Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 712
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 26-2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
3 Jan — 10 Jan1
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 October, booked 87 days in advance, depart on a Monday or Tuesday and return on a Friday
Cheap 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 4 December 2025.
Sat 6-1215:25IAD - SIN
1 stop27h 35mUnited Airlines
Sat 20-1210:10SIN - IAD
1 stop27h 57mUnited Airlines
Deal found 2-12S$ 1,586
Wed 24-1222:10IAD - SIN
2 stops33h 05mUnited Airlines
Mon 29-1210:10SIN - IAD
2 stops38h 14mUnited Airlines
Deal found 1-12S$ 1,731
Fri 5-1213:10IAD - SIN
2 stops28h 45mMultiple Airlines
Mon 8-1219:40SIN - IAD
2 stops36h 40mMultiple Airlines
Deal found 3-12S$ 1,767
Wed 24-1222:10IAD - SIN
2 stops33h 05mUnited Airlines
Sun 28-1222:20SIN - IAD
2 stops26h 25mUnited Airlines
Deal found 1-12S$ 1,796
Sun 7-1215:25IAD - SIN
1 stop27h 35mUnited Airlines
Sat 13-1222:20SIN - IAD
1 stop22h 10mUnited Airlines
Deal found 2-12S$ 1,819
Wed 10-1218:00IAD - SIN
1 stop25h 00mUnited Airlines
Thu 18-1210:10SIN - IAD
2 stops24h 11mUnited Airlines
Deal found 2-12S$ 1,850
Sat 6-1217:30IAD - SIN
3 stops33h 05mMultiple Airlines
Mon 8-1220:15SIN - IAD
2 stops35h 15mMultiple Airlines
Deal found 3-12S$ 1,890
Thu 11-1208:30IAD - SIN
2 stops34h 30mUnited Airlines
Fri 19-1210:10SIN - IAD
2 stops26h 13mUnited Airlines
Deal found 2-12S$ 1,915
Wed 10-1209:45IAD - SIN
2 stops26h 10mAir Canada
Thu 18-1208:50SIN - IAD
2 stops25h 09mAir Canada
Deal found 2-12S$ 1,952
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 4 December 2025.
Sat 7-317:25IAD - SIN
2 stops46h 35mDelta
Tue 7-407:30SIN - IAD
2 stops28h 19mDelta
Deal found 2-12S$ 1,544
Thu 26-315:35IAD - SIN
1 stop30h 00mMultiple Airlines
Sun 5-417:00SIN - IAD
2 stops28h 45mMultiple Airlines
Deal found 3-12S$ 1,569
Sun 25-120:05IAD - SIN
2 stops31h 35mQatar Airways
Wed 28-103:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 1-12S$ 1,634
Fri 20-210:00IAD - SIN
1 stop39h 50mEthiopian Air
Tue 17-302:00SIN - IAD
2 stops30h 05mEthiopian Air
Deal found 3-12S$ 1,692
Sat 24-110:30IAD - SIN
2 stops36h 00mEmirates
Fri 27-212:30SIN - IAD
2 stops32h 40mEmirates
Deal found 3-12S$ 1,754
Fri 2-122:15IAD - SIN
2 stops33h 00mUnited Airlines
Sat 17-110:10SIN - IAD
2 stops26h 12mUnited Airlines
Deal found 2-12S$ 1,860
Sat 30-522:05IAD - SIN
2 stops43h 10mAir Canada
Tue 9-607:00SIN - IAD
1 stop35h 25mAir Canada
Deal found 3-12S$ 1,911
Sat 30-522:35IAD - SIN
2 stops44h 25mMultiple Airlines
Tue 9-609:45SIN - IAD
3 stops36h 00mMultiple Airlines
Deal found 3-12S$ 1,814
Wed 24-1208:45IAD - SIN
2 stops34h 15mUnited Airlines
Mon 29-1222:20SIN - IAD
2 stops26h 25mUnited Airlines
Deal found 3-12S$ 1,974
Tue 30-1222:33IAD - SIN
2 stops32h 42mUnited Airlines
Wed 7-122:20SIN - IAD
2 stops31h 02mUnited Airlines
Deal found 2-12S$ 2,000
Last-minute flights from Dulles Intl to Singapore
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated 4 December 2025 and is based on user searches.
Wed 10-1220:05IAD - SIN
1 stop29h 50mQatar Airways
Wed 17-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 2-12S$ 1,834
Wed 10-1218:00IAD - SIN
1 stop25h 00mUnited Airlines
Thu 18-1210:10SIN - IAD
2 stops24h 11mUnited Airlines
Deal found 2-12S$ 1,850
Wed 10-1209:45IAD - SIN
2 stops26h 10mAir Canada
Thu 18-1208:50SIN - IAD
2 stops25h 09mAir Canada
Deal found 2-12S$ 1,952
Wed 10-1217:05IAD - SIN
3 stops32h 55mMultiple Airlines
Thu 18-1223:00SIN - IAD
2 stops34h 26mMultiple Airlines
Deal found 2-12S$ 2,091
Thu 11-1208:30IAD - SIN
2 stops34h 30mUnited Airlines
Fri 19-1210:10SIN - IAD
2 stops26h 13mUnited Airlines
Deal found 2-12S$ 1,915
Fri 12-1206:30IAD - SIN
1 stop24h 45mUnited Airlines
Sat 20-1222:20SIN - IAD
2 stops31h 04mUnited Airlines
Deal found 3-12S$ 1,979
Sun 14-1220:05IAD - SIN
1 stop23h 40mQatar Airways
Fri 26-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 3-12S$ 2,058
Sun 14-1209:45IAD - SIN
2 stops32h 15mAir Canada
Sat 27-1208:50SIN - IAD
2 stops25h 09mAir Canada
Deal found 3-12S$ 2,429
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 4 December 2025.
Thu 26-214:35IAD - SIN
2 stops27h 05mMultiple Airlines
Deal found 3-12S$ 712
Fri 16-121:15IAD - SIN
2 stops48h 00mIndiGo
Deal found 2-12S$ 716
Sat 17-105:30IAD - SIN
3 stops48h 50mMultiple Airlines
Deal found 3-12S$ 717
Sat 17-113:30IAD - SIN
1 stop39h 05mTurkish Airlines
Deal found 3-12S$ 763
Mon 11-522:05IAD - SIN
2 stops43h 10mAir Canada
Deal found 2-12S$ 797
Tue 9-1206:30IAD - SIN
1 stop24h 45mUnited Airlines
Deal found 3-12S$ 819
Sat 30-522:35IAD - SIN
2 stops44h 25mTAP AIR PORTUGAL
Deal found 3-12S$ 878
Sun 4-105:35IAD - SIN
3 stops41h 45mMultiple Airlines
Deal found 3-12S$ 883
Sat 3-119:11IAD - SIN
3 stops57h 49mMultiple Airlines
Deal found 2-12S$ 948
Find 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 4 December 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 4 December 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
Sat 7-3
17:25-05:00
2 stops46h 35m
Singapore Changi
Tue 7-4
07:30-23:49
2 stops28h 19m
S$ 1,544
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 26-3
15:35-09:35
1 stop30h 00m
Singapore Changi
Sun 5-4
17:00-09:45
2 stops28h 45m
S$ 1,569
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sun 25-1
20:05-16:40
2 stops31h 35m
Singapore Changi
Wed 28-1
03:15-15:55
1 stop25h 40m
S$ 1,634
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 20-2
10:00-14:50
1 stop39h 50m
Singapore Changi
Tue 17-3
02:00-20:05
2 stops30h 05m
S$ 1,692
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 24-1
10:30-11:30
2 stops36h 00m
Singapore Changi
Fri 27-2
12:30-08:10
2 stops32h 40m
S$ 1,754
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 30-5
22:35-07:00
2 stops44h 25m
Singapore Changi
Tue 9-6
09:45-09:45
3 stops36h 00m
S$ 1,814
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 2-1
22:15-20:15
2 stops33h 00m
Singapore Changi
Sat 17-1
10:10-23:22
2 stops26h 12m
S$ 1,860
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 30-5
22:05-05:15
2 stops43h 10m
Singapore Changi
Tue 9-6
07:00-06:25
1 stop35h 25m
S$ 1,911
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 24-12
08:45-08:00
2 stops34h 15m
Singapore Changi
Mon 29-12
22:20-11:45
2 stops26h 25m
S$ 1,974
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Tue 30-12
22:33-20:15
2 stops32h 42m
Singapore Changi
Wed 7-1
22:20-16:22
2 stops31h 02m
S$ 2,000
Flights are sorted by cheapest return flights first.
Deals found on 3-12
Showing 1-10 of 19 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 28 November 2025.
Booking 87 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$ 1,058). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,481). 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 cheapest stopover airport for flights from Washington, D.C. Dulles Intl Airport to Singapore?
Average return fare for one-stop flights from Washington, D.C. Dulles Intl Airport to Singapore, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Istanbul (IST) is the most affordable one-stop option, with an average return flight price of S$ 2,171.
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 4 December 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Singapore, such as Qatar Airways and JetBlue. 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 2 different airlines.
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 31h 35m. Fly via Delta, Qatar Airways, or Ethiopian Air 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 are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?
Qatar Airways, at S$ 1,372, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore. An alternate airline flying to your destination would be JetBlue. 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$ 1,058). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,481). 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 4 December 2025.
Top 2 airlines flying from Dulles Intl to Singapore
Discover the top 2 airlines 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 4 December 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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