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Cheap flights from Knoxville to Seattle (TYS - SEA) from $142

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. 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.
TYS — SEA
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Knoxville McGhee Tyson to Seattle/Tacoma Intl are usually found in October or September, booked 25 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Knoxville to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$247

One-way from

$221
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 11% potential price drop
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From Knoxville McGhee Tyson to Seattle/Tacoma Intl
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One-way flight from Knoxville McGhee Tyson to Seattle/Tacoma Intl
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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 Sunday. 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 605% by booking at least 26 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 $277.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to Seattle. Flights to Seattle from Knoxville in October are about $635 on average during October, but can be found for as low as $305.

What is the cheapest time of day to fly from TYS to SEA?

It’s typically best to fly out from Knoxville to Seattle in the evening. Doing so could potentially save you 43% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Knoxville to Seattle flights in June & July 2024

Find cheap flight options from Knoxville to Seattle specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Listed are some of the best fares we've found on flights departing from Knoxville to Seattle in 2024. For more flight deals, be sure to check back very soon.
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/137:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/6$286
Sat 6/85:51 pmTYS - SEA
1 stop18h 19mFrontier
Tue 6/188:12 pmSEA - TYS
1 stop19h 35mFrontier
Deal found 6/5$298
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/137:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/4$301
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Fri 6/148:04 amSEA - TYS
1 stop10h 26mFrontier
Deal found 6/4$311
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Wed 6/127:59 amSEA - TYS
1 stop7h 48mFrontier
Deal found 6/4$318
Mon 6/1710:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/207:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/5$322
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Sun 6/168:12 pmSEA - TYS
1 stop22h 27mFrontier
Deal found 6/4$325
Fri 6/710:32 pmTYS - SEA
1 stop14h 54mFrontier
Wed 6/127:59 amSEA - TYS
1 stop7h 48mFrontier
Deal found 6/6$346
Mon 6/176:00 amTYS - SEA
3 stops29h 59mMultiple Airlines
Thu 6/206:50 pmSEA - TYS
1 stop13h 23mMultiple Airlines
Deal found 6/5$358

Knoxville to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Knoxville and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Listed are some of the best fares we've found on flights departing from Knoxville to Seattle in 2024. For more flight deals, be sure to check back very soon.
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/137:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/6$286
Sat 6/85:51 pmTYS - SEA
1 stop18h 19mFrontier
Tue 6/188:12 pmSEA - TYS
1 stop19h 35mFrontier
Deal found 6/5$298
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/137:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/4$301
Sat 9/711:09 amTYS - SEA
1 stop15h 00mAmerican Airlines
Wed 9/116:00 amSEA - TYS
1 stop13h 08mAmerican Airlines
Deal found 6/5$307
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Fri 6/148:04 amSEA - TYS
1 stop10h 26mFrontier
Deal found 6/4$311
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Wed 6/127:59 amSEA - TYS
1 stop7h 48mFrontier
Deal found 6/4$318
Mon 6/1710:41 pmTYS - SEA
1 stop12h 58mFrontier
Thu 6/207:49 pmSEA - TYS
1 stop22h 41mFrontier
Deal found 6/5$322
Mon 6/1010:41 pmTYS - SEA
1 stop12h 58mFrontier
Sun 6/168:12 pmSEA - TYS
1 stop22h 27mFrontier
Deal found 6/4$325
Thu 9/1911:09 amTYS - SEA
1 stop12h 43mAmerican Airlines
Tue 9/2411:59 pmSEA - TYS
1 stop13h 08mAmerican Airlines
Deal found 6/5$337

Knoxville to Seattle flights leaving soon

Find last-minute flight options from Knoxville to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
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.
Tue 6/117:00 amTYS - SEA
1 stop18h 23mUnited Airlines
Sat 6/155:10 pmSEA - TYS
1 stop14h 04mUnited Airlines
Deal found 6/4$762
Tue 6/117:05 pmTYS - SEA
1 stop8h 54mUnited Airlines
Sun 6/1611:59 pmSEA - TYS
1 stop19h 37mUnited Airlines
Deal found 6/4$823
Tue 6/115:10 pmTYS - SEA
1 stop8h 33mUnited Airlines
Fri 6/145:10 pmSEA - TYS
1 stop14h 05mUnited Airlines
Deal found 6/4$868
Tue 6/115:40 pmTYS - SEA
1 stop7h 43mUnited Airlines
Wed 6/128:58 amSEA - TYS
1 stop10h 32mUnited Airlines
Deal found 6/4$876
Tue 6/116:35 amTYS - SEA
1 stop7h 10mDelta
Thu 6/131:55 pmSEA - TYS
1 stop6h 58mDelta
Deal found 6/4$1,108

One-way flights to Seattle from Knoxville

Search for one-way flight options from Knoxville to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
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.
Mon 9/306:49 pmTYS - SEA
2 stops21h 32mMultiple Airlines
Deal found 6/5$142
Mon 9/306:49 pmTYS - SEA
3 stops24h 13mMultiple Airlines
Deal found 6/5$172
Mon 7/1510:40 pmTYS - SEA
1 stop12h 58mFrontier
Deal found 6/5$183
Mon 7/154:49 pmTYS - SEA
3 stops26h 26mMultiple Airlines
Deal found 6/5$189
Mon 9/306:17 pmTYS - SEA
1 stop17h 20mFrontier
Deal found 6/5$212
Mon 7/1510:40 pmTYS - SEA
1 stop12h 58mFrontier
Deal found 6/5$213
Mon 7/2210:40 pmTYS - SEA
1 stop12h 58mFrontier
Deal found 6/5$221
Mon 7/156:55 amTYS - SEA
2 stops18h 58mMultiple Airlines
Deal found 6/5$244
Wed 7/175:00 pmTYS - SEA
1 stop9h 59mDelta
Deal found 6/5$274

Find flights from Knoxville to Seattle within your budget

Customize your flight search to find flights from Knoxville to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$307 - $481

Route

Depart

Return

Price

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Sat 9/7

1 stop15h 00m

Seattle/Tacoma Intl

Wed 9/11

1 stop13h 08m

$307

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 6/17

1 stop12h 58m

Seattle/Tacoma Intl

Thu 6/20

1 stop22h 41m

$322

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 9/19

1 stop12h 43m

Seattle/Tacoma Intl

Tue 9/24

1 stop13h 08m

$337

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 8/26

1 stop17h 20m

Seattle/Tacoma Intl

Tue 9/3

1 stop28h 40m

$343

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 7/10

2 stops13h 50m

Seattle/Tacoma Intl

Mon 7/22

2 stops19h 50m

$346

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Mon 6/17

3 stops29h 59m

Seattle/Tacoma Intl

Thu 6/20

1 stop13h 23m

$358

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Thu 8/22

1 stop13h 21m

Seattle/Tacoma Intl

Fri 8/30

1 stop12h 07m

$367

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Wed 7/10

2 stops13h 50m

Seattle/Tacoma Intl

Mon 7/22

1 stop12h 07m

$373

Knoxville McGhee TysonSeattle/Tacoma Intl

TYS - SEA

TYSSEA

Knoxville McGhee Tyson

Tue 8/20

1 stop14h 52m

Seattle/Tacoma Intl

Sat 8/24

2 stops21h 40m

$481

Flights are sorted by cheapest first

Deals found on 6/5

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Seattle. Price data was last updated on May 31, 2024.
The best time to book flights from Knoxville to Seattle is 25 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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What is the cheapest day to fly from Knoxville to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Seattle. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Knoxville to Seattle flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Knoxville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

41 - 66.2 °F

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated June 6, 2024.
Peruse reviews from past customers who have flown with American Airlines, Frontier and United Airlines 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.
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Alaska Airlines
8.1
Very good
9,222 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Delta
8.0
Very good
10,368 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

United Airlines
7.4
Good
10,696 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

American Airlines
7.3
Good
14,227 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Frontier
6.2
Okay
3,985 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

There were no major issues. A bit of delay but it was understandable. It was a good experience otherwise.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Knoxville to Seattle for under $400 on Cheapflights?

    Yes, there are multiple flights from Knoxville to Seattle for under $400. The cheapest flight booked recently is on American Airlines for just $307, but on average you can expect to pay $378.

  • Are there last-minute flights available from Knoxville to Seattle for under $800?

    There are currently 5+ open flights from Knoxville to Seattle within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Knoxville to Seattle round-trip?

    According to our current data, American Airlines ($307), and Frontier ($322) offers the cheapest pricing from Knoxville to Seattle. These flights start at 51% 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 $183 on Frontier. Other airlines that offer cheap prices include Delta from $274 and United Airlines from $329 one-way.

  • 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.

  • Can I find deals for flights from Knoxville to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Knoxville to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Knoxville to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Knoxville to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Knoxville to Seattle that include hotel bookings?

    Yes. In addition to deals on Knoxville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Seattle.

  • Can I find deals for business class flights from Knoxville to Seattle?

    Yes. Cheapflights offers flight deals from Knoxville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Knoxville to Seattle that allow pets onboard?

    Many airlines flying from Knoxville to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Knoxville to Seattle?

    Yes, you can often find last-minute deals on Knoxville to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Knoxville to Seattle flight deals updated?

    The Knoxville to Seattle flight deals you see on this page were last updated on 6/6.

  • 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 is the cheapest month to book a flight from Knoxville to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Seattle (average of $247). Flying from Knoxville to Seattle in July is currently the most expensive (average of $406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Knoxville to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Knoxville to Seattle

Discover the top 5 airlines that operate flights from Knoxville to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$120Average$306FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$421Average$697FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$425Average$642FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$466Average$780FlexibilityNo cancel feeOn-time75%
DeltaCheapest$498Average$733FlexibilityNo cancel feeOn-timeN/A
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Search flights from Knoxville to Seattle by cabin class

Find flights from Knoxville to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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