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Singapore Airlines flights from Singapore to Seattle (SIN - SEA)

SIN — SEA
9 Jul — 16 Jul1
1 adult

Cheapflights users flying from Singapore to Seattle on Singapore Airlines typically fly into Seattle/Tacoma Intl and depart from Singapore Changi. Select your dates above for pricing.

Singapore Airlines flights from Singapore to Seattle in 2025

Find detailed information about Singapore Airlines flights from Singapore to Seattle. Explore the options provided by Singapore Airlines to plan your journey from Singapore to Seattle. Data last updated 4 July 2025.

One-way from

S$ 1,372

Return from

S$ 1,155

Popular in

August

Cheapest in

February

Average price (all airlines)

S$ 1,335
Singapore Airlines
  • Singapore Airlines
  • 30-12
  • Nonstop
  • 14h 10m total
  • Singapore to Seattle
Singapore Airlines
  • Singapore Airlines
  • 21-11-30-11
  • Nonstop
  • 31h 10m total
  • Singapore to Seattle
Highest demand for flights from Singapore Changi to Seattle/Tacoma Intl; 9% potential price increase.
Best time to find cheap flights from Singapore Changi to Seattle/Tacoma Intl; 2% potential price drop.
Average price for all Singapore Changi to Seattle/Tacoma Intl flights (one-way and round-trip).
  • How do most travelers feel about Singapore Airlines?

    The average rating from 886 Singapore Airlines reviews by Cheapflights users is 8.4 (out of a maximum rating of 10). If you are considering flying SIN-SEA with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Seattle with Singapore Airlines.

Find Singapore Airlines flight deals from Singapore to Seattle

Cheapest Singapore Airlines flights from Singapore to Seattle
Explore the most affordable Singapore Airlines flight options available from Singapore to Seattle. Find the lowest fares with prices last updated on 4 July 2025.

Tue 22-709:00SIN - SEA
Nonstop14h 45mSingapore Airlines
Tue 29-710:15SEA - SIN
Nonstop16h 20mSingapore Airlines
Deal found 2-7S$ 2,401

Travel insights for Singapore Airlines flights from Singapore to Seattle

Get recent, data-driven insights about Singapore Airlines flights from Singapore to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Singapore to Seattle with Singapore Airlines?

Currently, the most affordable month to book a Singapore Airlines flight from Singapore to Seattle in March, with an average price of S$ 966. Conversely, traveling with Singapore Airlines from Singapore to Seattle in June will be the most expensive, with an average cost of S$ 1,309. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Best time to book a flight from Singapore to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Other Singapore Airlines flights from Singapore

Browse through other Singapore Airlines flights departing from Singapore. Flight routes are based on user searches made on Cheapflights and were last updated on 4 July 2025.

See what others are saying about Singapore Airlines

Read reviews and see what other travellers are saying about their experiences with Singapore Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Singapore Airlines for your next flight. Reviews last updated 4 July 2025.
Singapore Airlines
8.1
Very Good
1,320 reviews
Overview

Crew

8.6

Food

7.7

Entertainment

8.0

Comfort

7.9

Boarding

8.2

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