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Get United's best fares today on flights from Singapore to Portland

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Low fare calendar for flights from Singapore (SIN) to Portland (PDX)

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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 Portland

Thursday sky is clear
45°F 11/21/19
Friday broken clouds
43°F 11/22/19
Saturday few clouds
46°F 11/23/19
Sunday moderate rain
48°F 11/24/19
Monday moderate rain
42°F 11/25/19
Tuesday snow
41°F 11/26/19
Wednesday overcast clouds
39°F 11/27/19
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