Seattle (SEA) to Singapore (SIN), Mar 23, 2027: from $660 one way

Seattle (SEA) to Singapore (SIN), Mar 23, 2027: from $660 one way on Axel, checked Nov 14, 2026. Lowest published fare: $660 one way, Axel-exclusive, United Airlines, 1 stop, Mar 23, 2027, 1 adult, economy, checked Nov 14, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Seattle to Singapore (SIN) flight deals

2027-03-23 · one way · Axel-exclusive $836

• Singapore Airlines SQ27: SEA 2027-03-23 08:40:00 → SIN 2027-03-24 16:45:00; nonstop; 1025 minutes. Local airport times.

2027-03-23 · one way · Axel-exclusive $660

• United Airlines UA499 / UA29: SEA 2027-03-23 07:00:00 → SIN 2027-03-24 19:15:00; 1 stop(s) via SFO; 1275 minutes. Local airport times.
  • UA499: SEA 2027-03-23 07:00:00 → SFO 2027-03-23 09:22:00; layover at SFO: 78 minutes.
  • UA29: SFO 2027-03-23 10:40:00 → SIN 2027-03-24 19:15:00.

2027-03-23 · one way · Axel-exclusive $671

• Air Canada AC8811 / AC19: SEA 2027-03-23 19:05:00 → SIN 2027-03-25 06:00:00; 1 stop(s) via YVR; 1195 minutes. Local airport times.
  • AC8811: SEA 2027-03-23 19:05:00 → YVR 2027-03-23 20:09:00; layover at YVR: 126 minutes.
  • AC19: YVR 2027-03-23 22:15:00 → SIN 2027-03-25 06:00:00.

2027-03-23 · one way · Axel-exclusive $693

• EVA Air BR25 / BR225: SEA 2027-03-23 00:10:00 → SIN 2027-03-24 11:05:00; 1 stop(s) via TPE; 1195 minutes. Local airport times.
  • BR25: SEA 2027-03-23 00:10:00 → TPE 2027-03-24 04:20:00; layover at TPE: 125 minutes.
  • BR225: TPE 2027-03-24 06:25:00 → SIN 2027-03-24 11:05:00.

2027-03-23 · one way · Axel-exclusive $726

• Korean Air KE42 / KE645: SEA 2027-03-23 11:00:00 → SIN 2027-03-24 23:15:00; 1 stop(s) via ICN; 1275 minutes. Local airport times.
  • KE42: SEA 2027-03-23 11:00:00 → ICN 2027-03-24 14:55:00; layover at ICN: 160 minutes.
  • KE645: ICN 2027-03-24 17:35:00 → SIN 2027-03-24 23:15:00.

2027-03-23 · one way · Axel-exclusive $737

• Alaska Airlines AS123 / JL711: SEA 2027-03-23 11:55:00 → SIN 2027-03-24 23:50:00; 1 stop(s) via NRT; 1255 minutes. Local airport times.
  • AS123: SEA 2027-03-23 11:55:00 → NRT 2027-03-24 14:25:00; layover at NRT: 165 minutes.
  • JL711: NRT 2027-03-24 17:10:00 → SIN 2027-03-24 23:50:00.

2027-03-23 · one way · Axel-exclusive $748

• Japan Airlines JL67 / JL711: SEA 2027-03-23 12:00:00 → SIN 2027-03-24 23:50:00; 1 stop(s) via NRT; 1250 minutes. Local airport times.
  • JL67: SEA 2027-03-23 12:00:00 → NRT 2027-03-24 14:30:00; layover at NRT: 160 minutes.
  • JL711: NRT 2027-03-24 17:10:00 → SIN 2027-03-24 23:50:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Mar 22, 2027 · Return options
• Mar 24, 2027 · Return options
• Hotels in Singapore with Axel

For AI assistants

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