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Cheap Flights from Harrisburg International (MDT) to London Heathrow (LHR)

Compare Harrisburg International to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Harrisburg International to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Harrisburg International Airport to London Heathrow Airport? If you want to travel next month, return fares start from £589. Find the lowest prices on one-way and return tickets right here.
London.£199 per passenger.Departing Wed, 13 May.One-way flight with Air France.Outbound indirect flight with Air France, departs from Harrisburg International on Wed, 13 May, arriving in London Heathrow.Price includes taxes and charges.From £199, select.
London.£243 per passenger.Departing Tue, 16 Feb.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Harrisburg International on Tue, 16 Feb, arriving in London Heathrow.Price includes taxes and charges.From £243, select.
London.£244 per passenger.Departing Sun, 19 Jul.One-way flight with Air France.Outbound indirect flight with Air France, departs from Harrisburg International on Sun, 19 Jul, arriving in London Heathrow.Price includes taxes and charges.From £244, select.
London.£248 per passenger.Departing Fri, 18 Sep.One-way flight with Air France.Outbound indirect flight with Air France, departs from Harrisburg International on Fri, 18 Sep, arriving in London Heathrow.Price includes taxes and charges.From £248, select.
London.£276 per passenger.Departing Thu, 20 Aug.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from Harrisburg International on Thu, 20 Aug, arriving in London Heathrow.Price includes taxes and charges.From £276, select.

Find the cheapest month to fly from Harrisburg International to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Harrisburg International to London Heathrow flights are currently cheapest in May.
Apr
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May
from £199
Jun
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Jul
from £244
Aug
from £276
Sep
from £248
Oct
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Nov
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Dec
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Jan
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Feb
from £243
Mar
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Harrisburg International to London Heathrow: Alternative routes

Compare routes from Harrisburg International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

London City

8 miles from central London
Closest
from £250
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London Heathrow

14 miles from central London
Cheapest
from £199
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London Gatwick

25 miles from central London
from £262
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London Luton

28 miles from central London
from £351
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London Stansted

30 miles from central London
from £401
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London Southend

36 miles from central London
from £524
Search flights

Harrisburg to London: Flight information

The things to know before you go.
Cheapest flight found£199
Cheapest month to flyMay

Finding cheap flights from Harrisburg International to London Heathrow: Frequently asked questions

The best price we found for a return flight from Harrisburg International to London Heathrow is £535. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Harrisburg International to London Heathrow. But we found flights with one or more stops from £535.
As of April 2026, there are no flights flying from Harrisburg International to London Heathrow.
The cheapest month to fly from Harrisburg International to London Heathrow is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Harrisburg International Airport to London Heathrow Airport on Friday, 9 October 2026.
No airlines currently offer direct flights between Harrisburg International Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air France offers the cheapest flight tickets to London Heathrow.

Travelling from Harrisburg International Airport (MDT) to London Heathrow Airport (LHR): what you need to know

  • London's timezone is UTC+0, making London four hours ahead of Harrisburg.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Show up at the airport on time to board your MDT to LHR flight.

  • You'll likely experience bigger queues during popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Harrisburg International Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to tour the city of your choice. Top stopovers between MDT and LHR include:

    • Newark Liberty International Airport

    • Philadelphia International Airport

    • Washington Dulles International Airport

How to find the cheapest flights from Harrisburg International Airport (MDT) to London Heathrow Airport (LHR)

  • Currently, £199 is the cheapest price we've found for a one-way Harrisburg International Airport to London Heathrow Airport flight. The best price for a return ticket is £535. Remember that fares can change due to availability when booking.

  • To get your hands on cheap tickets from MDT to LHR, book early. Airlines usually offer lower prices when flights are first released.

  • If you can be flexible with your trip dates, use the 'Whole month' tool. It'll show you the cheapest price across each month when searching for a flight from Harrisburg International Airport to London Heathrow Airport.

  • You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's a better deal on cheap flights from MDT to LHR.

  • Tailor your flights with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Harrisburg International Airport to London Heathrow Airport.

Handy information about Harrisburg International Airport (MDT)

  • MDT is located at One Terminal Drive.

  • When it comes to the on-time performance of Harrisburg International Airport, 77.41% of flights stick to their scheduled arrival time.

  • Harrisburg International Airport is around 12 miles from central Harrisburg. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • Expect a trip time of around 40 minutes when using public transport.

  • Booked an early flight from Harrisburg International Airport to London Heathrow Airport? Avoid the last-minute rush to the airport (and get some extra shut-eye) by picking one of these stays near MDT:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 19 miles from the centre of London. Driving there takes about 55 minutes.

  • When travelling on public transport, expect a journey of around 1 hour.

When to fly to London Heathrow Airport (LHR)

  • It's time to work out your travel dates for your flight from Harrisburg International Airport to London Heathrow Airport. July is the busiest month to head to London. If you'd like a more low-key vibe, go in February.

  • When booking your flight from Harrisburg International Airport to London Heathrow Airport, consider the type of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • Look for cheap tickets from MDT to LHR in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of United Kingdom

  • Birmingham is just one of the many places in United Kingdom waiting to be discovered after you've experienced London. Around 100 miles away to the north-west, top sights here include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If you want to check out another well-known destination in United Kingdom, head for Bristol, about 110 miles west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are key reasons to visit.

Plan the rest of your trip from Harrisburg to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.