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Cheap flights from Harrisburg to London from £243

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LON
6 Jul — 13 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Harrisburg to London

Enter your travel dates to find the best prices.

Cheapest flights from Harrisburg to London
Explore the most affordable flight options available from Harrisburg to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 June 2026.

Mon 9/1110:35
MDT
-
LHR
1 stop16h 20m
United Airlines
Wed 11/1106:50
LHR
-
MDT
2 stops16h 38m
United Airlines
Deal found 1/6£566
Thu 1/1020:53
MDT
-
LGW
1 stop32h 07m
Multiple Airlines
Fri 9/1014:00
LGW
-
MDT
1 stop32h 24m
Multiple Airlines
Deal found 3/6£585
Mon 10/815:03
MDT
-
LHR
1 stop17h 12m
Delta
Tue 25/806:30
LHR
-
MDT
2 stops16h 09m
Delta
Deal found 2/6£647
Tue 18/815:03
MDT
-
LHR
1 stop17h 12m
Delta
Wed 2/909:55
LHR
-
MDT
2 stops18h 48m
Delta
Deal found 2/6£648
Tue 8/906:00
MDT
-
LHR
1 stop19h 25m
Delta
Wed 23/908:40
LHR
-
MDT
2 stops20h 00m
Delta
Deal found 4/6£654
Tue 18/812:22
MDT
-
LGW
2 stops16h 03m
Delta
Wed 2/910:25
LGW
-
MDT
2 stops18h 18m
Delta
Deal found 2/6£656
Thu 3/918:24
MDT
-
LHR
1 stop13h 51m
Delta
Wed 4/1106:30
LHR
-
MDT
2 stops22h 08m
Delta
Deal found 5/6£663
Tue 8/912:10
MDT
-
LHR
1 stop14h 40m
British Airways
Wed 23/913:00
LHR
-
MDT
1 stop15h 11m
British Airways
Deal found 6/6£663
Thu 3/911:55
MDT
-
LGW
2 stops16h 30m
Delta
Wed 4/1110:00
LGW
-
MDT
2 stops18h 38m
Delta
Deal found 5/6£671
Thu 8/1012:25
MDT
-
LGW
2 stops16h 00m
Delta
Mon 19/1010:25
LGW
-
MDT
2 stops17h 21m
Delta
Deal found 4/6£679
Sun 23/812:22
MDT
-
LGW
2 stops16h 03m
Delta
Sat 5/910:25
LGW
-
MDT
2 stops17h 56m
Delta
Deal found 6/6£705
Sat 8/818:24
MDT
-
LGW
2 stops16h 36m
Delta
Tue 18/810:35
LGW
-
MDT
2 stops18h 08m
Delta
Deal found 4/6£727

Find flight deals from Harrisburg to London

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to London (LON). 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 6 June 2026.

Round-trip from

£566

One-way from

£243

Popular in

July

Cheapest in

January

Average price

£610
United Airlines
  • United Airlines
  • 9/11-11/11
  • 3 total stops
  • 32h 58m total
  • Harrisburg to London
Search Deals
British Airways
  • British Airways
  • 15/9
  • 1 total stop
  • 15h 49m total
  • Harrisburg to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Harrisburg to London 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 6 June 2026.
Use the filters below to find and compare flights from Harrisburg to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Mon 9/11

10:35-07:55

1 stop16h 20m

London Heathrow

Wed 11/11

06:50-18:28

2 stops16h 38m

£566

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Sun 23/8

12:22-10:20

2 stops16h 58m

London Heathrow

Sat 5/9

08:40-23:21

2 stops19h 41m

£651

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 8/9

17:00-13:15

2 stops15h 15m

London Heathrow

Wed 23/9

08:40-23:40

2 stops20h 00m

£651

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Tue 18/8

12:22-09:25

2 stops16h 03m

London Gatwick

Wed 2/9

10:25-23:43

2 stops18h 18m

£656
Fastest return journey

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Sun 23/8

18:24-13:15

1 stop13h 51m

London Heathrow

Sat 5/9

13:25-23:16

1 stop14h 51m

£669

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Thu 3/9

11:55-09:25

2 stops16h 30m

London Gatwick

Thu 29/10

10:00-23:38

2 stops17h 38m

£671

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Thu 3/9

11:55-09:25

2 stops16h 30m

London Gatwick

Tue 3/11

10:00-22:46

2 stops17h 46m

£671

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Thu 3/9

11:55-09:25

2 stops16h 30m

London Gatwick

Wed 4/11

10:00-23:38

2 stops18h 38m

£671

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 26/8

12:22-08:50

2 stops15h 28m

London Heathrow

Tue 8/9

09:55-22:44

2 stops17h 49m

£674

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Thu 8/10

12:25-09:25

2 stops16h 00m

London Gatwick

Mon 19/10

10:25-22:46

2 stops17h 21m

£679

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from Harrisburg to London

Have a flexible travel schedule? Discover the best time to fly to London 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

What is the cheapest month to book a flight from Harrisburg to London?

Currently, January is the cheapest month in which you can book a flight from Harrisburg to London (average of £390). Flying from Harrisburg to London in June is currently the most expensive (average of £814). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to London. 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?

    Most people fly from Harrisburg (MDT) if they book a flight from Harrisburg to London. On average, Harrisburg has 0 outbound flights to London per day from 0 airlines. Harrisburg is conveniently located just 8.5 mi from Harrisburg’s city center.

  • How long is the flight from Harrisburg to London?

    For as low as £619, United Airlines can have you in London from Harrisburg in 15h 53m. The distance from Harrisburg to London is about 3581 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Harrisburg to London?

    The most popular flight routes from Harrisburg to London are Harrisburg - London Heathrow, Harrisburg - London Gatwick and Harrisburg - London City.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Harrisburg to London?

    Currently, January is the cheapest month in which you can book a flight from Harrisburg to London (average of £390). Flying from Harrisburg to London in June is currently the most expensive (average of £814). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Wembley
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Gatwick
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Ilford
Slough
Hayes
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Watford
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Guildford
Borehamwood
Folkestone
Southall

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Alternative routes for Harrisburg to London

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Harrisburg to London 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 London?

Cheapflights simply makes it quick and affordable to book flights from Harrisburg to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Harrisburg to London with no change fees.

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

Of course! You can now track prices for flights from Harrisburg to London 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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