$337+ Cheap flights from Knoxville (TYS) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Heathrow
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Best
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One-way
Cheapest flights from Knoxville to HeathrowExplore 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 October 30, 2026.
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 October 30, 2026.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:45 pm -
2 stops16h 20m
Tue 12/88:30 am -
2 stops17h 07m
Deal found 10/26![Lufthansa logo]()
$910
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:22 am -
1 stop16h 13m
Thu 12/107:30 am -
2 stops20h 56m
Deal found 10/28![Iberia logo]()
$920
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.
Tue 12/15:35 pm -
1 stop13h 25m
Tue 12/89:00 am -
2 stops19h 59m
Deal found 10/26![United Airlines logo]()
$922
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.
Wed 12/210:57 am -
2 stops14h 43m
Thu 12/106:35 am -
2 stops18h 12m
Deal found 10/28![United Airlines logo]()
$928
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:45 pm -
1 stop13h 30m
Wed 12/168:30 am -
2 stops20h 29m
Deal found 10/26![Multiple Airlines logo]()
$934
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.
Wed 12/92:07 pm -
1 stop15h 43m
Wed 12/167:30 am -
2 stops32h 34m
Deal found 10/26![United Airlines logo]()
$939
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:42 pm -
1 stop12h 53m
Thu 12/101:10 pm -
1 stop12h 48m
Deal found 10/28![British Airways logo]()
$950
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.
Wed 11/2510:33 am -
1 stop14h 22m
Wed 12/164:20 pm -
1 stop12h 39m
Deal found 10/26![United Airlines logo]()
$953
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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.
Fri 12/45:35 pm -
2 stops22h 25m
Tue 12/89:30 am -
2 stops15h 17m
Deal found 10/29![Lufthansa logo]()
$956
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/210:33 am -
1 stop14h 22m
Wed 11/116:50 am -
2 stops15h 09m
Deal found 10/25![United Airlines logo]()
$968
Best flights from Knoxville to HeathrowDiscover carefully curated flight deals from Knoxville to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Knoxville to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
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.
Sun 2/216:25 am -
1 stop18h 30m
Fri 2/269:00 am -
2 stops19h 59m
Deal found 10/26![United Airlines logo]()
$886
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/111:49 am -
1 stop14h 06m
Sun 3/711:00 am -
1 stop13h 00m
Deal found 10/28![British Airways logo]()
$945
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Tue 1/2612:20 pm -
1 stop13h 00m
Wed 2/106:50 am -
2 stops17h 54m
Deal found 10/25![United Airlines logo]()
$888
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/91:55 pm -
1 stop13h 00m
Wed 12/169:00 am -
2 stops19h 59m
Deal found 10/25![United Airlines logo]()
$939
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 12/412:46 pm -
1 stop12h 34m
Tue 12/89:00 am -
2 stops16h 47m
Deal found 10/29![United Airlines logo]()
$971
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/255:45 am -
2 stops20h 25m
Wed 12/24:40 pm -
2 stops32h 07m
Deal found 10/30![United Airlines logo]()
$986
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 12/152:07 pm -
1 stop15h 43m
Tue 12/224:20 pm -
1 stop12h 55m
Deal found 10/29![United Airlines logo]()
$1,057
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.
Thu 12/102:07 pm -
1 stop11h 33m
Thu 12/1712:05 pm -
2 stops41h 10m
Deal found 10/26![United Airlines logo]()
$1,109
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.
Tue 12/11:55 pm -
1 stop11h 00m
Wed 12/211:05 am -
2 stops55h 15m
Deal found 10/28![United Airlines logo]()
$1,113
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 12/146:20 am -
1 stop10h 00m
Mon 12/217:50 am -
1 stop18h 01m
Deal found 10/30![United Airlines logo]()
$1,210
Last-minute flights from Knoxville to HeathrowDiscover last-minute flight deals from Knoxville to Heathrow. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Heathrow. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/210:33 am -
1 stop14h 22m
Wed 11/116:50 am -
2 stops15h 09m
Deal found 10/25![United Airlines logo]()
$968
This Justfly.com deal was found by Cheapflights users on 10/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:35 pm -
2 stops31h 55m
Wed 11/118:45 am -
2 stops20h 14m
Deal found 10/25![Multiple Airlines logo]()
$987
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/211:50 am -
2 stops15h 05m
Wed 11/1110:00 am -
2 stops15h 09m
Deal found 10/29![Delta logo]()
$996
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:45 pm -
1 stop13h 30m
Wed 12/168:30 am -
2 stops20h 29m
Deal found 10/26![Multiple Airlines logo]()
$934
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.
Wed 11/2510:33 am -
1 stop14h 22m
Wed 12/164:20 pm -
1 stop12h 39m
Deal found 10/26![United Airlines logo]()
$953
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/259:45 am -
1 stop20h 05m
Wed 12/24:40 pm -
2 stops32h 07m
Deal found 10/30![United Airlines logo]()
$983
One-way flights from Knoxville to HeathrowSearch for one-way flight options from Knoxville to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Knoxville to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/153:16 pm -
1 stop12h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$337
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.
Mon 3/152:20 pm -
2 stops15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$340
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1511:51 am -
2 stops15h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$341
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1510:16 am -
3 stops16h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Air Canada logo]()
$405
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:30 am -
1 stop21h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$443
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/319:30 am -
3 stops18h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Air Canada logo]()
$625
This Thrive Travel 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2111:49 am -
1 stop18h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Iberia logo]()
$2,926
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/217:40 am -
2 stops24h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![British Airways logo]()
$3,458
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2110:16 am -
3 stops16h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Air Canada logo]()
$3,833
Find 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 October 30, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $880 (Expedia) |
One-way from | $443 (WAYA) |
Popular in | June |
Cheapest in | April |
Average price | $1,005 |
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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 3/15
3:16 pm-7:20 am
1 stop12h 04m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$337
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 3/15
2:20 pm-10:05 am
2 stops15h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$340
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 3/15
11:51 am-7:10 am
2 stops15h 19m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$341
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 3/15
10:16 am-7:10 am
3 stops16h 54m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$405
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 12/31
6:30 am-9:10 am
1 stop21h 40m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$443
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 12/31
9:30 am-8:30 am
3 stops18h 00m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$625
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Sun 2/21
6:25 am-5:55 am
1 stop18h 30m
London Heathrow
Fri 2/26
9:00 am-11:59 pm
2 stops19h 59m
$886
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Tue 1/26
12:20 pm-6:20 am
1 stop13h 00m
London Heathrow
Wed 2/10
6:50 am-7:44 pm
2 stops17h 54m
$888
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 12/9
1:55 pm-7:55 am
1 stop13h 00m
London Heathrow
Wed 12/16
9:00 am-11:59 pm
2 stops19h 59m
$939
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 3/1
11:49 am-6:55 am
1 stop14h 06m
London Heathrow
Sun 3/7
11:00 am-7:00 pm
1 stop13h 00m
$945
Showing 1-10 of 17 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Knoxville-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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.
TYS-LHR
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
What is the cheapest month to book a flight from Knoxville to London Heathrow Airport?
Currently, April is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of $841). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of $1,662). 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.
How much does it cost to fly round-trip from Knoxville to London Heathrow Airport?
Airfare is below average for this route at the moment.
Knoxville to London Heathrow Airport flights typically cost between $940 and $1,152 in January.The cheapest round-trip price found within the last 5 days was $880 on Multiple Airlines (Jan 26-Feb 9).
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 October 30, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Knoxville to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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Wembley
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Basingstoke
Watford
Northampton
Dartford
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Croydon
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Chipping Norton
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Find flights from Knoxville to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Knoxville and Heathrow flights
Browse other Knoxville and Heathrow flight options. Last updated on October 30, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Popular flight searches
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Top 4 airlines flying from Knoxville to Heathrow
Discover the top 4 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$646 | Average$1,193 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$674 | Average$1,183 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$719 | Average$986 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$795 | Average$940 | FlexibilityNo cancel fee | On-time69% |