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

SIN — IAD
6 Dec — 13 Dec1
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 2025

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 6 November 2025.

One-way from

S$ 1,183

Return from

S$ 1,563

Popular in

November

Cheapest in

March

Average price (all airlines)

S$ 4,085
United Airlines
  • United Airlines
  • 30-12
  • 1 total stop
  • 34h 10m total
  • Singapore to Washington, D.C.
United Airlines
  • United Airlines
  • 10-3-11-3
  • 3 total stops
  • 54h 11m total
  • Singapore to Washington, D.C.
Highest demand for flights from Singapore Changi to Washington, D.C. Dulles Intl; 23% potential price increase.
Best time to find cheap flights from Singapore Changi to Washington, D.C. Dulles Intl; 11% potential price drop.
Average price for all Singapore Changi to Washington, D.C. Dulles Intl flights (one-way and round-trip).
  • Can I get a flight from Singapore to Washington, D.C. Dulles Intl Airport on United Airlines for under S$ 4,183?

    Cheapflights currently has 8 SIN-IAD flights for under S$ 4,183. 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.

  • How do most travelers feel about United Airlines?

    The general consensus from 9,002 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).

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 6 November 2025.

Mon 17-1110:10SIN - IAD
2 stops38h 39mUnited Airlines
Thu 20-1106:30IAD - SIN
1 stop24h 45mUnited Airlines
Deal found 3-11S$ 1,580
Thu 20-1122:20SIN - IAD
1 stop39h 38mUnited Airlines
Sat 22-1122:35IAD - SIN
2 stops32h 40mUnited Airlines
Deal found 4-11S$ 1,653
Sat 20-1222:20SIN - IAD
2 stops25h 56mUnited Airlines
Sat 27-1218:01IAD - SIN
1 stop24h 59mUnited Airlines
Deal found 5-11S$ 1,801

Travel insights for United Airlines flights from Singapore to Dulles Intl

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

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 6 November 2025.

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 6 November 2025.
United Airlines
7.4
Good
9,002 reviews
Overview

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

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