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Get United's best fares today on flights from Boston to Philadelphia

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Low fare calendar for flights from Boston (BOS) to Philadelphia (PHL)

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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 Philadelphia

Thursday scattered clouds
44°F 11/21/19
Friday light rain
53°F 11/22/19
Saturday moderate rain
41°F 11/23/19
Sunday moderate rain
48°F 11/24/19
Monday sky is clear
41°F 11/25/19
Tuesday few clouds
47°F 11/26/19
Wednesday light rain
52°F 11/27/19
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