United flights to Washington from London

United flights from London to Washington (LHR→IAD)

Prices were available within the past 7 days and starts at £488 for one-way flights and £503 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
Flight from London to Washington route information
Origin AirportHeathrow
Destination AirportWashington Dulles Intl.
Airlines ServingAer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, SAS, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular AirlineUnited
Distance5866 km

❓ Travel advisory due to Coronavirus (COVID-19) with flights booked

✔️ Many airlines cover travel to highly impacted areas and policies may vary for changes to your booked flight. Dates and destinations change frequently as more is learned about the situation, so it’s important for travellers to check with the air carriers for the most up-to-date information. Please visit our Customer Service Portal to learn more about what policies are available for your flight to Washington from London.

❓ How much is a flight ticket from London (LHR) - Sterling (IAD) with United?

✔️ Prices were available within the past 7 days and start at £488 for one-way flights and £503 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.

❓ In which month can I find the cheapest flight ticket for London (LHR) to Sterling (IAD) with United?

✔️ The airfares published on Expedia.co.uk over the past 7 days saw the lowest prices for one-way departures in October and for return departures in March.

❓ How can I find cheap United tickets from London LHR to Sterling IAD?

✔️ Use the interactive calendar available on Expedia to see the cheapest United (London LHR - Sterling IAD) ticket prices during the weeks surrounding your travel dates. Compare flight prices for similar timeframes and adjust departure and return dates to get the cheapest fare possible. The lowest-priced days are highlighted in green. While it’s impossible to guarantee when to find the lowest prices, our data currently suggests that March seems to be the cheapest month to take return trips and October seems to have the lowest one-way prices. Plane tickets for flight routes with one or more stops can sometimes be cheaper.

❓ When is the best time to buy flights from London to Sterling?

✔️ Three weeks out can be the best time to book flights with various airlines on diverse routes according to ARC & Expedia Group historical data. The data also suggests that if book on a Sunday, you could possibly save up to 20% on fares*.

❓ What is the cheapest day to fly from LHR to IAD?

✔️ ARC & Expedia Group historical data suggests that travellers can save on diverse routes when starting their journey on a Thursday for international flights and on a Saturday for domestic flights*. The cheapest day of the week to fly changes based on seasonal demand and route popularity. We recommend using the ‘Show flexible dates’ feature at the top of your search.

❓ Can I change or cancel my United flight from London to Sterling?

✔️ Airlines have different policies and fees for changes or cancellations. It’s important to review the ‘rules + restrictions’ section in your itinerary. We recommend filtering for ‘No change fees’ to see flexible plane tickets. Some airlines charge steep fees, while others are more flexible. Basic Economy or Light Fare tickets are generally non-refundable, but most airlines allow free cancellations or changes within 24 hours after booking. Find out more about changing or cancelling your flight reservation by navigating to ‘My Trips’ and selecting ‘Change My Flight'. * Data specialists from both ARC and Expedia Group analysed ARC’s global flight data to distill actionable information to help people save money on travel. While it’s impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends. Best day of the week to book and travel recommendation is based on average return ticket prices for January to early October, for both 2019 and 2020, sourced from ARC’s global airline sales database..