Cheap flights from London to Knoxville from £491

from as little as £491

20 nights in Knoxville, departing London Heathrow on 09 / Sep / 2025 with British Airways (price found 6 hours ago)

Subject to availability, prices correct of the last 24 hours
Knoxville

The London / Knoxville route

All 6599 km of it

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Knoxville flight facts

What you need to know

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Knoxville

Today alone, Netflights has searched over 302 flights. 09 / Sep / 2025 is currently the lowest priced day of the year to fly the London/Knoxville route. There are around 293 flights on any given week from the UK to Knoxville and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

-1 °C

AVG

15 °C

HIGHEST

31 °C

Rainfall (mm)
LOWEST

70 mm

AVG

100.2 mm

HIGHEST

127 mm

Key facts about Knoxville

How to get cheap flights from London to Knoxville

Tips and advice from our flight experts

Find a good deal on your flight from London to Knoxville with Netflights. 293 flights go via this route every week, and we've collected them all to help you find the best flight deal. If you want to keep your options open, take a look at flights from another airport in London.

The most popular airlines for this route are British Airways, Lufthansa & Virgin Atlantic, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.

Last-minute deals can be cheaper, but it's risky. It's best to book flights to Knoxville in advance to avoid disappointment. Finnair usually have the lowest prices, so keep an eye out for their flights. Flights from London to Knoxville generally take about 14 hrs 30 mins.

Today alone, we’ve scanned 302 flights worldwide to bring you the best flight deals in one place. Did you know you can also compare car hire and hotel prices in the USA with Netflights? Take a look to get an idea of prices in Knoxville.

Other popular destinations near Knoxville

Where other people are flying to

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