LON - TYS

$409 Find Cheap Flights from London to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Knoxville departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Knoxville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$532
Typical prices: $774-$954
United Airlines
Tue 2/24Tue 4/21
LHR - TYS • 1 stop
Cheapest one-way
$409
Multiple Airlines
Mon 2/9
LGW - TYS • 2 stops
Top airlines
United Airlines
Cheapest • from $532 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 18% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Knoxville (LON-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Knoxville

Tue, Feb 24 - Tue, Apr 21
United Airlines Logo
12:05 pm - 7:29 pm
LHR
-
TYS
12h 24m1 stop
United Airlines Logo
1:53 pm - 9:00 am
TYS
-
LHR
14h 07m1 stop
$532United Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
2:00 pm - 10:08 am
LGW
-
TYS
49h 08m2 stops
Multiple Airlines Logo
2:06 pm - 10:00 am
TYS
-
LGW
14h 54m1 stop
$667Multiple Airlines
Tue, Feb 10 - Tue, Feb 17
United Airlines Logo
9:00 am - 8:52 pm
LHR
-
TYS
16h 52m2 stops
United Airlines Logo
7:25 pm - 10:50 am
TYS
-
LHR
10h 25m1 stop
$681United Airlines
Mon, Feb 9 - Mon, Feb 16
United Airlines Logo
9:00 am - 8:52 pm
LHR
-
TYS
16h 52m2 stops
United Airlines Logo
7:25 pm - 6:40 am
TYS
-
LHR
30h 15m1 stop
$682United Airlines
Fri, Feb 6 - Mon, Feb 9
United Airlines Logo
6:35 am - 7:27 pm
LHR
-
TYS
17h 52m2 stops
United Airlines Logo
9:30 am - 10:50 am
TYS
-
LHR
20h 20m1 stop
$686United Airlines
Mon, Jan 12 - Wed, Mar 18
British Airways Logo
10:15 am - 8:56 pm
LHR
-
TYS
15h 41m1 stop
British Airways Logo
4:15 pm - 12:00 pm
TYS
-
LHR
15h 45m1 stop
$694British Airways
Mon, Apr 13 - Tue, May 12
British Airways Logo
6:35 am - 10:32 am
LHR
-
TYS
32h 57m2 stops
British Airways Logo
8:23 pm - 12:15 pm
TYS
-
LHR
10h 52m1 stop
$707British Airways
Sun, Jun 7 - Sun, Jun 14
American Airlines Logo
10:45 am - 12:43 am
LGW
-
TYS
18h 58m2 stops
American Airlines Logo
11:08 am - 10:40 am
TYS
-
LGW
18h 32m2 stops
$949American Airlines
Sat, May 9 - Mon, May 18
Iberia Logo
8:40 pm - 7:26 pm
LGW
-
TYS
27h 46m2 stops
Iberia Logo
11:34 am - 10:50 am
TYS
-
LGW
18h 16m2 stops
$1,047Iberia
Tue, Feb 10 - Tue, Feb 17
Lufthansa Logo
6:15 pm - 7:27 pm
LCY
-
TYS
30h 12m2 stops
Lufthansa Logo
1:50 pm - 9:15 am
TYS
-
LCY
14h 25m2 stops
$1,214Lufthansa
Booking Insights

KAYAK's insights & trends for London to Knoxville flights

Get data-powered insights and trends into flights from London to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from London to Knoxville?

The average price of all round-trip flights from London to Knoxville clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London to Knoxville, look for departures on Fridays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Knoxville, Wednesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from London to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Knoxville is February, where tickets cost $717 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,103 and $1,068 respectively.

How far in advance should I book a flight from London to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Knoxville, you should book around 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$409
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from London Gatwick Airport to Knoxville

When to book flights from London to Knoxville

Are your dates flexible? Find out the best times to travel from London to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Knoxville

  • What is the cheapest flight from London to Knoxville?

    In the last 3 days, the lowest price for a flight from London to Knoxville was $485 for a one-way ticket and $681 for a round-trip.

  • Do I need a passport to fly between London and Knoxville?

    Yes

  • Which airports will I be using when flying from London to Knoxville?

    There are 2 airports in London (London Gatwick and London Heathrow.) and only 1 airport in Knoxville (Knoxville McGhee Tyson). The cheapest flights are generally found on the London Heathrow Airport to Knoxville McGhee Tyson flight route.

  • Which aircraft models fly most regularly from London to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Knoxville?

    oneworld is the only airline alliance operating flights between London and Knoxville.

  • How does KAYAK find such low prices on flights from London to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from London to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7618 reviews
6.9Boarding
7.6Crew
6.7Comfort
6.4Food
6.4Entertainment
Airline reviews

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

4.0 OkayAnonymous, Dec 2025
LHR - LAX
Read more British Airways reviews

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

I was in a bulkhead seat and my tray table wasn't level. Eating was difficult.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Everything you need to know for your flight from London to Knoxville

Information on your arrival and departure airports