S$407 Cheap Flights from Washington to London
Popular airlines from Washington Dulles Intl. Airport (IAD) to Heathrow Airport (LHR)
British AirwaysBritish Airways
FinnairFinnair
TAP PortugalTAP Portugal
Austrian AirlinesAustrian Airlines
Aer LingusAer Lingus
LufthansaLufthansa
IberiaIberia
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Cheap Flights from Washington to London (IAD-LHR)
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Flights from Washington to London
When looking for plane tickets from Washington to London, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to London. Look for IAD to LHR airfare with the assurance that you have the largest online travel agency working for you.
Expedia lets you search across the largest number of airlines and London flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Washington London flight!
Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Washington to London trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.
Combine your London flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Washington to London with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!
Frequently Asked Questions
How much is a flight from Washington Dulles Intl. Airport (IAD) to Heathrow Airport (LHR)?
Start packing your suitcase, because round-trip journeys from IAD to London Heathrow start from S$800. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Heathrow Airport?
We understand that things come up unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to Heathrow Airport (LHR) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IAD to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Dulles Intl. Airport to LHR?
You'll have 5,900 kilometres to cover on the long-haul Chantilly to Hounslow route. Dress in layers of comfortable clothes and consider taking a sleep mask and earplugs.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Heathrow Airport?
With 60 flights a month from Dulles Intl. Airport to LHR, United Airlines (UA) is an excellent choice. Another carrier operating on this route is British Airways (BA). You'll have 60 flights every month to choose from.
Are IAD to LHR flight tickets cheaper when they're purchased at the last minute?
Booking your trip from IAD to London Heathrow at the last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.
Travel information
Origin airport | Washington Dulles Intl. Airport |
|---|---|
Destination airport | Heathrow Airport |
Distance | 5,901 km away |
Airlines serving | British Airways, Finnair, TAP Portugal, Austrian Airlines, Aer Lingus, Lufthansa, Iberia, Swiss International Air Lines, Air Canada, Brussels Airlines, SAS, Alaska Airlines, Icelandair, Virgin Atlantic, KLM, United, Turkish Airlines, American Airlines, Delta, Air France, ITA Airways, Royal Air Maroc, Aeromexico, Avianca |
Popular airline | British Airways |
Return price | S$800 |
Average flight time | 7 hours 26 mins |