Cheap flights from Knoxville to Seattle (TYS - SEA) from $98
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
The best prices from Knoxville McGhee Tyson to Seattle/Tacoma Intl are usually found in April or February, booked 60 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
How to find the cheapest flight from Knoxville (TYS) to Seattle (SEA)
All the information you need to plan the best TYS to SEA flight in 2023: compare Knoxville to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
Popular in | July |
|---|---|
Cheapest in | April |
Round-trip from | $237 |
One-way from | $115 |
TYS - SEA Price | $237 - $457 |
|---|---|
SEA Temperature | 41 - 66.2 °F |
SEA Rainfall | 0.7 - 6.6 inches |
What is the cheapest day to fly round-trip from Knoxville to Seattle?
Flights from Knoxville to Seattle are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.
How far in advance should I book a flight from Knoxville to Seattle?
Find a great deal and save up to 23% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Knoxville to Seattle within the next two weeks, with the cheapest ticket starting at $717.
What is the cheapest month to fly from Knoxville to Seattle?
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, April can be a great choice for travel to Seattle. Flights to Seattle from Knoxville in April are about $618 on average during April, but can be found for as low as $380.
When is the cheapest time to fly from Knoxville to Seattle (TYS - SEA)?
It’s typically best to fly out from Knoxville to Seattle in the evening. Doing so could potentially save you 62% on the flight price compared to flying at noon, which is usually more expensive.
Cheap Frontier flights from Knoxville to Seattle
Take a peek at the cheapest Frontier flights we've detected traveling from Knoxville to Seattle. Come back soon if you're not finding the exact deal you're looking for.
Cheap United Airlines flights from Knoxville to Seattle
Take a gander at the lowest prices we've found on United Airlines flights from Knoxville to Seattle. Deals are refreshing constantly so come back soon for more options.
Cheap Knoxville to Seattle flights in September & October 2023
The best prices found for TYS to SEA flights for September, October
Listed are some of the best fares we've found on flights departing from Knoxville to Seattle in 2023. For more flight deals, be sure to check back very soon.
Knoxville to Seattle 2023 flight deals
Cheap flights to Seattle from Knoxville found for this year
Listed are some of the best fares we've found on flights departing from Knoxville to Seattle in 2023. For more flight deals, be sure to check back very soon.
Knoxville to Seattle flights leaving soon
Late deals on return flights to Seattle from Knoxville, departing today and this week
Consider one of these great deals we found on last-minute flights from Knoxville to Seattle. Users should examine the flight details to ensure there are no surprises.
One-way flights to Seattle from Knoxville
The cheapest one-way flights from Knoxville to Seattle
Users traveling one-way from Knoxville to Seattle can select one of these great deals. Users can also find round-trip Knoxville to Seattle flights by using the search form above.
Find flights from Knoxville to Seattle within your budget
Use the slider to find flights from Knoxville to Seattle that fit your budget.
Fly from
Fly to
Budget
$198 - $573
Route
Depart
Return
Price
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Wed 1/3
1 stop16h 47m
Seattle/Tacoma Intl
Sat 1/13
1 stop14h 53m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Mon 11/13
1 stop31h 07m
Seattle/Tacoma Intl
Thu 11/16
1 stop14h 30m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Thu 10/26
1 stop11h 30m
Seattle/Tacoma Intl
Fri 11/3
2 stops21h 53m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Thu 11/9
1 stop11h 30m
Seattle/Tacoma Intl
Thu 11/16
1 stop13h 30m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Sat 10/14
1 stop30h 02m
Seattle/Tacoma Intl
Thu 11/2
1 stop19h 02m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Fri 10/13
1 stop7h 45m
Seattle/Tacoma Intl
Sat 10/21
1 stop11h 15m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Fri 10/20
1 stop17h 56m
Seattle/Tacoma Intl
Wed 10/25
1 stop13h 12m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Tue 1/9
1 stop18h 39m
Seattle/Tacoma Intl
Tue 1/16
1 stop18h 16m
Knoxville McGhee TysonSeattle/Tacoma Intl
TYS - SEA
TYSSEA
Knoxville McGhee Tyson
Wed 11/22
1 stop10h 13m
Seattle/Tacoma Intl
Mon 11/27
1 stop8h 26m
Reviews of airlines servicing Seattle
Peruse reviews from past customers who have flown with Frontier, United Airlines and Delta from Knoxville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Food
Entertainment
Overall
Comfort
Boarding
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Crew
Food
Entertainment
Overall
Comfort
Boarding
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Crew
Food
Entertainment
Overall
Comfort
Boarding
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Crew
Food
Entertainment
Overall
Comfort
Boarding
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Crew
Food
Entertainment
Overall
Comfort
Boarding
Reviews
It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Related info for your journey
Useful info, stats and facts about Knoxville to Seattle flights.
Can I find flights from Knoxville to Seattle for under $200 on Cheapflights?
Yes, there are multiple flights from Knoxville to Seattle for under $200. The cheapest flight booked recently is on Frontier for just $198, but on average you can expect to pay $358.
Are there last-minute flights available from Knoxville to Seattle for under $600?
There are currently 20+ open flights from Knoxville to Seattle within the next 7 days for less than $600.
How popular is this Knoxville to Seattle flight route?
Within the past month, 14 users have taken a look at flights from Knoxville McGhee Tyson to Seattle/Tacoma Intl.
What are the cheapest airlines flying from Knoxville to Seattle round-trip?
According to our current data, Frontier ($198), American Airlines ($403), and United Airlines ($435) offers the cheapest pricing from Knoxville to Seattle. These flights start at 67% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Knoxville to Seattle one-way?
One-way options have recently been found by users for as low as $98 on Frontier. Other airlines that offer cheap prices include American Airlines from $213 and United Airlines from $453 one-way.
What are the most popular airlines that fly from Knoxville to Seattle?
The most popular airlines flying from Knoxville to Seattle are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.
What does TYS to SEA mean?
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Knoxville McGhee Tyson Airport to Seattle/Tacoma Intl Airport flight would often be abbreviated as a TYS to SEA flight.
Other flights from Knoxville
Flights to Seattle from Knoxville
Alternative routes for Knoxville to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Knoxville to Seattle
The chart below displays the airlines Cheapflights users traveling from Knoxville to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
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