LHR to IAD (London to Washington) Flights

Last Minute Flights from LHR to IAD

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
LHRChantillyAugust 4 to August 18$1,491
*Prices include taxes and fees

Cheapest LHR to IAD Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
LHRChantillyNovember 23 to November 27$599
LHRChantillyNovember 28 to December 2$650
LHRChantillySeptember 25 to October 1$696
LHRChantillyNovember 6 to November 13$772
*Prices include taxes and fees
LHR to IAD Flight Details
Origin airport
Heathrow
Origin airport IATA code
LHR
Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Distance
3666 mi

Frequently asked questions

What airlines fly direct from Heathrow Airport (LHR) to Dulles Intl. Airport?
Say nope to tiring stopovers and fly straight from Heathrow Airport (LHR) to Washington Dulles Intl. Airport (IAD) with United Airlines (UA). This well-known carrier has 60 nonstop flights on this route per month. Also compare the 60 nonstop monthly flights offered by British Airways (BA). No disembarking planes? No stress.
How many flights are there from LHR to IAD?
There are no less than 5 flights every day from London (LHR-Heathrow) to Washington, DC (IAD-Washington Dulles Intl.), so you have plenty of ways to get to Chantilly. Just decide on a time and date that fits with your plans and secure your airfare.
How long does it take to fly from London (LHR-Heathrow) to Washington, DC (IAD-Washington Dulles Intl.)?
Roughly 8 hours and 1 minute. Flying during the day? Secure a seat by a window and stare out at the views below. Alternatively, if you’re jetting from London (LHR-Heathrow) to Washington, DC (IAD-Washington Dulles Intl.) late evening, enjoy forty winks and get to Chantilly feeling refreshed and revitalized.
What is the flight distance from London (LHR-Heathrow) to Washington, DC (IAD-Washington Dulles Intl.)?
From London (LHR-Heathrow) to Washington, DC (IAD-Washington Dulles Intl.), you’ll be flying a distance of 3,700 miles (5,900 1). Choose who you travel with wisely. Entertainment, food and comfort are some of the things any good long-haul carrier should do well.
How many afternoon flights are there from LHR to IAD?
Every week, you can decide between 35 afternoon and evening flights from LHR to IAD.

  • Jet off with British Airways (BA), which has 14 afternoon and evening flights every week on this route. The first departure is 12:35PM.
  • A good alternative is United Airlines (UA). You can jump on one of its 14 weekly afternoon and evening flights that take off for IAD from 12:15PM.

What is the earliest departure time out of Hounslow to Chantilly?
Don’t worry about getting up late — the earliest flight departs from LHR at 12:15PM. 8:20PM is the time of landing at IAD.
What is the latest departure time out of Hounslow to Chantilly?
From LHR, the latest flight you can catch sets out at 5:35PM and comes in for landing at 1:35AM at IAD. If you’re not a big fan of early starts, this flight has your name on it.
What is the average price from Hounslow to Chantilly?
Round-trip flights from LHR to IAD start at around $599. Book your trip today and score a sensational deal. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

London to Washington Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from London to Washington to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from LHR to IAD, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from London to Washington, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.