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Cheap Flights from Singapore Changi (SIN) to Washington Dulles (IAD)

Your route at a glance

Cheapest deal£588
Cheapest monthMarch
Most popular airlineSingapore Airlines

Compare Singapore Changi to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Singapore Changi to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Singapore Changi to Washington Dulles? Find the lowest prices on one-way and return tickets right here.
Washington D.C..£588 per passenger.Departing Mon, 2 Mar, returning Tue, 10 Mar.Return flight with Air China.Outbound indirect flight with Air China, departs from Singapore Changi on Mon, 2 Mar, arriving in Washington Dulles.Inbound indirect flight with Air China, departs from Washington Dulles on Tue, 10 Mar, arriving in Singapore Changi.Price includes taxes and charges.From £588, select.
Washington D.C..£696 per passenger.Departing Tue, 17 Mar, returning Sat, 4 Apr.Return flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Singapore Changi on Tue, 17 Mar, arriving in Washington Dulles.Inbound indirect flight with Etihad Airways, departs from Washington Dulles on Sat, 4 Apr, arriving in Singapore Changi.Price includes taxes and charges.From £696, select.
Washington D.C..£720 per passenger.Departing Fri, 23 Jan, returning Thu, 5 Feb.Return flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Singapore Changi on Fri, 23 Jan, arriving in Washington Dulles.Inbound indirect flight with Etihad Airways, departs from Washington Dulles on Thu, 5 Feb, arriving in Singapore Changi.Price includes taxes and charges.From £720, select.
Washington D.C..£725 per passenger.Departing Sat, 27 Dec, returning Mon, 12 Jan.Return flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Singapore Changi on Sat, 27 Dec, arriving in Washington Dulles.Inbound indirect flight with Etihad Airways, departs from Washington Dulles on Mon, 12 Jan, arriving in Singapore Changi.Price includes taxes and charges.From £725, select.
Washington D.C..£733 per passenger.Departing Fri, 1 May, returning Sat, 2 May.Return flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Singapore Changi on Fri, 1 May, arriving in Washington Dulles.Inbound indirect flight with Etihad Airways, departs from Washington Dulles on Sat, 2 May, arriving in Singapore Changi.Price includes taxes and charges.From £733, select.
Washington D.C..£765 per passenger.Departing Sat, 21 Feb, returning Fri, 6 Mar.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Singapore Changi on Sat, 21 Feb, arriving in Washington Dulles.Inbound indirect flight with Turkish Airlines, departs from Washington Dulles on Fri, 6 Mar, arriving in Singapore Changi.Price includes taxes and charges.From £765, select.
Washington D.C..£765 per passenger.Departing Sat, 7 Feb, returning Mon, 23 Feb.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Singapore Changi on Sat, 7 Feb, arriving in Washington Dulles.Inbound indirect flight with Turkish Airlines, departs from Washington Dulles on Mon, 23 Feb, arriving in Singapore Changi.Price includes taxes and charges.From £765, select.
Washington D.C..£781 per passenger.Departing Fri, 23 Jan, returning Sat, 31 Jan.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Singapore Changi on Fri, 23 Jan, arriving in Washington Dulles.Inbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sat, 31 Jan, arriving in Singapore Changi.Price includes taxes and charges.From £781, select.

Find the cheapest month to fly from Singapore Changi to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Singapore Changi to Washington Dulles flights are currently cheapest in March.
Dec
from £1,071
Jan
from £781
Feb
from £765
Mar
from £588
Apr
Find prices
May
from £733
Jun
Find prices
Jul
from £1,118
Aug
Find prices
Sep
from £1,052
Oct
from £789
Nov
Find prices

Singapore Changi to Washington Dulles: Alternative routes

Compare routes from Singapore Changi to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Finding cheap flights from Singapore Changi to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Singapore Changi to Washington Dulles is £588. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Singapore Changi to Washington Dulles. But we found flights with one or more stops from £588.
As of December 2025, there are no flights flying from Singapore Changi to Washington Dulles.
The cheapest month to fly from Singapore Changi to Washington Dulles is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Singapore Changi Airport to Washington Dulles Airport on Monday, 2 March 2026.
No airlines currently offer direct flights between Singapore Changi Airport and Washington Dulles Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air China offers the cheapest flight tickets to Washington Dulles.

Flying from Changi International Airport (SIN) to Washington Dulles International Airport (IAD): what you need to know

  • The timezone in Washington DC is UTC-4, which is 12 hours behind Singapore.

  • Give yourself plenty of time to catch your SIN to IAD flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like April, it's a good idea to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you travel during peak periods in general.

  • If you'd like to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Changi International Airport to Washington Dulles International Airport. Here are the top stopovers between SIN and IAD:

    • Haneda Airport

    • Incheon International Airport

    • San Francisco International Airport

How to find the cheapest flights from Changi International Airport (SIN) to Washington Dulles International Airport (IAD)

  • Right now, £331 is the cheapest price we've seen for a one-way Changi International Airport to Washington Dulles International Airport flight. The best price for a return ticket is £588. Remember that fares may change due to availability at the time of booking.

  • Don't wait until the last minute. You're more likely to find cheap tickets from SIN to IAD if you book in advance. Airlines often have some excellent early bird deals.

  • If you can be flexible with your travel dates, try using the 'Whole month' search tool. It'll give you the lowest price across every month when searching for a flight from Changi International Airport to Washington Dulles International Airport.

  • Getting your hands on cheap flights from SIN to IAD is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know as soon as a new deal comes up.

  • Choose your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Changi International Airport to Washington Dulles International Airport.

Handy information about Changi International Airport (SIN)

  • When it comes to Changi International Airport's on-time performance, data shows 68.95% of flights complete their journey on time.

  • To reach Changi International Airport from central Singapore, it'll take about 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 13 miles from the airport to the city centre.

  • Expect a trip time of about 1 hour when using public transport.

  • Searching for a convenient hotel near SIN? If you've booked an early flight from Changi International Airport to Washington Dulles International Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • You'll find IAD at 1 Saarinen Circle.

  • Washington Dulles International Airport is approximately 35 miles from central Washington DC. The drive time takes about 50 minutes.

  • When travelling on public transport, expect a journey of about 3 hours 25 minutes.

When to fly to Washington Dulles International Airport (IAD)

  • It's time to plan your dates for your flight from Changi International Airport to Washington Dulles International Airport. April is the most popular month to head to Washington DC. If you want a more laid-back vibe, go in January.

  • Book your flight from Changi International Airport to Washington Dulles International Airport for July if you'd like to go to Washington DC during its warmest month. Expect temperatures of between 19ºC (66ºF) and 33ºC (91ºF).

  • Look for cheap tickets from SIN to IAD in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

Explore more of United States

  • New York is just one of the many cities in United States waiting to be explored once you've seen Washington DC. Around 200 miles away to the north-east, its top attractions include Statue of Liberty, Central Park and Empire State Building.

  • If there's time to check out another corner of United States, consider Philadelphia, roughly 120 miles north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are key reasons to visit.

Plan the rest of your trip from Singapore to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.