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

SIN — IAD
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Singapore to Dulles Intl
Explore the most affordable United Airlines flight options available from Singapore to Dulles Intl. Find the lowest fares with prices last updated on 3 July 2026.

Wed 22-708:45
SIN
-
IAD
2 stops34h 38m
United Airlines
Wed 29-717:55
IAD
-
SIN
1 stop24h 20m
United Airlines
Deal found 30-6S$ 1,728
Wed 15-711:05
SIN
-
IAD
1 stop40h 45m
United Airlines
Sat 18-717:25
IAD
-
SIN
2 stops37h 10m
United Airlines
Deal found 30-6S$ 1,762
Wed 22-711:05
SIN
-
IAD
1 stop40h 45m
United Airlines
Sat 15-813:10
IAD
-
SIN
2 stops29h 05m
United Airlines
Deal found 2-7S$ 1,772

United Airlines flights from Singapore to Dulles Intl in 2026

Find detailed information about United Airlines flights from Singapore to Dulles Intl. Explore the options provided by United Airlines to plan your journey from Singapore to Dulles Intl. Data last updated 3 July 2026.

One-way from

S$ 1,832

Return from

S$ 1,623

Popular in

November

Cheapest in

February

Average price (all airlines)

S$ 1,937
United Airlines
  • United Airlines
  • 26-8
  • 3 total stops
  • 36h 27m total
  • Singapore to Washington, D.C.
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United Airlines
  • United Airlines
  • 25-9-27-9
  • 3 total stops
  • 77h 53m total
  • Singapore to Washington, D.C.
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Highest demand for flights from Singapore Changi to Washington, D.C. Dulles Intl; 30% potential price increase.
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Best time to find cheap flights from Singapore Changi to Washington, D.C. Dulles Intl; 16% 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

Plan your trip to Dulles Intl by taking into account the average rainfall totals 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

Plan your trip to Dulles Intl by taking into account the average temperature totals 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
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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Fly from Singapore to Dulles Intl on another airline

Consider alternative airlines that service the Dulles Intl area. Flight routes are based on user searches made on Cheapflights and were last updated on 3 July 2026.
Qatar Airways flights from Singapore Changi to Washington, D.C. Dulles Intl

See what others are saying about United Airlines

Read reviews and see what other travellers are saying about their experiences with United 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 United Airlines for your next flight. Reviews last updated 3 July 2026.
United Airlines
7.4
Good
9,927 reviews
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Overview

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

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