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$348+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find 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 octubre 28, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/42:27 pmTYS - LHR
1 stop10h 58mDelta
mar. 11/116:20 amLHR - TYS
2 stops18h 40mDelta
Deal found 10/28$591
This Delta deal was found by Cheapflights users on 10/27. 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.
mar. 10/287:11 amTYS - LHR
1 stop20h 39mDelta
mar. 11/411:30 amLHR - TYS
2 stops16h 52mDelta
Deal found 10/27$592
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/283:48 pmTYS - LHR
1 stop13h 12mKLM
mar. 11/48:55 amLHR - TYS
1 stop12h 35mKLM
Deal found 10/27$599
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 10/281:52 pmTYS - LHR
2 stops17h 13mUnited Airlines
mar. 11/46:35 amLHR - TYS
2 stops18h 45mUnited Airlines
Deal found 10/27$623
This United Airlines deal was found by Cheapflights users on 10/26. 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.
mié. 12/107:25 pmTYS - LHR
1 stop10h 25mUnited Airlines
mié. 12/178:30 amLHR - TYS
2 stops30h 45mUnited Airlines
Deal found 10/26$631
This Delta deal was found by Cheapflights users on 10/28. 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.
jue. 11/272:49 pmTYS - LHR
1 stop15h 51mDelta
jue. 12/46:20 amLHR - TYS
2 stops18h 40mDelta
Deal found 10/28$641
This Delta deal was found by Cheapflights users on 10/26. 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.
mié. 10/2910:25 amTYS - LHR
1 stop16h 00mDelta
lun. 11/311:30 amLHR - TYS
2 stops17h 16mDelta
Deal found 10/26$642
This KLM deal was found by Cheapflights users on 10/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/293:48 pmTYS - LHR
1 stop12h 02mKLM
lun. 11/311:45 amLHR - TYS
2 stops14h 28mKLM
Deal found 10/28$643
This United Airlines deal was found by Cheapflights users on 10/28. 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.
jue. 11/279:50 amTYS - LHR
2 stops16h 20mUnited Airlines
jue. 12/46:35 amLHR - TYS
2 stops17h 54mUnited Airlines
Deal found 10/28$644
This lastminute.com deal was found by Cheapflights users on 10/27. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/276:05 pmTYS - BHX
2 stops34h 25mVirgin Atlantic
mié. 12/38:50 pmBHX - TYS
2 stops49h 19mVirgin Atlantic
Deal found 10/27$647
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/24:38 pmTYS - GLA
2 stops15h 27mAmerican Airlines
dom. 12/146:35 amGLA - TYS
2 stops18h 08mAmerican Airlines
Deal found 10/27$659
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mar. 11/41:52 pmTYS - LCY
2 stops18h 03mMultiple Airlines
mar. 11/119:50 amLCY - TYS
2 stops19h 09mMultiple Airlines
Deal found 10/28$664

Cheap 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$591
(Delta)

One-way from

$348
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$795
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. 17% potential increase in price ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 octubre 28, 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

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mar. 12/2

7:59 pm-11:40 am

1 stop10h 41m

London Heathrow

mié. 12/10

6:20 am-8:00 pm

2 stops18h 40m

$591

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

jue. 11/27

9:50 am-7:10 am

2 stops16h 20m

London Heathrow

jue. 12/4

6:35 am-7:29 pm

2 stops17h 54m

$644

KnoxvilleBirmingham

TYS - BHX

TYSBHX

Knoxville McGhee Tyson

jue. 11/27

6:05 pm-9:30 am

2 stops34h 25m

Birmingham

mié. 12/3

8:50 pm-5:09 pm

2 stops49h 19m

$647

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

jue. 11/27

3:53 pm-7:50 am

1 stop10h 57m

London Heathrow

jue. 12/4

3:50 pm-11:28 pm

1 stop12h 38m

$649

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mié. 12/10

10:50 am-5:55 am

1 stop14h 05m

London Heathrow

mié. 12/17

7:40 am-5:11 pm

1 stop14h 31m

$649

KnoxvilleEdinburgh

TYS - EDI

TYSEDI

Knoxville McGhee Tyson

mié. 1/21

11:10 am-7:55 am

2 stops15h 45m

Edinburgh Turnhouse

dom. 2/1

9:25 am-7:27 pm

2 stops15h 02m

$668

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

vie. 12/12

10:50 am-6:40 am

2 stops14h 50m

London Heathrow

vie. 12/19

4:20 pm-2:48 pm

1 stop27h 28m

$679

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

mar. 12/2

7:25 pm-4:40 pm

2 stops16h 15m

London City

mié. 12/10

9:50 am-10:48 am

2 stops29h 58m

$680

KnoxvilleBirmingham

TYS - BHX

TYSBHX

Knoxville McGhee Tyson

jue. 11/27

9:50 am-12:35 pm

3 stops21h 45m

Birmingham

mié. 12/3

6:00 am-7:29 pm

3 stops18h 29m

$691

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mar. 12/30

6:27 am-7:05 am

1 stop19h 38m

London Heathrow

mié. 1/7

1:00 pm-8:47 pm

1 stop12h 47m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 49 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 $505). 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 octubre 28, 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 octubre 28, 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
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,995 reviews
Delta
7.9
Good
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Virgin Atlantic
7.5
Good
670 reviews
Delta
7.9
Good
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,996 reviews
Delta
7.9
Good
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,033 reviews
Delta
7.9
Good
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,481 reviews
Delta
7.9
Good
7,995 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $591, Delta can have you in United Kingdom from Knoxville in 10h 41m. There are 4076 mi between Knoxville and United Kingdom. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Knoxville to United Kingdom one-way?

    The cheapest airline one-way is Virgin Atlantic, with whom users have recently found tickets for as low as $418. However, be on the lookout for offers from United Airlines and Lufthansa, as they are both options that can get you from Knoxville to United Kingdom for a low price.

  • 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 - Glasgow Intl and Knoxville McGhee Tyson - Edinburgh Turnhouse.

  • 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 $505). 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$572Average$1,106FlexibilityNo cancel feeOn-time72%
DeltaCheapest$624Average$980FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$649Average$965FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$662Average$907FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$732Average$1,022FlexibilityNo cancel feeOn-time69%

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