Find flights
Flight research
Deals
United Airlines Reviews

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

SIN — IAD
10 Jun — 17 Jun1
1 adult

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 5 June 2025.

One-way from

S$ 1,399

Return from

S$ 1,491

Popular in

May

Cheapest in

March

Average price (all airlines)

S$ 1,704
United Airlines
  • United Airlines
  • 18-6
  • 3 total stops
  • 34h 42m total
  • Singapore to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 20-7-27-7
  • 3 total stops
  • 72h 33m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights from Singapore Changi to Washington, D.C. Dulles Intl; 0% potential price increase.
Search Deals
Best time to find cheap flights from Singapore Changi to Washington, D.C. Dulles Intl; 1% potential price drop.
Search Deals
Average price for all Singapore Changi to Washington, D.C. Dulles Intl flights (one-way and round-trip).
Search Deals

  • Can I get a flight from Singapore to Washington, D.C. Dulles Intl Airport on United Airlines for under S$ 1,400?

    Cheapflights currently has 1 SIN-IAD flights for under S$ 1,400. 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 616 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

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 5 June 2025.

Thu 5-620:40SIN - IAD
2 stops27h 15mUnited Airlines
Sun 8-612:20IAD - SIN
1 stop30h 20mUnited Airlines
Deal found 5-6S$ 1,480

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.

What is the cheapest month to book a flight from Singapore to Washington, D.C. Dulles Intl Airport with United Airlines?

Currently, the most affordable month to book a United Airlines flight from Singapore to Washington, D.C. Dulles Intl Airport in February, with an average price of S$ 1,272. Conversely, traveling with United Airlines from Singapore to Washington, D.C. Dulles Intl Airport in August will be the most expensive, with an average cost of S$ 1,866. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 5 June 2025.
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 5 June 2025.
United Airlines
7.4
Good
8,776 reviews
Check prices
Overview

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights