Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 575
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6-12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
30 Nov — 7 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or March, booked 25 days in advance, depart on a Monday or Tuesday and return on a Friday
Find flight deals from Dulles Intl to Singapore
Enter your travel dates to find the best prices.
Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.
Fri 7-1113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Sat 15-1105:15SIN - IAD
1 stop43h 30mTurkish Airlines
Deal found 30-10S$ 1,457
Thu 30-1012:35IAD - SIN
1 stop30h 25mUnited Airlines
Tue 11-1110:45SIN - IAD
1 stop41h 55mUnited Airlines
Deal found 29-10S$ 1,460
Wed 29-1015:59IAD - SIN
2 stops27h 01mUnited Airlines
Thu 6-1110:10SIN - IAD
1 stop24h 15mUnited Airlines
Deal found 29-10S$ 1,461
Wed 12-1113:30IAD - SIN
2 stops38h 50mMultiple Airlines
Tue 18-1100:25SIN - IAD
2 stops33h 01mMultiple Airlines
Deal found 29-10S$ 1,469
Fri 7-1110:40IAD - SIN
1 stop21h 35mMultiple Airlines
Wed 12-1121:15SIN - IAD
2 stops31h 15mMultiple Airlines
Deal found 29-10S$ 1,473
Fri 28-1113:30IAD - SIN
1 stop30h 15mMultiple Airlines
Fri 5-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 29-10S$ 1,485
Sat 6-1213:30IAD - SIN
1 stop31h 30mMultiple Airlines
Wed 10-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 30-10S$ 1,487
Tue 11-1120:05IAD - SIN
2 stops33h 30mQatar Airways
Mon 17-1103:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 30-10S$ 1,490
Mon 1-1220:05IAD - SIN
1 stop23h 40mQatar Airways
Wed 17-1217:25SIN - IAD
2 stops35h 30mQatar Airways
Deal found 29-10S$ 1,495
Wed 12-1110:40IAD - SIN
2 stops38h 40mQatar Airways
Mon 17-1103:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 29-10S$ 1,500
Best flights from Dulles Intl to Singapore
Discover carefully curated flight deals from Dulles Intl to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2025.
Thu 5-216:10IAD - SIN
1 stop26h 50mUnited Airlines
Tue 10-210:10SIN - IAD
2 stops26h 08mUnited Airlines
Deal found 30-10S$ 1,467
Sat 28-214:35IAD - SIN
3 stops32h 50mMultiple Airlines
Sat 7-310:30SIN - IAD
3 stops35h 35mMultiple Airlines
Deal found 30-10S$ 1,486
Mon 1-1220:05IAD - SIN
1 stop23h 40mQatar Airways
Wed 17-1217:25SIN - IAD
2 stops35h 30mQatar Airways
Deal found 29-10S$ 1,495
Tue 11-1107:43IAD - SIN
2 stops28h 07mAlaska Airlines
Tue 18-1108:15SIN - IAD
2 stops35h 08mAlaska Airlines
Deal found 28-10S$ 1,537
Wed 14-109:00IAD - SIN
2 stops46h 25mDelta
Wed 21-101:35SIN - IAD
2 stops34h 35mDelta
Deal found 29-10S$ 1,674
Mon 8-1206:30IAD - SIN
1 stop24h 45mUnited Airlines
Sat 13-1222:20SIN - IAD
2 stops31h 10mUnited Airlines
Deal found 30-10S$ 1,532
Mon 23-220:05IAD - SIN
1 stop29h 50mQatar Airways
Sat 14-303:15SIN - IAD
2 stops31h 00mQatar Airways
Deal found 29-10S$ 1,616
Wed 22-407:00IAD - SIN
2 stops34h 00mDelta
Wed 29-401:10SIN - IAD
2 stops29h 35mDelta
Deal found 31-10S$ 1,674
Sat 24-118:04IAD - SIN
2 stops30h 01mMultiple Airlines
Sat 31-102:00SIN - IAD
2 stops51h 26mMultiple Airlines
Deal found 29-10S$ 1,699
Thu 26-307:00IAD - SIN
2 stops34h 00mDelta
Sat 4-401:10SIN - IAD
2 stops25h 41mDelta
Deal found 30-10S$ 1,739
Thu 13-1115:25IAD - SIN
1 stop27h 35mMultiple Airlines
Mon 1-1222:20SIN - IAD
1 stop30h 20mMultiple Airlines
Deal found 29-10S$ 1,741
Last-minute flights from Dulles Intl to Singapore
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated 31 October 2025 and is based on user searches.
Thu 6-1106:30IAD - SIN
1 stop24h 45mUnited Airlines
Fri 14-1110:10SIN - IAD
1 stop27h 46mUnited Airlines
Deal found 29-10S$ 1,526
Thu 6-1118:10IAD - SIN
3 stops33h 30mMultiple Airlines
Fri 14-1116:35SIN - IAD
3 stops35h 55mMultiple Airlines
Deal found 29-10S$ 1,576
Fri 7-1113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Sat 15-1105:15SIN - IAD
1 stop43h 30mTurkish Airlines
Deal found 30-10S$ 1,457
Fri 7-1110:40IAD - SIN
1 stop21h 35mMultiple Airlines
Wed 12-1121:15SIN - IAD
2 stops31h 15mMultiple Airlines
Deal found 29-10S$ 1,473
Fri 7-1110:40IAD - SIN
1 stop21h 35mMultiple Airlines
Sat 15-1122:30SIN - IAD
2 stops30h 00mMultiple Airlines
Deal found 30-10S$ 1,544
Fri 7-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Thu 13-1106:00SIN - IAD
2 stops39h 20mQatar Airways
Deal found 29-10S$ 1,551
Sat 8-1118:10IAD - SIN
1 stop32h 20mSAUDIA
Fri 14-1102:30SIN - IAD
1 stop25h 15mSAUDIA
Deal found 30-10S$ 1,565
Sun 9-1118:10IAD - SIN
2 stops38h 45mSAUDIA
Sat 15-1109:35SIN - IAD
2 stops42h 10mSAUDIA
Deal found 30-10S$ 1,643
One-way flights from Dulles Intl to Singapore
Search for one-way flight options from Dulles Intl to Singapore. Find affordable one-way fares based on user searches. Data last updated 31 October 2025.
Sat 6-1205:45IAD - SIN
3 stops51h 10mMultiple Airlines
Deal found 30-10S$ 575
Sat 8-1118:10IAD - SIN
2 stops34h 10mMultiple Airlines
Deal found 29-10S$ 596
Thu 13-1118:10IAD - SIN
2 stops34h 10mMultiple Airlines
Deal found 29-10S$ 603
Wed 11-314:30IAD - SIN
2 stops38h 50mIndiGo
Deal found 30-10S$ 605
Sun 30-1121:15IAD - SIN
2 stops48h 00mIndiGo
Deal found 30-10S$ 609
Sat 8-1121:15IAD - SIN
2 stops31h 05mIndiGo
Deal found 30-10S$ 611
Tue 2-1213:30IAD - SIN
2 stops38h 50mIndiGo
Deal found 29-10S$ 616
Thu 5-214:35IAD - SIN
1 stop30h 00mEtihad Airways
Deal found 30-10S$ 627
Sun 8-315:35IAD - SIN
3 stops30h 45mMultiple Airlines
Deal found 30-10S$ 629
Tue 10-315:35IAD - SIN
3 stops30h 45mMultiple Airlines
Deal found 30-10S$ 630
Sat 29-1121:15IAD - SIN
2 stops48h 00mIndiGo
Deal found 29-10S$ 631
Cheap flight deals from Dulles Intl to Singapore
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 October 2025.
Customise your flight search to find flights from Dulles Intl to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.
Fly from
Dulles Intl
Fly to
Singapore
Route
Depart
Return
Price
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 5-2
16:10-08:00
1 stop26h 50m
Singapore Changi
Tue 10-2
10:10-23:18
2 stops26h 08m
S$ 1,467
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 28-2
14:35-12:25
3 stops32h 50m
Singapore Changi
Sat 7-3
10:30-09:05
3 stops35h 35m
S$ 1,486
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 1-12
20:05-08:45
1 stop23h 40m
Singapore Changi
Wed 17-12
17:25-15:55
2 stops35h 30m
S$ 1,495
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 8-12
06:30-20:15
1 stop24h 45m
Singapore Changi
Sat 13-12
22:20-16:30
2 stops31h 10m
S$ 1,532
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Tue 11-11
07:43-00:50
2 stops28h 07m
Singapore Changi
Tue 18-11
08:15-06:23
2 stops35h 08m
S$ 1,537
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 23-2
20:05-14:55
1 stop29h 50m
Singapore Changi
Sat 14-3
03:15-22:15
2 stops31h 00m
S$ 1,616
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 14-1
09:00-20:25
2 stops46h 25m
Singapore Changi
Wed 21-1
01:35-23:10
2 stops34h 35m
S$ 1,674
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 22-4
07:00-05:00
2 stops34h 00m
Singapore Changi
Wed 29-4
01:10-18:45
2 stops29h 35m
S$ 1,674
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 24-1
18:04-13:05
2 stops30h 01m
Singapore Changi
Sat 31-1
02:00-16:26
2 stops51h 26m
S$ 1,699
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 26-3
07:00-05:00
2 stops34h 00m
Singapore Changi
Sat 4-4
01:10-14:51
2 stops25h 41m
S$ 1,739
Flights are sorted by cheapest return flights first.
Deals found on 29-10
Showing 1-10 of 23 results
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Best time to book a flight from Dulles Intl to Singapore
Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl 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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Singapore
Prices
More
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Use this chart to determine the optimal time to book a return flight from Dulles Intl to Singapore. Price data was last updated on 24 October 2025.
Booking 25 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,021). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,487). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What’s the top stopover airport for flights from Washington, D.C. Dulles Intl Airport to Singapore?
Share of one-stop return flights from Washington, D.C. Dulles Intl Airport to Singapore chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Doha (DOH) – chosen by Cheapflights users on 75% of one-stop itineraries from Washington, D.C. Dulles Intl Airport to Singapore on Cheapflights.
What’s the fastest stopover option from Washington, D.C. Dulles Intl Airport to Singapore?
Shortest average travel time for one-stop one-way flights from Washington, D.C. Dulles Intl Airport to Singapore, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Doha (DOH) have the shortest average one-way travel time for one-stop routes: 21h 35m.
What’s the fastest stopover option from Washington, D.C. Dulles Intl Airport to Singapore?
Shortest average travel time for one-stop one-way flights from Washington, D.C. Dulles Intl Airport to Singapore, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Doha (DOH) have the shortest average one-way travel time for one-stop routes: 21h 35m.
Which airport typically offers the quickest stopover for flights from Washington, D.C. Dulles Intl Airport to Singapore?
Average stopover duration for one-stop one-way flights from Washington, D.C. Dulles Intl Airport to Singapore, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Istanbul (IST) offer the fastest connection on this route, with an average stopover time of 2h 10m.
Reviews of airlines servicing Singapore
Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 31 October 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Singapore, such as Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Too crammed for the amount you have to pay. That was very uncomfortable
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Singapore from Washington, D.C. Dulles Intl?
Located just 16.9 km from the city centre, Singapore Changi is the airport most travellers will use when flying to Singapore from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Changi (SIN) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.
How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Singapore in 23h 40m. Fly via United Airlines, Qatar Airways, or Alaska Airlines to get the fastest option. There are 15521 km between Washington, D.C. Dulles Intl Airport and Singapore. This flight may include one or multiple stops.
What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Singapore round-trip?
Qatar Airways, at S$ 1,377, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.. Qatar Airways is priced at 12% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for business class flights from Dulles Intl to Singapore?
Yes. Cheapflights offers flight deals from Dulles Intl to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,021). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,487). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 October 2025.
Discover the top airline that operate flights from Dulles Intl to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 31 October 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dulles Intl to Singapore?
Cheapflights makes it easy to find Dulles Intl to Singapore flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Singapore?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dulles Intl to Singapore for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Dulles Intl to Singapore with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Dulles Intl to Singapore flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Dulles Intl to Singapore become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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