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

Sunday, December 20th, 2026

5 round-trip options

Returning
Fri, Dec 25, 2026•5 Day Trip
$2,385 USD
Google Flights
Returning
Sat, Dec 26, 2026•6 Day Trip
$2,385 USD
Google Flights
Returning
Sun, Dec 27, 2026•7 Day Trip
$2,219 USD
Google Flights
Returning
Thu, Dec 31, 2026•11 Day Trip
$2,682 USD
Google Flights
Returning
Sun, Jan 3, 2027•14 Day Trip
$3,177 USD
Google Flights