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

Friday, December 18th, 2026

5 round-trip options

Returning
Wed, Dec 23, 2026•5 Day Trip
$2,514 USD
Google Flights
Returning
Thu, Dec 24, 2026•6 Day Trip
$2,514 USD
Google Flights
Returning
Fri, Dec 25, 2026•7 Day Trip
$2,686 USD
Google Flights
Returning
Tue, Dec 29, 2026•11 Day Trip
$2,686 USD
Google Flights
Returning
Fri, Jan 1, 2027•14 Day Trip
$3,372 USD
Google Flights