LHR to IAD (London to Washington) Flights

Last Minute Flights from LHR to IAD

Best airfare and ticket deals for LHR to IAD flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
LHRChantillyApril 19 to April 24$722
*Prices include taxes and fees

Cheapest LHR to IAD Flights

Best airfare and ticket deals for LHR to IAD flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
LHRChantillySeptember 13 to September 28$629
LHRChantillyApril 23 to April 29$637
LHRChantillyMay 15 to November 6$682
LHRChantillyApril 24 to April 29$719
*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

Which airlines with flights from London Heathrow to Washington, DC Airport (IAD-Washington Dulles Intl.) allow free cancellation due to COVID-19?
For a list of airlines offering flexible COVID-19 related changes, simply use our convenient filter tool. Get started by typing in your preferred flight details. Then, once the available flights have appeared, check the “No change fee” box under “Flexible change policies” on the left. Read over the air carrier’s cancellation policies before booking your London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.) ticket.
What airlines fly direct from London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.)?
If you’re eager to get your escape started fast, go with United Airlines (UA). It offers 60 nonstop services from London Heathrow to IAD a month. British Airways (BA) will also get you to IAD without any pesky stopovers. Check out the deals on its 60 nonstop monthly flights.
How many flights are there from LHR to IAD?
Around 5 each day. If you’re in a big rush to get to Loudoun County, see if you can grab a fabulous last-minute deal from London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.) and then book it pronto!
How long does it take to fly from London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.)?
Approximately 8 hours and 14 minutes. Got a daytime flight? Reserve a window seat and gaze out at the changing views. Otherwise, if you’re jetting from London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.) when it’s dark, have a snooze and arrive in Loudoun County refreshed and rested.
What is the flight distance from London Airport (LHR-Heathrow) to Washington, DC Airport (IAD-Washington Dulles Intl.)?
Roughly 3700 miles (5900 km) separates London and Loudoun County. You’ll be in your seat for a while on this long-haul flight, so carefully choose where you sit.
How many morning flights are there from LHR to IAD?
There are 7 flights in the morning from LHR to IAD every week. Popular carrier British Airways (BA) operates 7 weekly flights that depart before noon. The first one takes to the skies at 10:15AM.
How many afternoon flights are there from LHR to IAD?
Choose one of the 28 weekly afternoon and evening flights from LHR to IAD and sleep in a little later. Popular carrier United Airlines (UA) operates 14 of these later flights which leave from 11:15AM.
What is the earliest departure time out of London to Loudoun County?
11:15AM is the earliest scheduled flight taking off from LHR, landing at IAD at 7:15PM. Save precious minutes in the morning by having your bags packed and ready to be bundled into your ride.
What is the latest departure time out of London to Loudoun County?
Book a seat on the 5:00PM flight from LHR, arriving at 1:15AM at IAD, and give yourself time to finish up any last-minute vacation preparations. This is the latest flight you can take on this route.
What is the average price from London to Loudoun County?
You can find a return airfare from LHR to IAD from around $629. The best deals sell out fast, so book as soon as you’ve pinned down your travel dates. 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 Flight Schedule

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 perhaps simply to treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find the cheapest flights from LHR to IAD, we’ve got you covered here at Flights.com.

We present you with some of the hottest 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.