$218 Find Cheap Flights from Knoxville to the United Kingdom

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 the United Kingdom departing on 3/20. 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

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Cheap Flights from Knoxville to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$646
Edinburgh
Edinburgh2 stops$629
Manchester
Manchester1 stop$692
Birmingham
Birmingham2 stops$703
London
London1 stop$646
Edinburgh
Edinburgh2 stops$629
Manchester
Manchester1 stop$692
Birmingham
Birmingham2 stops$703

Book Cheap Knoxville to the United Kingdom Plane Tickets

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

Tue, Mar 31 - Tue, Apr 14
American Airlines Logo
6:38 pm - 2:35 pm
TYS
-
EDI
14h 57m
2 stops
American Airlines Logo
11:25 am - 9:57 pm
EDI
-
TYS
15h 32m
1 stop
$629American Airlines
Tue, Mar 31 - Tue, Apr 14
American Airlines Logo
6:38 pm - 3:40 pm
TYS
-
EDI
16h 02m
2 stops
American Airlines Logo
10:30 am - 10:56 pm
EDI
-
TYS
17h 26m
2 stops
$633American Airlines
Wed, Apr 15 - Mon, Apr 20
British Airways Logo
5:06 pm - 10:30 am
TYS
-
LHR
12h 24m
1 stop
British Airways Logo
7:25 pm - 8:18 pm
LHR
-
TYS
29h 53m
2 stops
$646British Airways
Sun, Apr 5 - Mon, Apr 13
British Airways Logo
5:47 pm - 9:05 am
TYS
-
LHR
10h 18m
1 stop
British Airways Logo
7:25 pm - 8:18 pm
LHR
-
TYS
29h 53m
2 stops
$647British Airways
Wed, May 6 - Wed, May 20
United Airlines Logo
2:25 pm - 10:40 am
TYS
-
LHR
15h 15m
1 stop
United Airlines Logo
6:55 am - 8:12 pm
LHR
-
TYS
18h 17m
2 stops
$648United Airlines
Wed, Apr 22 - Wed, May 6
United Airlines Logo
9:00 am - 11:35 am
TYS
-
LHR
21h 35m
1 stop
United Airlines Logo
7:25 am - 8:12 pm
LHR
-
TYS
17h 47m
2 stops
$649United Airlines
Wed, Apr 15 - Mon, Apr 20
Lufthansa Logo
7:20 pm - 6:25 pm
TYS
-
LHR
18h 05m
2 stops
Lufthansa Logo
7:30 pm - 10:29 pm
LHR
-
TYS
31h 59m
2 stops
$654Lufthansa
Wed, Apr 15 - Mon, Apr 20
Lufthansa Logo
7:20 pm - 5:05 pm
TYS
-
LHR
16h 45m
2 stops
Lufthansa Logo
7:30 pm - 10:29 pm
LHR
-
TYS
31h 59m
2 stops
$655Lufthansa
Thu, Apr 2 - Tue, Apr 14
Delta Logo
5:10 pm - 8:50 am
TYS
-
MAN
10h 40m
1 stop
Delta Logo
1:00 pm - 3:52 pm
MAN
-
TYS
31h 52m
1 stop
$692Delta
Thu, Apr 2 - Tue, Apr 14
Delta Logo
8:33 am - 8:50 am
TYS
-
MAN
19h 17m
1 stop
Delta Logo
2:00 pm - 11:54 pm
MAN
-
TYS
14h 54m
2 stops
$696Delta
Booking Insights

KAYAK's insights & trends for Knoxville to the United Kingdom flights

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

What is the cheapest month to fly from Knoxville to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to the United Kingdom, 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 the United Kingdom is January, when tickets cost $604 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,284 and $1,085 respectively.

How far in advance should I book a flight from Knoxville to the United Kingdom?

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 the United Kingdom, 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 the United Kingdom, 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$218
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Knoxville to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Knoxville to the United Kingdom?

    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 the United Kingdom.

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

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

    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 from Knoxville to the United Kingdom with an airline and back with another airline.

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

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

Reviews of the top 5 airlines serving from Knoxville to the United Kingdom

 
Need help choosing which airline to fly with from Knoxville to the United Kingdom? 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 8181 reviews
8.5Crew
7.2Food
7.9Comfort
7.8Entertainment
8.1Boarding
Airline reviews

Awesome! On time flight, early arrival, and a complimentary upgrade!

10.0 ExcellentSarah, Feb 2026
SFO - LAX
Read more Delta reviews

Awesome! On time flight, early arrival, and a complimentary upgrade!

Paid for wifi that didn't work. No plug in seat to work. No entertainment.

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

This was a horrible experience. I’ve experienced several delays at this point and still not home. I was supposed to be home by 8:30 last night and here I sit at 7 am on a plane STILL unable to go home because of American Airlines.

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

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

My flight was delayed about three hours. I got home at 3:30 in the morning very bad experience.

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.

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.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Everything you need to know for your flight from Knoxville to the United Kingdom

Information on your arrival and departure airports