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Get United's best fares today on flights from Porto to Boise

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Low fare calendar for flights from Porto (OPO) to Boise (BOI)

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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 Boise

Tuesday light rain
41°F 01/21/20
Wednesday snow
32°F 01/22/20
Thursday light rain
35°F 01/23/20
Friday light rain
34°F 01/24/20
Saturday heavy intensity rain
36°F 01/25/20
Sunday heavy intensity rain
38°F 01/26/20
Monday snow
33°F 01/27/20
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