Cheap flights from Washington, D.C. (WAS) to Singapore (SIN) from $421

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
WAS — SIN
Jun 25 — Jul 21

The best prices from Washington, D.C. to Singapore Changi are usually found in April or September, booked 52 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 June 20, 2024.

Popular in

December

Cheapest in

April

Round-trip from

$1,139

One-way from

$421
High demand for flights, 29% potential price rise
Best time to find cheap flights, 22% potential price drop
From Washington, D.C. (WAS) to Singapore Changi
One-way flight from Washington, D.C. (WAS) to Singapore Changi

What is the cheapest day to fly round-trip from Washington, D.C. to Singapore?

Users have found that flying from Washington, D.C. to Singapore on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Washington, D.C. to Singapore?

To save on the cost of your flight from Washington, D.C. to Singapore, book at least 53 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,164 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,169.

What is the cheapest month to fly from Washington, D.C. to Singapore?

April can be a great time to fly to Singapore from Washington, D.C. with a flight ticket averaging about $1,330. Cheapflights users have found deals in the month of April for as cheap as $904. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from WAS to SIN?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Singapore in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the afternoon.

Cheap Washington, D.C. to Singapore flights in June & July 2024

Find cheap flight options from Washington, D.C. to Singapore specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,256,981 searches. Prices were last updated on June 20, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Singapore in 2024. Check back regularly for other flight deals.
Sun 7/74:40 pmIAD - SIN
1 stop28h 05mTurkish Airlines
Thu 7/1110:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/20$1,382
Tue 7/94:40 pmIAD - SIN
1 stop28h 05mTurkish Airlines
Wed 7/1711:25 pmSIN - IAD
1 stop27h 20mTurkish Airlines
Deal found 6/19$1,404
Sun 7/710:55 amIAD - SIN
2 stops45h 25mMultiple Airlines
Sun 7/1410:30 amSIN - IAD
2 stops34h 15mMultiple Airlines
Deal found 6/19$1,406
Tue 7/910:55 amIAD - SIN
2 stops25h 15mQatar Airways
Wed 7/176:45 pmSIN - IAD
1 stop26h 00mQatar Airways
Deal found 6/19$1,421
Sun 7/74:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Sun 7/1410:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/19$1,432
Sun 7/149:50 pmIAD - SIN
1 stop32h 05mTurkish Airlines
Tue 8/2710:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/20$1,447
Tue 7/99:50 pmIAD - SIN
1 stop22h 55mTurkish Airlines
Mon 7/1511:25 pmSIN - IAD
1 stop27h 20mTurkish Airlines
Deal found 6/19$1,461
Wed 7/174:00 pmIAD - SIN
3 stops30h 30mMultiple Airlines
Mon 8/265:15 pmSIN - IAD
1 stop34h 30mMultiple Airlines
Deal found 6/20$1,473
Thu 7/184:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Tue 8/2710:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/19$1,477

Washington, D.C. to Singapore 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and Singapore in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Singapore in 2024. Check back regularly for other flight deals.
Thu 9/127:10 pmIAD - SIN
1 stop32h 35mSAUDIA
Mon 9/235:15 pmSIN - IAD
1 stop34h 30mSAUDIA
Deal found 6/20$784
Sat 8/317:10 pmIAD - SIN
1 stop32h 35mSAUDIA
Sat 9/145:15 pmSIN - IAD
1 stop34h 30mSAUDIA
Deal found 6/20$843
Sat 9/287:10 pmIAD - SIN
1 stop32h 35mSAUDIA
Sat 10/55:15 pmSIN - IAD
1 stop34h 30mSAUDIA
Deal found 6/19$900
Mon 9/94:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Wed 9/1811:25 pmSIN - IAD
1 stop32h 30mTurkish Airlines
Deal found 6/19$905
Mon 9/164:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Mon 9/2311:25 pmSIN - IAD
1 stop27h 20mTurkish Airlines
Deal found 6/19$924
Wed 9/119:50 pmIAD - SIN
1 stop22h 55mTurkish Airlines
Mon 9/2311:25 pmSIN - IAD
1 stop27h 20mTurkish Airlines
Deal found 6/20$928
Tue 9/249:50 pmIAD - SIN
1 stop22h 55mTurkish Airlines
Thu 10/244:30 amSIN - IAD
1 stop27h 25mTurkish Airlines
Deal found 6/18$941
Sat 9/284:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Fri 10/410:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/19$951
Wed 9/259:50 pmIAD - SIN
1 stop22h 55mTurkish Airlines
Fri 10/2510:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/19$953

Washington, D.C. to Singapore flights leaving soon

Find last-minute flight options from Washington, D.C. to Singapore for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
Have a look at some of the flights available from Washington, D.C. to Singapore departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Sat 6/299:05 pmIAD - SIN
2 stops30h 30mQatar Airways
Mon 7/82:45 amSIN - IAD
1 stop25h 25mQatar Airways
Deal found 6/19$1,559
Sat 6/294:40 pmIAD - SIN
1 stop28h 05mTurkish Airlines
Tue 7/910:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/19$1,606
Sat 6/294:40 pmIAD - SIN
1 stop37h 15mTurkish Airlines
Tue 7/910:15 amSIN - IAD
1 stop40h 30mTurkish Airlines
Deal found 6/20$1,609
Sat 6/299:05 pmIAD - SIN
2 stops33h 10mQatar Airways
Tue 7/96:45 pmSIN - IAD
1 stop26h 00mQatar Airways
Deal found 6/20$1,678
Sat 6/299:05 pmIAD - SIN
2 stops32h 25mQatar Airways
Mon 7/82:45 amSIN - IAD
1 stop42h 00mQatar Airways
Deal found 6/20$1,681
Sat 6/2910:55 amIAD - SIN
1 stop21h 50mQatar Airways
Mon 7/82:45 amSIN - IAD
1 stop25h 25mQatar Airways
Deal found 6/19$1,853
Sat 6/299:05 pmIAD - SIN
1 stop23h 55mAmerican Airlines
Mon 7/82:45 amSIN - IAD
1 stop42h 00mAmerican Airlines
Deal found 6/20$1,954
Sat 6/295:43 pmIAD - SIN
2 stops30h 42mCathay Pacific
Tue 7/98:00 amSIN - IAD
2 stops43h 16mCathay Pacific
Deal found 6/20$2,117
Sat 6/298:20 amIAD - SIN
3 stops33h 55mUnited Airlines
Tue 7/99:00 pmSIN - IAD
2 stops24h 53mUnited Airlines
Deal found 6/19$2,143

One-way flights to Singapore from Washington, D.C.

Search for one-way flight options from Washington, D.C. to Singapore. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
If you're seeking multiple options on one-way flights from Washington, D.C. to Singapore, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from Washington, D.C. to Singapore instead should update the search form at the top of page.
Thu 8/227:10 pmIAD - SIN
1 stop32h 35mSAUDIA
Deal found 6/19$421
Thu 8/227:10 pmIAD - SIN
2 stops36h 35mMultiple Airlines
Deal found 6/19$554
Tue 7/167:42 amBWI - SIN
2 stops51h 28mMultiple Airlines
Deal found 6/19$572
Thu 8/227:10 pmIAD - SIN
3 stops32h 35mMultiple Airlines
Deal found 6/19$588
Wed 7/176:45 amBWI - SIN
2 stops28h 25mMultiple Airlines
Deal found 6/19$596
Wed 7/179:20 amBWI - SIN
3 stops49h 50mMultiple Airlines
Deal found 6/19$598
Wed 10/3012:50 pmDCA - SIN
2 stops32h 25mAmerican Airlines
Deal found 6/19$608
Fri 8/239:50 pmIAD - SIN
1 stop22h 55mTurkish Airlines
Deal found 6/19$612
Fri 8/2310:55 amIAD - SIN
2 stops35h 20mMultiple Airlines
Deal found 6/19$618

Find flights from Washington, D.C. to Singapore within your budget

Customize your flight search to find flights from Washington, D.C. 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 3,256,981 searches. Data last updated June 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$843 - $1,299

Route

Depart

Return

Price

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 8/31

1 stop32h 35m

Singapore Changi

Sat 9/14

1 stop34h 30m

$843

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/9

1 stop37h 15m

Singapore Changi

Wed 9/18

1 stop32h 30m

$905

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 11/20

1 stop22h 05m

Singapore Changi

Fri 12/6

1 stop26h 55m

$1,048

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 10/1

1 stop21h 50m

Singapore Changi

Sat 11/9

1 stop26h 55m

$1,064

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/9

2 stops39h 25m

Singapore Changi

Tue 9/17

1 stop25h 25m

$1,081

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 11/3

2 stops27h 50m

Singapore Changi

Mon 11/11

1 stop32h 35m

$1,086

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 9/28

2 stops59h 05m

Singapore Changi

Sat 10/5

2 stops49h 10m

$1,236

Washington, D.C. Reagan-NationalSingapore Changi

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 9/25

2 stops28h 10m

Singapore Changi

Fri 10/25

2 stops26h 50m

$1,255

Washington, D.C. Dulles IntlSingapore Changi

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 9/20

2 stops25h 15m

Singapore Changi

Sun 10/6

2 stops26h 30m

$1,299

Flights are sorted by cheapest first

Deals found on 6/20

How far ahead should I book a flight from Washington, D.C. to Singapore?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Singapore. Price data was last updated on June 14, 2024.
To ensure you get the cheapest price possible for a flight from Washington, D.C. to Singapore, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Washington, D.C. to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Singapore. Price data was last updated on June 16, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. to Singapore flight should consider departing on Monday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Washington, D.C. to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Washington, D.C. with our price prediction graph.
Estimated round-trip 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.

Temperature and rainfall in Singapore by month

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

SIN

Temperature

78.8 - 82.4 °F

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 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

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 June 20, 2024.
Read reviews from past customers who have flown Turkish Airlines, JetBlue and American Airlines from Washington, D.C. to Singapore. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

8.5
Very good
885 reviews
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

8.3
Very good
1,449 reviews
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

8.3
Very good
1,400 reviews
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

8.1
Very good
3,844 reviews
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

8.0
Very good
10,000 reviews
8.5
Very good
885 reviews

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.0

Food

7.7

Overall

8.5

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    For a flight from Washington, D.C. to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city. Changi is the only Singapore airport and it handles 0 inbound flights from Washington, D.C. per day. 13 airlines have flights to Singapore Changi from Washington, D.C. on a regular basis.

  • Can I find flights from Washington, D.C. to Singapore for under $900 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. to Singapore for under $900. The cheapest flight booked recently is on SAUDIA for just $843, but on average you can expect to pay $959.

  • Are there last-minute flights available from Washington, D.C. to Singapore for under $1,600?

    There are currently 20+ open flights from Washington, D.C. to Singapore within the next 7 days for less than $1,600.

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

    According to our current data, SAUDIA ($843), Turkish Airlines ($905), and Qatar Airways ($1,048) offers the cheapest pricing from Washington, D.C. to Singapore. Users have found that SAUDIA is 36% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Washington, D.C. to Singapore are SAUDIA ($421), American Airlines ($608), and Turkish Airlines ($612).

  • What are the most popular routes from Washington, D.C. to Singapore?

  • What does IAD to SIN mean?

    Washington, D.C. Dulles Intl Airport is IAD and Singapore Changi Airport is SIN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Where are the most common layover locations when flying from Washington, D.C. to Singapore?

  • What are some popular things to do or see while on a layover in Doha?

    Doha travelers tend to visit Aspire Tower, Museum of Islamic Art, and Qatar National Museum more than anywhere else. Aspire Tower, Museum of Islamic Art, and Qatar National Museum can be accessed by traveling approximately 10.6 mi, 5.2 mi, and 4.4 mi, respectively from Doha Hamad Intl. Travelers in need of a car in Doha can rent one for about $35 per day.

  • Where are the least popular layover locations for Washington, D.C. to Singapore flights?

  • Can I find deals for flights from Washington, D.C. to Singapore that include extra baggage allowance?

    The amount of baggage you can bring on your Washington, D.C. to Singapore flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Washington, D.C. to Singapore with specific airlines?

    Yes, Cheapflights allows you to browse and filter Washington, D.C. to Singapore flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Washington, D.C. to Singapore that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Singapore?

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

  • Can I find deals for business class flights from Washington, D.C. to Singapore?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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.

  • Can I find deals for flights from Washington, D.C. to Singapore that allow pets onboard?

    Many airlines flying from Washington, D.C. to Singapore offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Washington, D.C. to Singapore?

    Yes, you can often find last-minute deals on Washington, D.C. to Singapore flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. to Singapore flight deals updated?

    The Washington, D.C. to Singapore flight deals you see on this page were last updated on 6/20.

  • What are the most popular airlines that fly from Washington, D.C. to Singapore?

  • What is the cheapest month to book a flight from Washington, D.C. to Singapore?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $1,139). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of $1,585). 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

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.

Alternative routes for Washington, D.C. to Singapore
See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Washington, D.C. to Singapore

Discover the top 10 airlines that operate flights from Washington, D.C. 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 3,256,981 searches. Data last updated June 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$884Average$1,114FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$953Average$1,053FlexibilityNo cancel feeOn-time77%
DeltaCheapest$995Average$1,398FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$1,028Average$1,258FlexibilityNo cancel feeOn-time62%
Qatar AirwaysCheapest$1,033Average$1,314FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,055Average$1,291FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,107Average$1,354FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$1,193Average$1,661FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$1,456Average$1,534FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$1,641Average$1,787FlexibilityNo cancel feeOn-time75%

Search flights from Washington, D.C. to Singapore by cabin class

Find flights from Washington, D.C. to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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.