Find out what a flight from Saint Louis to Knoxville might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Knoxville.

$140 is the best price recorded in the last 15 days.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Planning flights between Saint Louis and Knoxville? Don’t forget the airport options

Especially when flying to medium or large cities, it's worth checking all possible airport combinations before booking.

• Airports in Saint Louis: Saint Louis - Lambert is the only airport in this city.
• Airports in Knoxville: Only Knoxville - McGhee Tyson is currently available.

Check for differences in transport costs to and from each airport — they affect your total spend. Choosing the right airport can make a real difference in price and timing.

Customize your flight from Saint Louis to Knoxville

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from Delta, American, United, Expedia, eDreams, and more.

Other popular destinations

Thinking about United States? You might also consider: Las Vegas, Los Angeles, Miami, New York City, Orlando.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.