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London to Washington Flight Deals

London

LHR

02/10/2025

plane

Washington

IAD

Starting From £289.00

London

LHR

02/10/2025

plane

Washington

IAD

09/10/2025

Starting From £400.00
*All fares are quoted in GBP.

The fares listed above are for flight tickets, inclusive of fuel surcharges, service fees, and taxes, as of 23 Sep 25. Please note that these fares are subject to change without prior notice based on historical data and cannot be guaranteed at the time of booking. We recommend reviewing our terms and conditions before making a reservation.

Why Choose Us

  • Save up to 40% on domestic flights
  • Top airlines: Delta, American, Frontier
  • Flexible booking options

Our Services

  • 24/7 customer support
  • Secure & easy payments
  • Exclusive travel deals

🛫 LON → IAD Flight Info

  • Flight Duration: ~8h 20m nonstop
  • Airports in London: Heathrow (LHR), Gatwick (LGW)
  • Arrival: Washington Dulles International Airport (IAD)
  • Airlines: British Airways, Virgin Atlantic, United Airlines, American Airlines

📅 Pro Tips to Get the Best Fares

  • 📆 Book 6–8 weeks in advance for best prices
  • 📉 Fly midweek (Tue/Wed) to save more
  • 💺 Consider 1-stop flights for cheaper alternatives
  • 🔔 Sign up for fare alerts to catch discounts

🏛 Why Visit Washington D.C.?

  • 🗽 Explore the U.S. Capitol, White House & Lincoln Memorial
  • 🎨 Free Smithsonian museums & National Gallery of Art
  • 🌸 Cherry Blossom Festival along the Tidal Basin
  • 🍴 Diverse food scene from food trucks to fine dining

🕓 Best Time to Fly

  • ✈️ Cheapest Months: January–March & late October
  • ☀️ Peak Travel: April (cherry blossoms) & June–August (summer tourism)
  • 🎉 Events: Book early for Independence Day, Presidential Inauguration & National Cherry Blossom Festival

💬 Need Support?

Our travel experts are available 24/7 to help you find, book, or manage your London to Washington flights with ease.

Frequently Asked Questions

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Whats best for Globalflightcatchers.co.uk

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How quickly can i book flights from Globalflightcatchers.co.uk

GlobalFlightCatchers is the flights booking expert and we have created an easy to use interface that will allow you to book flights from New York City easily and speedily. You just need to give the information that is required to book flight tickets and we will list for you the flights that are available. You can compare the flight details and choose one that is right for you. Then you will need to go through the online booking formalities

Where will i find cheapest Air Tickets for Flying from London to Washington Dulles.

We know that most people will have a budget when they have any plans to book flights to Miami. For you, we always list the cheapest flights at the top, with other details. This will allow you to easily separate cheap flights from expensive ones

What makes Globalflightcatchers.co.uk different from other booking sites?

Far from automated booking platforms, Globalflightcatchers.co.uk provides personalised, human-led service through our team of experienced travel agents. We unite 15+ years of expertise, exclusive UK-market deals, and comprehensive ATOL protection to give you confidence and convenience every step of the way. Whether you book online or over the phone, we’re here to help before, during, and after your trip