How long is the flight from Harrisburg to London Heathrow Airport?

For as low as $771, United Airlines can have you in London Heathrow Airport from Harrisburg in 16h 10m. The distance from Harrisburg to London Heathrow Airport is about 3581 mi.

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

Flying on Delta is currently your cheapest option to London Heathrow Airport, with prices starting at $659. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $747 and $789, respectively. Users have found that Delta is 32% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular airlines that fly from Harrisburg to London Heathrow Airport?

American Airlines, United Airlines and Delta are the most popular airlines when flying from Harrisburg to London Heathrow Airport.

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

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

Most accurate provider : When it comes to deals on Harrisburg-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Harrisburg-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Harrisburg-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harrisburg-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harrisburg-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Harrisburg (MDT) is the airport you will fly out of if you book a flight from Harrisburg to London Heathrow. You should not have trouble finding flights to London Heathrow from Harrisburg; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Harrisburg airport to London Heathrow. It is only a 8.5 mi journey to Harrisburg (MDT) from Harrisburg’s city center.

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

Yes. In addition to deals on Harrisburg to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Harrisburg to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Heathrow.

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

Yes. Cheapflights offers flight deals from Harrisburg to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$342+ Cheap Flights from Harrisburg to London Heathrow Airport

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Cheap flight deals from Harrisburg to Heathrow

Cheapest

Best

Last-minute

One-way

Cheapest flights from Harrisburg to Heathrow
Explore the most affordable flight options available from Harrisburg to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.

Mon 12/75:39 pm -

1 stop13h 21m

Wed 12/911:05 am -

2 stops34h 53m

Deal found 10/22

$767

Wed 12/212:20 pm -

1 stop14h 25m

Sat 12/128:40 am -

2 stops20h 08m

Deal found 10/22

$866

Wed 11/118:13 pm -

1 stop29h 27m

Mon 11/166:50 am -

2 stops21h 54m

Deal found 10/22

$871

Tue 12/110:35 am -

1 stop19h 15m

Thu 12/106:35 am -

2 stops17h 15m

Deal found 10/26

$872

Best flights from Harrisburg to Heathrow
Discover carefully curated flight deals from Harrisburg to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.

Mon 12/72:50 pm -

2 stops16h 10m

Wed 12/911:05 am -

2 stops34h 53m

Deal found 10/22

$771

Tue 1/56:10 am -

2 stops19h 15m

Thu 1/1411:45 am -

2 stops16h 01m

Deal found 10/22

$882

Wed 11/118:13 pm -

1 stop29h 27m

Mon 11/166:50 am -

2 stops21h 54m

Deal found 10/25

$871

Tue 1/56:20 am -

1 stop18h 35m

Thu 1/146:50 am -

2 stops15h 09m

Deal found 10/22

$882

Mon 12/710:35 am -

1 stop15h 05m

Mon 12/149:30 am -

2 stops33h 30m

Deal found 10/23

$882

Tue 12/82:50 pm -

1 stop10h 50m

Tue 12/151:00 pm -

2 stops32h 58m

Deal found 10/24

$886

Last-minute flights from Harrisburg to Heathrow
Discover last-minute flight deals from Harrisburg to Heathrow. Data last updated October 27, 2026 and is based on user searches.

Wed 11/118:13 pm -

1 stop29h 27m

Mon 11/166:50 am -

2 stops21h 54m

Deal found 10/22

$871

Wed 11/1112:30 pm -

1 stop18h 10m

Mon 11/1611:20 am -

1 stop16h 46m

Deal found 10/23

$896

Wed 11/186:30 am -

1 stop18h 25m

Mon 11/236:50 am -

2 stops15h 04m

Deal found 10/26

$876

Wed 11/1811:25 am -

1 stop14h 55m

Mon 11/232:10 pm -

1 stop15h 03m

Deal found 10/26

$906

Sat 11/219:39 am -

2 stops40h 51m

Sat 11/286:40 am -

2 stops21h 05m

Deal found 10/23

$1,027

Sat 11/217:55 pm -

1 stop31h 40m

Sat 11/285:00 pm -

1 stop11h 05m

Deal found 10/23

$1,267

Find flight deals from Harrisburg to Heathrow

Most accurate provider	Ovago 3 stars
Most trusted provider	Ovago 3 stars
Round-trip from	$767 (United Airlines)
One-way from	$342 (KLM)
Popular in	April
Cheapest in	October
Average price	$749

Provider with most accurate pricing for Harrisburg-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for Harrisburg-London Heathrow flights.

Search Deals

From Harrisburg to London Heathrow

Search Deals

One-way flight from Harrisburg to London Heathrow

Search Deals

High demand for flights, 6% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Harrisburg to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 11/12

12:30 pm-7:50 am

1 stop14h 20m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$342

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 11/12

12:09 pm-7:50 am

2 stops14h 41m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$347

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Thu 11/12

10:11 am-10:50 am

3 stops19h 39m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$632

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 12/7

2:50 pm-12:00 pm

2 stops16h 10m

London Heathrow

Wed 12/9

11:05 am-4:58 pm

2 stops34h 53m

$771

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Wed 11/11

8:13 pm-6:40 am

1 stop29h 27m

London Heathrow

Mon 11/16

6:50 am-11:44 pm

2 stops21h 54m

$871

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Tue 1/5

6:10 am-6:25 am

2 stops19h 15m

London Heathrow

Thu 1/14

11:45 am-10:46 pm

2 stops16h 01m

$882

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Tue 1/5

6:20 am-5:55 am

1 stop18h 35m

London Heathrow

Thu 1/14

6:50 am-4:59 pm

2 stops15h 09m

$882

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Mon 12/7

10:35 am-6:40 am

1 stop15h 05m

London Heathrow

Mon 12/14

9:30 am-2:00 pm

2 stops33h 30m

$882

HarrisburgLondon

MDT Harrisburg - LHR London Heathrow

MDTLHR

Harrisburg

Tue 12/8

2:50 pm-6:40 am

1 stop10h 50m

London Heathrow

Tue 12/15

1:00 pm-4:58 pm

2 stops32h 58m

$886

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/24

Sorted by cheapest first

Compare providers for flights from Harrisburg to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to Heathrow in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Harrisburg-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Harrisburg-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Harrisburg-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harrisburg-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harrisburg-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harrisburg to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Harrisburg with our price prediction graph.

MDT-LHR

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.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Harrisburg to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,676 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,676 reviews

Delta

7.8

Good

8,676 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,440 reviews

Delta

7.8

Good

8,676 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,187 reviews

Delta

7.8

Good

8,676 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

What airport do you fly from for flights from Harrisburg to London Heathrow?
Harrisburg (MDT) is the airport you will fly out of if you book a flight from Harrisburg to London Heathrow. You should not have trouble finding flights to London Heathrow from Harrisburg; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Harrisburg airport to London Heathrow. It is only a 8.5 mi journey to Harrisburg (MDT) from Harrisburg’s city center.
How long is the flight from Harrisburg to London Heathrow Airport?
For as low as $771, United Airlines can have you in London Heathrow Airport from Harrisburg in 16h 10m. The distance from Harrisburg to London Heathrow Airport is about 3581 mi.
What are the cheapest airlines flying from Harrisburg to London Heathrow Airport round-trip?
Flying on Delta is currently your cheapest option to London Heathrow Airport, with prices starting at $659. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $747 and $789, respectively. Users have found that Delta is 32% cheaper than the other options available to this destination.
Can I find deals for flights from Harrisburg to Heathrow that include hotel bookings?
Yes. In addition to deals on Harrisburg to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harrisburg to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Heathrow.
Can I find deals for business class flights from Harrisburg to Heathrow?
Yes. Cheapflights offers flight deals from Harrisburg to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 3 airlines flying from Harrisburg to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$659	Average$872	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$747	Average$984	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$789	Average$954	FlexibilityNo cancel fee	On-time71%

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$342+ Cheap flights from Harrisburg (MDT) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harrisburg to Heathrow with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Harrisburg to Heathrow

Cheapest flights from Harrisburg to HeathrowExplore the most affordable flight options available from Harrisburg to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.

Explore the most affordable flight options available from Harrisburg to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.

Best flights from Harrisburg to HeathrowDiscover carefully curated flight deals from Harrisburg to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.

Discover carefully curated flight deals from Harrisburg to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.

Last-minute flights from Harrisburg to HeathrowDiscover last-minute flight deals from Harrisburg to Heathrow. Data last updated October 27, 2026 and is based on user searches.

Discover last-minute flight deals from Harrisburg to Heathrow. Data last updated October 27, 2026 and is based on user searches.

One-way flights from Harrisburg to HeathrowSearch for one-way flight options from Harrisburg to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.

Search for one-way flight options from Harrisburg to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.

Find flight deals from Harrisburg to Heathrow

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Harrisburg to London Heathrow Airport that are best for you.

Compare providers for flights from Harrisburg to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to Heathrow in October.

Best time to book a flight from Harrisburg to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Harrisburg with our price prediction graph.

Reviews of airlines servicing Heathrow

Related info for your journey

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

How long is the flight from Harrisburg to London Heathrow Airport?

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

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

How can I find direct flights from Harrisburg to Heathrow?

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

Traveling to a place near London Heathrow Airport?

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 Heathrow

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

Complete your trip

Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Harrisburg to Heathrow by cabin class

Find flights from Harrisburg to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 27, 2026.

Harrisburg and Heathrow flights

Browse other Harrisburg and Heathrow flight options. Last updated on October 27, 2026.

Popular flight searches

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Top 3 airlines flying from Harrisburg to Heathrow

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Cheapest flights from Harrisburg to Heathrow
Explore the most affordable flight options available from Harrisburg to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.

Best flights from Harrisburg to Heathrow
Discover carefully curated flight deals from Harrisburg to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.

Last-minute flights from Harrisburg to Heathrow
Discover last-minute flight deals from Harrisburg to Heathrow. Data last updated October 27, 2026 and is based on user searches.

One-way flights from Harrisburg to Heathrow
Search for one-way flight options from Harrisburg to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.