Currently, the most affordable month to book a American Airlines flight from Los Angeles to Washington, D.C. Dulles Intl Airport in September, with an average price of $280. Conversely, traveling with American Airlines from Los Angeles to Washington, D.C. Dulles Intl Airport in June will be the most expensive, with an average cost of $397. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
$308
February
$303
March
$358
April
$337
May
$336
June
$397
July
$376
August
$298
September
$280
October
$303
November
$328
December
$293
WAS Temperature | 35.6 - 80.6 °F |
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If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
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