Find flights
When to book
FAQs

Cheap flights from Harrisburg to London from £246

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LON
15 Jun — 22 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 16 May 2026.

Wed 4/1110:35
MDT
-
LHR
1 stop19h 15m
United Airlines
Fri 6/1106:50
LHR
-
MDT
2 stops19h 30m
United Airlines
Deal found 11/5£569
Fri 9/1019:59
MDT
-
LHR
1 stop29h 56m
United Airlines
Mon 12/1006:50
LHR
-
MDT
2 stops21h 39m
United Airlines
Deal found 14/5£648
Tue 18/815:03
MDT
-
LHR
1 stop17h 12m
Delta
Wed 2/909:55
LHR
-
MDT
2 stops18h 45m
Delta
Deal found 16/5£650
Wed 26/811:55
MDT
-
LHR
1 stop13h 30m
Delta
Tue 8/909:55
LHR
-
MDT
2 stops17h 49m
Delta
Deal found 14/5£651
Thu 8/1014:56
MDT
-
LHR
1 stop11h 19m
Delta
Mon 12/1009:55
LHR
-
MDT
2 stops17h 51m
Delta
Deal found 13/5£652
Fri 21/812:17
MDT
-
LHR
2 stops13h 28m
Delta
Fri 28/808:40
LHR
-
MDT
2 stops20h 03m
Delta
Deal found 11/5£655
Wed 12/818:24
MDT
-
LHR
1 stop13h 51m
Delta
Wed 19/808:55
LHR
-
MDT
2 stops19h 26m
Delta
Deal found 16/5£656
Sun 23/818:24
MDT
-
LHR
1 stop13h 51m
Delta
Sat 5/911:30
LHR
-
MDT
2 stops16h 14m
Delta
Deal found 14/5£657
Tue 18/812:17
MDT
-
LGW
2 stops16h 08m
Delta
Wed 2/910:25
LGW
-
MDT
2 stops18h 15m
Delta
Deal found 15/5£659
Tue 8/912:25
MDT
-
LGW
2 stops16h 00m
Delta
Wed 23/910:25
LGW
-
MDT
2 stops18h 15m
Delta
Deal found 16/5£707
Wed 12/814:52
MDT
-
LCY
2 stops22h 03m
Lufthansa
Wed 19/809:15
LCY
-
MDT
2 stops19h 15m
Lufthansa
Deal found 16/5£733
Thu 8/1014:55
MDT
-
LCY
2 stops22h 00m
Lufthansa
Mon 12/1009:15
LCY
-
MDT
2 stops19h 14m
Lufthansa
Deal found 13/5£734

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 16 May 2026.

Round-trip from

£569

One-way from

£246

Popular in

July

Cheapest in

January

Average price

£678
United Airlines
  • United Airlines
  • 4/11-6/11
  • 3 total stops
  • 38h 45m total
  • Harrisburg to London
Search Deals
British Airways
  • British Airways
  • 7/9
  • 1 total stop
  • 12h 24m total
  • Harrisburg to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£64 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 16 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

Wed 26/8

11:55-11:20

1 stop18h 25m

London Heathrow

Tue 8/9

06:30-22:44

2 stops21h 14m

£650

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 7/10

12:25-06:25

1 stop13h 00m

London Heathrow

Wed 14/10

06:30-17:25

2 stops15h 55m

£651

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 7/10

12:25-11:20

1 stop17h 55m

London Heathrow

Mon 12/10

09:55-23:38

2 stops18h 43m

£652

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Fri 21/8

12:17-06:45

2 stops13h 28m

London Heathrow

Fri 28/8

08:40-23:43

2 stops20h 03m

£655

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Fri 9/10

12:30-07:10

1 stop13h 40m

London Heathrow

Mon 12/10

11:30-23:38

2 stops17h 08m

£657

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Wed 7/10

12:25-09:25

2 stops16h 00m

London Gatwick

Wed 14/10

10:25-22:46

2 stops17h 21m

£660

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

£661

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Wed 7/10

18:25-16:00

2 stops16h 35m

London Gatwick

Mon 12/10

10:25-23:38

2 stops18h 13m

£661

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 26/8

18:24-11:20

1 stop11h 56m

London Heathrow

Tue 8/9

11:15-23:40

1 stop17h 25m

£672

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 7/10

18:25-13:15

1 stop13h 50m

London Heathrow

Mon 12/10

09:20-23:38

1 stop19h 18m

£673

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 42 resultsSorted by cheapest first
1
2
3
...
5

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 £392). Flying from Harrisburg to London in February is currently the most expensive (average of £605). 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 £651, 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 £392). Flying from Harrisburg to London in February is currently the most expensive (average of £605). 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
Milton Keynes
Hounslow
Croydon
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Southall
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.