Find Portland to Singapore flights from USD 1,071*
Explore Portland to Singapore routes with Singapore Airlines
- Washington, D.C. - Singapore
- Miami - Singapore
- Atlanta - Singapore
- Austin - Singapore
- Dallas - Singapore
- Houston - Singapore
- Chicago - Singapore
- Boston - Singapore
- New York (Newark) - Singapore
- New York - Singapore
- Phoenix - Singapore
- Los Angeles - Singapore
- San Diego - Singapore
- San Francisco - Singapore
- Seattle - Singapore