Cheap Flight Tickets from London (LHR) to Washington (IAD), Starting at $1548

Good to Know: Cheapest and Fastest LHR - IAD Flights

Useful information for finding best airline tickets from London Heathrow to Washington Dulles International on your next trip.

Cheapest One way Flight

$1548

AV Avianca • 2 stops • 58h 35m

Aug 10

The cheapest one way flight from London to Washington (LHR-IAD) is currently $1548

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Fastest Flight

13h 20m

The fastest nonstop flight from London to Washington (LHR-IAD) takes 13h 20m

Top Airlines Flying from London to Washington

Turkish Airlines - TK

Turkish Airlines

Delta Airline, DL

Delta Airlines

Virgin Atlantic (VS)

Virgin Atlantic

TAP Air Portugal Airline (TP)

TAP - Air Portugal

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Avianca Airline - AV

Avianca

Latest Flight Deals from London (LHR) to Washington (IAD)

Fly from London to Washington with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from London to Washington? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on London to Washington Flights

What are the airports in London?
LHR
What’s the most popular airline flying from LHR to IAD?
The most popular airline flying from London to Washington are
Can I fly from LHR to IAD non-stop?
Yes, you can fly LHR to IAD non-stop on
Which airlines fly nonstop between London and Washington?
The non-stop flights between London and Washington are .
What’s the earliest departure time from LHR to IAD Airport?
The earliest flight leaves LHR at 6:20 am and lands in IAD - Washington Dulles International
What are the airports in Washington?
IAD,BWI,DCA
Can I make changes to my London to Washington flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from LHR to IAD?
Read the fare rules of the London to Washington air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from London and Washington?
operate flights between London and Washington
How long does a flight from London to Washington take?
It takes approximately 8 hour to fly non-stop from LHR to IAD, which is 3676.74 miles by air.
Which airlines provide the cheapest flights from London (LHR) to Washington (IAD) ?
In the past couple of days, the cheapest tickets to IAD from LHR were found on EI : USD 2185
Do I need a passport to fly between LHR and IAD?
Yes
What’s the latest departure time from LHR to IAD ?
The last flight leaves LHR at 10:05 pm

Essential Information for Booking Flights from London (LHR) - AI Insights

What's the cheapest airline from lhr to iad?
You can find affordable flights from London Heathrow (LHR) to Washington Dulles International Airport (IAD) on Delta Airlines. For a business class ticket, you can expect to pay around $800-$1,000 per person for a one-way trip with two stops.
What's the popular airline to fly from lhr to iad?
Delta Airlines offers a convenient Business class option for flights from London Heathrow to Washington Dulles International. With two stops, passengers can enjoy priority check-in, lounge access, and flatbed seats. Booking in advance is recommended, as this airline often provides low fares for advance bookings made within 2 days of travel.
What's the cheapest day of the week to fly from lhr to iad?
The cheapest day to fly from London Heathrow (LHR) to Washington Dulles International (IAD) is Sunday. Flying on Sundays can result in lower fares compared to other days of the week, making it a budget-friendly option for your business class flight.
What's the cheapest month to fly from lhr to iad?
The cheapest month to fly from London Heathrow (LHR) to Washington Dulles International (IAD) is October. This is based on historical data, which suggests that October tends to have lower airfares compared to other months.
Which airline/airlines fly from lhr to iad?
Several airlines operate flights from London Heathrow to Washington Dulles International Airport. Some of these include British Airways, United Airlines, American Airlines, Delta Air Lines, and Virgin Atlantic. These airlines offer a range of flight schedules and classes, including Business class with premium services.
What is the cheapest airfare from London Heathrow to Washington Dulles International for a one-way trip?
The cheapest airfare from London Heathrow to Washington Dulles International for a one-way trip with Delta Airlines (DL) is available on Sundays in October, starting from £200.
How many advance booking days do I need to book my flight with premium service?
You need to book your flight with priority lounge and flatbed seats at least 2 days in advance.
Can I find flights with priority lounge and flatbed seats on this route?
Yes, you can find flights with priority lounge and flatbed seats on this route with Delta Airlines (DL).
Is it possible to get fares for a weekend getaway from London Heathrow to Washington Dulles International?
No, weekend getaways are not available on this route.
What is the web-based booking process like for airfare comparison on fareleaders.com?
The web-based booking process on fareleaders.com allows you to compare airfares from multiple airlines and find the best deals.
How do I use airline-specific search filters to find my desired flight?
You can use airline-specific search filters on fareleaders.com to find your desired flight by selecting the preferred airline, such as Delta Airlines (DL).
Can I book flights with airlines that offer awesome travel experiences?
Yes, you can book flights with airlines that offer awesome travel experiences, such as Delta Airlines (DL), on fareleaders.com.

London (LHR) to Washington (IAD): Airport Information

Origin Airport London Heathrow , London, GB
Destination Airport Washington Dulles International , Washington, US
Distance 3677 miles

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