London (LHR) → Washington (IAD)
About London to Washington Flights
Discover the best flights from London to Washington, covering 5,902 km in approximately 7h 53m. London (LHR) to Washington (IAD) is one of the major long-haul routes connecting United Kingdom and United States. 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 London to Washington.
12-Month Price History
Flight prices from London to Washington vary significantly throughout the year. February typically offers the best deals with average prices around $1146, while July sees the highest prices, averaging $1947. 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
156 days
For best prices
Booking Tips
For the best prices on London to Washington flights, we recommend booking 118 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 |
|---|---|---|---|
United Airlines UA | $1480 | $6440 | $8650 |
Air France AF | $1730 | $6720 | $9700 |
Delta Air Lines DL | $1740 | $6980 | $8650 |
American Airlines AA | $1750 | $5760 | $10160 |
British Airways BA | $1790 | $5700 | $10950 |
Lufthansa LH | $2120 | $7590 | $11830 |
Emirates EK | $2220 | $7800 | $14610 |
United Airlines
UA
Economy
$1480
Business
$6440
First
$8650
Air France
AF
Economy
$1730
Business
$6720
First
$9700
Delta Air Lines
DL
Economy
$1740
Business
$6980
First
$8650
American Airlines
AA
Economy
$1750
Business
$5760
First
$10160
British Airways
BA
Economy
$1790
Business
$5700
First
$10950
Lufthansa
LH
Economy
$2120
Business
$7590
First
$11830
Emirates
EK
Economy
$2220
Business
$7800
First
$14610
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
London → Washington
Gatwick (LGW) to Washington Dulles International (IAD)
Distance: 5,931 km
Average price: $1287
Birmingham → Washington
Birmingham (BHX) to Washington Dulles International (IAD)
Distance: 5,784 km
Average price: $1258
Birmingham → Washington
Birmingham (BHX) to Washington Dulles International (IAD)
Distance: 5,784 km
Average price: $1258
Bristol → Washington
Bristol (BRS) to Washington Dulles International (IAD)
Distance: 5,755 km
Average price: $1252
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Frequently Asked Questions
How long is the flight from London to Washington?
The flight time from London (LHR) to Washington (IAD) 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 London and Washington?
The aerial distance between London and Washington is 5,902 kilometers (3,667 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from London to Washington?
Several airlines operate flights between London and Washington, 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 London to Washington?
Based on historical data, February typically offers the lowest airfares for flights from London to Washington. 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 Washington?
For the best prices on London to Washington flights, we recommend booking 163 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from London to Washington?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United Kingdom traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between London and Washington?
London operates on Europe/London time zone, while Washington is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.