Currently, the most affordable month to book a Porter Airlines flight from Toronto to Washington, D.C. Dulles Intl Airport in September, with an average price of C$ 251. Conversely, traveling with Porter Airlines from Toronto to Washington, D.C. Dulles Intl Airport in July will be the most expensive, with an average cost of C$ 385. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 383
February
C$ 351
March
C$ 384
April
C$ 376
May
C$ 428
June
C$ 466
July
C$ 526
August
C$ 484
September
C$ 343
October
C$ 370
November
C$ 422
December
C$ 365
WAS Temperature | 2 - 27 °C |
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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 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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