How long is the flight from Harrisburg to London?

For as low as £652, United Airlines can have you in London from Harrisburg in 12h 55m. 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.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 City and Harrisburg - London Gatwick.

What is the cheapest time of day to fly from MDT to LON?

When flying from Harrisburg to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£249+ Cheap Flights from Harrisburg to London

Cheap flight deals from Harrisburg to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 8 October 2026.

Mon 7/1217:39 -

1 stop13h 21m

Wed 9/1211:05 -

2 stops34h 53m

Deal found 6/10£556

Wed 25/1109:39 -

1 stop17h 11m

Tue 8/1206:00 -

2 stops20h 07m

Deal found 3/10£649

Sun 6/1209:56 -

1 stop15h 39m

Fri 11/1206:05 -

2 stops20h 02m

Deal found 4/10£651

Mon 2/1114:38 -

1 stop11h 02m

Mon 9/1109:00 -

2 stops19h 44m

Deal found 5/10£652

Sun 6/1206:00 -

1 stop19h 25m

Fri 11/1206:30 -

2 stops14h 46m

Deal found 4/10£652

Thu 3/1206:00 -

1 stop19h 25m

Fri 11/1206:30 -

2 stops14h 46m

Deal found 6/10£653

Wed 2/1212:28 -

1 stop12h 57m

Sat 12/1206:20 -

2 stops21h 50m

Deal found 7/10£658

Find flight deals from Harrisburg to London

Round-trip from	£556
One-way from	£249
Popular in	October
Cheapest in	November
Average price	£1,089

United Airlines
7/12-9/12
3 total stops
48h 14m total
Harrisburg to London

Search Deals

United Airlines
3/11-31/12
1 total stop
18h 25m total
Harrisburg to London

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£25 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Tue 3/11

06:30-05:55

1 stop18h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£249

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sat 21/11

17:41-05:55

1 stop31h 14m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£280

Fastest return journey

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 14/10

12:13-07:15

2 stops14h 02m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£307

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sat 31/10

17:41-05:55

1 stop32h 14m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£390

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 7/12

17:39-12:00

1 stop13h 21m

London Heathrow

Wed 9/12

11:05-16:58

2 stops34h 53m

£556

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 14/10

20:09-12:05

3 stops34h 56m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£620

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Sat 28/11

12:30-06:25

1 stop12h 55m

London Heathrow

Sat 5/12

06:30-23:10

2 stops21h 40m

£652

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 3/12

06:00-06:25

1 stop19h 25m

London Heathrow

Fri 11/12

06:30-16:16

2 stops14h 46m

£653

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 2/11

20:13-07:10

2 stops29h 57m

London Heathrow

Mon 9/11

09:00-23:44

2 stops19h 44m

£654

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 2/12

12:28-06:25

1 stop12h 57m

London Heathrow

Sat 12/12

06:20-23:10

2 stops21h 50m

£658

Flights are sorted by cheapest return flights first.

Deals found on 6/10

Showing 1-10 of 13 resultsSorted by cheapest first

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.

MDT-LON

MDT-LHR

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

MDT-LON

MDT-LHR

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

Currently, April is the cheapest month in which you can book a flight from Harrisburg to London (average of £559). Flying from Harrisburg to London in June is currently the most expensive (average of £883). 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

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 £652, United Airlines can have you in London from Harrisburg in 12h 55m. 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 City and Harrisburg - London Gatwick.
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, April is the cheapest month in which you can book a flight from Harrisburg to London (average of £559). Flying from Harrisburg to London in June is currently the most expensive (average of £883). 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

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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?

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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?

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Cheap flights from Harrisburg to London from £249

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Harrisburg to London

Cheapest flights from Harrisburg to LondonExplore 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 8 October 2026.

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 8 October 2026.

Best flights from Harrisburg to LondonDiscover carefully curated flight deals from Harrisburg to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Discover carefully curated flight deals from Harrisburg to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Last-minute flights from Harrisburg to LondonDiscover last-minute flight deals from Harrisburg to London. Data last updated 8 October 2026 and is based on user searches.

Discover last-minute flight deals from Harrisburg to London. Data last updated 8 October 2026 and is based on user searches.

One-way flights from Harrisburg to LondonSearch for one-way flight options from Harrisburg to London. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.

Search for one-way flight options from Harrisburg to London. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.

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Best time to book a flight from Harrisburg to London

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Cheapflights Insights

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

Related info for your journey

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

How long is the flight from Harrisburg to London?

What are the most popular routes from Harrisburg to London?

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

How can I find direct flights from Harrisburg to London?

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

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

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Other flights to London

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

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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 8 October 2026.

Best flights from Harrisburg to London
Discover carefully curated flight deals from Harrisburg to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.

Last-minute flights from Harrisburg to London
Discover last-minute flight deals from Harrisburg to London. Data last updated 8 October 2026 and is based on user searches.

One-way flights from Harrisburg to London
Search for one-way flight options from Harrisburg to London. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.