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Cheap flights from Harrisburg to London from £255

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LON
20 Jun — 27 Jun1
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 21 May 2026.

Tue 18/812:17
MDT
-
LHR
1 stop13h 53m
Delta
Wed 2/908:40
LHR
-
MDT
2 stops20h 00m
Delta
Deal found 19/5£646
Tue 8/918:25
MDT
-
LHR
1 stop11h 55m
Delta
Wed 23/909:55
LHR
-
MDT
2 stops18h 45m
Delta
Deal found 21/5£646
Tue 8/912:30
MDT
-
LHR
2 stops17h 50m
Delta
Mon 14/908:40
LHR
-
MDT
2 stops20h 00m
Delta
Deal found 20/5£649
Wed 26/817:15
MDT
-
LHR
2 stops14h 50m
Delta
Tue 8/908:40
LHR
-
MDT
2 stops19h 04m
Delta
Deal found 21/5£650
Sun 23/812:17
MDT
-
LHR
1 stop13h 53m
Delta
Sat 5/908:55
LHR
-
MDT
2 stops18h 49m
Delta
Deal found 19/5£652
Wed 12/811:55
MDT
-
LHR
1 stop13h 30m
Delta
Wed 19/811:30
LHR
-
MDT
2 stops16h 51m
Delta
Deal found 17/5£653
Tue 18/812:17
MDT
-
LGW
2 stops16h 08m
Delta
Wed 2/910:25
LGW
-
MDT
2 stops18h 15m
Delta
Deal found 19/5£654
Wed 26/819:59
MDT
-
LHR
2 stops16h 06m
Lufthansa
Tue 8/910:50
LHR
-
MDT
2 stops17h 35m
Lufthansa
Deal found 18/5£658
Mon 7/914:26
MDT
-
LHR
1 stop11h 24m
British Airways
Tue 15/906:15
LHR
-
MDT
2 stops19h 30m
British Airways
Deal found 20/5£659
Mon 7/912:30
MDT
-
LCY
2 stops16h 00m
Delta
Mon 14/909:20
LCY
-
MDT
2 stops19h 20m
Delta
Deal found 20/5£668
Tue 8/912:25
MDT
-
LGW
2 stops16h 00m
Delta
Wed 23/910:25
LGW
-
MDT
2 stops18h 15m
Delta
Deal found 19/5£702
Tue 4/812:17
MDT
-
LGW
2 stops16h 08m
Delta
Tue 8/910:35
LGW
-
MDT
2 stops17h 09m
Delta
Deal found 17/5£711

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 21 May 2026.

Round-trip from

£646

One-way from

£255

Popular in

July

Cheapest in

January

Average price

£675
Delta
  • Delta
  • 18/8-2/9
  • 3 total stops
  • 33h 53m total
  • Harrisburg to London
Search Deals
KLM
  • KLM
  • 23/7
  • 1 total stop
  • 17h 18m total
  • Harrisburg to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 21 May 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

Tue 8/9

12:25-06:25

1 stop13h 00m

London Heathrow

Wed 23/9

09:55-23:40

2 stops18h 45m

£646

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 7/10

12:25-06:25

1 stop13h 00m

London Heathrow

Tue 13/10

06:30-17:25

2 stops15h 55m

£647

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 26/8

11:55-06:25

1 stop13h 30m

London Heathrow

Tue 8/9

06:30-22:44

2 stops21h 14m

£647

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Tue 18/8

12:17-09:25

2 stops16h 08m

London Gatwick

Wed 2/9

10:25-23:40

2 stops18h 15m

£656

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Mon 7/9

12:30-09:30

2 stops16h 00m

London City

Mon 14/9

09:20-23:40

2 stops19h 20m

£668

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Tue 8/9

18:25-16:40

2 stops17h 15m

London City

Mon 14/9

09:20-23:40

2 stops19h 20m

£668

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 5/8

15:03-13:15

1 stop17h 12m

London Heathrow

Wed 9/9

11:15-23:40

1 stop17h 25m

£669

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 7/10

14:56-11:20

1 stop15h 24m

London Heathrow

Tue 13/10

11:15-23:38

1 stop17h 23m

£669

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Tue 8/9

12:25-09:25

2 stops16h 00m

London Gatwick

Wed 23/9

10:25-23:40

2 stops18h 15m

£702

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Tue 4/8

12:17-09:25

2 stops16h 08m

London Gatwick

Tue 8/9

10:35-22:44

2 stops17h 09m

£711

Flights are sorted by cheapest return flights first.

Deals found on 17/5

Showing 1-10 of 41 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 July is currently the most expensive (average of £616). 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 £646, Delta can have you in London from Harrisburg in 13h. 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 July is currently the most expensive (average of £616). 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?

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Milton Keynes
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Luton
Gatwick
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Ilford
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Watford
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Kingston upon Thames
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Guildford
Southall
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Southend-on-Sea

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

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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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