$633 Cheap United flights from Washington to Singapore (IAD to SIN)

Find The Best Day To Fly from Washington to Singapore

Amazing United IAD to SIN Flight Deals

The cheapest flights to Changi found within the past 7 days were $1,125 round trip and $633 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Nov 11 - Mon, Nov 17
IAD
Washington
SIN
Singapore
$1,125 Roundtrip, found 12 hours ago
$1,125
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Singapore, returning Mon, Nov 17, priced at $1,125 found 12 hours ago

Frequently asked questions

Can I catch a flight from Washington Dulles Intl. Airport (IAD) to Changi Airport right now?
It's prudent to know about any quarantine requirements and travel advice reports in effect in your destination city. Ensure you check out our Covid-19 Travel Advisor for up-to-date information on booking a flight to Singapore Airport.
What terminal is United Airlines at Dulles Intl. Airport?
Your boarding pass should tell you exactly which terminal your United Airlines flight will be taking off from at Dulles Intl. Airport. It might also be able to provide you with arrival details for Changi Airport (SIN). If not, you might like to consult your airline before you fly.
Are there United Airlines non-stop flights from IAD to SIN?
You won't find any nonstop flights with United Airlines from Washington Dulles Intl. Airport (IAD) to Singapore Airport. You will have at least one stopover, so use the time to stretch out your legs before boarding your connecting flight.
How long is a United Airlines flight from IAD to SIN?
Your United Airlines flight from Dulles Intl. Airport to SIN will take approximately 23 hours and 45 minutes, so consider packing an extra set of clothes and some toiletries for the trip. If you want to keep boredom to a minimum, throw a few books and travel games in your hand luggage too.
How many direct and indirect flights does United Airlines fly from IAD to SIN?
United Airlines is currently operating about 2 flights each day from IAD to SIN.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Singapore Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Washington IAD to Singapore SIN 

To find the best deals on flights to Washington from Singapore with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Washington IAD to Singapore SIN with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $1,125 to $1,125, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Washington IAD to Singapore SIN 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Washington to Singapore costs from $633. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Singapore SIN from  Washington IAD with United 

To find a cheap United flight from Washington IAD to Singapore SIN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Washington IAD to Singapore SIN 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Washington IAD to Singapore SIN with United 

If you’re keen to be on Singapore soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Washington IAD to Singapore SIN 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Singapore SIN from  Washington IAD with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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