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Get United's best fares today on flights from Portland to Washington from *

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Low fare calendar for flights from Portland (PWM) to Washington (IAD)

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Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

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Weather in Washington

Saturday light rain
51°F 01/25/20
Sunday few clouds
45°F 01/26/20
Monday few clouds
45°F 01/27/20
Tuesday sky is clear
44°F 01/28/20
Wednesday scattered clouds
40°F 01/29/20
Thursday sky is clear
39°F 01/30/20
Friday overcast clouds
40°F 01/31/20
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