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SEA - TYS

$299 Find cheap flights from Seattle to Knoxville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Knoxville departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 6/5
Wed 6/12

Search hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Knoxville, as well as popular online travel agencies
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Knoxville (SEA-TYS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:14 pm - 4:31 pmSEA-TYS
17h 17m1 stop
5:42 pm - 9:28 amTYS-SEA
18h 46m1 stop
$299Frontier
Find Deal
Tue, May 28 - Fri, Aug 2
7:49 pm - 4:42 pmSEA-TYS
17h 53m1 stop
6:17 pm - 9:08 pmTYS-SEA
29h 51m1 stop
$316Frontier
Find Deal
Thu, Jul 4 - Wed, Jul 10
9:30 am - 3:01 pmSEA-TYS
26h 31m1 stop
5:13 pm - 7:04 amTYS-SEA
16h 51m1 stop
$341Frontier
Find Deal
Thu, May 30 - Sat, Jun 1
9:35 am - 11:17 amSEA-TYS
22h 42m2 stops
9:00 am - 8:45 amTYS-SEA
26h 45m2 stops
Thu, May 30 - Sat, Jun 1
6:05 pm - 11:17 amSEA-TYS
14h 12m1 stop
9:00 am - 8:45 amTYS-SEA
26h 45m2 stops
Thu, May 30 - Sat, Jun 1
11:55 pm - 4:10 pmSEA-TYS
13h 15m1 stop
11:42 am - 9:57 pmTYS-SEA
13h 15m1 stop
$366American Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
5:10 am - 9:05 pmSEA-TYS
12h 55m1 stop
11:42 am - 7:48 pmTYS-SEA
11h 06m1 stop
$421American Airlines
Find Deal
Fri, Jun 7 - Tue, Jun 11
11:59 pm - 10:36 pmSEA-TYS
19h 37m1 stop
5:10 pm - 7:57 amTYS-SEA
17h 47m2 stops
$510United Airlines
Find Deal
Wed, May 29 - Sat, Jun 1
6:35 pm - 1:57 pmSEA-TYS
16h 22m2 stops
7:05 pm - 9:47 amTYS-SEA
17h 42m2 stops
$526United Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
7:59 pm - 11:04 amSEA-TYS
12h 05m2 stops
3:57 pm - 9:56 pmTYS-SEA
8h 59m1 stop
$803Alaska Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8

Flights from Seattle to Knoxville - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Knoxville?

The average price of all flights from Seattle to Knoxville clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Knoxville, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Knoxville, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Seattle to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Knoxville is September, where tickets cost $565 on average. On the other hand, the most expensive months are November and June, where the average cost of tickets is $854 and $806 respectively.

How far in advance should I book a flight from Seattle to Knoxville?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Knoxville, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 days before departure.

Good to know

Low season

February

High season

June

Cheapest flight

$299
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Seattle to Knoxville

When to book flights from Seattle to Knoxville

Are your dates flexible? Find out the best times to travel from Seattle to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Knoxville

  • Which kid-friendly options does United Airlines provide on flights from Seattle to Knoxville?

    United Airlines offers a range of kid-friendly options on flights from Seattle to Knoxville, ensuring an enjoyable journey for young travelers. Children can enjoy a variety of entertainment choices, including kid-friendly movies, TV shows, and games on personal seat back screens. Additionally, the airline offers activity kits that contain coloring books, games, and puzzles to keep children engaged during the flight.

  • Which American Airlines layovers are common on flights from Seattle to Knoxville?

    Common layovers on flights from Seattle to Knoxville with American Airlines may include cities such as Dallas-Fort Worth, Charlotte, and Chicago. These layovers often provide convenient connections for passengers traveling between the two cities. For instance, passengers may have a layover in Dallas-Fort Worth International Airport, Charlotte Douglas International Airport, or Chicago O'Hare International Airport before continuing their journey to Knoxville.

  • American Airlines uses which lounges for flights from Seattle to Knoxville?

    American Airlines offers access to several lounges for passengers flying from Seattle to Knoxville. One example is the American Airlines Admirals Club at Seattle-Tacoma International Airport. Another option is the Admirals Club at Knoxville's McGhee Tyson Airport, providing a relaxing environment before the flight. These lounges enhance the overall travel experience for American Airlines' customers on this route.

  • Which ground transportation means can I use from the airport after my flight from Seattle to Knoxville?

    After your flight from Seattle to Knoxville, you can utilize numerous public transportation options from the airport. For instance, you can hop on the McGhee Tyson Airport shuttle service, which provides convenient connections to various destinations within Knoxville. Additionally, there are local bus services like KAT (Knoxville Area Transit) that offer affordable and accessible travel throughout the city.

  • What is the cheapest flight from Seattle to Knoxville?

    In the last 3 days, the lowest price for a flight from Seattle to Knoxville was $538 for a one-way ticket and $299 for a round-trip.

  • Do I need a passport to fly between Seattle and Knoxville?

    No

  • Which airports will I be using when flying from Seattle to Knoxville?

    Seattle and Knoxville are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at Knoxville McGhee Tyson.

  • Which aircraft models fly most regularly from Seattle to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Knoxville?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Knoxville, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Knoxville, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Knoxville are Alaska Airlines and United Airlines. With an average price for the route of $846 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $729 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Seattle with another airline. Booking your flights between Seattle and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SEA to Knoxville

  • United Airlines has specific pet restrictions for flights from Seattle (SEA) to Knoxville (TYS). Only cats and dogs are allowed as in-cabin pets, while other animals must be transported in the cargo hold. In-cabin pets must be small enough to fit comfortably in a carrier under the seat in front of you. The weight limit for pets in the cabin is typically 20 lbs., including the weight of the carrier.
  • Passengers flying United Airlines from Seattle to Knoxville can pre-select their seats. When booking their tickets or managing their reservations online, passengers have the option to choose their preferred seats. By pre-selecting seats, passengers can ensure their desired seating arrangements and enhance their travel experience with United Airlines.
  • United Airlines supports sustainable travel on flights from Seattle to Knoxville by implementing various eco-friendly initiatives. They utilize fuel-efficient aircraft, optimize flight routes to reduce fuel consumption, and encourage passengers to participate in their carbon offset program. By prioritizing sustainability, United Airlines strives to minimize their environmental impact and promote greener travel choices.
  • You can rent a car after your flight from Seattle to Knoxville. There are several rental companies available at Knoxville's McGhee Tyson Airport, including major brands like Hertz, Avis, Enterprise, Budget, and National Car Rental. These companies offer a range of vehicles to pick from, accommodating various budgets and preferences. Simply visit their respective counters at the airport to arrange your rental and explore Knoxville and its surroundings conveniently.
  • Frontier Airlines offers a range of in-flight entertainment amenities on their flights from Seattle to Knoxville, ensuring passengers have an enjoyable journey. Travelers can expect to find a variety of options, such as seat back screens with a selection of movies and TV shows, in-flight magazines to browse through, and even free internet connectivity for those who prefer to stream their own entertainment on personal devices.
See more tips

Top 5 airlines serving from Seattle to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9137 reviews
7.3Entertainment
7.3Food
8.2Boarding
7.9Comfort
8.6Crew
Airline reviews

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

10.0 ExcellentG, May 2024SEA - BOS
Read more about Alaska Airlines reviews

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

No entertainment, food was cookies & juice,water, soda or coffee.

My baggage was in another flight, anit was delayed for one hour.

The maintenance delay was seemingly handled very poorly... Little to no information was provided to the passengers sitting on board for an extended period of time. On a brighter note, at least the cabin crew (flight attendants) did the best they could. They seemingly were provided very little information with regards to the delay. Unless absolutely beyond my control, I can’t imagine buying a ticket on Alaska airlines again, based on this and a previous experience my wife recently had, along with complaints overheard from other passengers.

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

Book cheap flights from Seattle to Knoxville

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Knoxville found on KAYAK in the last 72 hours.
6/28Fri
1 stopAmerican Airlines
14h 18mSEA-TYS
$538
6/27Thu
1 stopAmerican Airlines
10h 22mSEA-TYS
$681
6/28Fri
2 stopsAmerican Airlines
10h 50mSEA-TYS
$931
6/27Thu
2 stopsAmerican Airlines
11h 56mSEA-TYS
$1,071

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Last minute flights from Seattle to Knoxville

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Knoxville that are departing in the next 10 days.
5/10Fri
multi-stopFrontier
8h 22mSEA-TYS
5/13Mon
multi-stopFrontier
8h 11mTYS-SEA
$348
5/11Sat
multi-stopUnited Airlines
14h 44mSEA-TYS
5/15Wed
multi-stopUnited Airlines
12h 16mTYS-SEA
$649
5/8Wed
multi-stopUnited Airlines
14h 44mSEA-TYS
5/14Tue
multi-stopUnited Airlines
17h 27mTYS-SEA
$664
5/11Sat
multi-stopUnited Airlines
27h 25mSEA-TYS
5/15Wed
multi-stopUnited Airlines
12h 16mTYS-SEA
$684
5/8Wed
multi-stopUnited Airlines
14h 44mSEA-TYS
5/14Tue
multi-stopUnited Airlines
28h 58mTYS-SEA
$694
5/10Fri
multi-stopUnited Airlines
24h 34mSEA-TYS
5/16Thu
multi-stopUnited Airlines
11h 39mTYS-SEA
$720
5/10Fri
multi-stopAmerican Airlines
9h 25mSEA-TYS
5/15Wed
multi-stopAmerican Airlines
10h 13mTYS-SEA
$906
5/7Tue
multi-stopAmerican Airlines
9h 25mSEA-TYS
5/14Tue
multi-stopAmerican Airlines
8h 49mTYS-SEA
$956
5/9Thu
multi-stopAmerican Airlines
9h 25mSEA-TYS
5/16Thu
multi-stopAmerican Airlines
10h 23mTYS-SEA
$958
5/9Thu
multi-stopAmerican Airlines
7h 26mSEA-TYS
5/16Thu
multi-stopAmerican Airlines
10h 35mTYS-SEA
$961

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Seattle - Knoxville Flights

Departure:

Seattle (SEA)United States

Destination:

Knoxville (TYS)United States

Return flight deals:

Knoxville - Seattle

Cabin classes: