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

SIN — IAD
6 Mar — 13 Mar1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Singapore to Washington, D.C. on United Airlines typically fly into Washington, D.C. Dulles Intl and depart from Singapore Changi. Select your dates above for pricing.

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 4 February 2026.

One-way from

S$ 1,468

Return from

S$ 1,457

Popular in

November

Cheapest in

January

Average price (all airlines)

S$ 1,564
United Airlines
  • United Airlines
  • 26-7
  • 1 total stop
  • 28h 32m total
  • Singapore to Washington, D.C.
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United Airlines
  • United Airlines
  • 7-4-21-4
  • 3 total stops
  • 57h 23m total
  • Singapore to Washington, D.C.
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Highest demand for flights from Singapore Changi to Washington, D.C. Dulles Intl; 26% potential price increase.
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Best time to find cheap flights from Singapore Changi to Washington, D.C. Dulles Intl; 14% 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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  • How do most travelers feel about United Airlines?

    The general consensus from 9,236 Cheapflights users is that United Airlines is a 7.4/10. Select your travel dates above for updated prices on flights from Singapore to Washington, D.C. Dulles Intl Airport (SIN-IAD).

  • Can I get a flight from Singapore to Washington, D.C. Dulles Intl Airport on United Airlines for under S$ 1,651?

    Cheapflights currently has 1 SIN-IAD flights for under S$ 1,651. Flights to Washington, D.C. Dulles Intl Airport will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

Find United Airlines flight deals from Singapore to Dulles Intl

Enter your travel dates to find the best prices.

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 4 February 2026.

Thu 5-310:10
SIN
-
IAD
1 stop27h 53m
United Airlines
Thu 12-308:30
IAD
-
SIN
2 stops34h 30m
United Airlines
Deal found 3-2S$ 1,501
Wed 4-322:20
SIN
-
IAD
2 stops26h 11m
United Airlines
Wed 11-306:15
IAD
-
SIN
1 stop26h 00m
United Airlines
Deal found 4-2S$ 1,575
Fri 20-310:10
SIN
-
IAD
2 stops25h 09m
United Airlines
Fri 27-322:10
IAD
-
SIN
1 stop32h 25m
United Airlines
Deal found 3-2S$ 1,712

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 4 February 2026.
Emirates 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 4 February 2026.
United Airlines
7.4
Good
9,236 reviews
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Overview

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

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