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Cheap flights from Knoxville to St. Louis (TYS - STL) from $86

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 7/18. 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.
TYS — STL
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Knoxville McGhee Tyson to Lambert-St Louis are usually found in April or January, booked 76 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Knoxville to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to St. Louis (STL). 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 2, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$319

One-way from

$175
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Knoxville McGhee Tyson to Lambert-St Louis
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One-way flight from Knoxville McGhee Tyson to Lambert-St Louis
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What is the cheapest day to fly round-trip from Knoxville to St. Louis?

Sunday flights are found to be more expensive to fly from Knoxville to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

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

Users have found that booking a flight from Knoxville to St. Louis at least 44 days early can save you up to 36% on average compared to booking a flight this week. If booking 44 days before your flight isn’t an option for you, users have found flights from Knoxville to St. Louis for as little as $267 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $464 for flights departing within the next 3 days.

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

The best pricing can be found in the month of April. Prices to St. Louis from Knoxville average $341. You can even find prices in April for less than $341, as users have found deals to St. Louis from as low as $214. The month of June appears to be one of the more expensive times to travel to St. Louis from Knoxville. Flying in the targeted month can save you up to 38%.

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

A simple way to save on the total cost of your ticket is to fly from Knoxville to St. Louis at noon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the morning.

Cheap Delta flights from Knoxville to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Knoxville and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Find some of the cheapest Delta flights traveling from Knoxville to St. Louis. Deals update often to give you more flight options matching your criteria
Tue 7/95:25 amTYS - STL
1 stop4h 37mDelta
Mon 7/157:01 pmSTL - TYS
1 stop3h 50mDelta
Deal found 6/1$213
Thu 8/812:09 pmTYS - STL
1 stop5h 11mDelta
Sun 8/115:26 pmSTL - TYS
1 stop5h 25mDelta
Deal found 6/2$223
Thu 7/115:25 amTYS - STL
1 stop4h 37mDelta
Mon 7/157:01 pmSTL - TYS
1 stop3h 50mDelta
Deal found 6/2$228
Wed 6/195:25 amTYS - STL
1 stop4h 45mDelta
Sat 6/225:25 pmSTL - TYS
1 stop5h 28mDelta
Deal found 6/1$233
Fri 6/77:40 amTYS - STL
1 stop6h 46mDelta
Mon 6/105:25 pmSTL - TYS
1 stop5h 28mDelta
Deal found 6/2$331
Tue 7/95:25 amTYS - STL
1 stop4h 37mDelta
Thu 7/1110:08 amSTL - TYS
1 stop3h 49mDelta
Deal found 6/1$384
Wed 7/105:25 amTYS - STL
1 stop4h 37mDelta
Sun 7/146:00 amSTL - TYS
1 stop4h 19mDelta
Deal found 6/1$388
Wed 7/1010:09 amTYS - STL
1 stop5h 35mDelta
Fri 7/127:01 pmSTL - TYS
1 stop3h 50mDelta
Deal found 6/1$424
Tue 7/95:25 amTYS - STL
1 stop4h 37mDelta
Sat 7/136:06 amSTL - TYS
2 stops15h 08mDelta
Deal found 6/1$433

Cheap American Airlines flights from Knoxville to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Knoxville and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Some of the lowest-priced American Airlines flights we've found at this time heading from Knoxville to St. Louis. Deals frequently update to provide users with more options.
Thu 8/155:10 amTYS - STL
1 stop4h 09mAmerican Airlines
Thu 8/229:09 amSTL - TYS
1 stop4h 14mAmerican Airlines
Deal found 6/1$218
Wed 6/127:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Wed 6/195:27 pmSTL - TYS
1 stop5h 57mAmerican Airlines
Deal found 6/1$242
Fri 6/77:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Sun 6/95:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Deal found 5/31$243
Fri 6/712:44 pmTYS - STL
1 stop5h 04mAmerican Airlines
Wed 6/195:38 pmSTL - TYS
1 stop5h 20mAmerican Airlines
Deal found 6/1$251
Fri 9/66:17 pmTYS - STL
1 stop4h 52mAmerican Airlines
Sun 9/87:19 amSTL - TYS
1 stop5h 48mAmerican Airlines
Deal found 6/1$268
Tue 6/256:21 amTYS - STL
1 stop5h 04mAmerican Airlines
Sun 6/306:00 amSTL - TYS
1 stop9h 10mAmerican Airlines
Deal found 6/1$353
Tue 7/96:25 pmTYS - STL
1 stop5h 27mAmerican Airlines
Fri 7/126:10 amSTL - TYS
1 stop9h 24mAmerican Airlines
Deal found 6/1$367
Thu 6/205:05 pmTYS - STL
1 stop5h 23mAmerican Airlines
Sun 6/236:00 amSTL - TYS
1 stop9h 10mAmerican Airlines
Deal found 6/1$373
Thu 8/84:15 pmTYS - STL
1 stop4h 07mAmerican Airlines
Sun 8/116:00 amSTL - TYS
2 stops7h 23mAmerican Airlines
Deal found 6/1$493

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

Find cheap flight options from Knoxville to St. Louis specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Prices were last updated on June 2, 2024.
These are some of the most attractive deals on flights from Knoxville to St. Louis in 2024. Check back in a little while for more flight options.
Sat 6/295:12 amTYS - STL
1 stop4h 20mAmerican Airlines
Sat 7/65:22 amSTL - TYS
1 stop5h 30mAmerican Airlines
Deal found 6/1$228
Wed 6/195:25 amTYS - STL
1 stop4h 45mDelta
Sat 6/225:25 pmSTL - TYS
1 stop5h 28mDelta
Deal found 6/1$233
Wed 6/127:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Wed 6/195:27 pmSTL - TYS
1 stop5h 57mAmerican Airlines
Deal found 6/1$242
Fri 6/77:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Sun 6/95:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Deal found 5/31$243
Fri 6/712:44 pmTYS - STL
1 stop5h 04mAmerican Airlines
Wed 6/195:38 pmSTL - TYS
1 stop5h 20mAmerican Airlines
Deal found 6/1$251
Fri 6/76:00 amTYS - STL
1 stop12h 11mMultiple Airlines
Sun 6/96:55 pmSTL - TYS
2 stops25h 19mMultiple Airlines
Deal found 5/31$314
Tue 6/258:10 amTYS - STL
3 stops29h 55mMultiple Airlines
Sun 6/3011:10 amSTL - TYS
1 stop7h 25mMultiple Airlines
Deal found 6/1$333
Fri 6/76:00 amTYS - STL
1 stop12h 11mMultiple Airlines
Wed 6/1912:15 pmSTL - TYS
3 stops22h 12mMultiple Airlines
Deal found 6/1$342
Mon 6/104:15 pmTYS - STL
3 stops19h 42mMultiple Airlines
Thu 6/1312:45 pmSTL - TYS
1 stop5h 50mMultiple Airlines
Deal found 5/31$346

Knoxville to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Knoxville and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
These are some of the most attractive deals on flights from Knoxville to St. Louis in 2024. Check back in a little while for more flight options.
Tue 7/95:25 amTYS - STL
1 stop4h 37mDelta
Mon 7/157:01 pmSTL - TYS
1 stop3h 50mDelta
Deal found 6/1$213
Thu 8/155:10 amTYS - STL
1 stop4h 09mAmerican Airlines
Thu 8/229:09 amSTL - TYS
1 stop4h 14mAmerican Airlines
Deal found 6/1$218
Thu 8/812:09 pmTYS - STL
1 stop5h 11mDelta
Sun 8/115:26 pmSTL - TYS
1 stop5h 25mDelta
Deal found 6/2$223
Thu 7/115:25 amTYS - STL
1 stop4h 37mDelta
Mon 7/157:01 pmSTL - TYS
1 stop3h 50mDelta
Deal found 6/2$228
Wed 6/195:25 amTYS - STL
1 stop4h 45mDelta
Sat 6/225:25 pmSTL - TYS
1 stop5h 28mDelta
Deal found 6/1$233
Wed 6/127:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Wed 6/195:27 pmSTL - TYS
1 stop5h 57mAmerican Airlines
Deal found 6/1$242
Fri 6/77:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Sun 6/95:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Deal found 5/31$243
Fri 6/712:44 pmTYS - STL
1 stop5h 04mAmerican Airlines
Wed 6/195:38 pmSTL - TYS
1 stop5h 20mAmerican Airlines
Deal found 6/1$251
Fri 9/66:17 pmTYS - STL
1 stop4h 52mAmerican Airlines
Sun 9/87:19 amSTL - TYS
1 stop5h 48mAmerican Airlines
Deal found 6/1$268

Knoxville to St. Louis flights leaving soon

Find last-minute flight options from Knoxville to St. Louis 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 2,807,690 searches. Data last updated June 2, 2024.
Have a look at some of the flights available from Knoxville to St. Louis departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 6/127:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Wed 6/195:27 pmSTL - TYS
1 stop5h 57mAmerican Airlines
Deal found 6/1$242
Fri 6/77:40 pmTYS - STL
1 stop5h 23mAmerican Airlines
Sun 6/95:15 amSTL - TYS
1 stop4h 17mAmerican Airlines
Deal found 5/31$243
Fri 6/712:44 pmTYS - STL
1 stop5h 04mAmerican Airlines
Wed 6/195:38 pmSTL - TYS
1 stop5h 20mAmerican Airlines
Deal found 6/1$251
Fri 6/76:00 amTYS - STL
1 stop12h 11mMultiple Airlines
Sun 6/96:55 pmSTL - TYS
2 stops25h 19mMultiple Airlines
Deal found 5/31$314
Fri 6/77:40 amTYS - STL
1 stop6h 46mDelta
Mon 6/105:25 pmSTL - TYS
1 stop5h 28mDelta
Deal found 6/2$331
Fri 6/76:00 amTYS - STL
1 stop12h 11mMultiple Airlines
Wed 6/1912:15 pmSTL - TYS
3 stops22h 12mMultiple Airlines
Deal found 6/1$342
Mon 6/104:15 pmTYS - STL
3 stops19h 42mMultiple Airlines
Thu 6/1312:45 pmSTL - TYS
1 stop5h 50mMultiple Airlines
Deal found 5/31$346
Mon 6/108:10 amTYS - STL
2 stops27h 47mMultiple Airlines
Thu 6/1312:45 pmSTL - TYS
1 stop5h 50mMultiple Airlines
Deal found 5/31$406
Fri 6/76:00 amTYS - STL
1 stop12h 11mMultiple Airlines
Sun 6/912:15 pmSTL - TYS
3 stops21h 58mMultiple Airlines
Deal found 5/31$411

One-way flights to St. Louis from Knoxville

Search for one-way flight options from Knoxville to St. Louis. 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 2,807,690 searches. Data last updated June 2, 2024.
If you're seeking multiple options on one-way flights from Knoxville to St. Louis, be sure to check out these deals, which are updated often. For those needing a return trip from Knoxville, there is a search form available above.
Thu 7/186:30 amTYS - STL
1 stop11h 59mMultiple Airlines
Deal found 6/1$86
Sat 9/212:52 pmTYS - STL
1 stop5h 38mAmerican Airlines
Deal found 6/1$99
Sat 6/227:30 amTYS - STL
1 stop10h 58mMultiple Airlines
Deal found 5/31$120
Thu 6/206:21 amTYS - STL
1 stop6h 55mAmerican Airlines
Deal found 5/31$126
Sat 6/297:30 amTYS - STL
1 stop10h 58mMultiple Airlines
Deal found 6/1$158
Fri 6/2110:32 pmTYS - STL
1 stop11h 57mFrontier
Deal found 5/31$175
Tue 7/1610:00 amTYS - STL
3 stops26h 45mMultiple Airlines
Deal found 6/1$178
Wed 7/178:10 amTYS - STL
3 stops34h 19mMultiple Airlines
Deal found 6/1$180
Thu 7/186:30 amTYS - STL
3 stops30h 35mMultiple Airlines
Deal found 6/1$191

Find flights from Knoxville to St. Louis within your budget

Customize your flight search to find flights from Knoxville to St. Louis 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 2,807,690 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$213 - $372

Route

Depart

Return

Price

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Tue 7/9

1 stop4h 37m

Lambert-St Louis

Mon 7/15

1 stop3h 50m

$213

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Thu 8/15

1 stop4h 09m

Lambert-St Louis

Thu 8/22

1 stop4h 14m

$218

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Thu 8/8

1 stop5h 11m

Lambert-St Louis

Sun 8/11

1 stop5h 25m

$223

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Thu 7/11

1 stop4h 37m

Lambert-St Louis

Mon 7/15

1 stop3h 50m

$228

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 6/19

1 stop4h 45m

Lambert-St Louis

Sat 6/22

1 stop5h 28m

$233

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 6/12

1 stop5h 23m

Lambert-St Louis

Wed 6/19

1 stop5h 57m

$242

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Thu 7/11

1 stop11h 59m

Lambert-St Louis

Mon 7/15

3 stops26h 36m

$294

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Mon 6/24

1 stop17h 06m

Lambert-St Louis

Sat 6/29

1 stop20h 44m

$365

Knoxville McGhee TysonLambert-St Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 7/10

2 stops10h 50m

Lambert-St Louis

Sat 7/13

1 stop4h 12m

$372

Flights are sorted by cheapest first

Deals found on 6/1

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to St. Louis. Price data was last updated on May 31, 2024.
The price you pay for your flight from Knoxville to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 74 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 Knoxville to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to St. Louis. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Knoxville to St. Louis flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday mornings 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 Knoxville to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Knoxville 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 St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 2, 2024.
Peruse reviews from past customers who have flown with Delta, American Airlines and United Airlines from Knoxville to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,402 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

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
10,402 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

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
10,755 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

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
14,260 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

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
3,998 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

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 Knoxville to St. Louis. 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 Knoxville to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Knoxville to St. Louis for under $300. The cheapest flight booked recently is on Delta for just $213, but on average you can expect to pay $309.

  • Are there last-minute flights available from Knoxville to St. Louis for under $300?

    There are currently 20+ open flights from Knoxville to St. Louis within the next 7 days for less than $300.

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

    Cheapflights users have booked flights from Knoxville to St. Louis round-trip from $213. Other airlines that can offer you cheap pricing are American Airlines, from $218, and Frontier, from $365. These flights start at 37% lower than the current average price 3 months from now.

  • What does TYS to STL mean?

    This is defined as Knoxville McGhee Tyson Airport (TYS) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.

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

    The amount of baggage you can bring on your Knoxville to St. Louis 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 Knoxville to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Knoxville to St. Louis 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 Knoxville to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to St. Louis 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 Knoxville to St. Louis that allow pets onboard?

    Many airlines flying from Knoxville to St. Louis 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 Knoxville to St. Louis?

    Yes, you can often find last-minute deals on Knoxville to St. Louis 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 Knoxville to St. Louis flight deals updated?

    The Knoxville to St. Louis flight deals you see on this page were last updated on 6/2.

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

    Currently, September is the cheapest month in which you can book a flight from Knoxville to St. Louis (average of $319). Flying from Knoxville to St. Louis in July is currently the most expensive (average of $366). 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 Knoxville to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Knoxville to St. Louis

Discover the top 2 airlines that operate flights from Knoxville to St. Louis. 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 2,807,690 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$206Average$293FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$230Average$376FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Knoxville to St. Louis by cabin class

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