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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 333

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 14-2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
1 févr. — 8 févr.1
1 adult
1 adult, Economy, 0 bags

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 2 janvier 2026.

mer. 31-1218:10IAD - SIN
3 stops34h 10mMultiple Airlines
dim. 4-118:35SIN - IAD
2 stops34h 20mMultiple Airlines
Deal found 31-12S$ 2,334
mer. 31-1222:05IAD - SIN
1 stop44h 55mUnited Airlines
dim. 4-122:20SIN - IAD
1 stop21h 27mUnited Airlines
Deal found 31-12S$ 2,771
mer. 31-1213:30IAD - SIN
2 stops34h 25mMultiple Airlines
mar. 6-110:25SIN - IAD
1 stop38h 20mMultiple Airlines
Deal found 30-12S$ 7,285
mer. 31-1213:30IAD - SIN
1 stop30h 15mTurkish Airlines
mar. 6-110:25SIN - IAD
1 stop45h 55mTurkish Airlines
Deal found 30-12S$ 7,407
mer. 31-1216:00IAD - SIN
2 stops27h 00mUnited Airlines
mar. 6-106:35SIN - IAD
2 stops25h 46mUnited Airlines
Deal found 30-12S$ 9,830

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 2 janvier 2026.

Round-trip from

S$ 1,450

One-way from

S$ 333

Popular in

December

Cheapest in

October

Average price

S$ 1,527
United Airlines
  • United Airlines
  • 25-3-14-4
  • 3 total stops
  • 51h 52m total
  • Washington, D.C. to Singapore
Search Deals
14-2
  • 14-2
  • 3 total stops
  • 36h 23m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (S$ 281 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 109 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
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 2 janvier 2026.
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

mer. 25-3

18:03-07:00

1 stop24h 57m

Singapore Changi

lun. 13-4

20:40-11:35

2 stops26h 55m

S$ 1,450

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

jeu. 5-3

07:15-20:25

2 stops48h 10m

Singapore Changi

mer. 11-3

10:40-10:50

1 stop36h 10m

S$ 1,455

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mar. 31-3

07:20-23:40

2 stops28h 20m

Singapore Changi

mer. 15-4

22:30-23:44

2 stops37h 14m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mer. 1-4

13:15-05:00

1 stop27h 45m

Singapore Changi

lun. 13-4

22:30-18:08

2 stops31h 38m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 30-3

07:20-23:40

2 stops28h 20m

Singapore Changi

dim. 12-4

22:30-23:36

2 stops37h 06m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mer. 1-4

13:15-23:40

1 stop22h 25m

Singapore Changi

mar. 14-4

07:30-18:08

2 stops46h 38m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mer. 1-4

07:00-05:00

2 stops34h 00m

Singapore Changi

mer. 15-4

22:30-23:44

2 stops37h 14m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 30-3

07:20-23:40

2 stops28h 20m

Singapore Changi

mer. 15-4

22:30-23:44

2 stops37h 14m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mer. 1-4

13:15-23:40

1 stop22h 25m

Singapore Changi

mer. 15-4

07:30-18:08

2 stops46h 38m

S$ 1,463

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

jeu. 2-4

07:00-05:00

2 stops34h 00m

Singapore Changi

mer. 15-4

22:30-00:28

2 stops37h 58m

S$ 1,463

Flights are sorted by cheapest return flights first.

Deals found on 30-12

Showing 1-10 of 20 results
1
2

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

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 26 December 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,020). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,470). 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?

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 2 janvier 2026.
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.
Qatar Airways
7.4
Good
3,698 reviews
Check prices

Crew

7.9

Boarding

7.5

Food

7.3

Overall

7.4

Entertainment

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,698 reviews
Qatar Airways
7.4
Good
3,698 reviews
Check prices

Crew

7.9

Boarding

7.5

Food

7.3

Overall

7.4

Entertainment

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
JetBlue
7.2
Good
2,901 reviews
Qatar Airways
7.4
Good
3,698 reviews
Check prices

Crew

7.9

Boarding

7.5

Food

7.3

Overall

7.4

Entertainment

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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 24h 57m. Fly via United Airlines, Korean Air, or Delta 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$ 1,362, 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 14% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Singapore.

  • 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,020). Flying from Washington, D.C. Dulles Intl Airport to Singapore in June is currently the most expensive (average of S$ 1,470). 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.

See more FAQs

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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 2 janvier 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,362AverageS$ 2,220FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,378AverageS$ 2,532FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

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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?

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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.

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