What's the cheapest day to fly in August?

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

Is August a good time to visit Philadelphia?

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

Search Seattle → Philadelphia in August

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Flights from Seattle to Philadelphia in August

Planning a trip from Seattle to Philadelphia in August? Find the best flights and seasonal tips. Flight time: 5h 15m.

Flying in August

Philadelphia typically sees daytime highs around 29°C and overnight lows around 19°C in August, based on the last 3 years. Expect roughly 106 mm of rain across the month.