Cheap flights from the United States to Knoxville from $49

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 11/23. 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

Allegiant Air Logo
9:36 pm - 11:16 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
5:59 pm - 7:43 pmTYS-IAD
1h 44mnonstop
$96Allegiant Air
Find Deal
Fri, Oct 17 - Fri, Oct 24
Allegiant Air Logo
8:33 am - 1:11 pmDEN-TYS
2h 38mnonstop
Allegiant Air Logo
6:30 am - 7:43 amTYS-DEN
3h 13mnonstop
$96Allegiant Air
Find Deal
Thu, Dec 4 - Sun, Dec 7
Frontier Logo
2:43 pm - 7:32 pmDEN-TYS
2h 49mnonstop
Frontier Logo
8:17 pm - 9:39 pmTYS-DEN
3h 22mnonstop
$119Frontier
Find Deal
Mon, Oct 20 - Mon, Oct 27
Frontier Logo
2:43 pm - 7:32 pmDEN-TYS
2h 49mnonstop
Frontier Logo
7:17 pm - 8:34 pmTYS-DEN
3h 17mnonstop
$121Frontier
Find Deal
Sun, Oct 26 - Thu, Oct 30
American Airlines Logo
4:00 pm - 11:50 pmDEN-TYS
5h 50m1 stop
American Airlines Logo
3:03 pm - 8:27 pmTYS-DEN
7h 24m1 stop
$169American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
American Airlines Logo
6:01 am - 11:45 amIAH-TYS
4h 44m1 stop
American Airlines Logo
4:18 pm - 11:18 pmTYS-IAH
8h 00m1 stop
$179American Airlines
Find Deal
Tue, Oct 28 - Sat, Nov 1
United Airlines Logo
9:00 am - 10:49 amIAD-TYS
1h 49mnonstop
United Airlines Logo
2:45 pm - 4:30 pmTYS-IAD
1h 45mnonstop
$179United Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
1:20 pm - 3:15 pmIAD-TYS
1h 55mnonstop
United Airlines Logo
2:45 pm - 4:30 pmTYS-IAD
1h 45mnonstop
$187United Airlines
Find Deal
Thu, Feb 19 - Sat, Feb 21
Delta Logo
6:00 am - 11:07 amIAD-TYS
5h 07m1 stop
Delta Logo
10:05 am - 2:51 pmTYS-IAD
4h 46m1 stop
$199Delta
Find Deal
Wed, Feb 18 - Sat, Feb 21
Delta Logo
5:30 am - 11:45 amIAH-TYS
5h 15m1 stop
Delta Logo
8:45 am - 12:31 pmTYS-IAH
4h 46m1 stop
$207Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13

American Airlines flights from United States to Knoxville

Our best American Airlines deals on United States to Knoxville flight tickets
American Airlines
Oct 25
DEN4:00 pmDenver Intl
5h 50m
1 stop
TYS11:50 pmKnoxville McGhee Tyson
Oct 28
TYS3:03 pmKnoxville McGhee Tyson
7h 24m
1 stop
DEN8:27 pmDenver Intl
American Airlines
Oct 28
IAH6:01 amHouston George Bush Intcntl
4h 44m
1 stop
TYS11:45 amKnoxville McGhee Tyson
Nov 1
TYS4:18 pmKnoxville McGhee Tyson
8h 00m
1 stop
IAH11:18 pmHouston George Bush Intcntl
American Airlines
Nov 11
DEN7:22 amDenver Intl
5h 12m
1 stop
TYS2:34 pmKnoxville McGhee Tyson
Nov 13
TYS6:18 pmKnoxville McGhee Tyson
7h 38m
1 stop
DEN11:56 pmDenver Intl

United Airlines flights from United States to Knoxville

Our best United Airlines deals on United States to Knoxville flight tickets
United Airlines
Feb 18
IAD9:00 amWashington, D.C. Dulles Intl
1h 49m
TYS10:49 amKnoxville McGhee Tyson
Feb 21
TYS2:45 pmKnoxville McGhee Tyson
1h 45m
IAD4:30 pmWashington, D.C. Dulles Intl
United Airlines
Feb 19
IAD1:20 pmWashington, D.C. Dulles Intl
1h 55m
TYS3:15 pmKnoxville McGhee Tyson
Feb 21
TYS2:45 pmKnoxville McGhee Tyson
1h 45m
IAD4:30 pmWashington, D.C. Dulles Intl
United Airlines
Oct 15
ORD8:00 pmChicago O'Hare Intl
1h 50m
TYS10:50 pmKnoxville McGhee Tyson
Oct 19
TYS7:00 amKnoxville McGhee Tyson
1h 55m
ORD7:55 amChicago O'Hare Intl

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 September 25, 2025.
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

Fri 10/17

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Fri 10/24

5:59 pm-7:43 pm

Nonstop1h 44m

$96

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Thu 12/4

8:33 am-1:11 pm

Nonstop2h 38m

Knoxville McGhee Tyson

Sun 12/7

6:30 am-7:43 am

Nonstop3h 13m

$96

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Mon 10/20

2:43 pm-7:32 pm

Nonstop2h 49m

Knoxville McGhee Tyson

Mon 10/27

8:17 pm-9:39 pm

Nonstop3h 22m

$119

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Sun 10/26

2:43 pm-7:32 pm

Nonstop2h 49m

Knoxville McGhee Tyson

Thu 10/30

7:17 pm-8:34 pm

Nonstop3h 17m

$121

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Sat 10/25

4:00 pm-11:50 pm

1 stop5h 50m

Knoxville McGhee Tyson

Tue 10/28

3:03 pm-8:27 pm

1 stop7h 24m

$169

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Tue 10/28

6:01 am-11:45 am

1 stop4h 44m

Knoxville McGhee Tyson

Sat 11/1

4:18 pm-11:18 pm

1 stop8h 00m

$179

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 2/18

9:00 am-10:49 am

Nonstop1h 49m

Knoxville McGhee Tyson

Sat 2/21

2:45 pm-4:30 pm

Nonstop1h 45m

$179

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 2/19

1:20 pm-3:15 pm

Nonstop1h 55m

Knoxville McGhee Tyson

Sat 2/21

2:45 pm-4:30 pm

Nonstop1h 45m

$187

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 2/18

6:00 am-11:07 am

1 stop5h 07m

Knoxville McGhee Tyson

Sat 2/21

10:05 am-2:51 pm

1 stop4h 46m

$199

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Wed 12/10

5:30 am-11:45 am

1 stop5h 15m

Knoxville McGhee Tyson

Sat 12/13

8:45 am-12:31 pm

1 stop4h 46m

$207

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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 January is, on average, the cheapest month to fly to Knoxville from United States, with most prices found around $231. If you aren’t able to travel during the month of January, then book flights to Knoxville from United States during February instead. Flights to Knoxville in February, while not as cheap as those in January, still average around $237.

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 $255. 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 $413.

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 $271. 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 evening when prices are around $359.

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

Fly from Boston Logan Intl 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 3 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

$39

Fastest flight time

1h 34m

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 $39. The best round-trip flight deal from United States to Knoxville found on momondo in the last 72 hours is $82.
The fastest flight from United States to Knoxville takes 1h 34m
Direct flights go from United States to Knoxville every day.
There is 1 airport near Knoxville: 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 $68Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
FrontierPriceFrom $78Free CancellationRating
5.8
3,163 reviews
Search Frontier flights
DeltaPriceFrom $182Free CancellationRating
7.9
7,973 reviews
Search Delta flights
American AirlinesPriceFrom $193Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $233Free CancellationRating
7.4
8,928 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
Crossville
Maryville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Clinton
Jefferson City
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 10/25
Sat 11/1

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