£230 Cheap Flights from Washington (IAD) to London (LGW)

You can find cheap one-way flights from £230 and cheap return flights £476 IAD to LGW with Expedia. One-way flights typically cost between £330 and £5891. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to LGW ticket fares go up or down.

If you're looking for the cheapest time to fly from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick), August is typically your best bet. You can expect average return fares around £453 during this month. August often sees lower prices because it's just after the peak summer travel season, when demand starts to cool down. Other budget-friendly months to consider for this route include March and July.

Enter IAD to LGW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Icelandair is one of the cheapest airlines offering connecting return flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick), with tickets starting from around £384 for flights that can be booked for departure within the next year. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The cheapest months to fly from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) are typically August and March, with average return flights around £453. February is a popular month for travel on this route, meaning you'll find plenty of flight options. While there isn't a single month that is both the cheapest and most popular, you can consider August or March for better value, or February if having a wide selection of flights is your priority.

There are approximately 48 connecting flights per day from Washington Dulles Intl. (IAD) to Gatwick (LGW). Some common connection points include Charlotte-Douglas Intl. (CLT), Humberto Delgado (LIS), and Adolfo Suarez Madrid-Barajas (MAD).

The earliest flight from Washington Dulles Intl. (IAD) to Gatwick (LGW) typically departs around 6:00 AM local time. This service is operated by Delta and Air France, but it's a seasonal service active only in May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) on a Friday, with around 48 flights available. This gives you a good selection of options for your journey. Major airlines on this route include United, Delta, and Air France. Flight options are fairly consistent throughout the week, with Fridays offering only slightly more flights than other days.

The most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) are in the late afternoon, from 3pm to 6pm. Many major carriers, including United, Iberia and TAP Portugal, offer flights during this window. Many travellers prefer this time as it allows for a full day of activities before heading to the airport, and you'll arrive in London in the morning, ready to start your day.

There are no nonstop flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick). For flights with one stop, you can expect the journey to take around 13 hours 18 minutes. Flights with two or more stops typically take longer, averaging about 19 hours 30 minutes. The distance covered on this route is approximately 5,932 kilometers. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and wind patterns.

Yes, you can fly business class or first class between Washington Dulles Intl. (IAD) and London Gatwick (LGW).

Airlines that offer business class service on this route include:

• Swiss International Air Lines
• TAP Portugal
• Air France
• Iberia
• Lufthansa
• Turkish Airlines
• Royal Air Maroc
• Air Canada
• Icelandair
• United

First class cabins are available on Swiss International Air Lines and Lufthansa.

It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to London from Washington Dulles Intl. (IAD), you can fly directly into Gatwick (LGW). Some flights may connect through major hubs like Charlotte-Douglas Intl. (CLT), Frankfurt Intl. (FRA), or Humberto Delgado (LIS) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Washington, DC (IAD-Washington Dulles Intl.) to London (LGW-Gatwick) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.