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Cheap flights from Harrisburg to London Heathrow Airport from £244

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LHR
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Harrisburg to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Harrisburg to Heathrow
Explore the most affordable flight options available from Harrisburg to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.

Mon 7/1217:31 -
1 stop13h 29m
Wed 9/1211:05 -
2 stops34h 45m
Deal found 8/8£547
Wed 9/1208:15 -
2 stops20h 50m
Fri 11/1207:40 -
1 stop16h 00m
Deal found 10/8£564
Mon 2/1120:13 -
2 stops14h 37m
Tue 10/1111:10 -
2 stops36h 26m
Deal found 8/8£628
Mon 2/1120:13 -
2 stops14h 37m
Mon 9/1120:15 -
2 stops51h 21m
Deal found 8/8£635
Wed 30/906:30 -
2 stops21h 05m
Thu 8/1006:50 -
2 stops21h 39m
Deal found 8/8£641
Tue 20/1012:18 -
1 stop14h 32m
Wed 28/1013:10 -
1 stop12h 05m
Deal found 8/8£643
Wed 11/1114:40 -
1 stop11h 00m
Tue 17/1106:50 -
2 stops21h 54m
Deal found 11/8£644
Tue 3/1106:07 -
2 stops19h 13m
Wed 11/1106:30 -
2 stops14h 48m
Deal found 8/8£644
Sun 27/914:55 -
1 stop11h 00m
Tue 6/1007:30 -
2 stops19h 18m
Deal found 8/8£650

Find flight deals from Harrisburg to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 August 2026.

Round-trip from

£547

One-way from

£244

Popular in

June

Cheapest in

October

Average price

£707
United Airlines
  • United Airlines
  • 7/12-9/12
  • 3 total stops
  • 48h 14m total
  • Harrisburg to London
Search Deals
United Airlines
  • United Airlines
  • 10/11
  • 1 total stop
  • 12h 55m total
  • Harrisburg to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Harrisburg to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from Harrisburg to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 7/12

06:30-10:05

2 stops22h 35m

London Heathrow

Wed 9/12

08:00-18:40

2 stops15h 40m

£567

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 2/12

06:00-06:40

1 stop19h 40m

London Heathrow

Sat 12/12

07:30-21:20

2 stops18h 50m

£671

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 2/12

12:09-09:00

2 stops15h 51m

London Heathrow

Sat 12/12

08:40-23:12

2 stops19h 32m

£681

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sat 28/11

20:13-07:10

2 stops29h 57m

London Heathrow

Sat 5/12

06:35-18:40

2 stops17h 05m

£683

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Fri 2/10

10:40-06:45

1 stop15h 05m

London Heathrow

Mon 5/10

17:55-21:48

2 stops32h 53m

£684
Fastest return journey

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sun 23/8

12:22-07:10

1 stop13h 48m

London Heathrow

Sat 5/9

06:30-17:39

2 stops16h 09m

£686

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Fri 27/11

14:00-06:25

1 stop11h 25m

London Heathrow

Sat 5/12

08:40-23:12

2 stops19h 32m

£686

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 26/8

12:22-07:10

1 stop13h 48m

London Heathrow

Tue 8/9

06:30-23:15

2 stops21h 45m

£686

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sun 6/9

17:54-11:55

1 stop13h 01m

London Heathrow

Sun 13/9

06:50-23:30

2 stops21h 40m

£686
Cheapest one-way
Fastest single journey

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Tue 10/11

14:00-07:55

1 stop12h 55m

£244

Flights are sorted by cheapest return flights first.

Deals found on 8/8

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Harrisburg to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Harrisburg with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Harrisburg to London Heathrow Airport

How much does it cost for a return flight from Harrisburg to London Heathrow Airport?

Airfare is below average for this route at the moment.

Harrisburg to London Heathrow Airport flights typically cost between £664 and £803 in December.
The cheapest return price found within the last 5 days was £547 on United Airlines (7 Dec–9 Dec).

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harrisburg to London Heathrow?

    Located just 8.5 mi from the city center, Harrisburg is the airport most travelers will use when flying to London Heathrow from Harrisburg. Booking flights from Harrisburg (MDT) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • How long is the flight from Harrisburg to London Heathrow Airport?

    A quick flight from Harrisburg to London Heathrow Airport can take about 20h 50m. United Airlines provides one of the quickest options available for as low as £564. The distance from Harrisburg to London Heathrow Airport is about 3581 mi.

  • Can I find deals for flights from Harrisburg to Heathrow that include hotel bookings?

    Yes. In addition to deals on Harrisburg to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Harrisburg to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Heathrow.

  • Can I find deals for business class flights from Harrisburg to Heathrow?

    Yes. Cheapflights offers flight deals from Harrisburg to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

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How does Cheapflights help users find flights from Harrisburg to Heathrow?

Cheapflights helps you search for flights from Harrisburg to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Harrisburg to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Harrisburg by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Harrisburg to Heathrow with no change fees?

Yes, we can. To see specific flights from Harrisburg to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Harrisburg to Heathrow become cheaper?

Of course! You can now track prices for flights from Harrisburg to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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