Find Cheap Flights from Knoxville McGhee Tyson to Seattle/Tacoma Intl (TYS - SEA)

Search hundreds of travel sites at once for deals on flights to Seattle/Tacoma Intl

Wed 12/13
Wed 12/20
Any month
Compare vs. KAYAK |

Good to Know

Low Season:
February
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
12%
expected price increase
Average Price:
$537
(avg. price over the last 2 weeks)
Good Deal:
$428
or less (round trip)

When to Book Flights from Knoxville McGhee Tyson to Seattle/Tacoma Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $427 or less.
The cheapest flight from Knoxville McGhee Tyson to Seattle/Tacoma Intl was found 55 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 14% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Knoxville McGhee Tyson to Seattle/Tacoma Intl Flights

How long does a flight from Knoxville McGhee Tyson to Seattle/Tacoma Intl take?
An average nonstop flight takes 7h 46m, covering a distance of 2109 miles.
Which airlines provide the cheapest flights from Knoxville McGhee Tyson to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($394), American Airlines ($395) and Delta ($406).
Do I need a passport to fly between Knoxville McGhee Tyson and Seattle/Tacoma Intl?
No.
What’s the cheapest day of the week to fly Knoxville McGhee Tyson to Seattle/Tacoma Intl?
For Knoxville McGhee Tyson to Seattle/Tacoma Intl, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seattle/Tacoma Intl back to Knoxville McGhee Tyson, the best deals are generally found on Friday, with Tuesday being the most expensive.

Book cheap flights from Knoxville McGhee Tyson to Seattle/Tacoma Intl (round-trip)

Airports
Origin
Knoxville
$394
only
$394
Destination
Seattle
$394
only
$394
Fri, Jun 15
TYS
SEA
9h 04m
Thu, Jun 28
SEA
TYS
10h 01m
Trip: 14 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

PVD
DEN
Good 7.3

There's no "complimentary" snacks on Frontier. Which is fine, their flights are cheap and comfortable and the snacks are affordable. I also don't really appreciate having to pay for a carry on. I knew about this so made sure my bag would be considered a personal item, but I just don't know how I feel about that as a backpack may not even fit under that seat. But again, the flight was cheap. So, I don't know.

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

LAS
SJC
Mediocre 3.3

Small, tight seats

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

Sat, Apr 21
TYS
SEA
7h 46m
Sat, Apr 28
SEA
TYS
7h 31m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LIM
CUZ
Excellent 10.0

They went above and beyond to make my travel experience an enjoyable one.

That they are not more like them on other airline carriers.

CDG
JFK
Excellent 9.3

Crew was lovely. Attentive but not annoying.

Not until the cabin doors closed did I realize the plane didn't have an individual entertainment system.

PVD
PHL
Excellent 10.0

Had no problems. Everything went smoothly thank God.

ORD
SAT
Excellent 10.0

Attendants were so nice as kind

BOG
LIM
Excellent 10.0

Everything was perfect

Everything was good to be honest

Wed, Feb 21
TYS
SEA
10h 05m
Sat, Feb 24
SEA
TYS
8h 58m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14179 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SJC
LAX
Mediocre 2.0

They were very dishonest about everything. We need to be there in Australia on Monday morning for very important event but reached Australia Monday night 8PM. Virgin Australia contatcted out their flight from SJC to LAX through Delta and Delta cancelled flights becaue no-show of Pilot to operate the plan. What a Joke???? We asked them to put us through another carrier to LAX for connecting flight they refused.Very very BAD. It was a big miss for us.. never again Delta/Virgin Australia..............

MEX
JFK
Mediocre 3.6

Nothing really.

Boarding process was horribly handled. Food was inadequate. Stewardess was saccharine. Bathroom door didn’t shut completely. I was told this wasn’t an international flight and therefore no free alcohol. Aero Mexico flight to Mexico City had much better food, free alcohol and more attentive service personnel. Also delays because of equipment problems.

SFO
DTW
Okay 4.0

Arrived.

Late, slow, de-icing in Detroit took nearly an hour!

LHR
JFK
Good 7.0

Delays!

YYZ
YQB
Okay 5.0

They had to change tires before we lelt in Toronto. And we spent more than one hour on the tarmac.

Tue, Jan 9
TYS
SEA
8h 10m
Tue, Jan 16
SEA
TYS
7h 21m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
EWR
Mediocre 2.0

The flight had no pilot assigned to the flight yet the attendants still boarded us. Then we waited on the plane for an hour before exiting the plane. The attendants gave us little information on flight alternatives and when the flight was finally allowed to board again, they did not announce it and so had I not been waiting close by, I would have missed my flight. It was extremely disappointing but not shocking with all the scandals that have occurred this year with American Airlines. I do not recommend flying with them.

MIA
JFK
Mediocre 3.0

New airbus at least

Long boarding time, very long disembarking time. We were told we had to check our bags at the gate when we found there to be enough headroom above us for our bags after.

BOS
MIA
Mediocre 2.0

We left late and then got stuck on the tarmac for almost 45 minutes upon returning.

LAX
SLC
Excellent 8.3

Escape row seat in a non-escape row wasn’t too fun or comfy. Took half the flight to connect to the WiFi to watch movies to discover that the selection was limited and poor selections at that.

JFK
SFO
Excellent 8.3

On time, no problems, free food

3 & 3 configuration

Fri, Mar 2
TYS
SEA
8h 10m
Mon, Mar 5
SEA
TYS
7h 03m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
AKL
Good 6.0

The seats were really bad, it was our first trip on a 787 and I will never do it again. Not as bad as the Airbus from MIA but considering it's 13 hours it was totally rubbish. We normally fly the 777 with Air NZ, after this we will go back to them. The staff, as always were helpfull and pleasant, the plane was quiet but the seats.....

LHR
PHL
Excellent 10.0

The flight attendants were very nice and helpful

Nothing

CDG
JFK
Excellent 9.3

Crew was lovely. Attentive but not annoying.

Not until the cabin doors closed did I realize the plane didn't have an individual entertainment system.

LIM
CUZ
Excellent 10.0

They went above and beyond to make my travel experience an enjoyable one.

That they are not more like them on other airline carriers.

BOG
LIM
Excellent 10.0

Everything was perfect

Everything was good to be honest

Sat, Dec 23
TYS
SEA
9h 45m
Wed, Dec 27
SEA
TYS
6h 31m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25953 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BOS
MIA
Mediocre 2.0

We left late and then got stuck on the tarmac for almost 45 minutes upon returning.

ORD
SAT
Excellent 10.0

Attendants were so nice as kind

LAX
SLC
Excellent 8.3

Escape row seat in a non-escape row wasn’t too fun or comfy. Took half the flight to connect to the WiFi to watch movies to discover that the selection was limited and poor selections at that.

LHR
PHL
Excellent 10.0

The flight attendants were very nice and helpful

Nothing

LAX
AKL
Good 6.0

The seats were really bad, it was our first trip on a 787 and I will never do it again. Not as bad as the Airbus from MIA but considering it's 13 hours it was totally rubbish. We normally fly the 777 with Air NZ, after this we will go back to them. The staff, as always were helpfull and pleasant, the plane was quiet but the seats.....

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.