Cheap flights from Knoxville to London from $332
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to London departing on 3/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Not ready to book? to track prices.Lufthansa flights from Knoxville to London Heathrow Airport
Our best Lufthansa deals on Knoxville to London Heathrow Airport flight tickets
Iberia flights from Knoxville to London Heathrow Airport
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Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.
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Route
Depart
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KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 2/11
5:57 pm-9:00 am
1 stop10h 03m
London Heathrow
Tue 2/16
12:40 pm-11:46 pm
1 stop16h 06m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 11/11
4:00 pm-11:40 am
1 stop14h 40m
London Heathrow
Tue 11/24
8:55 am-8:09 pm
1 stop16h 14m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 1/6
11:53 am-10:15 am
1 stop17h 22m
London Heathrow
Wed 1/13
9:00 am-11:59 pm
2 stops19h 59m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 1/6
5:15 pm-9:15 am
1 stop11h 00m
London Heathrow
Wed 1/13
2:10 pm-10:51 pm
1 stop13h 41m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 1/20
7:50 am-6:55 am
1 stop18h 05m
London Heathrow
Wed 1/27
4:30 pm-12:28 am
1 stop12h 58m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Tue 11/24
6:45 am-7:55 am
1 stop20h 10m
London Heathrow
Tue 12/8
9:00 am-11:59 pm
2 stops19h 59m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Tue 11/17
2:40 pm-10:30 am
2 stops14h 50m
London Heathrow
Tue 11/24
10:00 am-10:12 pm
2 stops17h 12m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 11/11
5:19 pm-9:40 am
1 stop11h 21m
London Heathrow
Tue 11/24
3:40 pm-11:47 pm
1 stop13h 07m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 11/11
3:55 pm-7:50 am
1 stop10h 55m
London Heathrow
Tue 11/24
10:35 am-8:50 pm
1 stop15h 15m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 11/19
2:40 pm-6:25 am
1 stop10h 45m
London Heathrow
Thu 11/26
10:00 am-10:12 pm
2 stops17h 12m
See travel insights to London from
How to get the cheapest flight ticket from Knoxville to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Knoxville and London Heathrow Airport?
Prices are currently low for flights on this route.
Typical prices usually range from $830 to $1,184.The lowest price recently found on this route was $824.
What is the cheapest month to fly to London Heathrow Airport?
The month of April is, on average, the cheapest month to fly to London Heathrow Airport from Knoxville, with most prices found around $841. If you’re not able to fly to London Heathrow Airport in April, then January is your next best option. Flight prices from Knoxville to London Heathrow Airport during January average around $855.
Can stopping save me money on Knoxville to London Heathrow Airport flights?
You could potentially save up to 12% on your flight if you consider stops on a Knoxville to London Heathrow Airport flight.
What is the cheapest airline that flies from Knoxville McGhee Tyson to London Heathrow?
Aer Lingus, United Airlines, and British Airways are the most popular carriers operating from Knoxville McGhee Tyson to London Heathrow
What airlines fly to London Heathrow Airport?
American Airlines, Delta and British Airways are the top three most popular airlines that fly to London Heathrow Airport from Knoxville according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 5 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Knoxville and London Heathrow Airport?
Atlanta (ATL) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Knoxville to London Heathrow Airport?
Flights via Atlanta (ATL) offer the lowest average round-trip price of $1,228.
Which layover airport has the shortest travel time from Knoxville to London Heathrow Airport?
Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 9h 58m.
Which layover airport has the shortest connection time from Knoxville to London Heathrow Airport?
Charlotte (CLT) has the shortest average layover time for this route: 1h 02m.
When to book flights from Knoxville to London Heathrow Airport
Cheap Knoxville to London Heathrow Airport (TYS to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to London Heathrow Airport
Frequently asked questions about flying from Knoxville to London Heathrow Airport
How far is Knoxville McGhee Tyson to London Heathrow by plane?
London Heathrow is 4065.6 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 10h 19m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport?
Prices for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport?
As of October 2026, there are 4 operators available to choose from for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to London Heathrow Airport is American Airlines (37% of total bookings). The next most popular airlines are British Airways (28%), Delta (21%), and United Airlines (13%).
Best airlines flying from Knoxville to London Heathrow Airport
Compare and see reviews for airlines that fly from Knoxville to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $646 | Free Cancellation | Rating 7.8 8,635 reviews | |||
| PriceFrom $674 | Free Cancellation | Rating 7.0 12,136 reviews | |||
| PriceFrom $677 | Free Cancellation | Rating 7.4 10,315 reviews | |||
| PriceFrom $719 | Free Cancellation | Rating 6.7 8,256 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Knoxville to London?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to London for you.
Can I find flights from Knoxville to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Knoxville to London flights to just show those with flexible booking policies.
How can momondo help me find flights from Knoxville to London?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Knoxville.
I’m not ready to book a flight from Knoxville to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.