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

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Low fare calendar for flights from Washington (IAD) to Ottawa (YOW)

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*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 Ottawa

Friday light snow
23°F 12/06/19
Saturday few clouds
21°F 12/07/19
Sunday light snow
25°F 12/08/19
Monday heavy intensity rain
37°F 12/09/19
Tuesday light rain
44°F 12/10/19
Wednesday light snow
18°F 12/11/19
Thursday sky is clear
15°F 12/12/19
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