£378 Cheap Flights from Singapore (SIN) to Washington (IAD)

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Compare flights from Singapore to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Singapore to Washington. Operating between them flights per day, 8 airlines cover the route. And fly direct, getting you to Washington Dulles Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Changi to Washington Dulles Intl..

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.

Grab a great deal on your flight from Changi (SIN) to Washington Dulles Intl. (IAD)

The easiest way to view the best deals on flights from Singapore to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Changi to Washington Dulles Intl. start at just £989 and range up to £1,102.

To find an even better deal, try

• being flexible on your dates – midweek flights can be cheaper
• looking for other airports near Singapore and Washington
• booking your flight during December, the cheapest month on this route
• varying your flight times – early morning and late at night are sometimes cheaper

Why you should book your Singapore to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Changi to Washington Dulles Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.

Frequently Asked Questions

How much does a flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) cost?

You can find one-way and return flights from SIN to IAD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SIN to IAD ticket fares go up or down.

What is the cheapest month to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

The cheapest months to fly from SIN to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Which airlines fly direct from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

Enter SIN to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

What is the cheapest airline that flies from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

Starlux Airlines is one of the cheapest airlines offering connecting return flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.), with prices starting from around £1078 for flights that can be booked for departure within the next year. These flights typically include a layover in Taoyuan Intl. (TPE). Prices are per adult in economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

How do I find cheap flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

To find a cheap flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

What is the best time to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

How many flights per day from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

There are approximately 75 connecting flights per day from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.). Some common connection points include Incheon Intl. (ICN), San Francisco Intl. (SFO), and Kuala Lumpur Intl. (KUL).

What is the earliest flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

The earliest flight from Singapore Changi (SIN) to Washington Dulles International (IAD) typically departs around 12:05 AM local time. This service is offered by airlines such as Swiss International Air Lines, Helvetic Airways, and United. This is a seasonal service, active in January, February, October, and November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

What day of the week has the most flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

You'll typically find the most flights from Singapore Changi (SIN) to Washington Dulles Intl. (IAD) on a Monday, with around 48 flights available. This gives you a good selection of options for your journey. Major airlines on this route include Qatar Airways, Emirates, and Korean Air.

What are the most popular departure times for flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

The most popular departure times for flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) are in the late evening, from 9pm to midnight. Many major carriers, including Lufthansa, Emirates and United, offer flights during this window. Many travellers prefer this timing because it allows you to maximise your day in Singapore before your flight, and you'll arrive in Washington, DC, ready to start your day.

How long does it take to fly from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

There are no nonstop flights from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.). The distance between these two airports is approximately 15,532 kilometers. Flights with one stop typically take around 24 hours 30 minutes. If you opt for flights with two or more stops, the journey usually takes about 24 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.

Can you fly business or first class from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

You can fly business class or first class between SIN and IAD. Airlines that offer business class service on this route include:

* Etihad Airways
* Korean Air
* Thai Airways International
* KLM
* Qatar Airways
* Malaysia Airlines
* Swiss International Air Lines
* Lufthansa
* Air France
* Cathay Pacific
* Turkish Airlines
* Air China
* Emirates
* British Airways
* Asiana Airlines
* Air Canada
* Starlux Airlines
* All Nippon Airways
* Air Japan Company
* Malindo Air
* EVA Airways
* Singapore Airlines
* Air India
* Japan Airlines
* Saudi Arabian Airlines

First class cabins are available on:

* Swiss International Air Lines
* Air France
* Emirates
* British Airways
* Singapore Airlines
* Japan Airlines

How do I earn miles on a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?

It's easy to earn miles on a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

What airports do you fly into for Washington, DC (IAD) from Singapore (SIN)?

If you're planning to travel to Washington from Changi (SIN), you can fly directly into Washington Dulles Intl. (IAD) which offers international flights and connections. Some flights may connect through major hubs like San Francisco Intl. (SFO), Taoyuan Intl. (TPE), Zürich (ZRH) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Is it cheaper to buy a plane ticket from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?

Typically, booking a last minute flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Is it cheaper to book a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?

Securing a Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

Can I cancel or change the date of my flight from Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.)?

If you booked your Singapore (SIN-Changi) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.