 stop5h 46mAmerican Airlines
Deal found 6/9$264

St. Louis to Knoxville 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Knoxville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 11, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Knoxville in June and July 2024. Check back soon for alternative fares.
Wed 7/177:33 pmSTL - TYS
1 stop13h 14mFrontier
Tue 7/2310:27 pmTYS - STL
1 stop11h 16mFrontier
Deal found 6/9$168
Wed 7/176:00 amSTL - TYS
1 stop4h 16mDelta
Wed 7/245:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/9$198
Thu 7/188:57 pmSTL - TYS
1 stop23h 39mFrontier
Tue 7/2310:27 pmTYS - STL
1 stop11h 16mFrontier
Deal found 6/9$210
Thu 7/183:49 pmSTL - TYS
1 stop4h 04mDelta
Wed 7/245:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/9$213
Mon 7/15:15 amSTL - TYS
1 stop5h 59mAmerican Airlines
Fri 7/56:30 amTYS - STL
1 stop6h 57mAmerican Airlines
Deal found 6/9$222
Wed 7/35:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Mon 7/87:49 pmTYS - STL
1 stop5h 05mAmerican Airlines
Deal found 6/10$237
Fri 7/197:01 pmSTL - TYS
1 stop3h 50mDelta
Sun 7/215:25 amTYS - STL
1 stop4h 37mDelta
Deal found 6/10$238
Thu 9/57:57 amSTL - TYS
1 stop7h 12mMultiple Airlines
Sun 9/84:59 pmTYS - STL
1 stop15h 08mMultiple Airlines
Deal found 6/9$248
Wed 7/177:33 pmSTL - TYS
1 stop13h 14mFrontier
Mon 7/2210:40 pmTYS - STL
1 stop17h 07mFrontier
Deal found 6/9$258

St. Louis to Knoxville flights leaving soon

Find last-minute flight options from St. Louis to Knoxville for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 11, 2024.
Check out these flights departing soon from St. Louis to Knoxville. Users should examine the flight details to ensure there are no surprises.
Thu 6/208:12 pmSTL - TYS
1 stop13h 19mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/9$312
Thu 6/208:12 pmSTL - TYS
2 stops24h 02mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/9$313
Thu 6/208:12 pmSTL - TYS
2 stops24h 02mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/10$344
Thu 6/2011:25 amSTL - TYS
1 stop7h 10mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/10$356
Thu 6/207:45 amSTL - TYS
3 stops26h 28mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/9$359
Thu 6/2012:15 pmSTL - TYS
3 stops21h 58mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/10$382
Fri 6/2112:15 pmSTL - TYS
3 stops22h 19mMultiple Airlines
Sun 6/236:30 amTYS - STL
1 stop11h 02mMultiple Airlines
Deal found 6/10$447
Thu 6/2012:15 pmSTL - TYS
3 stops21h 58mMultiple Airlines
Sun 6/236:00 amTYS - STL
2 stops12h 25mMultiple Airlines
Deal found 6/10$455
Thu 6/207:06 pmSTL - TYS
1 stop3h 47mDelta
Sun 6/235:25 amTYS - STL
1 stop4h 45mDelta
Deal found 6/10$482

One-way flights to Knoxville from St. Louis

Search for one-way flight options from St. Louis to Knoxville. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 11, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Knoxville. Those seeking round-trip flights from St. Louis to Knoxville should utilize the search form at the the top of the page.
Mon 8/57:33 pmSTL - TYS
1 stop11h 29mFrontier
Deal found 6/9$82
Wed 9/186:00 amSTL - TYS
1 stop4h 11mDelta
Deal found 6/10$99
Thu 9/127:19 amSTL - TYS
1 stop5h 48mAmerican Airlines
Deal found 6/11$109
Thu 7/118:57 pmSTL - TYS
1 stop23h 39mFrontier
Deal found 6/9$135
Thu 7/1112:15 pmSTL - TYS
3 stops22h 19mMultiple Airlines
Deal found 6/9$170
Thu 7/116:19 pmSTL - TYS
2 stops20h 34mMultiple Airlines
Deal found 6/9$178
Mon 8/512:15 pmSTL - TYS
3 stops31h 21mMultiple Airlines
Deal found 6/9$192
Thu 9/125:20 pmSTL - TYS
2 stops25h 44mMultiple Airlines
Deal found 6/11$208
Mon 8/54:02 pmSTL - TYS
2 stops22h 57mMultiple Airlines
Deal found 6/9$223

Find flights from St. Louis to Knoxville within your budget

Customize your flight search to find flights from St. Louis to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$168 - $332

Route

Depart

Return

Price

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Wed 7/17

1 stop13h 14m

Knoxville McGhee Tyson

Tue 7/23

1 stop11h 16m

$168

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Wed 7/17

1 stop4h 16m

Knoxville McGhee Tyson

Wed 7/24

1 stop4h 37m

$198

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Sat 7/13

1 stop13h 14m

Knoxville McGhee Tyson

Tue 7/16

1 stop11h 16m

$208

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Thu 7/18

1 stop23h 39m

Knoxville McGhee Tyson

Tue 7/23

1 stop11h 16m

$210

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Thu 7/18

1 stop4h 04m

Knoxville McGhee Tyson

Wed 7/24

1 stop4h 37m

$213

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Mon 7/1

1 stop5h 59m

Knoxville McGhee Tyson

Fri 7/5

1 stop6h 57m

$222

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Wed 7/3

1 stop4h 17m

Knoxville McGhee Tyson

Mon 7/8

1 stop5h 05m

$237

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Thu 9/5

1 stop7h 12m

Knoxville McGhee Tyson

Sun 9/8

1 stop15h 08m

$248

Lambert-St LouisKnoxville McGhee Tyson

STL - TYS

STLTYS

Lambert-St Louis

Mon 7/1

1 stop4h 12m

Knoxville McGhee Tyson

Fri 7/5

2 stops12h 47m

$332

Flights are sorted by cheapest first

Deals found on 6/9

How far ahead should I book a flight from St. Louis to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Knoxville. Price data was last updated on May 31, 2024.
The price you pay for your flight from St. Louis to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Knoxville. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Knoxville flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature and rainfall totals by month.

TYS

Temperature

39.2 - 78.8 °F

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated June 11, 2024.
To help decide which airline to fly from St. Louis to Knoxville, see what other customers have to say about Frontier, American Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,277 reviews

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,277 reviews
Delta
8.0
Very good
10,277 reviews

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,647 reviews
Delta
8.0
Very good
10,277 reviews

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,129 reviews
Delta
8.0
Very good
10,277 reviews

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Frontier
6.2
Okay
3,962 reviews
Delta
8.0
Very good
10,277 reviews

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Yes, there are multiple flights from St. Louis to Knoxville for under $200. The cheapest flight booked recently is on Frontier for just $168, but on average you can expect to pay $256.

  • Are there last-minute flights available from St. Louis to Knoxville for under $400?

    There are currently 18+ open flights from St. Louis to Knoxville within the next 7 days for less than $400.

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

    According to our current data, Frontier ($168), Delta ($198), and American Airlines ($222) offers the cheapest pricing from St. Louis to Knoxville. Frontier is priced at 52% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $82. Users have also found prices from $99 and $109 on Delta and American Airlines, respectively.

  • What does STL to TYS mean?

    Great question - STL to TYS just means Lambert-St Louis Airport to Knoxville McGhee Tyson Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Knoxville that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Knoxville flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Knoxville with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Knoxville flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Knoxville that include hotel bookings?

    Yes. In addition to deals on St. Louis to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Knoxville.

  • Can I find deals for business class flights from St. Louis to Knoxville?

    Yes. Cheapflights offers flight deals from St. Louis to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Knoxville that allow pets onboard?

    Many airlines flying from St. Louis to Knoxville offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Knoxville?

    Yes, you can often find last-minute deals on St. Louis to Knoxville flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Knoxville flight deals updated?

    The St. Louis to Knoxville flight deals you see on this page were last updated on 6/10.

  • What are the most popular airlines that fly from St. Louis to Knoxville?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from St. Louis to Knoxville.

  • What is the cheapest month to book a flight from St. Louis to Knoxville?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Knoxville (average of $302). Flying from St. Louis to Knoxville in April is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Knoxville
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from St. Louis to Knoxville

Discover the top 3 airlines that operate flights from St. Louis to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$205Average$315FlexibilityNo cancel feeOn-time71%
DeltaCheapest$227Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$499FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Knoxville by cabin class

Find flights from St. Louis to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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