Seattle / Tacoma (SEA) to Singapore (SIN) flight deal in economy from $821

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
SingaporeSIN

Singapore Changi Airport

Singapore, Singapore
$1,187 USD
-31%$821 USD
Verified 14 days ago
Rare Availability
8% of dates checked are available within 10% of the lowest price

Monday, December 14th, 2026

5 round-trip options

Returning
Sat, Dec 19, 2026•5 Day Trip
$2,150 USD
Google Flights
Returning
Sun, Dec 20, 2026•6 Day Trip
$2,146 USD
Google Flights
Returning
Mon, Dec 21, 2026•7 Day Trip
$1,868 USD
Google Flights
Returning
Fri, Dec 25, 2026•11 Day Trip
$2,034 USD
Google Flights
Returning
Mon, Dec 28, 2026•14 Day Trip
$1,862 USD
Google Flights