What's the cheapest day to fly in April?

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

Is April a good time to visit San Francisco?

Check the real weather data above for San Francisco in April — 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 April fares above already fit your budget, booking removes the risk of the price changing.

Search Washington → San Francisco in April

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Flights from Washington to San Francisco in April

Planning a trip from Washington to San Francisco in April? Find the best flights and seasonal tips. Flight time: 5h 20m.

Flying in April

San Francisco typically sees daytime highs around 17°C and overnight lows around 9°C in April, based on the last 3 years. Expect roughly 24 mm of rain across the month.