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$388+ Cheap flights from Knoxville (TYS) to Heathrow (LHR)

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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Knoxville McGhee Tyson to London Heathrow are usually found in February or September, booked 50 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Knoxville to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Heathrow (LHR). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$685
(United Airlines)

One-way from

$388
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$685
Provider with most accurate pricing for Knoxville McGhee Tyson-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-London Heathrow flights.
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From Knoxville McGhee Tyson to London Heathrow
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One-way flight from Knoxville McGhee Tyson to London Heathrow
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Highest demand for flights based on searches. 20% potential increase in price ($248 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Knoxville to Heathrow

Cheapest flights from Knoxville to Heathrow
Explore the most affordable flight options available from Knoxville to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 4/237:00 amTYS - LHR
2 stops18h 30mUnited Airlines
Wed 5/78:45 amLHR - TYS
2 stops19h 00mUnited Airlines
Deal found 2/20$685
This Delta deal was found by Cheapflights users on 2/20. 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 4/225:30 amTYS - LHR
1 stop20h 45mDelta
Thu 5/88:40 amLHR - TYS
2 stops17h 49mDelta
Deal found 2/20$688
This Air Canada deal was found by Cheapflights users on 2/20. 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 4/225:45 amTYS - LHR
2 stops25h 05mAir Canada
Fri 5/95:40 pmLHR - TYS
2 stops34h 27mAir Canada
Deal found 2/20$692
This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 4/2212:32 pmTYS - LHR
1 stop13h 18mBritish Airways
Thu 5/82:25 pmLHR - TYS
1 stop13h 55mBritish Airways
Deal found 2/20$696
This Booking.com deal was found by Cheapflights users on 2/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/225:40 amTYS - LHR
2 stops26h 10mMultiple Airlines
Sat 3/296:30 pmLHR - TYS
2 stops33h 29mMultiple Airlines
Deal found 2/20$751
This Aeromexico deal was found by Cheapflights users on 2/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/35:00 pmTYS - LHR
2 stops36h 15mAir France
Sun 4/2012:25 pmLHR - TYS
2 stops32h 49mAir France
Deal found 2/20$845
This KLM deal was found by Cheapflights users on 2/20. 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.
Sat 3/112:08 pmTYS - LHR
1 stop14h 47mKLM
Sat 3/84:10 pmLHR - TYS
1 stop12h 37mKLM
Deal found 2/20$865
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:35 pmTYS - LHR
2 stops18h 05mLufthansa
Mon 5/268:25 pmLHR - TYS
2 stops32h 34mLufthansa
Deal found 2/20$894
This Scandinavian Airlines deal was found by Cheapflights users on 2/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/225:00 pmTYS - LHR
3 stops21h 50mScandinavian Airlines
Sat 3/296:40 amLHR - TYS
2 stops20h 57mScandinavian Airlines
Deal found 2/20$913
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sat 3/158:02 pmTYS - LHR
1 stop11h 58mAmerican Airlines
Fri 3/211:30 pmLHR - TYS
1 stop14h 33mAmerican Airlines
Deal found 2/19$1,675

Find flights from Knoxville to Heathrow within your budget

Customize your flight search to find flights from Knoxville to Heathrow 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 February 20, 2025.

Fly from

Knoxville

Fly to

Heathrow

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/23

7:00 am-6:30 am

2 stops18h 30m

London Heathrow

Wed 5/7

8:45 am-10:45 pm

2 stops19h 00m

$685

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 4/22

5:30 am-7:15 am

1 stop20h 45m

London Heathrow

Thu 5/8

8:40 am-9:29 pm

2 stops17h 49m

$688

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 4/22

5:45 am-11:50 am

2 stops25h 05m

London Heathrow

Fri 5/9

5:40 pm-11:07 pm

2 stops34h 27m

$692

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 4/22

12:32 pm-6:50 am

1 stop13h 18m

London Heathrow

Thu 5/8

2:25 pm-11:20 pm

1 stop13h 55m

$696

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 4/22

12:55 pm-8:55 am

1 stop15h 00m

London Heathrow

Thu 5/8

9:20 am-6:15 pm

1 stop13h 55m

$703

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 3/22

5:40 am-11:50 am

2 stops26h 10m

London Heathrow

Sat 3/29

6:30 pm-11:59 pm

2 stops33h 29m

$751

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 4/3

5:00 pm-10:15 am

2 stops36h 15m

London Heathrow

Sun 4/20

12:25 pm-4:14 pm

2 stops32h 49m

$845

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 5/13

5:35 pm-4:40 pm

2 stops18h 05m

London Heathrow

Mon 5/26

8:25 pm-11:59 pm

2 stops32h 34m

$894

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 3/22

5:00 pm-6:50 pm

3 stops21h 50m

London Heathrow

Sat 3/29

6:40 am-11:37 pm

2 stops20h 57m

$913

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 3/15

8:02 pm-12:00 pm

1 stop11h 58m

London Heathrow

Fri 3/21

1:30 pm-12:03 am

1 stop14h 33m

$1,675

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 18 results
1
2

Compare providers for flights from Knoxville to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Heathrow in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Heathrow

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

Travel insights for flights from Knoxville to Heathrow

Get recent, data-driven insights about flights from Knoxville to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Knoxville to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Heathrow. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to London Heathrow Airport, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of $661). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of $1,136). 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 LHR?

Find hourly flight availability from Knoxville to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from Knoxville to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight in the afternoon.

What is the cheapest day to fly from Knoxville to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Heathrow. Price data was last updated on September 15, 2024.

Travelers seeking maximum savings on their Knoxville to London Heathrow Airport flight should consider departing on Saturday 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated February 20, 2025.
Read through reviews of airlines operating flights from Knoxville to London, such as Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Heathrow. 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 London Heathrow?

    Knoxville McGhee Tyson (TYS) is the airport you will fly out of if you book a flight from Knoxville to London Heathrow. You should not have trouble finding flights to London Heathrow from McGhee Tyson; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Knoxville airport to London Heathrow. It is only a 11.3 mi journey to McGhee Tyson (TYS) from Knoxville’s city center.

  • What are the cheapest airlines flying from Knoxville to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Knoxville to London Heathrow Airport round-trip from $685. Other airlines that can offer you cheap pricing are Delta, from $688, and Air Canada, from $692. Users have found that United Airlines is 27% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Knoxville to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $471 on British Airways. Other airlines that offer cheap prices include Air Canada from $478 and United Airlines from $496 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Heathrow 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 London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of $661). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of $1,136). 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

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
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Top 5 airlines flying from Knoxville to Heathrow

Discover the top 5 airlines that operate flights from Knoxville to Heathrow. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$654Average$1,262FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$661Average$892FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$661Average$976FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$691Average$959FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$714Average$975FlexibilityNo cancel feeOn-time72%
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