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$274+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to London Heathrow are usually found in February or September, booked 59 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 June 12, 2025.

Round-trip from

$665
(lastminute.com)

One-way from

$274
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,303
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. 17% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:15 amTYS - LHR
2 stops30h 35mMultiple Airlines
Mon 10/1311:20 amLHR - TYS
2 stops29h 35mMultiple Airlines
Deal found 6/11$551
This lastminute.com deal was found by Cheapflights users on 6/11. 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.
Mon 8/47:43 pmTYS - LHR
2 stops34h 42mVirgin Atlantic
Tue 8/196:15 amLHR - TYS
2 stops18h 51mVirgin Atlantic
Deal found 6/11$665
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 8/2012:00 pmTYS - LHR
1 stop14h 40mUnited Airlines
Wed 8/272:05 pmLHR - TYS
2 stops31h 55mUnited Airlines
Deal found 6/10$673
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:59 amTYS - LHR
1 stop14h 41mBritish Airways
Mon 10/138:15 pmLHR - TYS
2 stops49h 23mBritish Airways
Deal found 6/11$691
This KLM deal was found by Cheapflights users on 6/12. 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.
Wed 8/206:14 pmTYS - LHR
1 stop11h 56mKLM
Wed 8/271:05 pmLHR - TYS
1 stop12h 01mKLM
Deal found 6/12$695
This Ovago deal was found by Cheapflights users on 6/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:25 pmTYS - LHR
1 stop10h 15mLufthansa
Mon 9/88:25 pmLHR - TYS
2 stops31h 10mLufthansa
Deal found 6/9$706
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/162:30 pmTYS - LHR
2 stops22h 10mScandinavian Airlines
Mon 9/296:40 amLHR - TYS
2 stops22h 06mScandinavian Airlines
Deal found 6/11$785
This Air Canada deal was found by Cheapflights users on 6/11. 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 9/169:55 amTYS - LHR
3 stops15h 35mAir Canada
Mon 9/295:40 pmLHR - TYS
3 stops26h 05mAir Canada
Deal found 6/11$828
This Delta deal was found by Cheapflights users on 6/10. 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 7/294:02 pmTYS - LHR
2 stops14h 23mDelta
Mon 8/412:25 pmLHR - TYS
1 stop16h 19mDelta
Deal found 6/10$829

Cheapflights Fare Finder

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 June 12, 2025.
Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

Fly from

Knoxville

Fly to

Heathrow

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 8/4

7:43 pm-11:25 am

2 stops34h 42m

London Heathrow

Tue 8/19

6:15 am-8:06 pm

2 stops18h 51m

$665

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/20

12:00 pm-7:40 am

1 stop14h 40m

London Heathrow

Wed 8/27

2:05 pm-5:00 pm

2 stops31h 55m

$673

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 8/26

5:35 pm-6:30 am

2 stops31h 55m

London Heathrow

Wed 9/3

10:50 am-11:57 pm

2 stops18h 07m

$679

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/20

6:14 pm-11:10 am

1 stop11h 56m

London Heathrow

Wed 8/27

1:05 pm-8:06 pm

1 stop12h 01m

$695

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 9/1

7:25 pm-10:40 am

1 stop10h 15m

London Heathrow

Mon 9/8

8:25 pm-10:35 pm

2 stops31h 10m

$706

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 9/1

6:12 pm-3:25 pm

2 stops16h 13m

London Heathrow

Mon 9/8

8:40 pm-9:13 pm

2 stops29h 33m

$708

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 9/5

5:45 am-9:35 am

2 stops22h 50m

London Heathrow

Mon 9/22

9:30 am-2:40 pm

2 stops34h 10m

$773

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 9/5

4:19 pm-9:20 am

2 stops36h 01m

London Heathrow

Mon 9/22

6:40 am-9:43 pm

2 stops20h 03m

$780

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 9/4

8:31 pm-12:45 pm

1 stop11h 14m

London Heathrow

Mon 12/22

1:10 pm-8:44 pm

1 stop12h 34m

$795

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 7/29

4:02 pm-11:25 am

2 stops14h 23m

London Heathrow

Mon 8/4

12:25 pm-11:44 pm

1 stop16h 19m

$829

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to London Heathrow Airport

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 June 9, 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 58 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 $1,108). 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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from Knoxville to London, such as Delta, KLM and United Airlines. 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
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $665. Other airlines that can offer you cheap pricing are United Airlines, from $673, and KLM, from $695. Users have found that Virgin Atlantic is 26% cheaper than the other options available to this destination.

  • 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 $1,108). 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$661Average$819FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$676Average$928FlexibilityNo cancel feeOn-time69%
DeltaCheapest$693Average$1,211FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$703Average$976FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$768Average$1,110FlexibilityNo cancel feeOn-time72%

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