Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 715
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 10-1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
20 Dec — 27 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 October, booked 25 days in advance, depart on a Monday or Tuesday and return on a Friday
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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 20 November 2025.
Wed 3-1208:45IAD - SIN
2 stops27h 10mUnited Airlines
Thu 18-1206:35SIN - IAD
2 stops25h 15mUnited Airlines
Deal found 18-11S$ 1,500
Sun 30-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Sun 7-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 19-11S$ 1,501
Wed 26-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Wed 3-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 18-11S$ 1,509
Wed 3-1213:30IAD - SIN
1 stop30h 15mMultiple Airlines
Thu 11-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 19-11S$ 1,512
Tue 9-1212:20IAD - SIN
1 stop40h 15mANA
Wed 17-1210:45SIN - IAD
1 stop35h 25mANA
Deal found 19-11S$ 1,513
Sat 6-1213:30IAD - SIN
1 stop31h 30mTurkish Airlines
Sun 14-1223:25SIN - IAD
1 stop32h 55mTurkish Airlines
Deal found 19-11S$ 1,521
Thu 27-1114:30IAD - SIN
1 stop28h 30mUnited Airlines
Fri 5-1222:20SIN - IAD
1 stop21h 35mUnited Airlines
Deal found 19-11S$ 1,531
Sun 7-1222:10IAD - SIN
1 stop33h 05mUnited Airlines
Sat 20-1222:20SIN - IAD
1 stop21h 27mUnited Airlines
Deal found 18-11S$ 1,533
Sun 7-1209:45IAD - SIN
2 stops26h 10mAir Canada
Sat 20-1208:50SIN - IAD
2 stops24h 36mAir Canada
Deal found 19-11S$ 1,535
Thu 4-1213:30IAD - SIN
1 stop30h 15mMultiple Airlines
Wed 17-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 18-11S$ 1,536
Thu 4-1216:10IAD - SIN
1 stop26h 50mUnited Airlines
Fri 19-1210:10SIN - IAD
2 stops32h 09mUnited Airlines
Deal found 18-11S$ 1,538
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 20 November 2025.
Sat 4-418:50IAD - SIN
2 stops62h 55mSAUDIA
Sun 12-409:35SIN - IAD
2 stops66h 10mSAUDIA
Deal found 19-11S$ 1,488
Thu 5-214:35IAD - SIN
2 stops31h 55mMultiple Airlines
Fri 13-219:25SIN - IAD
1 stop26h 40mMultiple Airlines
Deal found 19-11S$ 1,501
Mon 16-217:52IAD - SIN
2 stops37h 18mCathay Pacific
Mon 23-201:25SIN - IAD
2 stops34h 26mCathay Pacific
Deal found 19-11S$ 1,516
Thu 8-122:32IAD - SIN
2 stops32h 43mUnited Airlines
Wed 21-110:10SIN - IAD
2 stops24h 07mUnited Airlines
Deal found 17-11S$ 1,538
Mon 2-220:05IAD - SIN
2 stops31h 35mQatar Airways
Mon 9-203:15SIN - IAD
1 stop42h 05mQatar Airways
Deal found 19-11S$ 1,634
Mon 1-1207:15IAD - SIN
2 stops32h 45mDelta
Tue 16-1201:35SIN - IAD
2 stops34h 52mDelta
Deal found 18-11S$ 1,680
Thu 19-218:10IAD - SIN
2 stops38h 45mSAUDIA
Fri 27-209:35SIN - IAD
2 stops42h 10mSAUDIA
Deal found 19-11S$ 1,488
Thu 8-122:32IAD - SIN
2 stops32h 43mUnited Airlines
Wed 14-122:20SIN - IAD
2 stops26h 03mUnited Airlines
Deal found 17-11S$ 1,538
Sun 12-416:25IAD - SIN
2 stops44h 10mMultiple Airlines
Mon 27-402:00SIN - IAD
2 stops39h 49mMultiple Airlines
Deal found 17-11S$ 1,555
Thu 9-418:50IAD - SIN
2 stops38h 55mSAUDIA
Fri 17-409:35SIN - IAD
2 stops42h 10mSAUDIA
Deal found 19-11S$ 1,488
Tue 17-206:00IAD - SIN
2 stops34h 00mDelta
Mon 9-301:35SIN - IAD
2 stops34h 21mDelta
Deal found 18-11S$ 1,680
Fri 9-112:40IAD - SIN
2 stops30h 20mUnited Airlines
Sun 18-110:45SIN - IAD
2 stops31h 39mUnited Airlines
Deal found 19-11S$ 1,615
Last-minute flights from Dulles Intl to Singapore
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated 20 November 2025 and is based on user searches.
Tue 25-1112:50IAD - SIN
3 stops31h 45mMultiple Airlines
Wed 3-1217:10SIN - IAD
3 stops35h 20mMultiple Airlines
Deal found 17-11S$ 1,520
Tue 25-1120:05IAD - SIN
1 stop23h 40mQatar Airways
Tue 2-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 17-11S$ 1,719
Wed 26-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Wed 3-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 18-11S$ 1,509
Wed 26-1112:50IAD - SIN
3 stops31h 45mMultiple Airlines
Thu 4-1218:35SIN - IAD
2 stops33h 55mMultiple Airlines
Deal found 18-11S$ 1,643
Thu 27-1114:30IAD - SIN
1 stop28h 30mUnited Airlines
Fri 5-1222:20SIN - IAD
1 stop21h 35mUnited Airlines
Deal found 19-11S$ 1,531
Thu 27-1107:38IAD - SIN
2 stops40h 22mMultiple Airlines
Thu 4-1200:05SIN - IAD
1 stop29h 35mMultiple Airlines
Deal found 19-11S$ 1,693
Sat 29-1117:30IAD - SIN
2 stops34h 30mMultiple Airlines
Sun 7-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 19-11S$ 1,628
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 20 November 2025.
Mon 11-513:20IAD - SIN
1 stop31h 15mTurkish Airlines
Deal found 19-11S$ 715
Thu 19-218:20IAD - SIN
2 stops35h 45mMultiple Airlines
Deal found 17-11S$ 717
Sun 10-521:40IAD - SIN
1 stop23h 00mTurkish Airlines
Deal found 19-11S$ 719
Sat 10-114:35IAD - SIN
2 stops54h 40mMultiple Airlines
Deal found 17-11S$ 723
Fri 9-106:00IAD - SIN
3 stops52h 10mMultiple Airlines
Deal found 17-11S$ 724
Wed 26-1107:38IAD - SIN
2 stops28h 12mAlaska Airlines
Deal found 18-11S$ 729
Thu 4-1205:45IAD - SIN
3 stops51h 10mMultiple Airlines
Deal found 18-11S$ 734
Mon 5-114:35IAD - SIN
3 stops57h 20mMultiple Airlines
Deal found 18-11S$ 736
Sat 7-214:35IAD - SIN
3 stops33h 45mMultiple Airlines
Deal found 18-11S$ 737
Sat 21-214:35IAD - SIN
3 stops32h 30mMultiple Airlines
Deal found 17-11S$ 742
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 20 November 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 20 November 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 4-4
18:50-21:45
2 stops62h 55m
Singapore Changi
Sun 12-4
09:35-15:45
2 stops66h 10m
S$ 1,488
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 19-2
18:10-21:55
2 stops38h 45m
Singapore Changi
Fri 27-2
09:35-14:45
2 stops42h 10m
S$ 1,488
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 9-4
18:50-21:45
2 stops38h 55m
Singapore Changi
Fri 17-4
09:35-15:45
2 stops42h 10m
S$ 1,488
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 5-2
14:35-11:30
2 stops31h 55m
Singapore Changi
Fri 13-2
19:25-09:05
1 stop26h 40m
S$ 1,501
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 16-2
17:52-20:10
2 stops37h 18m
Singapore Changi
Mon 23-2
01:25-22:51
2 stops34h 26m
S$ 1,516
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 8-1
22:32-20:15
2 stops32h 43m
Singapore Changi
Wed 21-1
10:10-21:17
2 stops24h 07m
S$ 1,538
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 8-1
22:32-20:15
2 stops32h 43m
Singapore Changi
Wed 14-1
22:20-11:23
2 stops26h 03m
S$ 1,538
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sun 12-4
16:25-00:35
2 stops44h 10m
Singapore Changi
Mon 27-4
02:00-05:49
2 stops39h 49m
S$ 1,555
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 9-1
12:40-08:00
2 stops30h 20m
Singapore Changi
Sun 18-1
10:45-05:24
2 stops31h 39m
S$ 1,615
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 2-2
20:05-16:40
2 stops31h 35m
Singapore Changi
Mon 9-2
03:15-08:20
1 stop42h 05m
S$ 1,634
Flights are sorted by cheapest return flights first.
Deals found on 17-11
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 14 November 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$ 1,066). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,491). 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.
How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Singapore?
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$ 2,188.
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 20 November 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 37h 18m. Fly via SAUDIA or Cathay Pacific 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$ 1,383, 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$ 1,066). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,491). 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 20 November 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 20 November 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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