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Get United's best fares today on flights from Lisbon to Sidney, MT

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Low fare calendar for flights from Lisbon (LIS) to Sidney, MT (SDY)

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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 Sidney, MT

Wednesday light snow
37°F 10/23/19
Thursday light snow
40°F 10/24/19
Friday scattered clouds
52°F 10/25/19
Saturday broken clouds
41°F 10/26/19
Sunday light snow
29°F 10/27/19
Monday overcast clouds
26°F 10/28/19
Tuesday snow
24°F 10/29/19
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