Cheap flights from Harrisburg to London from £329

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LON
7 Sep — 14 Sep1
1 adult

Cheap 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 2 September 2025.

Round-trip from

£390

One-way from

£329

Popular in

December

Cheapest in

October

Average price

£536
Delta
  • Delta
  • 5/11-12/11
  • 3 total stops
  • 34h 31m total
  • Harrisburg to London
14/1
  • 14/1
  • 2 total stops
  • 21h 16m total
  • Harrisburg to London
Highest demand for flights based on searches. 4% potential increase in price (£19 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Harrisburg to London

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 2 September 2025.

Mon 3/1111:44MDT - LHR
1 stop16h 16mDelta
Tue 11/1106:20LHR - MDT
2 stops21h 44mDelta
Deal found 2/9£390
Wed 22/1018:25MDT - LHR
1 stop11h 45mDelta
Wed 29/1011:45LHR - MDT
2 stops15h 15mDelta
Deal found 2/9£391
Wed 22/1011:44MDT - LHR
1 stop18h 26mKLM
Wed 29/1015:50LHR - MDT
1 stop23h 09mKLM
Deal found 2/9£395
Thu 2/1006:00MDT - LHR
1 stop20h 15mDelta
Tue 7/1011:30LHR - MDT
2 stops16h 30mDelta
Deal found 2/9£427
Mon 22/912:28MDT - LHR
1 stop15h 27mDelta
Mon 27/1006:30LHR - MDT
2 stops20h 38mDelta
Deal found 2/9£428
Mon 22/911:43MDT - LHR
1 stop14h 02mKLM
Mon 27/1015:50LHR - MDT
1 stop23h 09mKLM
Deal found 2/9£433
Sat 11/1006:00MDT - LHR
1 stop19h 45mDelta
Sat 18/1020:25LHR - MDT
2 stops20h 28mDelta
Deal found 2/9£473
Wed 15/1014:33MDT - LHR
1 stop11h 22mUnited Airlines
Wed 22/1014:05LHR - MDT
2 stops31h 47mUnited Airlines
Deal found 1/9£542
Mon 3/1114:35MDT - LCY
2 stops17h 15mMultiple Airlines
Tue 11/1119:10LCY - MDT
2 stops28h 45mMultiple Airlines
Deal found 30/8£578
Thu 2/1010:25MDT - LCY
2 stops21h 05mMultiple Airlines
Thu 9/1019:20LCY - MDT
2 stops28h 39mMultiple Airlines
Deal found 2/9£616
Mon 29/910:57MDT - LGW
1 stop18h 03mMultiple Airlines
Mon 6/1013:05LGW - MDT
2 stops55h 23mMultiple Airlines
Deal found 1/9£618
Fri 7/1114:35MDT - LCY
2 stops16h 05mMultiple Airlines
Fri 28/1109:55LCY - MDT
2 stops33h 03mMultiple Airlines
Deal found 30/8£655

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 2 September 2025.
Use the filters below to find and compare flights from Harrisburg to London that are best for you.

Fly from

Harrisburg

Fly to

London

Route

Depart

Return

Price

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 5/11

12:33-08:45

1 stop15h 12m

London Heathrow

Wed 12/11

08:55-23:14

2 stops19h 19m

£390

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Mon 3/11

11:44-09:00

1 stop16h 16m

London Heathrow

Tue 11/11

06:20-23:04

2 stops21h 44m

£390

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 19/11

06:00-06:25

1 stop19h 25m

London Heathrow

Wed 3/12

09:00-23:12

2 stops19h 12m

£390

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 22/10

18:25-11:10

1 stop11h 45m

London Heathrow

Wed 29/10

11:45-23:00

2 stops15h 15m

£391

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 22/10

11:44-11:10

1 stop18h 26m

London Heathrow

Wed 29/10

15:50-10:59

1 stop23h 09m

£395

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 5/11

12:33-08:45

1 stop15h 12m

London Heathrow

Wed 12/11

08:55-23:14

1 stop19h 19m

£395

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Mon 3/11

14:35-12:50

2 stops17h 15m

London City

Tue 11/11

19:10-18:55

2 stops28h 45m

£578

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Tue 27/1

10:34-12:50

2 stops21h 16m

London City

Wed 4/2

13:30-18:59

2 stops34h 29m

£578

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Thu 16/10

14:33-12:30

2 stops16h 57m

London City

Wed 22/10

18:05-18:59

2 stops29h 54m

£616

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Thu 2/10

10:25-12:30

2 stops21h 05m

London City

Thu 9/10

19:20-18:59

2 stops28h 39m

£616

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 37 results
1
2
3
4

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 £112). Flying from Harrisburg to London in August is currently the most expensive (average of £164). 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.

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 £390, Delta can have you in London from Harrisburg in 15h 12m. The distance from Harrisburg to London is about 3581 mi.

  • What are the cheapest airlines to fly from Harrisburg to London one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as £342. However, be on the lookout for offers from KLM and Lufthansa, as they are both options that can get you from Harrisburg to London for a low price.

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

  • 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 £112). Flying from Harrisburg to London in August is currently the most expensive (average of £164). 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
Croydon
Hounslow
Gatwick
Slough
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Ipswich
Watford
Folkestone
Chichester
Winchester
Dartford
Eastbourne
Guildford
Bishop's Stortford

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.

Alternative routes for Harrisburg to London

See prices for flight routes from nearby airports that may be better suited for you.

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.