Icelandair tends to have the best prices on flights from Washington DC to London Gatwick. But, remember that London Gatwick is only one of the airports in London – searching for flights from ‘Washington DC’ to ‘London’ will give you more options, and possibly lower prices.
There are five flights to or via London from Washington DC. The flight normally lasts about 5936 km. We've found that Washington DC Washington Dulles International Airport (IAD) is the most popular airport to fly from, and JetBlue is the most popular airline. But that doesn't mean they'll be the cheapest – it's best to compare all your options.
You could also try searching by month, if you're flexible on dates. This will show you when prices are at their cheapest and their most expensive. Generally speaking, the earlier you book, the better deal you'll get.
Found your flights? Select the ones you want, then go through to the next stage to complete your booking. If you'd like to add car hire or a hotel for your trip to United Kingdom, you can do that too – simply use the tabs at the top of the page.
