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$257+ Cheap flights from Springfield, IL to Knoxville (SPI - 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
SPI — TYS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Springfield to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Springfield (SPI) 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 June 12, 2025.

Round-trip from

$257
(Mytrip)
From Springfield Capital to Knoxville McGhee Tyson
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Find flight deals from Springfield to Knoxville

Cheapest flights from Springfield to Knoxville
Explore the most affordable flight options available from Springfield to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/258:09 pmSPI - TYS
1 stop20h 09mAllegiant Air
Fri 8/19:02 amTYS - SPI
1 stop11h 17mAllegiant Air
Deal found 6/11$257
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/258:09 pmSPI - TYS
1 stop20h 09mMultiple Airlines
Fri 8/16:55 amTYS - SPI
2 stops26h 50mMultiple Airlines
Deal found 6/11$382
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:56 pmSPI - TYS
1 stop5h 35mAmerican Airlines
Sun 11/96:00 amTYS - SPI
2 stops9h 16mAmerican Airlines
Deal found 6/12$436

Cheapflights Fare Finder

Customize your flight search to find flights from Springfield 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Springfield to Knoxville that are best for you.

Fly from

Springfield

Fly to

Knoxville

Route

Depart

Return

Price

SpringfieldKnoxville

SPI - TYS

SPITYS

Springfield Capital

Fri 7/25

8:09 pm-5:18 pm

1 stop20h 09m

Knoxville McGhee Tyson

Fri 8/1

9:02 am-7:19 pm

1 stop11h 17m

$257

SpringfieldKnoxville

SPI - TYS

SPITYS

Springfield Capital

Fri 7/25

8:09 pm-5:18 pm

1 stop20h 09m

Knoxville McGhee Tyson

Fri 8/1

6:55 am-8:45 am

2 stops26h 50m

$382

SpringfieldKnoxville

SPI - TYS

SPITYS

Springfield Capital

Fri 11/7

2:56 pm-9:31 pm

1 stop5h 35m

Knoxville McGhee Tyson

Sun 11/9

6:00 am-2:16 pm

2 stops9h 16m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Springfield to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Springfield 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.

Cheapflights Insights

Everything you need to know about your flight from Springfield to Knoxville

What is the cheapest month to book a flight from Springfield, Illinois to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Springfield, Illinois to Knoxville (average of $296). Flying from Springfield, Illinois to Knoxville in March is currently the most expensive (average of $376). 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.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Allegiant Air
7.3
Good
725 reviews

Crew

8.1

Overall

7.3

Boarding

7.6

Comfort

6.8

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.
Allegiant Air
7.3
Good
725 reviews
Allegiant Air
7.3
Good
725 reviews

Crew

8.1

Overall

7.3

Boarding

7.6

Comfort

6.8

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.
American Airlines
7.2
Good
10,000 reviews
Allegiant Air
7.3
Good
725 reviews

Crew

8.1

Overall

7.3

Boarding

7.6

Comfort

6.8

Food

5.9

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.

Related info for your journey

Find useful and relevant information for your journey from Springfield to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Springfield, Illinois to Knoxville round-trip?

    Allegiant Air, at $257, was found to be the cheapest airline from Springfield, Illinois to Knoxville. An alternate airline flying to your destination would be American Airlines.

  • Can I find deals for flights from Springfield to Knoxville that include hotel bookings?

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

  • How can I find direct flights from Springfield to Knoxville?

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

  • Can I find deals for business class flights from Springfield to Knoxville?

    Yes. Cheapflights offers flight deals from Springfield to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Springfield, Illinois to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Springfield, Illinois to Knoxville (average of $296). Flying from Springfield, Illinois to Knoxville in March is currently the most expensive (average of $376). 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

Traveling to a place near Springfield?

Book flights to Springfield if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

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Top airline flying from Springfield to Knoxville

Discover the top airline that operate flights from Springfield 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$396Average$742FlexibilityNo cancel feeOn-time71%

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