TYS - LON

$445 Find Cheap Flights from Knoxville to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to London departing on 4/15. 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 London

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

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Everything you should know

Cheapest round-trip
$897
Typical prices: $1,250-$736
Iberia
Mon 9/14Wed 9/23
TYS - LHR • 1 stop
Cheapest one-way
$445
Aer Lingus
Wed 4/15
TYS - LHR • 2 stops
Top airlines
Cheapest • from $897 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $969 (round-trip)
Shortest trip • 10h 20m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
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 London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to London (TYS-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to London 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 Knoxville to London

Mon, Sep 14 - Wed, Sep 23
Iberia Logo
3:05 pm - 7:40 am
TYS
-
LHR
11h 35m
1 stop
Iberia Logo
6:15 am - 9:15 pm
LHR
-
TYS
20h 00m
2 stops
$897Iberia
Mon, Sep 14 - Wed, Sep 23
Iberia Logo
5:04 pm - 12:15 pm
TYS
-
LHR
14h 11m
1 stop
Iberia Logo
6:15 am - 9:15 pm
LHR
-
TYS
20h 00m
2 stops
$898Iberia
Mon, Sep 14 - Wed, Sep 23
Iberia Logo
5:04 pm - 12:15 pm
TYS
-
LHR
14h 11m
1 stop
Iberia Logo
6:15 am - 9:15 pm
LHR
-
TYS
20h 00m
2 stops
$899Iberia
Mon, Aug 24 - Wed, Sep 2
Multiple Airlines Logo
7:10 am - 8:25 am
TYS
-
LGW
20h 15m
2 stops
Multiple Airlines Logo
2:00 pm - 12:02 pm
LGW
-
TYS
27h 02m
1 stop
$900Multiple Airlines
Mon, Aug 24 - Tue, Sep 1
Multiple Airlines Logo
7:10 am - 6:20 am
TYS
-
LGW
18h 10m
1 stop
Multiple Airlines Logo
2:00 pm - 2:56 pm
LGW
-
TYS
29h 56m
1 stop
$906Multiple Airlines
Mon, Aug 3 - Fri, Aug 21
Lufthansa Logo
7:19 pm - 5:05 pm
TYS
-
LHR
16h 46m
2 stops
Lufthansa Logo
10:50 am - 11:57 pm
LHR
-
TYS
18h 07m
2 stops
$914Lufthansa
Wed, Aug 19 - Wed, Sep 2
British Airways Logo
5:37 pm - 11:15 am
TYS
-
LHR
12h 38m
1 stop
British Airways Logo
9:15 am - 9:44 pm
LHR
-
TYS
17h 29m
2 stops
$920British Airways
Wed, Aug 19 - Wed, Sep 2
Lufthansa Logo
7:19 pm - 3:40 pm
TYS
-
LHR
15h 21m
2 stops
Lufthansa Logo
9:30 am - 11:57 pm
LHR
-
TYS
19h 27m
2 stops
$921Lufthansa
Wed, Sep 2 - Wed, Sep 9
British Airways Logo
6:07 pm - 12:50 pm
TYS
-
LHR
13h 43m
1 stop
British Airways Logo
7:30 pm - 9:15 pm
LHR
-
TYS
30h 45m
2 stops
$925British Airways
Sun, May 10 - Fri, May 29
Delta Logo
3:05 pm - 9:30 am
TYS
-
LCY
13h 25m
2 stops
Delta Logo
10:00 am - 9:25 pm
LCY
-
TYS
16h 25m
2 stops
$1,113Delta
Booking Insights

KAYAK's insights & trends for Knoxville to London flights

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

How much is a round-trip flight from Knoxville to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to London departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to London, 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 Knoxville to London is January, where tickets cost $604 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,346 and $1,063 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to London, 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 Knoxville to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$445
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Knoxville to London Heathrow Airport

When to book flights from Knoxville to London

Are your dates flexible? Find out the best times to travel from Knoxville to London 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 Knoxville to London

  • What is the cheapest flight from Knoxville to London?

    In the last 3 days, the lowest price for a flight from Knoxville to London was $445 for a one-way ticket and $897 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Knoxville and on arrival in London.

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

    On your way to London, you’ll fly out from Knoxville McGhee Tyson. You’ll be landing in one of London’s 3 airports: London City, London Gatwick, or London Heathrow.

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

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

  • Which airline alliances offer flights from Knoxville to London?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Knoxville and London, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to London, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to London are Delta and United Airlines. With an average price for the route of $940 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $803 and an overall rating of 7.4.

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

    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 Knoxville to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Knoxville 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 Knoxville to London?

    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 London with an airline and back to Knoxville with another airline.

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

    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 London from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Knoxville to London

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to London. 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 Knoxville to London? 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.
7.9
DeltaOverall score based on 8367 reviews
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
Airline reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

10.0 ExcellentLorna, Mar 2026
LAX - PDX
Read more Delta reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

Excellent service, I love the soft blush pink mood lighting on the 767-400ER during meal service. The overhead gasper vents on the 767-400ER were also very strong with a lot of airflow to keep me comfortable on my flight.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Overall, the flight was good. Lounge access should be with all business class tickets.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

My flight to London from Philadelphia was cancelled due to weather.

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

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

Information on your arrival and departure airports