£292 Cheap Flights from Seattle (SEA) to Knoxville (TYS)

View £292 flight on Tue, 21 Apr 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Alcoa - Knoxville Airport (TYS)

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Cheap Flights from Seattle (SEA) to Knoxville (TYS)

Prices were available within the past 7 days and start at £292 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Seattle (SEA) to Knoxville (TYS)

September is typically the cheapest month to fly

From £188 - £749 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Knoxville route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
McGhee Tyson
Distance
3375 km

Compare flights from Seattle to Knoxville easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Knoxville. Operating between them flights per day, 3 airlines cover the route. And fly direct, getting you to McGhee Tyson in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to McGhee Tyson.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to McGhee Tyson (TYS)

The easiest way to view the best deals on flights from Seattle to Knoxville today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to McGhee Tyson start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Knoxville
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Knoxville flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to McGhee Tyson for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Sea-Tac Airport to McGhee Tyson Airport (TYS)?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to Knoxville Airport start from . Book now to score the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Knoxville Airport?
We get that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to Knoxville Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to McGhee Tyson Airport (TYS) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to McGhee Tyson Airport (TYS)?
You'll be up above the clouds for a while, as the flight distance from Seattle - Tacoma Intl. Airport (SEA) to TYS is 3,400 kilometres. Create a playlist of your favourite songs before leaving home to keep yourself entertained during your flight.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to McGhee Tyson Airport (TYS)?
At the moment, no airlines offer direct flights from SEA to TYS. You'll have to book a flight with one or more stops. To score the best price and connections, lock in your airfare well ahead of time.
Are SEA to Knoxville Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from SEA to McGhee Tyson Airport (TYS) can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out! If you'd rather start planning early, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines issue their prices so far in advance. Our suggestion? Check back often as prices are updated frequently.

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