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Get United's best fares today on flights from Phoenix to Williston

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Low fare calendar for flights from Phoenix (PHX) to Williston (ISN)

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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 Williston

Monday sky is clear
23°F 01/20/20
Tuesday overcast clouds
28°F 01/21/20
Wednesday overcast clouds
30°F 01/22/20
Thursday overcast clouds
20°F 01/23/20
Friday sky is clear
22°F 01/24/20
Saturday sky is clear
32°F 01/25/20
Sunday broken clouds
33°F 01/26/20
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