What is the cheapest airline to fly from Springfield, Illinois to Knoxville round-trip?

American Airlines, at $416, was found to be the cheapest airline from Springfield, Illinois to Knoxville..

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.

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).

What is the cheapest time of day to fly from SPI to TYS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Springfield, Illinois to Knoxville as you normally would.

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.

$416+ Flights from Springfield, IL to Knoxville

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Cheap flight deals from Springfield to Knoxville

Round-trip from	$416 (American Airlines)

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 July 11, 2025.

Thu 8/141:07 pmSPI - TYS

2 stops7h 54mAmerican Airlines

Sat 8/1612:56 pmTYS - SPI

1 stop5h 58mAmerican Airlines

Deal found 7/10

$416

Best flights from Springfield to Knoxville
Discover carefully curated flight deals from Springfield to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2025.

Thu 8/141:07 pmSPI - TYS

2 stops7h 54mAmerican Airlines

Sat 8/1612:56 pmTYS - SPI

1 stop5h 58mAmerican Airlines

Deal found 7/10

$416

Last-minute flights from Springfield to Knoxville
Discover last-minute flight deals from Springfield to Knoxville. Data last updated July 11, 2025 and is based on user searches.

Thu 8/141:07 pmSPI - TYS

2 stops7h 54mAmerican Airlines

Sat 8/1612:56 pmTYS - SPI

1 stop5h 58mAmerican Airlines

Deal found 7/10

$416

Cheapflights Fare Finder

Use the filters below to find and compare flights from Springfield to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpringfieldKnoxville

SPI - TYS

SPITYS

Springfield Capital

Thu 8/14

1:07 pm-10:01 pm

2 stops7h 54m

Knoxville McGhee Tyson

Sat 8/16

12:56 pm-5:54 pm

1 stop5h 58m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

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.

Reviews of airlines servicing Knoxville

Read through reviews of airlines operating flights from Springfield to Knoxville, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

What is the cheapest airline to fly from Springfield, Illinois to Knoxville round-trip?
American Airlines, at $416, was found to be the cheapest airline from Springfield, Illinois to Knoxville..
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.

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Corbin

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Oak Ridge

Murphy

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$416+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Springfield to Knoxville with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Springfield to Knoxville

Round-trip from

Find flight deals from Springfield to Knoxville

Cheapest flights from Springfield to KnoxvilleExplore 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 July 11, 2025.

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 July 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Springfield to Knoxville that are best for you.

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.

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?

Reviews of airlines servicing Knoxville

Read through reviews of airlines operating flights from Springfield to Knoxville, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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 is the cheapest airline to fly from Springfield, Illinois to Knoxville round-trip?

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

How can I find direct flights from Springfield to Knoxville?

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

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

Traveling to a place near Springfield?

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Alternative routes for Springfield to Knoxville

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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 July 11, 2025.