WAS - SIN

$419 Find Cheap Flights from Washington, D.C. to Singapore - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$905
Typical prices: $1,167-$1,709
Ethiopian Air
Sat 11/10Thu 11/29
IAD - SIN • 1 stop
Cheapest one-way
$419
Typical prices: $592-$1,016
Multiple Airlines
Thu 11/1
IAD - SIN • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Singapore. You'll need to take a connecting flight to reach the destination.
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Top routes
DCA - SIN
Cheapest • 2% average savings
IAD - SIN
Most popular
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When to book
26 weeks
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 24% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Jeddah King Abdulaziz Intl (JED)
Cheapest • Avg $852 (round-trip)
Dubai Intl (DXB)
Shortest trip • 23h 13m (one-way)
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Flight Deals

Cheap Flights from Washington, D.C. to Singapore (WAS-SIN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Singapore

Tue, Nov 10 - Sun, Nov 29
Ethiopian Air Logo
10:00 am - 2:50 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
39h 50m1 stop Addis Ababa Bole
Ethiopian Air Logo
2:00 am - 7:05 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
30h 05m2 stops Addis Ababa Bole Lome
$905Ethiopian Air
Mon, Oct 12 - Mon, Oct 26
Etihad Airways Logo
3:10 pm - 9:40 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 30m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
7:25 pm - 10:05 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
26h 40m1 stop Abu Dhabi Zayed Intl
$962Etihad Airways
Tue, Oct 27 - Tue, Nov 3
Etihad Airways Logo
3:35 pm - 9:35 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 00m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
7:25 pm - 9:05 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
26h 40m1 stop Abu Dhabi Zayed Intl
$963Etihad Airways
Tue, Nov 10 - Thu, Nov 19
Air China Logo
10:00 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
34h 55m1 stop Beijing Capital
Air China Logo
5:45 pm - 6:30 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 45m1 stop Beijing Capital
$991Air China
Sun, Nov 15 - Tue, Nov 24
Qatar Airways Logo
10:30 am - 9:15 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
21h 45m1 stop Doha Hamad Intl
Qatar Airways Logo
8:15 pm - 8:10 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
24h 55m1 stop Doha Hamad Intl
$1,055Qatar Airways
Sun, Nov 8 - Thu, Nov 19
Qatar Airways Logo
10:30 am - 9:15 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
21h 45m1 stop Doha Hamad Intl
Qatar Airways Logo
3:15 am - 3:55 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
25h 40m1 stop Doha Hamad Intl
$1,055Qatar Airways
Wed, Oct 28 - Wed, Nov 4
Korean Air Logo
10:14 am - 5:00 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 46m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Korean Air Logo
10:30 pm - 9:50 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
24h 20m1 stop Incheon Intl
$1,061Korean Air
Thu, Nov 12 - Tue, Nov 24
Korean Air Logo
11:50 am - 5:00 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
28h 10m1 stop Incheon Intl
Korean Air Logo
10:30 am - 9:50 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
36h 20m1 stop Incheon Intl
$1,066Korean Air
Sun, Oct 11 - Thu, Oct 15
Turkish Airlines Logo
9:40 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
23h 05m1 stop Istanbul
Turkish Airlines Logo
11:05 pm - 11:30 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
24h 25m1 stop Istanbul
$1,085Turkish Airlines
Mon, Nov 2 - Thu, Nov 5
Turkish Airlines Logo
2:30 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
38h 10m1 stop Istanbul
Turkish Airlines Logo
4:35 am - 8:25 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
28h 50m1 stop Istanbul
$1,111Turkish Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. to Singapore flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Washington, D.C. to Singapore with more confidence.

How much is a round-trip flight from Washington, D.C. to Singapore?

Round-trip flights from Washington, D.C. to Singapore start at $905. Prices are below average for this route right now, with typical round-trip fares ranging from $1,167 to $1,709. The lowest price found in the past 5 days was $905 on Ethiopian Air.

What is the cheapest Washington, D.C. to Singapore flight route?

There's little price difference between Washington, D.C. to Singapore routes. They average around $1,303 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Singapore?

Monday is the cheapest day of the week to fly from Washington, D.C. to Singapore, it is 12% cheaper than the average day. Friday is the most expensive day with flight prices 21% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•February is the cheapest month to fly from Washington, D.C. to Singapore at $1,004 round-trip.
•December ($1,868) and June ($1,486) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 86% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Washington, D.C. to Singapore the cheapest?

Flights from Washington, D.C. to Singapore are cheapest 26 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Washington, D.C. to Singapore flights

Low season

May

Cheapest flight

$419
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Washington, D.C. Dulles Intl Airport to Singapore

When to book flights from Washington, D.C. to Singapore

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Singapore flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Washington, D.C. to Singapore?

    Flights from Washington, D.C. to Singapore may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Singapore Changi (SIN).

  • What cabin classes can I book on flights from Washington, D.C. to Singapore?

    Four cabin classes are available on flights from Washington, D.C. to Singapore:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • Which airports do connecting flights from Washington, D.C. to Singapore pass through?

    One-stop flights from Washington, D.C. to Singapore most commonly connect through:

    • Doha Hamad Intl (DOH) - 40% of one-stop connections
    • Istanbul (IST) - 27% of one-stop connections
    • San Francisco (SFO) - 15% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 8% of one-stop connections

    Doha Hamad Intl (DOH) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Washington, D.C. to Singapore?

    Yes. Being flexible with your travel dates can save you up to 27% on the Washington, D.C. to Singapore route. Monday is the cheapest departure day at $1,182 round-trip on average, while Friday is the most expensive at $1,616, a difference of $434. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Singapore?

    Some of the most popular sights in Singapore are Marina Bay Sands, Sentosa and Singapore National Stadium. These are among the most viewed places in Singapore on KAYAK.

  • How expensive are last-minute Washington, D.C. to Singapore flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 5% above the route average of $1,330. Book 26 weeks before departure for the lowest fares.

  • How long is a flight from Washington, D.C. to Singapore?

    A nonstop flight from Washington, D.C. to Singapore takes 0h 00m, covering 9,648 miles.

  • Do I need a passport to fly from Washington, D.C. to Singapore?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Washington, D.C. to Singapore looking right now?

    One-way fares from Washington, D.C. to Singapore are currently lower than usual. Average one-way flight prices are about $524, which is 27% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Singapore?

    Flying via Dubai Intl (DXB) gives the shortest average 1-stop total travel time at 23h 13m, compared with 23h 47m via Taipei City Taiwan Taoyuan Intl (TPE) and 24h 15m via San Francisco (SFO).

  • What is the time difference between Washington, D.C. and Singapore?

    Singapore is 12 hours ahead of Washington, D.C. (Singapore Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Singapore Changi Airport (SIN)?

    Singapore Changi Airport (SIN) hosts 5 major car rental companies, with daily rates starting from around $59 for economy cars. Top options include:
    • Avis
    • Sixt
    • Thrifty
    • Hertz
    • Europcar

  • How much should I expect to pay for a Washington, D.C. to Singapore flight?

    Round-trip flights from Washington, D.C. to Singapore range from $1,167 to $1,709, with an average of $1,330 over the past 12 months. Anything below $1,167 counts as a good deal.

Your guide to booking Washington, D.C. to Singapore flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $1,182 - about $434 less than Friday (27% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 25% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Singapore trip for February. Fares historically average $1,004 round-trip in that month - typically $864 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Singapore Changi Airport.
    - Crowne Plaza Changi Airport by IHG
    - YOTELAIR Singapore Changi Airport
    - Changi Transit Hotel Terminal 1

More options for your flight from Washington, D.C. to Singapore

Complete your trip to Singapore with a hotel stay or car rental

Car rentals in Singapore
Hotels in Singapore
Vacations in Singapore