What's the cheapest day to fly in May?

We don't have enough real fare data for May to identify a cheapest weekday.

Is May a good time to visit Ottawa?

Check the real weather data above for Ottawa in May — we don't have crowd or event data to add beyond that.

Should I book now or wait?

There's no reliable way to predict whether a specific fare will rise or fall. If the real May fares above already fit your budget, booking removes the risk of the price changing.

Search Washington → Ottawa in May

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Flights from Washington to Ottawa in May

Planning a trip from Washington to Ottawa in May? Find the best flights and seasonal tips. Flight time: 1h 21m.

Flying in May

Ottawa typically sees daytime highs around 20°C and overnight lows around 8°C in May, based on the last 3 years. Expect roughly 94 mm of rain across the month.