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Cheap flights from Harrisburg to London from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to London departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Harrisburg to London

Cheap round-trip flights

KLM Logo
6:25 pm - 1:30 pmMDT-LHR
14h 05m1 stop
KLM Logo
3:15 pm - 11:08 pmLHR-MDT
12h 53m1 stop
$523KLM
Find Deal
Wed, Oct 15 - Wed, Oct 22
Delta Logo
12:33 pm - 8:45 amMDT-LHR
15h 12m1 stop
Delta Logo
11:30 am - 11:04 pmLHR-MDT
16h 34m2 stops
$524Delta
Find Deal
Mon, Nov 3 - Tue, Nov 11
Delta Logo
11:44 am - 1:30 pmMDT-LHR
20h 46m1 stop
Delta Logo
6:30 am - 11:08 pmLHR-MDT
21h 38m2 stops
$525Delta
Find Deal
Wed, Oct 15 - Wed, Oct 22
Delta Logo
6:25 pm - 1:30 pmMDT-LHR
14h 05m1 stop
Delta Logo
8:40 am - 11:08 pmLHR-MDT
19h 28m2 stops
$526Delta
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
10:57 am - 10:00 amMDT-LGW
18h 03m1 stop
Multiple Airlines Logo
2:00 pm - 7:35 pmLGW-MDT
34h 35m1 stop
$600Multiple Airlines
Find Deal
Mon, Oct 6 - Thu, Oct 9
United Airlines Logo
6:15 am - 6:30 amMDT-LHR
19h 15m2 stops
United Airlines Logo
7:25 am - 9:29 amLHR-MDT
31h 04m2 stops
$637United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
United Airlines Logo
8:15 am - 6:30 amMDT-LHR
17h 15m2 stops
United Airlines Logo
6:50 am - 4:52 pmLHR-MDT
15h 02m2 stops
$641United Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Multiple Airlines Logo
2:40 pm - 8:25 amMDT-LHR
12h 45m2 stops
Multiple Airlines Logo
6:50 am - 4:34 pmLHR-MDT
14h 44m2 stops
$692Multiple Airlines
Find Deal
Thu, Jan 15 - Sat, Jan 24
Lufthansa Logo
10:25 am - 4:25 pmMDT-LCY
25h 00m2 stops
Lufthansa Logo
5:50 pm - 6:59 pmLCY-MDT
30h 09m2 stops
$1,376Lufthansa
Find Deal
Sun, Oct 5 - Sun, Oct 12
American Airlines Logo
11:27 am - 8:10 amMDT-LGW
15h 43m2 stops
American Airlines Logo
10:40 am - 11:48 pmLGW-MDT
18h 08m2 stops
$1,688American Airlines
Find Deal
Mon, Oct 6 - Thu, Oct 9

Delta flights from Harrisburg to London

Our best Delta deals on Harrisburg to London flight tickets
Delta
Nov 3
MDT12:33 pmHarrisburg
15h 12m
1 stop
LHR8:45 amLondon Heathrow
Nov 11
LHR11:30 amLondon Heathrow
16h 34m
2 stops
MDT11:04 pmHarrisburg
$524
Find similar
Delta
Oct 15
MDT11:44 amHarrisburg
20h 46m
1 stop
LHR1:30 pmLondon Heathrow
Oct 22
LHR6:30 amLondon Heathrow
21h 38m
2 stops
MDT11:08 pmHarrisburg
$525
Find similar
Delta
Oct 15
MDT6:25 pmHarrisburg
14h 05m
1 stop
LHR1:30 pmLondon Heathrow
Oct 22
LHR8:40 amLondon Heathrow
19h 28m
2 stops
MDT11:08 pmHarrisburg
$526
Find similar

KLM flights from Harrisburg to London

Our best KLM deals on Harrisburg to London flight tickets
KLM
Oct 15
MDT6:25 pmHarrisburg
14h 05m
1 stop
LHR1:30 pmLondon Heathrow
Oct 22
LHR3:15 pmLondon Heathrow
12h 53m
1 stop
MDT11:08 pmHarrisburg
$523
Find similar
KLM
Oct 15
MDT6:25 pmHarrisburg
14h 05m
1 stop
LHR1:30 pmLondon Heathrow
Oct 22
LHR3:15 pmLondon Heathrow
12h 53m
1 stop
MDT11:08 pmHarrisburg
$532
Find similar
KLM
Oct 5
MDT6:23 pmHarrisburg
14h 07m
1 stop
LHR1:30 pmLondon Heathrow
Oct 12
LHR5:25 pmLondon Heathrow
29h 05m
1 stop
MDT5:30 pmHarrisburg
$629
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
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

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 10/15

6:25 pm-1:30 pm

1 stop14h 05m

London Heathrow

Wed 10/22

3:15 pm-11:08 pm

1 stop12h 53m

$523

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 10/15

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 - LHR

MDTLHR

Harrisburg

Wed 10/15

6:25 pm-1:30 pm

1 stop14h 05m

London Heathrow

Wed 10/22

8:40 am-11:08 pm

2 stops19h 28m

$526

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Mon 10/6

10:57 am-10:00 am

1 stop18h 03m

London Gatwick

Thu 10/9

2:00 pm-7:35 pm

1 stop34h 35m

$600

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 10/1

6:15 am-6:30 am

2 stops19h 15m

London Heathrow

Wed 10/8

7:25 am-9:29 am

2 stops31h 04m

$637

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Wed 10/1

8:15 am-6:30 am

2 stops17h 15m

London Heathrow

Tue 10/7

6:50 am-4:52 pm

2 stops15h 02m

$641

HarrisburgLondon

MDT - LHR

MDTLHR

Harrisburg

Thu 1/15

2:40 pm-8:25 am

2 stops12h 45m

London Heathrow

Sat 1/24

6:50 am-4:34 pm

2 stops14h 44m

$692

HarrisburgLondon

MDT - LCY

MDTLCY

Harrisburg

Sun 10/5

10:25 am-4:25 pm

2 stops25h 00m

London City

Sun 10/12

5:50 pm-6:59 pm

2 stops30h 09m

$1,376

HarrisburgLondon

MDT - LGW

MDTLGW

Harrisburg

Mon 10/6

11:27 am-8:10 am

2 stops15h 43m

London Gatwick

Thu 10/9

10:40 am-11:48 pm

2 stops18h 08m

$1,688

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Harrisburg to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Harrisburg to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $680. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $980. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Harrisburg at noon is the least expensive time of day to depart. momondo users have found prices as low as $716 when looking at flights departing at noon. Flights to London are more costly in the morning, with an average ticket price of $1,290. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Harrisburg to London

Are you open to changing your travel dates? Check out the ideal times to fly from Harrisburg to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harrisburg to London (MDT to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to London

Direct flights

None
There are no direct flights from Harrisburg to London. There are no popular flight routes from Harrisburg to London.
Search flight deals

  • How far is Harrisburg to London by plane?

    There are 3595.2 mi between Harrisburg and London. By plane, this route typically takes 11h 22m.

  • When did momondo last update prices for flights from Harrisburg Airport to London?

    Prices for flights from Harrisburg Airport to London are refreshed on a daily basis.

  • How many operators does momondo search for flights from Harrisburg Airport to London?

  • How old do you have to be to fly from Harrisburg Airport to London?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Harrisburg Airport to London.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Harrisburg to London?

Best airlines flying from Harrisburg to London

Compare and see reviews for airlines that fly from Harrisburg to London with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $531Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $688Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $694Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
United AirlinesPriceFrom $725Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Wembley
Richmond
Croydon

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harrisburg to London for you.

Can I find flights from Harrisburg to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Harrisburg to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Harrisburg to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Harrisburg.

I’m not ready to book a flight from Harrisburg to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Harrisburg to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport