Cheap flights from the United States to Knoxville from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Knoxville departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from the United States to Knoxville

Recent round-trip flight deals from the United States to Knoxville

Enter your travel dates to find the best prices.
Allegiant Air Logo
8:30 pm - 10:10 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
5:56 pm - 7:40 pm
TYS
-
IAD
1h 44mnonstop
$78Allegiant Air
Thu, Feb 19 - Sun, Feb 22
Allegiant Air Logo
4:13 pm - 5:53 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
1:39 pm - 3:23 pm
TYS
-
IAD
1h 44mnonstop
$79Allegiant Air
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
2:00 pm - 3:30 pm
DFW
-
TYS
24h 30m1 stop
Frontier Logo
4:30 pm - 12:11 am
TYS
-
DFW
8h 41m1 stop
$145Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
10:45 am - 3:30 pm
DEN
-
TYS
2h 45mnonstop
Frontier Logo
4:30 pm - 6:02 pm
TYS
-
DEN
3h 32mnonstop
$153Frontier
Fri, Jan 23 - Mon, Jan 26
American Airlines Logo
9:17 am - 3:20 pm
BWI
-
TYS
6h 03m1 stop
American Airlines Logo
3:00 pm - 9:18 pm
TYS
-
BWI
6h 18m1 stop
$167American Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
2:46 pm - 9:21 pm
BWI
-
TYS
6h 35m1 stop
American Airlines Logo
7:41 am - 1:56 pm
TYS
-
BWI
6h 15m1 stop
$183American Airlines
Mon, Feb 2 - Wed, Feb 4
United Airlines Logo
7:42 am - 10:32 am
ORD
-
TYS
1h 50mnonstop
United Airlines Logo
6:45 am - 7:48 am
TYS
-
ORD
2h 03mnonstop
$189United Airlines
Thu, Feb 5 - Sun, Feb 8
Delta Logo
6:00 am - 11:08 am
BWI
-
TYS
5h 08m1 stop
Delta Logo
11:58 am - 3:38 pm
TYS
-
BWI
3h 40m1 stop
$192Delta
Sun, Feb 8 - Tue, Feb 10
United Airlines Logo
6:06 pm - 8:47 pm
ORD
-
TYS
1h 41mnonstop
United Airlines Logo
7:00 am - 8:00 am
TYS
-
ORD
2h 00mnonstop
$198United Airlines
Fri, Mar 6 - Sun, Mar 15
Delta Logo
5:45 am - 11:08 am
HOU
-
TYS
4h 23m1 stop
Delta Logo
5:00 pm - 10:33 pm
TYS
-
HOU
6h 33m1 stop
$199Delta
Fri, Feb 6 - Sat, Feb 7

Allegiant Air flights from United States to Knoxville

Our best Allegiant Air deals on United States to Knoxville flight tickets
Allegiant Air
Feb 19
IAD8:30 pmWashington, D.C. Dulles Intl
1h 40m
TYS10:10 pmKnoxville McGhee Tyson
Feb 22
TYS5:56 pmKnoxville McGhee Tyson
1h 44m
IAD7:40 pmWashington, D.C. Dulles Intl
$78
Allegiant Air
Feb 5
IAD4:13 pmWashington, D.C. Dulles Intl
1h 40m
TYS5:53 pmKnoxville McGhee Tyson
Feb 8
TYS1:39 pmKnoxville McGhee Tyson
1h 44m
IAD3:23 pmWashington, D.C. Dulles Intl
$79
Allegiant Air
Feb 5
IAD4:13 pmWashington, D.C. Dulles Intl
1h 40m
TYS5:53 pmKnoxville McGhee Tyson
Feb 8
TYS1:39 pmKnoxville McGhee Tyson
1h 44m
IAD3:23 pmWashington, D.C. Dulles Intl
$80

Delta flights from United States to Knoxville

Our best Delta deals on United States to Knoxville flight tickets
Delta
Feb 4
IAD7:15 amWashington, D.C. Dulles Intl
3h 53m
1 stop
TYS11:08 amKnoxville McGhee Tyson
Feb 11
TYS7:00 amKnoxville McGhee Tyson
4h 45m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$167
Delta
Feb 5
IAD7:15 amWashington, D.C. Dulles Intl
3h 53m
1 stop
TYS11:08 amKnoxville McGhee Tyson
Feb 10
TYS5:40 amKnoxville McGhee Tyson
6h 04m
1 stop
IAD11:44 amWashington, D.C. Dulles Intl
$183
Delta
Feb 20
IAD7:35 pmWashington, D.C. Dulles Intl
4h 17m
1 stop
TYS11:52 pmKnoxville McGhee Tyson
Feb 24
TYS5:35 amKnoxville McGhee Tyson
3h 38m
1 stop
IAD9:13 amWashington, D.C. Dulles Intl
$188

momondo Fare Finder

 
Customize your flight search to find flights from United States 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, momondo users made 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from the United States to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 2/19

8:30 pm-10:10 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 2/22

5:56 pm-7:40 pm

Nonstop1h 44m

$78

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 2/5

4:13 pm-5:53 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 2/8

1:39 pm-3:23 pm

Nonstop1h 44m

$79

DallasKnoxville

DFW - TYS

DFWTYS

Dallas/Fort Worth

Thu 1/29

2:00 pm-3:30 pm

1 stop24h 30m

Knoxville McGhee Tyson

Mon 2/2

4:30 pm-12:11 am

1 stop8h 41m

$145

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Fri 1/23

10:45 am-3:30 pm

Nonstop2h 45m

Knoxville McGhee Tyson

Mon 1/26

4:30 pm-6:02 pm

Nonstop3h 32m

$153

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Tue 2/3

9:17 am-3:20 pm

1 stop6h 03m

Knoxville McGhee Tyson

Tue 2/10

3:00 pm-9:18 pm

1 stop6h 18m

$167

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Mon 2/2

2:46 pm-9:21 pm

1 stop6h 35m

Knoxville McGhee Tyson

Wed 2/4

7:41 am-1:56 pm

1 stop6h 15m

$183

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Thu 2/5

7:42 am-10:32 am

Nonstop1h 50m

Knoxville McGhee Tyson

Sun 2/8

6:45 am-7:48 am

Nonstop2h 03m

$189

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Sun 2/8

6:00 am-11:08 am

1 stop5h 08m

Knoxville McGhee Tyson

Tue 2/10

11:58 am-3:38 pm

1 stop3h 40m

$192

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Fri 3/6

6:06 pm-8:47 pm

Nonstop1h 41m

Knoxville McGhee Tyson

Sun 3/15

7:00 am-8:00 am

Nonstop2h 00m

$198

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 2/6

5:45 am-11:08 am

1 stop4h 23m

Knoxville McGhee Tyson

Sat 2/7

5:00 pm-10:33 pm

1 stop6h 33m

$199

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Knoxville from

How to get the cheapest flight ticket from United States 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 to Knoxville?

The month of February is, on average, the cheapest month to fly to Knoxville from United States, with most prices found around $237. If you aren’t able to travel during the month of February, then book flights to Knoxville from United States during July instead. Flights to Knoxville in July, while not as cheap as those in February, still average around $279.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from United States to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday will often find tickets for as low as $263. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from United States to Knoxville for around $456.

What is the cheapest time of day to depart on your flight to Knoxville?

In the morning is the cheapest time of day to fly from United States to Knoxville when you can find flight prices for as low as $284. Flying to Knoxville in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the afternoon when prices are around $356.

What is the cheapest United States to Knoxville McGhee Tyson flight route?

Fly from Orlando to Knoxville McGhee Tyson for the best United States - Knoxville McGhee Tyson flight prices

What cabin class options are available on United States to Knoxville McGhee Tyson flights?

There are 2 cabin classes available to choose from on United States to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Knoxville flights?

No. A direct flight is the cheapest option for a flight between United States to Knoxville.

Cheap United States to Knoxville flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Knoxville

Best Price Found

$38

Fastest flight time

0h 51m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from United States in the past 72 hours is $38. The best round-trip flight deal from United States to Knoxville found on momondo in the last 72 hours is $52.
The fastest flight from United States to Knoxville takes 0h 51m
Direct flights go from United States to Knoxville every day.
There is 1 airport in Knoxville. From United States there are direct flights to Knoxville McGhee Tyson (TYS).
  • When did momondo last update prices for flights from United States to Knoxville McGhee Tyson Airport?

    Prices for flights from United States to Knoxville McGhee Tyson Airport refresh daily.

  • How many operators does momondo search for flights from United States to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from United States to Knoxville McGhee Tyson Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Knoxville McGhee Tyson Airport.

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

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United States to Knoxville?

Best airlines flying from United States to Knoxville

Compare and see reviews for airlines that fly from United States to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $63Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
FrontierPriceFrom $87Free CancellationRating
5.7
3,061 reviews
Search Frontier flights
DeltaPriceFrom $133Free CancellationRating
7.9
8,029 reviews
Search Delta flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
United AirlinesPriceFrom $233Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Alcoa
Maryville
Murphy
Crossville
Oak Ridge
Newport
Lenoir City
Kodak
Dandridge
Jefferson City
Clinton
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from United States to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from United States to Knoxville with flexible booking policies on momondo?

All flight searches from United States to Knoxville on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United States to Knoxville?

Once all potential United States to Knoxville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from United States and alert you when they change.

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1 adult
Sat 2/7
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