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220 € Cheap Flights from Knoxville to Seattle

Compare Knoxville to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from Knoxville to Seattle

Looking for a cheap last-minute deal or the best return flight from Knoxville to Seattle? Find the lowest prices on one-way and return tickets right here.
Seattle.220 € per passenger.Departing Mon, 25 Aug, returning Sat, 30 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Knoxville on Mon, 25 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Sat, 30 Aug, arriving in Knoxville.Price includes taxes and charges.From 220 €, select.
Seattle.237 € per passenger.Departing Mon, 8 Sep, returning Mon, 15 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Knoxville on Mon, 8 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 15 Sep, arriving in Knoxville.Price includes taxes and charges.From 237 €, select.
Seattle.237 € per passenger.Departing Thu, 2 Oct, returning Mon, 6 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Knoxville on Thu, 2 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 6 Oct, arriving in Knoxville.Price includes taxes and charges.From 237 €, select.
Seattle.237 € per passenger.Departing Sun, 28 Sep, returning Thu, 2 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Knoxville on Sun, 28 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Thu, 2 Oct, arriving in Knoxville.Price includes taxes and charges.From 237 €, select.
Seattle.275 € per passenger.Departing Fri, 7 Nov, returning Sun, 9 Nov.Return flight with United.Outbound indirect flight with United, departs from Knoxville on Fri, 7 Nov, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Sun, 9 Nov, arriving in Knoxville.Price includes taxes and charges.From 275 €, select.
Seattle.348 € per passenger.Departing Thu, 31 Jul, returning Sun, 3 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Knoxville on Thu, 31 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Sun, 3 Aug, arriving in Knoxville.Price includes taxes and charges.From 348 €, select.
Seattle.397 € per passenger.Departing Fri, 19 Dec, returning Tue, 30 Dec.Return flight with United.Outbound indirect flight with United, departs from Knoxville on Fri, 19 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 30 Dec, arriving in Knoxville.Price includes taxes and charges.From 397 €, select.
Seattle.411 € per passenger.Departing Thu, 28 Aug, returning Tue, 2 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Knoxville on Thu, 28 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departs from Seattle / Tacoma International on Tue, 2 Sep, arriving in Knoxville.Price includes taxes and charges.From 411 €, select.

Find the cheapest month to fly from Knoxville to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Knoxville to Seattle flights are currently cheapest in August.
Jul
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Aug
from 220 €
Sep
from 237 €
Oct
from 237 €
Nov
from 275 €
Dec
from 397 €
Jan
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Feb
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Mar
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Apr
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May
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Jun
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Alternative Knoxville to Seattle routes

Looking for the cheapest, fastest or easiest route from Knoxville to Seattle? You could fly into the following airports instead.

Knoxville to Seattle: Flight information

The things to know before you go.
Cheapest flight found220 €
Cheapest month to flyAugust

Finding cheap flights from Knoxville to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Knoxville to Seattle is 220 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Knoxville to Seattle. But we found flights with one or more stops from 220 €.
As of July 2025, there are no flights flying from Knoxville to Seattle.
The cheapest month to fly from Knoxville to Seattle is usually August.
If you're flying from Knoxville Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from 220 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Seattle on Monday, 25 August 2025.
No airlines currently offer direct flights between Knoxville Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In July, the average temperature is usually around 17°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Frontier Airlines offers the cheapest flight tickets to Seattle.

Flying from McGhee Tyson Airport (TYS) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is three hours behind Knoxville, where McGhee Tyson Airport is located.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. That way, you can comfortably board your TYS to Seattle flight.

  • If you're heading away during a major holiday or another peak period, give yourself extra time. A good rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • To reach TYS from central Knoxville, it takes about 20 minutes if you're going by car. It's roughly 18 kilometres from the airport to the city centre.

  • Want a leisurely start to your journey? Stay near TYS. Whether you're catching an early flight from McGhee Tyson Airport to Seattle or just don't want to be rushed, these hotels are just the thing:

  • Of the departures from McGhee Tyson Airport, 78.98% land on time at their destination.

  • The address for TYS is 2055 Alcoa Highway.

How to find the cheapest flights from McGhee Tyson Airport (TYS) to Seattle

  • 118 € is currently the best price for a one-way McGhee Tyson Airport to Seattle flight. Return plane tickets start at 220 €. These fares can change based on availability and demand.

  • To find cheap flights from TYS to Seattle, book as early as you can. Airlines generally offer the most competitive fares when flights are first released.

  • The 'Whole month' tool will show you the cheapest tickets from McGhee Tyson Airport to Seattle throughout the entire month. It's an easy way to find a bargain if your travel dates are flexible.

  • You don't need to check back constantly to see if fares have dropped when you create a Price Alert. We'll notify you as soon as there's an extra saving on cheap flights from TYS to Seattle.

  • Select your ideal departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from McGhee Tyson Airport to Seattle by 'Best,' 'Cheapest' or 'Fastest.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. If you're opting for a ride-share or a cab, the drive will take roughly 20 minutes.

  • Travelling by public transport typically takes 55 minutes.

  • Think about booking a hotel close to SEA if you have a late flight from McGhee Tyson Airport to Seattle. Check in to one of these accommodation options and make your first night all about catching up on rest:

  • Travel at your own speed with a Seattle-Tacoma International Airport rental car. Pick up a set of wheels from Thrifty, Europcar or Budget and see more of Seattle and beyond.

  • For the best deal, book your ride from Seattle-Tacoma International Airport around one week in advance of your flight from TYS to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • Central Seattle is about 3 kilometres from Lake Union Sea Plane Base Airport (LKE). Once your flight from McGhee Tyson Airport to Seattle has touched down and you've made your way out of the airport, expect a drive of about 10 minutes.

  • If you choose to travel on public transport, the journey will take you 25 minutes or so.

  • You'll find some great places to drop your things at near LKE. Kick back and get cosy after your TYS to Seattle flight at one of these perfectly located options:

Best time to go to Seattle

  • Carefully consider your dates before securing your flight from McGhee Tyson Airport to Seattle. The city comes alive in high season, but rates are typically higher and major attractions can get crowded. Plan your trip to Seattle in the off-season for a quieter vibe.

  • Book a McGhee Tyson Airport to Seattle plane ticket with a departure in August if you want to experience the city during its warmest month. You can expect temperatures to range from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Search for a cheap ticket from TYS to Seattle around that time if you want to travel in cooler conditions.

More about Seattle

  • After booking your flight from McGhee Tyson Airport to Seattle, choose a hotel that puts you right where the action is. Make one of these accommodation options your base for exploring Seattle:

  • LMN Architects and Greyhound: Bus Station are a couple of top attractions to add to your Seattle to-do list. Keep the adventure rolling by checking out Boeing Radiation Effects Lab.

Explore more of United States

  • Portland is just one of the many places in United States waiting to be explored after you've seen Seattle. Around 241 kilometres away to the south, top sights here include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another essential stop in United States. Experience major highlights starting with Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Plan the rest of your trip from Knoxville to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.