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$ 250. 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$ 387. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
C$ 385
February
C$ 353
March
C$ 386
April
C$ 378
May
C$ 431
June
C$ 482
July
C$ 532
August
C$ 482
September
C$ 344
October
C$ 372
November
C$ 425
December
C$ 367
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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