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Get United's best fares today on flights from Lisbon to Idaho Falls

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Low fare calendar for flights from Lisbon (LIS) to Idaho Falls (IDA)

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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 Idaho Falls

Wednesday light snow
47°F 10/23/19
Thursday sky is clear
40°F 10/24/19
Friday sky is clear
47°F 10/25/19
Saturday scattered clouds
44°F 10/26/19
Sunday sky is clear
34°F 10/27/19
Monday scattered clouds
36°F 10/28/19
Tuesday few clouds
38°F 10/29/19
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