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United Airlines flights from Singapore to Washington, D.C. Dulles Intl Airport (SIN - IAD)

SIN — IAD
1 Oct — 8 Oct1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Singapore to Dulles Intl

Tue 1-920:35 -
2 stops26h 51m
Sun 6-922:10 -
1 stop32h 25m
Deal found 31-8S$ 1,634
Mon 21-920:35 -
2 stops26h 51m
Tue 29-917:48 -
1 stop24h 27m
Deal found 1-9S$ 1,637
Fri 11-920:35 -
2 stops26h 51m
Mon 14-918:35 -
1 stop23h 40m
Deal found 28-8S$ 1,639

United Airlines flights from Singapore to Dulles Intl in 2026

One-way from

S$ 3,955

Return from

S$ 1,634

Popular in

November

Cheapest in

January

Average price (all airlines)

S$ 1,828
United Airlines
  • United Airlines
  • 2-12
  • 3 total stops
  • 27h 20m total
  • Singapore to Washington, D.C.
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United Airlines
  • United Airlines
  • 28-9-5-10
  • 3 total stops
  • 61h 47m total
  • Singapore to Washington, D.C.
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Highest demand for flights from Singapore Changi to Washington, D.C. Dulles Intl; 28% potential price increase.
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Best time to find cheap flights from Singapore Changi to Washington, D.C. Dulles Intl; 17% potential price drop.
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Average price for all Singapore Changi to Washington, D.C. Dulles Intl flights (one-way and round-trip).
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Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Best time to book a flight from Singapore to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Singapore with our price prediction graph.
Estimated return price

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Fly from Singapore to Dulles Intl on another airline

Qatar Airways flights from Singapore Changi to Washington, D.C. Dulles Intl

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Entertainment

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Food

6.7

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