Great Circle Distance between Heathrow and Washington Dulles International Airport is 3,668 miles, with a flight time of approx 7.5 hrs. Washington, D.C.'s IATA airport code is IAD.
Show Washington Dulles International Airport on map.
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Climate:
Washington, D.C. experiences a humid subtropical climate, characterized by four distinct seasons. Summers are typically hot and humid, with average high temperatures ranging from 27°C to 32°C. July tends to be the warmest month. Humidity levels can make the heat feel more intense.
Fall brings milder temperatures and is considered one of the most pleasant times to visit, with temperatures ranging from 10°C to 21°C. The city is adorned with vibrant autumn foliage during this season.
Winters are cool, with average high temperatures ranging from 4°C to 10°C. While snowfall is not excessive, occasional winter storms can bring snow and ice to the region.
Spring sees a gradual warming of temperatures, with average highs ranging from 15°C to 21°C. Cherry blossoms around the Tidal Basin typically bloom in late March to early April, attracting visitors from around the world. Overall, Washington, D.C. offers a varied climate throughout the year, allowing visitors to experience the city's charms in different seasonal contexts.
Routing Options
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When booking with BA, tier points can be earned on the following
Oneworld Alliance ® airlines:
Alaska Airlines,
American Airlines,
British Airways,
Cathay Pacific,
Fiji Airways,
Finnair,
Iberia,
Japan Airlines,
Malaysia Airlines,
Qantas,
Qatar Airways,
Royal Air Maroc,
Royal Jordanian,
SriLankan Airlines
Avios Required (per leg) for BA Redemption Flight from London to Washington DC, (Zone 5, 3,001-4,000 miles)
Cabin | Off Peak Travel | Peak Travel |
Economy | 13,000 | 20,000 |
World Traveller Plus | 26,000 | 40,000 |
Club | 50,000 | 60,000 |
First | 68,000 | 80,000 |
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