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$399+ Cheap flights from Harrisburg (MDT) to London (LON)

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — LON
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$524
(Delta)

One-way from

$399
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$711
From Harrisburg to London (LON)
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One-way flight from Harrisburg to London (LON)
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Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:33 pmMDT - LHR
1 stop15h 12mDelta
Tue 11/1111:30 amLHR - MDT
2 stops16h 34mDelta
Deal found 9/15$524
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:00 amMDT - LHR
1 stop20h 15mDelta
Thu 10/166:30 amLHR - MDT
2 stops21h 38mDelta
Deal found 9/15$525
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:25 pmMDT - LHR
1 stop14h 05mDelta
Wed 10/228:40 amLHR - MDT
2 stops19h 28mDelta
Deal found 9/16$526
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:44 amMDT - LHR
2 stops16h 01mDelta
Wed 11/126:20 amLHR - MDT
2 stops21h 54mDelta
Deal found 9/15$528
This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:25 pmMDT - LHR
1 stop14h 05mKLM
Wed 10/223:15 pmLHR - MDT
1 stop12h 53mKLM
Deal found 9/15$532
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:23 pmMDT - LHR
1 stop14h 07mDelta
Sun 10/128:40 amLHR - MDT
2 stops19h 28mDelta
Deal found 9/15$575
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:23 pmMDT - LCY
2 stops17h 17mDelta
Wed 10/87:45 amLCY - MDT
2 stops20h 15mDelta
Deal found 9/15$582
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:28 pmMDT - LHR
2 stops12h 52mDelta
Sun 10/55:25 pmLHR - MDT
1 stop34h 43mDelta
Deal found 9/15$614
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:44 amMDT - LHR
1 stop15h 06mDelta
Mon 11/106:20 amLHR - MDT
2 stops21h 44mDelta
Deal found 9/17$625
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:25 amMDT - LCY
2 stops17h 55mMultiple Airlines
Mon 11/105:15 pmLCY - MDT
2 stops31h 00mMultiple Airlines
Deal found 9/17$738
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:25 amMDT - LCY
2 stops21h 15mMultiple Airlines
Fri 11/75:15 pmLCY - MDT
2 stops28h 38mMultiple Airlines
Deal found 9/16$801
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/58:21 pmMDT - LGW
1 stop32h 39mMultiple Airlines
Sun 10/122:00 pmLGW - MDT
1 stop32h 12mMultiple Airlines
Deal found 9/15$801

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 17, 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 11/5

11:44 am-7:50 am

1 stop15h 06m

London Heathrow

Wed 11/12

9:00 am-11:14 pm

2 stops19h 14m

$524

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Mon 11/3

12:33 pm-8:45 am

1 stop15h 12m

London Heathrow

Tue 11/11

11:30 am-11:04 pm

2 stops16h 34m

$524

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 10/22

11:44 am-7:15 am

1 stop14h 31m

London Heathrow

Wed 10/29

6:30 am-11:08 pm

2 stops20h 38m

$525

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Tue 10/7

6:00 am-7:15 am

1 stop20h 15m

London Heathrow

Thu 10/16

6:30 am-11:08 pm

2 stops21h 38m

$525

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 10/15

11:44 am-1:30 pm

1 stop20h 46m

London Heathrow

Wed 10/22

6:30 am-11:08 pm

2 stops21h 38m

$525

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Wed 10/1

6:23 pm-4:40 pm

2 stops17h 17m

London City

Wed 10/8

7:45 am-11:00 pm

2 stops20h 15m

$582

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Wed 10/22

6:25 pm-4:40 pm

2 stops17h 15m

London City

Wed 10/29

7:45 am-11:08 pm

2 stops19h 23m

$582

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Thu 11/6

10:25 am-9:20 am

2 stops17h 55m

London City

Mon 11/10

5:15 pm-7:15 pm

2 stops31h 00m

$738

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Fri 10/31

10:25 am-11:40 am

2 stops21h 15m

London City

Fri 11/7

5:15 pm-4:53 pm

2 stops28h 38m

$801

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Sun 10/5

8:21 pm-10:00 am

1 stop32h 39m

London Gatwick

Sun 10/12

2:00 pm-5:12 pm

1 stop32h 12m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 32 results
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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 round-trip 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, November is the cheapest month in which you can book a flight from Harrisburg to London (average of $661). Flying from Harrisburg to London in June is currently the most expensive (average of $1,097). 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.

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

Find hourly flight availability from Harrisburg to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

One of the essential ways to save on airfare from Harrisburg to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 45% on airfare.

How much does it cost to fly round-trip from Harrisburg to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and British Airways from Harrisburg to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
British Airways
6.7
Okay
7,367 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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?

    Located just 8.5 mi from the city center, Harrisburg is the airport most travelers will use when flying to London from Harrisburg. Booking flights from Harrisburg (MDT) to London should be relatively easy as there are 0 daily outbound flights to London from 4 different airlines.

  • How long is the flight from Harrisburg to London?

    Delta can get you from Harrisburg to London in just under 15h 06m. Your travel time can differ by up to . Airlines will cover a distance of 3581 mi.

  • What are the cheapest airlines flying from Harrisburg to London round-trip?

    According to our current data, Delta ($531), American Airlines ($688), and British Airways ($694) offers the cheapest pricing from Harrisburg to London. These flights start at 35% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $399. Lufthansa flights start at $443 while deals on Delta start at $649 one-way.

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

    Most travelers choose Harrisburg - London Heathrow, Harrisburg - London City or Harrisburg - London Gatwick when deciding on the best route 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 vacation 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, November is the cheapest month in which you can book a flight from Harrisburg to London (average of $661). Flying from Harrisburg to London in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Eastbourne
Sutton

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Alternative routes for Harrisburg to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Harrisburg to London

Discover the top 4 airlines that operate flights from Harrisburg to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$531Average$754FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$688Average$854FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$694Average$758FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$725Average$979FlexibilityNo cancel feeOn-time69%

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