Cheap flights from London Heathrow Airport to Knoxville from £353
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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
16 Jan — 23 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Knoxville McGhee Tyson are usually found in September or March, booked 60 days in advance, depart on a Monday or Wednesday and return on a Tuesday
Cheap flight deals from Heathrow to Knoxville
Enter your travel dates to find the best prices.
Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 December 2025.
Wed 24/1208:15LHR - TYS
3 stops32h 45mMultiple Airlines
Sat 3/107:15TYS - LHR
2 stops32h 20mMultiple Airlines
Deal found 15/12£892
Wed 24/1207:40LHR - TYS
2 stops17h 11mLufthansa
Sat 3/111:00TYS - LHR
1 stop15h 55mLufthansa
Deal found 15/12£1,235
Best flights from Heathrow to Knoxville
Discover carefully curated flight deals from Heathrow to Knoxville that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 December 2025.
Tue 3/308:15LHR - TYS
2 stops18h 47mBritish Airways
Sun 26/420:44TYS - LHR
1 stop31h 21mBritish Airways
Deal found 16/12£524
Tue 3/308:15LHR - TYS
2 stops18h 47mBritish Airways
Mon 27/411:03TYS - LHR
1 stop18h 17mBritish Airways
Deal found 16/12£524
Tue 3/306:45LHR - TYS
2 stops20h 17mBritish Airways
Wed 29/418:22TYS - LHR
1 stop9h 43mBritish Airways
Deal found 16/12£524
Wed 4/309:55LHR - TYS
1 stop12h 36mBritish Airways
Thu 30/415:03TYS - LHR
1 stop10h 47mBritish Airways
Deal found 16/12£532
Wed 4/309:55LHR - TYS
1 stop12h 36mBritish Airways
Mon 27/418:22TYS - LHR
1 stop13h 08mBritish Airways
Deal found 16/12£532
Wed 4/314:10LHR - TYS
1 stop12h 18mBritish Airways
Sun 26/420:44TYS - LHR
1 stop29h 11mBritish Airways
Deal found 16/12£532
Mon 2/314:10LHR - TYS
1 stop12h 13mBritish Airways
Sun 26/420:44TYS - LHR
1 stop29h 11mBritish Airways
Deal found 16/12£532
Tue 3/311:45LHR - TYS
1 stop12h 23mBritish Airways
Thu 30/415:03TYS - LHR
1 stop13h 02mBritish Airways
Deal found 16/12£532
Sun 1/308:15LHR - TYS
2 stops18h 33mBritish Airways
Sun 26/420:44TYS - LHR
1 stop29h 11mBritish Airways
Deal found 16/12£554
Thu 5/306:55LHR - TYS
2 stops19h 53mBritish Airways
Thu 30/418:22TYS - LHR
1 stop9h 43mBritish Airways
Deal found 16/12£554
Sun 1/308:15LHR - TYS
2 stops18h 33mBritish Airways
Wed 29/418:22TYS - LHR
1 stop9h 43mBritish Airways
Deal found 16/12£554
Sun 1/308:15LHR - TYS
2 stops18h 33mBritish Airways
Mon 27/418:22TYS - LHR
1 stop9h 43mBritish Airways
Deal found 16/12£554
Last-minute flights from Heathrow to Knoxville
Discover last-minute flight deals from Heathrow to Knoxville. Data last updated 17 December 2025 and is based on user searches.
Thu 15/109:00LHR - TYS
2 stops16h 52mUnited Airlines
Tue 19/507:00TYS - LHR
2 stops22h 00mUnited Airlines
Deal found 16/12£611
Thu 15/113:00LHR - TYS
1 stop12h 47mVirgin Atlantic
Tue 19/511:30TYS - LHR
1 stop16h 25mVirgin Atlantic
Deal found 16/12£635
Thu 22/112:35LHR - TYS
1 stop14h 34mBritish Airways
Mon 26/116:00TYS - LHR
1 stop10h 20mBritish Airways
Deal found 16/12£563
Thu 22/106:35LHR - TYS
2 stops17h 52mUnited Airlines
Mon 26/109:05TYS - LHR
1 stop17h 25mUnited Airlines
Deal found 15/12£612
Thu 29/107:40LHR - TYS
2 stops16h 47mLufthansa
Thu 5/213:59TYS - LHR
1 stop10h 56mLufthansa
Deal found 15/12£583
Thu 29/113:40LHR - TYS
2 stops27h 25mMultiple Airlines
Thu 5/209:29TYS - LHR
3 stops18h 46mMultiple Airlines
Deal found 15/12£618
Fri 30/113:40LHR - TYS
3 stops32h 29mMultiple Airlines
Fri 6/207:15TYS - LHR
2 stops25h 10mMultiple Airlines
Deal found 16/12£599
Fri 30/106:40LHR - TYS
2 stops22h 05mScandinavian Airlines
Fri 6/214:37TYS - LHR
2 stops20h 23mScandinavian Airlines
Deal found 16/12£626
One-way flights from Heathrow to Knoxville
Search for one-way flight options from Heathrow to Knoxville. Find affordable one-way fares based on user searches. Data last updated 17 December 2025.
Tue 20/115:15LHR - TYS
3 stops56h 24mMultiple Airlines
Deal found 16/12£353
Thu 15/114:50LHR - TYS
3 stops49h 19mMultiple Airlines
Deal found 16/12£376
Sat 17/114:50LHR - TYS
3 stops33h 33mMultiple Airlines
Deal found 14/12£391
Mon 19/114:50LHR - TYS
3 stops54h 07mMultiple Airlines
Deal found 16/12£403
Fri 8/509:15LHR - TYS
1 stop18h 51mBritish Airways
Deal found 16/12£439
Find flight deals from Heathrow to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). 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 17 December 2025.
Customise your flight search to find flights from Heathrow to Knoxville 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 17 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.
Fly from
Heathrow
Fly to
Knoxville
Route
Depart
Return
Price
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Tue 3/3
08:15-22:02
2 stops18h 47m
Knoxville McGhee Tyson
Sun 26/4
20:44-09:05
1 stop31h 21m
£524
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Tue 3/3
08:15-22:02
2 stops18h 47m
Knoxville McGhee Tyson
Mon 27/4
11:03-10:20
1 stop18h 17m
£524
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Tue 3/3
06:45-22:02
2 stops20h 17m
Knoxville McGhee Tyson
Wed 29/4
18:22-09:05
1 stop9h 43m
£524
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Wed 4/3
09:55-17:31
1 stop12h 36m
Knoxville McGhee Tyson
Thu 30/4
15:03-06:50
1 stop10h 47m
£532
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Wed 4/3
09:55-17:31
1 stop12h 36m
Knoxville McGhee Tyson
Mon 27/4
18:22-12:30
1 stop13h 08m
£532
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Wed 4/3
14:10-21:28
1 stop12h 18m
Knoxville McGhee Tyson
Sun 26/4
20:44-06:55
1 stop29h 11m
£532
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Mon 2/3
14:10-21:23
1 stop12h 13m
Knoxville McGhee Tyson
Sun 26/4
20:44-06:55
1 stop29h 11m
£532
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Tue 3/3
11:45-19:08
1 stop12h 23m
Knoxville McGhee Tyson
Thu 30/4
15:03-09:05
1 stop13h 02m
£532
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Sun 1/3
08:15-21:48
2 stops18h 33m
Knoxville McGhee Tyson
Sun 26/4
20:44-06:55
1 stop29h 11m
£554
LondonKnoxville
LHR - TYS
LHRTYS
London Heathrow
Thu 5/3
06:55-21:48
2 stops19h 53m
Knoxville McGhee Tyson
Thu 30/4
18:22-09:05
1 stop9h 43m
£554
Flights are sorted by cheapest return flights first.
Deals found on 16/12
Showing 1-10 of 17 results
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Best time to book a flight from Heathrow to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Heathrow 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.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Knoxville
Prices
More
How far ahead should I book a flight from London Heathrow Airport to Knoxville?
Use this chart to determine the optimal time to book a return flight from Heathrow to Knoxville. Price data was last updated on 12 December 2025.
The price you pay for your flight from London Heathrow Airport to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 60 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 London Heathrow Airport to Knoxville?
Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £273). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of £560). 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 LHR to TYS?
Find hourly flight availability from Heathrow to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 December 2025.
It’s typically best to fly out from London Heathrow Airport to Knoxville in the evening. Doing so could potentially save you 11% on the flight price compared to flying in the morning, which is usually more expensive.
What’s the top stopover airport for flights from London Heathrow Airport to Knoxville?
Share of one-stop return flights from London Heathrow Airport to Knoxville chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Atlanta (ATL) – chosen by Cheapflights users on 36% of one-stop itineraries from London Heathrow Airport to Knoxville on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Knoxville?
Average return fare for one-stop flights from London Heathrow Airport to Knoxville, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Philadelphia (PHL) is the most affordable one-stop option, with an average return flight price of £599.
What’s the fastest stopover option from London Heathrow Airport to Knoxville?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Knoxville, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 11h 57m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Knoxville?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Knoxville, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 1h 38m.
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated 17 December 2025.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, andUnited Airlines
from London Heathrow Airport to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Knoxville. 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 into for flights to Knoxville from London Heathrow?
If you book a flight to Knoxville from London Heathrow, you will be flying to 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 London Heathrow to McGhee Tyson per day from 6 different airlines.
How long is the flight from London Heathrow Airport to Knoxville?
British Airways can get you from London Heathrow Airport to Knoxville in just under 18h 47m. Your travel time can differ by up to . The distance from London Heathrow Airport to Knoxville is about 4076 mi.
What are the cheapest airlines flying from London Heathrow Airport to Knoxville round-trip?
Currently priced at £457, Lufthansa will fly you from London Heathrow Airport to Knoxville and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and British Airways - these airlines can fly you to your destination from £467 and £477, respectively. These flights start at 33% lower than the current average price 3 months from now.
Can I find deals for business class flights from Heathrow to Knoxville?
Yes. Cheapflights offers flight deals from Heathrow to Knoxville 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 London Heathrow Airport to Knoxville?
Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £273). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of £560). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 17 December 2025.
Discover the top 6 airlines that operate flights from Heathrow to Knoxville. 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 858,174 searches. Data last updated 17 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Knoxville?
Cheapflights helps you search for flights from Heathrow to Knoxville via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Knoxville?
Cheapflights helps you find that perfect flight to Knoxville from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to Knoxville with no change fees?
Yes! Cheapflights helps users easily find flights from Heathrow to Knoxville with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to Knoxville become cheaper?
Yes, Cheapflights offers price alerts on Heathrow to Knoxville flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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