Cheap flights from Seattle to Knoxville from $136
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Knoxville departing on 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Seattle to Knoxville
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Knoxville?
The month of April is, on average, the cheapest month to fly to Knoxville from Seattle, with most prices found around $561. If you aren’t able to travel during the month of April, then book flights to Knoxville from Seattle during May instead. Flights to Knoxville in May, while not as cheap as those in April, still average around $561.
What is the cheapest day to depart on your flight to Knoxville?
The cheapest day to depart from Seattle to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $596. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Knoxville for around $758.
What is the cheapest time of day to depart on your flight to Knoxville?
In the afternoon is the cheapest time of day to fly from Seattle to Knoxville when you can find flight prices for as low as $189. Flying to Knoxville in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $656.
How far in advance should I book a flight to Knoxville?
You are more likely to see cheaper flights to Knoxville from Seattle when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $645 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Seattle for as low as $497 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Knoxville McGhee Tyson?
Delta, American Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Knoxville McGhee Tyson
What airlines fly to Knoxville?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Knoxville from Seattle according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 4 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Knoxville
Cheap Seattle to Knoxville (SEA to TYS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Knoxville
How far is Seattle/Tacoma Intl to Knoxville McGhee Tyson by plane?
Seattle/Tacoma Intl and Knoxville McGhee Tyson are 2108.9 mi apart from one another. In terms of flight time, this usually takes a little over 6h 57m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport?
As of June 2025, there are 4 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Knoxville McGhee Tyson Airport.
What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?
The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Seattle to Knoxville?
Based on momondo bookings for flights between Seattle and Knoxville, the leading airline is American Airlines, making up 57% of the total bookings. Other popular airlines include United Airlines with 18%, Delta with 18%, and Frontier with 7%.
Best airlines flying from Seattle to Knoxville
Compare and see reviews for airlines that fly from Seattle to Knoxville with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $164 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $358 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $460 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $460 | Free Cancellation | Rating 8.0 7,946 reviews |
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Knoxville?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Knoxville. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Knoxville with flexible booking policies on momondo?
momondo does allow users to show only those flights to Knoxville from Seattle which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Seattle to Knoxville?
momondo provides multiple filters to help you find the best flight to Knoxville from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Knoxville right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from Seattle and alert you when they change.