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

There are many flights that can get you from Maryland to London Heathrow Airport in 15h 40m. Fly via Icelandair, Scandinavian Airlines, or United Airlines to get the fastest option. The distance from Maryland to London Heathrow Airport is about 3664 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 Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

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 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 Maryland to London Heathrow Airport?

The most popular route from Maryland to London Heathrow Airport is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Reagan-National - London Heathrow.

What are the cheapest flights from Maryland to London Heathrow Airport?

While on average a flight from Maryland to London Heathrow Airport is generally £633, our data shows the cheapest flight currently is £263. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay £426 for that flight.

What are the most reliable airlines from Maryland to London Heathrow Airport?

Before booking your flight to London Heathrow Airport from Maryland, check out the most reliable airlines to get you to your destination on time: American Airlines (67%), Aer Lingus (67%), Finnair( 67%).

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

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

How can I find direct flights from Maryland to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Maryland 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.

£197+ Cheap Flights from Maryland to London Heathrow Airport

Cheap flight deals from Maryland to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Maryland to Heathrow
Explore the most affordable flight options available from Maryland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Fri 9/1020:20 -

1 stop12h 15m

Thu 5/1110:20 -

1 stop11h 55m

Deal found 31/7£461

Tue 15/922:35 -

1 stop19h 20m

Mon 5/1006:00 -

1 stop19h 35m

Deal found 31/7£461

Sun 20/917:40 -

1 stop11h 40m

Mon 5/1006:00 -

1 stop14h 10m

Deal found 1/8£463

Wed 23/922:35 -

1 stop14h 10m

Sun 27/916:35 -

1 stop27h 35m

Deal found 31/7£463

Mon 21/922:35 -

1 stop19h 20m

Tue 29/919:50 -

1 stop24h 20m

Deal found 1/8£464

Mon 21/920:20 -

1 stop32h 00m

Thu 24/906:40 -

2 stops15h 20m

Deal found 30/7£465

Sat 17/1017:05 -

1 stop23h 55m

Wed 18/1108:15 -

1 stop17h 20m

Deal found 31/7£467

Mon 2/1117:25 -

1 stop19h 05m

Mon 16/1106:00 -

1 stop14h 15m

Deal found 1/8£468

Thu 26/1117:25 -

1 stop24h 15m

Mon 30/1118:30 -

1 stop25h 15m

Deal found 4/8£469

Mon 21/920:30 -

1 stop10h 25m

Tue 29/913:05 -

1 stop11h 20m

Deal found 1/8£480

Mon 21/920:30 -

1 stop10h 25m

Wed 30/921:25 -

1 stop27h 00m

Deal found 1/8£481

Sun 1/1119:40 -

1 stop10h 10m

Sun 8/1112:15 -

1 stop11h 25m

Deal found 31/7£485

Best flights from Maryland to Heathrow
Discover carefully curated flight deals from Maryland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 August 2026.

Wed 4/1119:40 -

1 stop18h 50m

Wed 18/1112:15 -

1 stop11h 25m

Deal found 4/8£514

Thu 17/920:20 -

2 stops15h 40m

Tue 22/919:50 -

2 stops26h 10m

Deal found 1/8£577

Thu 3/1220:10 -

1 stop11h 50m

Sat 5/1212:05 -

Nonstop8h 35m

Deal found 1/8£632

Wed 14/1021:30 -

Nonstop7h 20m

Fri 23/1016:25 -

Nonstop8h 15m

Deal found 3/8£654

Fri 2/1008:55 -

1 stop16h 35m

Tue 6/1008:40 -

1 stop16h 17m

Deal found 31/7£664

Tue 6/1022:05 -

Nonstop7h 35m

Sun 11/1008:40 -

1 stop11h 55m

Deal found 31/7£669

Thu 29/1016:45 -

2 stops13h 45m

Tue 3/1106:30 -

2 stops15h 56m

Deal found 31/7£683

Wed 7/1018:30 -

1 stop11h 45m

Mon 19/1016:25 -

Nonstop8h 15m

Deal found 2/8£695

Wed 7/1018:48 -

3 stops17h 57m

Thu 15/1006:00 -

2 stops21h 43m

Deal found 1/8£738

Mon 14/920:20 -

2 stops17h 30m

Sun 20/906:40 -

2 stops15h 20m

Deal found 1/8£577

Fri 4/1220:10 -

1 stop15h 10m

Sun 6/1212:05 -

Nonstop8h 35m

Deal found 1/8£632

Sat 7/1120:30 -

1 stop17h 00m

Sun 15/1119:50 -

2 stops26h 25m

Deal found 30/7£581

Tue 1/1216:50 -

1 stop9h 05m

Sun 6/1209:20 -

1 stop12h 40m

Deal found 1/8£665

Fri 4/1212:00 -

2 stops13h 50m

Tue 8/1211:45 -

2 stops16h 18m

Deal found 2/8£684

Sat 9/118:55 -

Nonstop7h 10m

Wed 13/113:50 -

Nonstop8h 15m

Deal found 1/8£699

Sun 29/1118:20 -

Nonstop7h 20m

Thu 3/1209:30 -

1 stop11h 25m

Deal found 1/8£641

Wed 4/1120:30 -

2 stops17h 20m

Sun 8/1119:50 -

2 stops26h 25m

Deal found 31/7£584

Wed 20/106:00 -

1 stop9h 52m

Sun 24/109:20 -

1 stop11h 59m

Deal found 1/8£665

Thu 17/906:00 -

1 stop20h 15m

Tue 29/906:30 -

2 stops15h 57m

Deal found 2/8£734

Mon 4/110:00 -

1 stop16h 50m

Mon 11/111:45 -

2 stops16h 10m

Deal found 3/8£687

Thu 24/910:42 -

2 stops21h 03m

Sun 4/1016:35 -

2 stops34h 29m

Deal found 1/8£757

Tue 6/1009:09 -

1 stop16h 36m

Tue 13/1010:50 -

2 stops17h 09m

Deal found 1/8£644

Thu 1/1020:20 -

1 stop17h 10m

Sun 11/1019:50 -

2 stops26h 10m

Deal found 30/7£589

Mon 5/1021:30 -

Nonstop7h 20m

Mon 12/1015:00 -

1 stop12h 17m

Deal found 1/8£726

Sat 28/1106:00 -

1 stop10h 40m

Sat 5/1209:20 -

1 stop12h 40m

Deal found 1/8£666

Tue 6/1022:16 -

3 stops38h 29m

Tue 27/1008:15 -

3 stops42h 21m

Deal found 4/8£806

Sat 3/1015:57 -

3 stops25h 58m

Mon 26/1008:15 -

2 stops29h 24m

Deal found 3/8£768

Sat 19/914:00 -

1 stop11h 30m

Sat 26/908:40 -

1 stop16h 16m

Deal found 4/8£667

Wed 16/912:30 -

2 stops13h 15m

Mon 21/911:30 -

2 stops16h 31m

Deal found 31/7£742

Fri 2/1020:20 -

1 stop12h 15m

Sun 11/1019:50 -

2 stops26h 10m

Deal found 3/8£617

Find flight deals from Maryland to Heathrow

Round-trip from	£461
One-way from	£197
Popular in	June
Cheapest in	January
Average price	£594
Good round-trip deal	£746 or less
Good one-way deal	£400 or less

Scandinavian Airlines
9/10-5/11
2 total stops
24h 10m total
Maryland to London

Search Deals

Icelandair
14/10
1 total stop
10h 25m total
Maryland to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£126 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from Maryland to London Heathrow.

Search Deals

Price to beat on a one-way flight from Maryland to London Heathrow.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 4/11

19:40-19:30

1 stop18h 50m

London Heathrow

Wed 18/11

12:15-18:40

1 stop11h 25m

£514

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 17/9

20:20-17:00

2 stops15h 40m

London Heathrow

Tue 22/9

19:50-17:00

2 stops26h 10m

£577

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 14/9

20:20-18:50

2 stops17h 30m

London Heathrow

Sun 20/9

06:40-17:00

2 stops15h 20m

£577

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 7/11

20:30-18:30

1 stop17h 00m

London Heathrow

Sun 15/11

19:50-17:15

2 stops26h 25m

£581

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 4/11

20:30-18:50

2 stops17h 20m

London Heathrow

Sun 8/11

19:50-17:15

2 stops26h 25m

£584

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 1/10

20:20-18:30

1 stop17h 10m

London Heathrow

Sun 11/10

19:50-17:00

2 stops26h 10m

£589

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 2/10

20:20-13:35

1 stop12h 15m

London Heathrow

Sun 11/10

19:50-17:00

2 stops26h 10m

£617

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 3/12

20:10-13:00

1 stop11h 50m

London Heathrow

Sat 5/12

12:05-15:40

Nonstop8h 35m

£632

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 4/12

20:10-16:20

1 stop15h 10m

London Heathrow

Sun 6/12

12:05-15:40

Nonstop8h 35m

£632

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 29/11

18:20-06:40

Nonstop7h 20m

London Heathrow

Thu 3/12

09:30-15:55

1 stop11h 25m

£641

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Maryland to Heathrow

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

IAD-LHR

DCA-LHR

BWI-LHR

PHL-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 Maryland to London Heathrow Airport

USMD-LHR

IAD-LHR

DCA-LHR

BWI-LHR

PHL-LHR

What is the cheapest month to book a flight from Maryland to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Maryland to London Heathrow Airport (average of £479). Flying from Maryland to London Heathrow Airport in June is currently the most expensive (average of £890). 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 MD to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to London Heathrow Airport as you normally would.

How much does it cost for a return flight from Maryland to London Heathrow Airport?

Airfare is below average for this route at the moment.

Maryland to London Heathrow Airport flights typically cost between £548 and £778 in September.
The cheapest return price found within the last 5 days was £480 on Icelandair (21 Sept–29 Sept).

How far ahead should I book a flight from Maryland to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Maryland to London Heathrow Airport, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Maryland to London Heathrow Airport?
There are many flights that can get you from Maryland to London Heathrow Airport in 15h 40m. Fly via Icelandair, Scandinavian Airlines, or United Airlines to get the fastest option. The distance from Maryland to London Heathrow Airport is about 3664 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 Maryland to London Heathrow Airport?
The most popular route from Maryland to London Heathrow Airport is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Reagan-National - London Heathrow.
What are the most reliable airlines from Maryland to London Heathrow Airport?
Before booking your flight to London Heathrow Airport from Maryland, check out the most reliable airlines to get you to your destination on time: American Airlines (67%), Aer Lingus (67%), Finnair( 67%).
What are the cheapest flights from Maryland to London Heathrow Airport?
While on average a flight from Maryland to London Heathrow Airport is generally £633, our data shows the cheapest flight currently is £263. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay £426 for that flight.
Can I find deals for flights from Maryland to Heathrow that include hotel bookings?
Yes. In addition to deals on Maryland to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Maryland to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to Heathrow.
Can I find deals for business class flights from Maryland to Heathrow?
Yes. Cheapflights offers flight deals from Maryland 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.
What is the cheapest month to book a flight from Maryland to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Maryland to London Heathrow Airport (average of £479). Flying from Maryland to London Heathrow Airport in June is currently the most expensive (average of £890). 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.

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Top 2 airlines flying from Maryland to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£386	Average£599	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£430	Average£579	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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How does Cheapflights help users find flights from Maryland to Heathrow?

When you search for this flight from Maryland to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Maryland to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Maryland to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Maryland to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Maryland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Maryland to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Maryland to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Maryland to London Heathrow Airport from £197

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Maryland to Heathrow

Cheapest flights from Maryland to HeathrowExplore the most affordable flight options available from Maryland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Explore the most affordable flight options available from Maryland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Best flights from Maryland to HeathrowDiscover carefully curated flight deals from Maryland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 August 2026.

Discover carefully curated flight deals from Maryland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 August 2026.

Direct flights from Maryland to HeathrowExplore direct flight options from Maryland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 August 2026.

Explore direct flight options from Maryland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 August 2026.

Last-minute flights from Maryland to HeathrowDiscover last-minute flight deals from Maryland to Heathrow. Data last updated 4 August 2026 and is based on user searches.

Discover last-minute flight deals from Maryland to Heathrow. Data last updated 4 August 2026 and is based on user searches.

One-way flights from Maryland to HeathrowSearch for one-way flight options from Maryland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 August 2026.

Search for one-way flight options from Maryland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 August 2026.

Find flight deals from Maryland to Heathrow

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One-way from

Popular in

Cheapest in

Average price

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Cheapflights Fare Finder

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

Best time to book a flight from Maryland to Heathrow

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

Cheapflights Insights

What is the cheapest month to book a flight from Maryland to London Heathrow Airport?

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

Find hourly flight availability from Maryland to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to London Heathrow Airport as you normally would.

How much does it cost for a return flight from Maryland to London Heathrow Airport?

Airfare is below average for this route at the moment.

Maryland to London Heathrow Airport flights typically cost between £548 and £778 in September.The cheapest return price found within the last 5 days was £480 on Icelandair (21 Sept–29 Sept).

How far ahead should I book a flight from Maryland to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Maryland to London Heathrow Airport, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

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

What are the most popular routes from Maryland to London Heathrow Airport?

What are the most reliable airlines from Maryland to London Heathrow Airport?

What are the cheapest flights from Maryland to London Heathrow Airport?

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

How can I find direct flights from Maryland to Heathrow?

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

What is the cheapest month to book a flight from Maryland to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maryland 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 hire and/or hotel booking to your travel itinerary.

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Search flights from Maryland to Heathrow by cabin class

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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 4 August 2026.

Maryland and Heathrow flights

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Top 2 airlines flying from Maryland to Heathrow

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How does Cheapflights help users find flights from Maryland to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Maryland to Heathrow?

Can Cheapflights find flights from Maryland to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Maryland to Heathrow become cheaper?

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Cheapest flights from Maryland to Heathrow
Explore the most affordable flight options available from Maryland to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Best flights from Maryland to Heathrow
Discover carefully curated flight deals from Maryland to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 August 2026.

Direct flights from Maryland to Heathrow
Explore direct flight options from Maryland to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 August 2026.

Last-minute flights from Maryland to Heathrow
Discover last-minute flight deals from Maryland to Heathrow. Data last updated 4 August 2026 and is based on user searches.

One-way flights from Maryland to Heathrow
Search for one-way flight options from Maryland to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 August 2026.

Maryland to London Heathrow Airport flights typically cost between £548 and £778 in September.
The cheapest return price found within the last 5 days was £480 on Icelandair (21 Sept–29 Sept).