Cheap flights from Knoxville to Great Falls from $329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Great Falls departing on 6/25. 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

Discover deals from 900+ travel sites with momondo.

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? to track prices.

Find the cheapest flights from Knoxville to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:48 am - 1:41 pm
TYS
-
GTF
6h 53m
1 stop
United Airlines Logo
2:37 pm - 10:19 pm
GTF
-
TYS
5h 42m
1 stop
$698United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
8:48 am - 1:41 pm
TYS
-
GTF
6h 53m
1 stop
United Airlines Logo
6:15 am - 10:34 pm
GTF
-
TYS
14h 19m
2 stops
$713United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
7:19 pm - 9:34 pm
TYS
-
GTF
28h 15m
2 stops
United Airlines Logo
6:15 am - 10:34 pm
GTF
-
TYS
14h 19m
2 stops
$727United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
8:48 am - 9:34 pm
TYS
-
GTF
14h 46m
1 stop
United Airlines Logo
2:37 pm - 10:19 pm
GTF
-
TYS
5h 42m
1 stop
$752United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
8:48 am - 9:34 pm
TYS
-
GTF
14h 46m
1 stop
United Airlines Logo
6:15 am - 10:34 pm
GTF
-
TYS
14h 19m
2 stops
$767United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
7:19 pm - 9:34 pm
TYS
-
GTF
28h 15m
2 stops
United Airlines Logo
6:15 am - 10:34 pm
GTF
-
TYS
14h 19m
2 stops
$817United Airlines
Wed, Jul 15 - Wed, Jul 22
United Airlines Logo
10:00 am - 9:34 pm
TYS
-
GTF
13h 34m
2 stops
United Airlines Logo
2:37 pm - 10:19 pm
GTF
-
TYS
5h 42m
1 stop
$863United Airlines
Wed, Jul 15 - Wed, Jul 22
Delta Logo
5:40 am - 12:40 pm
TYS
-
GTF
9h 00m
2 stops
Delta Logo
6:25 pm - 10:11 am
GTF
-
TYS
13h 46m
2 stops
$1,037Delta
Tue, Jun 23 - Fri, Jun 26
United Airlines Logo
12:10 pm - 9:34 pm
TYS
-
GTF
11h 24m
2 stops
United Airlines Logo
2:37 pm - 10:19 pm
GTF
-
TYS
5h 42m
1 stop
$1,055United Airlines
Tue, Jun 23 - Fri, Jun 26
United Airlines Logo
8:48 am - 1:41 pm
TYS
-
GTF
6h 53m
1 stop
United Airlines Logo
12:30 pm - 10:34 pm
GTF
-
TYS
8h 04m
1 stop
$1,067United Airlines
Wed, Jul 15 - Wed, Jul 22

United Airlines flights from Knoxville to Great Falls

Our best United Airlines deals on Knoxville to Great Falls flight tickets
United Airlines
Jul 15
TYS8:48 amKnoxville McGhee Tyson
6h 53m
1 stop
GTF1:41 pmGreat Falls
Jul 22
GTF2:37 pmGreat Falls
5h 42m
1 stop
TYS10:19 pmKnoxville McGhee Tyson
$698
United Airlines
Jul 15
TYS8:48 amKnoxville McGhee Tyson
6h 53m
1 stop
GTF1:41 pmGreat Falls
Jul 22
GTF6:15 amGreat Falls
14h 19m
2 stops
TYS10:34 pmKnoxville McGhee Tyson
$713
United Airlines
Jul 15
TYS7:19 pmKnoxville McGhee Tyson
28h 15m
2 stops
GTF9:34 pmGreat Falls
Jul 22
GTF6:15 amGreat Falls
14h 19m
2 stops
TYS10:34 pmKnoxville McGhee Tyson
$727

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Great Falls 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 May 22, 2026.
Use the filters below to find and compare flights from Knoxville to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

8:48 am-1:41 pm

1 stop6h 53m

Great Falls

Wed 7/22

2:37 pm-10:19 pm

1 stop5h 42m

$698

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

8:48 am-1:41 pm

1 stop6h 53m

Great Falls

Wed 7/22

6:15 am-10:34 pm

2 stops14h 19m

$713

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

7:19 pm-9:34 pm

2 stops28h 15m

Great Falls

Wed 7/22

6:15 am-10:34 pm

2 stops14h 19m

$727

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

8:48 am-9:34 pm

1 stop14h 46m

Great Falls

Wed 7/22

2:37 pm-10:19 pm

1 stop5h 42m

$752

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

8:48 am-9:34 pm

1 stop14h 46m

Great Falls

Wed 7/22

6:15 am-10:34 pm

2 stops14h 19m

$767

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

7:19 pm-9:34 pm

2 stops28h 15m

Great Falls

Wed 7/22

6:15 am-10:34 pm

2 stops14h 19m

$817

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

10:00 am-9:34 pm

2 stops13h 34m

Great Falls

Wed 7/22

2:37 pm-10:19 pm

1 stop5h 42m

$863

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Tue 6/23

5:40 am-12:40 pm

2 stops9h 00m

Great Falls

Fri 6/26

6:25 pm-10:11 am

2 stops13h 46m

$1,037

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Tue 6/23

12:10 pm-9:34 pm

2 stops11h 24m

Great Falls

Fri 6/26

2:37 pm-10:19 pm

1 stop5h 42m

$1,055

KnoxvilleGreat Falls

TYS - GTF

TYSGTF

Knoxville McGhee Tyson

Wed 7/15

8:48 am-1:41 pm

1 stop6h 53m

Great Falls

Wed 7/22

12:30 pm-10:34 pm

1 stop8h 04m

$1,067

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

See travel insights to Great Falls from

How to get the cheapest flight ticket from Knoxville to Great Falls

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 airline that flies from Knoxville McGhee Tyson to Great Falls?

United Airlines is the most popular carrier operating from Knoxville McGhee Tyson to Great Falls

When to book flights from Knoxville to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Great Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Great Falls (TYS to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Great Falls

Fastest flight time

6h 53m

Direct flights

None
The fastest flight from Knoxville to Great Falls takes 6h 53m
There are no direct flights from Knoxville to Great Falls. There are no popular flight routes from Knoxville to Great Falls.

Frequently asked questions about flying from Knoxville to Great Falls

  • How far is Knoxville McGhee Tyson to Great Falls by plane?

    Knoxville McGhee Tyson and Great Falls are 1607.9 mi apart from one another. In terms of flight time, this usually takes a little over 6h 53m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Great Falls Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Great Falls Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Great Falls 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 Knoxville McGhee Tyson Airport to Great Falls Airport.

  • What documentation or ID do you need to fly to Great Falls Airport?

    The travel and health documents required for your trip to Great Falls Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Great Falls Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Knoxville to Great Falls?

Best airlines flying from Knoxville to Great Falls

Compare and see reviews for airlines that fly from Knoxville to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Great Falls?

Finding the right flight to Great Falls from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Great Falls quick and easy, saving you time and money.

Can I find flights from Knoxville to Great Falls with flexible booking policies on momondo?

Flights from Knoxville to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Knoxville to Great Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Great Falls 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
Sun 6/21
Sun 6/28

Find better results for your trip to the United States