Booking with British Airways 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a British Airways flight from London Heathrow Airport to Washington, D.C. in February, with an average price of £404. Conversely, traveling with British Airways from London Heathrow Airport to Washington, D.C. in July will be the most expensive, with an average cost of £530. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
The most British Airways flights from LHR to WAS are scheduled on a Monday (2 on average). You will have fewer British Airways flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).
In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.
If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).
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