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$399+ Cheap flights from Knoxville (TYS) to the United Kingdom

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Knoxville to United Kingdom

Cheapest flights from Knoxville to United Kingdom
Explore the most affordable flight options available from Knoxville to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:50 amTYS - LHR
2 stops42h 30mAir Canada
Fri 1/96:00 pmLHR - TYS
2 stops30h 27mAir Canada
Deal found 12/10$695
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:45 amTYS - LHR
1 stop20h 10mUnited Airlines
Fri 1/91:25 pmLHR - TYS
2 stops26h 32mUnited Airlines
Deal found 12/10$715
This KAYAK deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:00 amTYS - LHR
1 stop13h 55mLufthansa
Fri 1/912:05 pmLHR - TYS
1 stop12h 22mLufthansa
Deal found 12/10$717
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:50 amTYS - LHR
2 stops42h 30mAir Canada
Thu 1/81:25 pmLHR - TYS
2 stops32h 28mAir Canada
Deal found 12/10$752
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:00 pmTYS - LHR
1 stop11h 40mUnited Airlines
Wed 1/76:00 pmLHR - TYS
2 stops25h 49mUnited Airlines
Deal found 12/10$755
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:00 pmTYS - LHR
1 stop11h 40mUnited Airlines
Thu 1/812:05 pmLHR - TYS
1 stop12h 22mUnited Airlines
Deal found 12/10$772
This Delta deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:27 amTYS - LHR
1 stop19h 38mDelta
Wed 1/78:00 pmLHR - TYS
1 stop20h 12mDelta
Deal found 12/10$814
This Delta deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:27 amTYS - LHR
1 stop19h 38mDelta
Wed 1/78:55 amLHR - TYS
1 stop16h 27mDelta
Deal found 12/10$840
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:45 amTYS - LHR
2 stops21h 45mAir Canada
Tue 1/66:00 pmLHR - TYS
2 stops25h 49mAir Canada
Deal found 12/10$912
This oojo deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:49 amTYS - LHR
2 stops29h 26mBritish Airways
Sun 1/117:00 amLHR - TYS
2 stops18h 56mBritish Airways
Deal found 12/10$930
This Finnair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:40 pmTYS - LHR
1 stop10h 35mMultiple Airlines
Sun 1/119:55 amLHR - TYS
1 stop13h 51mMultiple Airlines
Deal found 12/10$940
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:01 pmTYS - LGW
2 stops17h 54mMultiple Airlines
Fri 1/92:00 pmLGW - TYS
1 stop26h 40mMultiple Airlines
Deal found 12/10$954

Find flight deals from Knoxville to United Kingdom

Keep the following information in mind while searching for Knoxville to United Kingdom flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$561
(Kiwi.com)

One-way from

$399
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$1,006
Provider with most accurate pricing for Knoxville McGhee Tyson-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-London (LON) flights.
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From Knoxville McGhee Tyson to United Kingdom
Search Deals
One-way flight from Knoxville McGhee Tyson to United Kingdom
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($235 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to United Kingdom 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Knoxville to the United Kingdom that are best for you.

Fly from

Knoxville

Fly to

United Kingdom

Route

Depart

Return

Price

KnoxvilleEdinburgh

TYS - EDI

TYSEDI

Knoxville McGhee Tyson

Sat 1/24

4:06 pm-11:50 am

2 stops14h 44m

Edinburgh Turnhouse

Sat 1/31

10:00 am-8:56 pm

2 stops15h 56m

$609

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Mon 1/26

12:55 pm-10:00 am

1 stop16h 05m

London Gatwick

Mon 2/2

2:00 pm-3:57 pm

2 stops54h 57m

$619

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 1/16

9:05 am-10:15 am

1 stop20h 10m

London Heathrow

Tue 1/20

6:50 am-2:49 pm

2 stops36h 59m

$627

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 1/7

11:10 am-6:40 am

2 stops14h 30m

London Heathrow

Wed 1/14

9:00 am-8:52 pm

2 stops16h 52m

$632

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 1/26

2:25 pm-10:25 am

2 stops15h 00m

London Heathrow

Mon 2/2

9:00 am-8:52 pm

2 stops16h 52m

$632

KnoxvilleManchester

TYS - MAN

TYSMAN

Knoxville McGhee Tyson

Fri 1/16

1:59 pm-10:20 am

2 stops15h 21m

Manchester

Mon 1/19

6:10 am-1:24 pm

2 stops36h 14m

$639

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 1/26

9:30 am-7:10 am

3 stops16h 40m

London Heathrow

Mon 2/2

6:00 pm-2:49 pm

2 stops25h 49m

$649

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 1/26

4:00 pm-7:20 am

1 stop10h 20m

London Heathrow

Mon 2/2

11:45 am-6:46 pm

1 stop12h 01m

$654

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 1/7

11:54 am-6:20 am

1 stop13h 26m

London Heathrow

Sun 1/11

3:50 pm-8:43 pm

1 stop33h 53m

$656

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 1/8

4:06 pm-7:50 am

1 stop10h 44m

London Heathrow

Sun 1/11

8:00 pm-11:12 am

1 stop20h 12m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 41 results
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Best time to book a flight from Knoxville to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to the United Kingdom

What is the cheapest month to book a flight from Knoxville to United Kingdom?

Currently, July is the cheapest month in which you can book a flight from Knoxville to United Kingdom (average of $537). Flying from Knoxville to United Kingdom in June is currently the most expensive (average of $908). 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.

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

Find hourly flight availability from Knoxville to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 7% on flights from Knoxville to United Kingdom by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Knoxville to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Knoxville to United Kingdom flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated December 12, 2025.
See what other customers who have flown with Delta, Virgin Atlantic, and United Airlines from Knoxville to the United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
675 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,571 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • What airport do you fly from for flights from Knoxville to United Kingdom?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson (TYS) is the airport most travelers will use when flying to United Kingdom from Knoxville.

  • How long is the flight from Knoxville to United Kingdom?

    For as low as $609, British Airways can have you in United Kingdom from Knoxville in 14h 44m. There are 3869 mi between Knoxville and United Kingdom. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Knoxville to United Kingdom?

    The most popular flight routes from Knoxville to United Kingdom are Knoxville McGhee Tyson - London Heathrow, Knoxville McGhee Tyson - London City and Knoxville McGhee Tyson - London Gatwick.

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

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

  • How can I find direct flights from Knoxville to United Kingdom?

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

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

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

  • What is the cheapest month to book a flight from Knoxville to United Kingdom?

    Currently, July is the cheapest month in which you can book a flight from Knoxville to United Kingdom (average of $537). Flying from Knoxville to United Kingdom in June is currently the most expensive (average of $908). 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.

See more FAQs

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Top 5 airlines flying from Knoxville to United Kingdom

Discover the top 5 airlines that operate flights from Knoxville to United Kingdom. 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$577Average$1,243FlexibilityNo cancel feeOn-time72%
DeltaCheapest$624Average$960FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$649Average$983FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$662Average$902FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$716Average$1,019FlexibilityNo cancel feeOn-time69%

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