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$593+ Cheap flights from Kingsport, TN 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Find flight deals from Kingsport to Heathrow

Cheapest flights from Kingsport to Heathrow
Explore the most affordable flight options available from Kingsport to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Delta deal was found by Cheapflights users on 10/21. 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 11/183:36 pmTRI - LHR
1 stop12h 24mDelta
Tue 11/258:55 amLHR - TRI
2 stops18h 36mDelta
Deal found 10/21$593
This KLM deal was found by Cheapflights users on 10/21. 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.
Tue 11/183:36 pmTRI - LHR
1 stop12h 24mKLM
Tue 11/2512:30 pmLHR - TRI
1 stop15h 01mKLM
Deal found 10/21$601
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 12/53:36 pmTRI - LHR
2 stops19h 24mScandinavian Airlines
Fri 12/126:40 amLHR - TRI
2 stops20h 54mScandinavian Airlines
Deal found 10/21$603
This Delta deal was found by Cheapflights users on 10/22. 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 12/810:12 amTRI - LHR
1 stop15h 13mDelta
Mon 1/198:40 amLHR - TRI
2 stops18h 46mDelta
Deal found 10/22$622
This KLM deal was found by Cheapflights users on 10/21. 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.
Sun 12/73:36 pmTRI - LHR
1 stop12h 24mKLM
Sun 12/148:55 amLHR - TRI
1 stop14h 49mKLM
Deal found 10/21$641
This Delta deal was found by Cheapflights users on 10/21. 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.
Fri 12/510:12 amTRI - LHR
1 stop15h 13mDelta
Thu 1/226:20 amLHR - TRI
2 stops16h 52mDelta
Deal found 10/21$643
This Delta deal was found by Cheapflights users on 10/23. 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.
Wed 11/1910:02 amTRI - LHR
2 stops15h 18mDelta
Sun 11/2311:30 amLHR - TRI
2 stops16h 01mDelta
Deal found 10/23$647

Cheap flight deals from Kingsport to Heathrow

Keep the following information in mind while searching for Kingsport to Heathrow flight deals. Data was last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$593
(Delta)

Popular in

June

Cheapest in

November

Average price

$728
Provider with most accurate pricing for Blountville Tri Cities TN/VA-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Blountville Tri Cities TN/VA-London (LON) flights.
Search Deals
From Kingsport to London Heathrow
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingsport 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 October 23, 2025.
Use the filters below to find and compare flights from Kingsport to London Heathrow Airport that are best for you.

Fly from

Kingsport

Fly to

Heathrow

Route

Depart

Return

Price

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Tue 11/18

3:36 pm-9:00 am

1 stop12h 24m

London Heathrow

Tue 11/25

8:55 am-10:31 pm

2 stops18h 36m

$593

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Tue 11/18

3:36 pm-9:00 am

1 stop12h 24m

London Heathrow

Tue 11/25

12:30 pm-10:31 pm

1 stop15h 01m

$601

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Mon 12/8

12:52 pm-6:25 am

1 stop12h 33m

London Heathrow

Mon 1/19

8:40 am-10:26 pm

2 stops18h 46m

$622

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Wed 11/19

10:02 am-6:20 am

2 stops15h 18m

London Heathrow

Sun 11/23

6:30 am-10:31 pm

2 stops21h 01m

$627

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Sun 12/7

3:36 pm-9:00 am

1 stop12h 24m

London Heathrow

Sun 12/14

8:55 am-6:44 pm

1 stop14h 49m

$641

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Fri 12/5

10:12 am-6:25 am

1 stop15h 13m

London Heathrow

Thu 1/22

6:20 am-6:12 pm

2 stops16h 52m

$643

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Fri 3/6

3:50 pm-9:00 am

1 stop12h 10m

$3,171

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Fri 3/6

10:15 am-9:20 am

2 stops18h 05m

$3,171

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Best time to book a flight from Kingsport to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kingsport 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 Kingsport to London Heathrow Airport

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

Currently, July is the cheapest month in which you can book a flight from Kingsport to London Heathrow Airport (average of $505). Flying from Kingsport to London Heathrow Airport in June is currently the most expensive (average of $908). 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 K1N to LHR?

Find hourly flight availability from Kingsport 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 October 23, 2025.

A simple way to save on the total cost of your ticket is to fly from Kingsport to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Kingsport to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Kingsport to London Heathrow Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 23, 2025.
See what other customers who have flown with Delta, Virgin Atlantic, and American Airlines from Kingsport 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.
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,981 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Virgin Atlantic
7.5
Good
670 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,031 reviews
Delta
7.9
Good
7,981 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Kingsport to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Kingsport to London Heathrow Airport?

    Delta and KLM can get you from Kingsport to London Heathrow Airport in just under 12h 24m. Your travel time can differ by up to . The distance between Kingsport and London Heathrow Airport is about 3980 mi.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Kingsport to London Heathrow Airport (average of $505). Flying from Kingsport to London Heathrow Airport in June is currently the most expensive (average of $908). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Kingsport to Heathrow

Discover the top 5 airlines that operate flights from Kingsport 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$541Average$821FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$572Average$938FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$654Average$973FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$654Average$1,031FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$693Average$851FlexibilityNo cancel feeOn-time70%

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