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Cheap flights from Knoxville to London Heathrow Airport from £272

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
19 Feb — 26 Feb1
1 adult

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 Tuesday or Monday and return on a Monday

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 14 February 2025.

Round-trip from

£529

One-way from

£272

Popular in

June

Cheapest in

February

Average price

£548
British Airways
  • British Airways
  • 3/3-18/3
  • 3 total stops
  • 48h 41m total
  • Knoxville to London
20/5
  • 20/5
  • 3 total stops
  • 26h 25m total
  • Knoxville to London
Highest demand for flights based on searches. 20% potential increase in price (£155 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in February 2025

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 14 February 2025.

Mon 3/318:30TYS - LHR
1 stop9h 50mBritish Airways
Tue 18/307:20LHR - TYS
2 stops38h 51mBritish Airways
Deal found 13/2£529
Mon 3/319:25TYS - LHR
2 stops30h 05mAir Canada
Tue 18/314:30LHR - TYS
2 stops28h 34mAir Canada
Deal found 13/2£530
Mon 3/307:05TYS - LHR
1 stop23h 00mUnited Airlines
Tue 18/315:00LHR - TYS
2 stops28h 04mUnited Airlines
Deal found 13/2£539
Mon 3/312:19TYS - LHR
1 stop14h 01mMultiple Airlines
Tue 18/313:10LHR - TYS
1 stop11h 43mMultiple Airlines
Deal found 13/2£551
Mon 3/312:19TYS - LHR
1 stop18h 46mFinnair
Tue 18/309:50LHR - TYS
1 stop17h 04mFinnair
Deal found 13/2£553
Wed 1/1014:30TYS - LHR
2 stops14h 20mDelta
Fri 10/1006:30LHR - TYS
2 stops16h 47mDelta
Deal found 13/2£662
Thu 15/509:55TYS - LHR
1 stop16h 00mLufthansa
Mon 2/619:30LHR - TYS
2 stops32h 10mLufthansa
Deal found 13/2£698
Fri 9/514:30TYS - LHR
1 stop11h 45mVirgin Atlantic
Tue 29/711:20LHR - TYS
1 stop11h 57mVirgin Atlantic
Deal found 13/2£939
Mon 17/214:07TYS - LHR
2 stops26h 33mScandinavian Airlines
Mon 24/206:40LHR - TYS
2 stops22h 07mScandinavian Airlines
Deal found 12/2£1,041
Thu 20/211:43TYS - LHR
2 stops22h 52mAer Lingus
Sun 2/307:50LHR - TYS
2 stops18h 57mAer Lingus
Deal found 13/2£1,068
Sat 6/919:25TYS - LHR
1 stop10h 45mKLM
Mon 8/913:05LHR - TYS
1 stop12h 35mKLM
Deal found 13/2£1,320
Sat 15/317:53TYS - LHR
1 stop14h 07mAmerican Airlines
Fri 21/310:05LHR - TYS
1 stop11h 58mAmerican Airlines
Deal found 13/2£1,337

Find flights from Knoxville to Heathrow within your budget

Customise 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 858,174 searches. Data last updated 14 February 2025.

Fly from

Knoxville

Fly to

Heathrow

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 3/3

18:30-09:20

1 stop9h 50m

London Heathrow

Tue 18/3

07:20-18:11

2 stops38h 51m

£529

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 3/3

19:25-06:30

2 stops30h 05m

London Heathrow

Tue 18/3

14:30-15:04

2 stops28h 34m

£530

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 3/3

07:05-11:05

1 stop23h 00m

London Heathrow

Tue 18/3

15:00-15:04

2 stops28h 04m

£539

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 3/3

12:19-12:05

1 stop18h 46m

London Heathrow

Tue 18/3

11:45-22:54

1 stop15h 09m

£551

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 15/5

09:55-06:55

1 stop16h 00m

London Heathrow

Mon 2/6

19:30-22:40

2 stops32h 10m

£698

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 13/5

09:55-06:30

3 stops15h 35m

London Heathrow

Mon 26/5

12:05-22:40

2 stops15h 35m

£711

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 9/5

14:30-07:15

1 stop11h 45m

London Heathrow

Tue 29/7

11:20-18:17

1 stop11h 57m

£939

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 15/3

17:53-12:00

1 stop14h 07m

London Heathrow

Fri 21/3

10:05-18:03

1 stop11h 58m

£1,337

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 7/7

16:00-17:40

2 stops20h 40m

London Heathrow

Sun 20/7

21:05-21:45

3 stops29h 40m

£1,621

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 15/5

05:50-07:00

3 stops44h 10m

London Heathrow

Mon 2/6

21:00-14:43

3 stops46h 43m

£2,413

Flights are sorted by cheapest return flights first.

Deals found on 13/2

Showing 1-10 of 15 results
1
2

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 return 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 return flight from Knoxville to Heathrow. Price data was last updated on 7 February 2025.

The price you pay for your flight from Knoxville to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of £112). Flying from Knoxville to London Heathrow Airport in August is currently the most expensive (average of £162). 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 14 February 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 afternoon, which can drop the price by up to 38% versus a flight in the morning.

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 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 14 February 2025.
Read through reviews of airlines operating flights from Knoxville to London, such as Finnair, Virgin Atlantic and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Food

6.7

Entertainment

6.9

Boarding

7.7

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the 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?

    If you book a flight to London Heathrow from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from McGhee Tyson to London Heathrow per day from 1 airline.

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

    British Airways, at £529, was found to be the cheapest airline from Knoxville to London Heathrow Airport.Alternate airlines flying return to your destination include Air Canada and United Airlines. You may be able to fly from Knoxville to London Heathrow Airport for 29% less than the average price by searching for these airlines.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as £412. Users have also found prices from £418 and £2,500 on British Airways and Air Canada, respectively.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of £112). Flying from Knoxville to London Heathrow Airport in August is currently the most expensive (average of £162). 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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