Find flights
When to book
Airlines
FAQs

Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 538

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 2-9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or March, booked 52 days in advance, depart on a Monday or Tuesday and return on a Friday

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 13 June 2025.

Round-trip from

S$ 1,402

One-way from

S$ 538

Popular in

December

Cheapest in

November

Average price

S$ 1,916
Turkish Airlines
  • Turkish Airlines
  • 9-7-7-10
  • 2 total stops
  • 57h 50m total
  • Washington, D.C. to Singapore
Search Deals
IndiGo
  • IndiGo
  • 2-9
  • 2 total stops
  • 39h 50m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (S$ 56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 78 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Dulles Intl to Singapore

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 13 June 2025.

Wed 9-713:30IAD - SIN
1 stop31h 15mTurkish Airlines
Tue 7-1005:10SIN - IAD
1 stop26h 35mTurkish Airlines
Deal found 11-6S$ 1,402
Mon 8-906:00IAD - SIN
2 stops29h 40mKorean Air
Wed 17-901:10SIN - IAD
2 stops32h 03mKorean Air
Deal found 12-6S$ 1,403
Sun 14-1211:00IAD - SIN
1 stop31h 00mAir India
Mon 22-1208:20SIN - IAD
1 stop35h 30mAir India
Deal found 12-6S$ 1,408
Thu 13-1120:05IAD - SIN
1 stop29h 50mQatar Airways
Tue 18-1117:25SIN - IAD
2 stops27h 55mQatar Airways
Deal found 12-6S$ 1,411
Wed 9-713:30IAD - SIN
1 stop40h 25mMultiple Airlines
Wed 23-719:45SIN - IAD
2 stops36h 00mMultiple Airlines
Deal found 11-6S$ 1,413
Fri 11-709:10IAD - SIN
2 stops33h 55mAir Canada
Thu 17-701:45SIN - IAD
2 stops40h 36mAir Canada
Deal found 11-6S$ 1,438
Wed 9-721:40IAD - SIN
2 stops32h 05mIndiGo
Wed 23-719:45SIN - IAD
2 stops36h 00mIndiGo
Deal found 11-6S$ 1,466
Thu 20-1120:40IAD - SIN
2 stops29h 10mEthiopian Air
Sun 30-1102:00SIN - IAD
2 stops30h 05mEthiopian Air
Deal found 11-6S$ 1,490
Thu 31-706:32IAD - SIN
1 stop23h 53mUnited Airlines
Mon 15-908:45SIN - IAD
1 stop24h 32mUnited Airlines
Deal found 11-6S$ 1,568
Mon 8-1213:05IAD - SIN
2 stops28h 50mANA
Mon 15-1222:20SIN - IAD
2 stops26h 23mANA
Deal found 12-6S$ 1,631
Sat 11-1021:00IAD - SIN
1 stop24h 00mJetBlue
Sat 18-1003:10SIN - IAD
1 stop24h 30mJetBlue
Deal found 11-6S$ 1,635
Wed 27-807:30IAD - SIN
2 stops33h 30mDelta
Sat 6-901:10SIN - IAD
2 stops34h 30mDelta
Deal found 11-6S$ 1,650

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 13 June 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

Wed 9-7

13:30-08:45

1 stop31h 15m

Singapore Changi

Tue 7-10

05:10-19:45

1 stop26h 35m

S$ 1,402

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8-9

06:00-23:40

2 stops29h 40m

Singapore Changi

Wed 17-9

01:10-21:13

2 stops32h 03m

S$ 1,403

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 13-11

20:05-14:55

1 stop29h 50m

Singapore Changi

Tue 18-11

17:25-08:20

2 stops27h 55m

S$ 1,411

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9-7

13:30-17:55

1 stop40h 25m

Singapore Changi

Wed 23-7

19:45-19:45

2 stops36h 00m

S$ 1,413

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 20-7

12:50-07:15

1 stop30h 25m

Singapore Changi

Mon 4-8

08:45-11:15

1 stop38h 30m

S$ 1,429

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 11-7

09:10-07:05

2 stops33h 55m

Singapore Changi

Thu 17-7

01:45-06:21

2 stops40h 36m

S$ 1,438

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9-7

21:40-17:45

2 stops32h 05m

Singapore Changi

Wed 23-7

19:45-19:45

2 stops36h 00m

S$ 1,466

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 20-11

20:40-14:50

2 stops29h 10m

Singapore Changi

Sun 30-11

02:00-19:05

2 stops30h 05m

S$ 1,490

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 31-7

06:32-18:25

1 stop23h 53m

Singapore Changi

Mon 11-8

20:40-07:19

1 stop22h 39m

S$ 1,568

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8-12

13:05-06:55

2 stops28h 50m

Singapore Changi

Mon 15-12

22:20-11:43

2 stops26h 23m

S$ 1,631

Flights are sorted by cheapest return flights first.

Deals found on 11-6

Showing 1-10 of 28 results
1
2
3

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 9 June 2025.

Booking 52 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.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

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 13 June 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air and ANA from Washington, D.C. to Singapore to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,204 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,091 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very Good
882 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Singapore Airlines
8.1
Very Good
1,304 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very Good
7,950 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 0 different airlines.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?

    Turkish Airlines, at S$ 1,402, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.Alternate airlines to your destination round-trip include Korean Air and Qatar Airways. Turkish Airlines is priced at 9% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Singapore one-way?

    The cheapest airline one-way is IndiGo, with whom users have recently found tickets for as low as S$ 538. However, be on the lookout for offers from Air India and Turkish Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Singapore for a low price.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights