Washington (IAD) → London (LHR)
About Washington to London Flights
Discover the best flights from Washington to London, covering 5,902 km in approximately 7h 53m. Washington (IAD) to London (LHR) is one of the major long-haul routes connecting United States and United Kingdom. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Washington to London.
12-Month Price History
Flight prices from Washington to London vary significantly throughout the year. February typically offers the best deals with average prices around $1145, while July sees the highest prices, averaging $1929. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
119 days
For best prices
Booking Tips
For the best prices on Washington to London flights, we recommend booking 89 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
American Airlines AA | $1660 | $6520 | $10160 |
Air France AF | $1670 | $6500 | $10020 |
Lufthansa LH | $1750 | $6780 | $12330 |
United Airlines UA | $1830 | $6400 | $7990 |
Delta Air Lines DL | $1930 | $5960 | $10770 |
British Airways BA | $2030 | $7210 | $11660 |
Emirates EK | $2140 | $7790 | $11510 |
American Airlines
AA
Economy
$1660
Business
$6520
First
$10160
Air France
AF
Economy
$1670
Business
$6500
First
$10020
Lufthansa
LH
Economy
$1750
Business
$6780
First
$12330
United Airlines
UA
Economy
$1830
Business
$6400
First
$7990
Delta Air Lines
DL
Economy
$1930
Business
$5960
First
$10770
British Airways
BA
Economy
$2030
Business
$7210
First
$11660
Emirates
EK
Economy
$2140
Business
$7790
First
$11510
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Washington → London
Ronald Reagan Washington National (DCA) to Heathrow (LHR)
Distance: 5,882 km
Average price: $1277
Washington → London
Washington Dulles International (IAD) to Gatwick (LGW)
Distance: 5,931 km
Average price: $1287
Washington → Birmingham
Washington Dulles International (IAD) to Birmingham (BHX)
Distance: 5,784 km
Average price: $1258
Washington → Birmingham
Washington Dulles International (IAD) to Birmingham (BHX)
Distance: 5,784 km
Average price: $1258
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Frequently Asked Questions
How long is the flight from Washington to London?
The flight time from Washington (IAD) to London (LHR) is approximately 7 hours and 53 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Washington and London?
The aerial distance between Washington and London is 5,902 kilometers (3,667 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Washington to London?
Several airlines operate flights between Washington and London, including United Airlines, British Airways, American Airlines and 4 more airlines. Direct flights are available on this route.
What is the cheapest month to fly from Washington to London?
Based on historical data, February typically offers the lowest airfares for flights from Washington to London. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to London?
For the best prices on Washington to London flights, we recommend booking 87 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Washington to London?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to United Kingdom should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Washington and London?
Washington operates on America/New_York time zone, while London is in the Europe/London time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.