United Airlines
Knoxville → Seattle
20 Oct 2026, Tue
Cheap flight tickets from Knoxville to Seattle
Wish to buy the cheapest flights from Knoxville to Seattle at the lowest price? We compare prices of Knoxville – Seattle direct flights and flights with stopovers among 750 airlines and agencies. Don't waste your time searching for the lowest airfares on your own. Book your tickets online and take advantage of discounts, special offers and low-cost flight sales. Our full flight timetable will help you find a Knoxville – Seattle flight ticket. To choose the desired flight option, check flight days and ticket availability for a specific date.
To book a ticket online, enter the desired type of flight, number of passengers, class, and departure and arrival dates, then proceed with payment. You will receive an email with your order information.
Knoxville – Seattle flight ticket price
How much does a flight to Seattle from Knoxville cost? How can you buy a cheap plane ticket? We compare ticket prices using the Price Dynamic Service. Here are a few tips:
- Prices depend on the month of departure. We recommend booking first and business class tickets in advance. Economy class tickets should also be purchased early — ideally 2–4 months before departure.
- The cheapest flights TYS – SEA are usually available on Wednesday and Thursday. Prices tend to be higher on weekends.
- It is generally cheaper to buy a round-trip ticket rather than two one-way tickets.
Useful information before you book your travel from Knoxville to Seattle
Our service provides the following information:
- Distance from Knoxville to Seattle
- Airlines operating direct flights from Knoxville to Seattle
- Airlines offering the cheapest tickets from Knoxville to Seattle
- Duration of the Knoxville – Seattle flight
- Departure and arrival airports for Knoxville – Seattle