$383+ Cheap flights from Great Falls to Knoxville (GTF - TYS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — TYS
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Great Falls to Knoxville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Great Falls to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Great Falls to KnoxvilleExplore the most affordable flight options available from Great Falls to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Great Falls to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Thu 12/314:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Thu 12/314:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Wed 12/304:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$671
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Fri 1/14:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$715
Best flights from Great Falls to KnoxvilleDiscover carefully curated flight deals from Great Falls to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Great Falls to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Thu 12/314:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
2 stops13h 24m
Thu 12/316:00 am -
2 stops9h 41m
Deal found 11/1![United Airlines logo]()
$703
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Fri 1/110:45 am -
2 stops12h 56m
Deal found 11/1![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Fri 1/110:45 am -
2 stops12h 56m
Deal found 11/1![United Airlines logo]()
$835
Last-minute flights from Great Falls to KnoxvilleDiscover last-minute flight deals from Great Falls to Knoxville. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to Knoxville. Data last updated November 5, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Thu 12/314:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Wed 12/304:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$671
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Thu 12/314:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:37 pm -
1 stop6h 06m
Fri 1/14:55 pm -
1 stop6h 46m
Deal found 11/1![United Airlines logo]()
$715
One-way flights from Great Falls to KnoxvilleSearch for one-way flight options from Great Falls to Knoxville. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Great Falls to Knoxville. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![United Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:20 am -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:35 am -
2 stops9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Delta logo]()
$483
Find flight deals from Great Falls to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) 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 November 5, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $496 (United Airlines) |
One-way from | $383 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Great Falls 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 7,457,451 searches. Data last updated November 5, 2026.
Use the filters below to find and compare flights from Great Falls to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Thu 12/24
6:20 am-3:59 pm
1 stop7h 39m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$383
Quickest round-trip
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Fri 12/25
2:37 pm-10:43 pm
1 stop6h 06m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$383
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Thu 12/24
5:35 am-5:30 pm
2 stops9h 55m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$483
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Fri 12/25
2:37 pm-10:43 pm
1 stop6h 06m
Knoxville McGhee Tyson
Thu 12/31
4:55 pm-9:41 pm
1 stop6h 46m
$496
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Thu 12/24
6:20 am-9:44 pm
2 stops13h 24m
Knoxville McGhee Tyson
Thu 12/31
6:00 am-1:41 pm
2 stops9h 41m
$703
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Fri 12/25
2:37 pm-10:43 pm
1 stop6h 06m
Knoxville McGhee Tyson
Fri 1/1
10:45 am-9:41 pm
2 stops12h 56m
$738
Great FallsKnoxville
GTF Great Falls - TYS Knoxville McGhee Tyson
GTFTYS
Great Falls
Thu 12/24
6:20 am-3:59 pm
1 stop7h 39m
Knoxville McGhee Tyson
Fri 1/1
10:45 am-9:41 pm
2 stops12h 56m
$835
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Great Falls-Knoxville flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Great Falls-Knoxville flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Great Falls-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-Knoxville flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Great Falls to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Great Falls with our price prediction graph.
GTF-TYS
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.
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 November 5, 2026.
Read reviews from past customers who have flown United Airlines from Great Falls to Knoxville. 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.
Comfort
7.3
Crew
8.1
Overall
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Crew
8.1
Overall
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Great Falls to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Morristown
Newport
Bryson City
Crossville
Murphy
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Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
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Top airline flying from Great Falls to Knoxville
Discover the top airline that operate flights from Great Falls 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 7,457,451 searches. Data last updated November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$413 | Average$626 | FlexibilityNo cancel fee | On-time69% |