WAS - SIN

$458 Find Cheap Flights from Washington, D.C. to Singapore - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$1,166
Typical prices: $1,160-$1,708
Ethiopian Air
Sat 4/7Fri 4/20
IAD - SIN • 2 stops
Cheapest one-way
$458
Typical prices: $601-$969
Multiple Airlines
Sun 11/18
IAD - SIN • 3 stops
Nonstop flights
There are currently no direct flights between Washington, D.C. and Singapore. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top routes
Cheapest • 2% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 14 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $852 (round-trip)
Shortest trip • 23h 13m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Singapore!
Flight Deals
Booking Insights
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

Fri, Jan 8 - Wed, Jan 13
Turkish Airlines Logo
1:30 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 15m1 stop Istanbul
Turkish Airlines Logo
11:40 am - 11:45 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 05m1 stop Istanbul
$1,167Turkish Airlines
Sun, Nov 29 - Thu, Dec 10
Turkish Airlines Logo
1:30 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
39h 10m1 stop Istanbul
Turkish Airlines Logo
11:15 pm - 7:25 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
33h 10m1 stop Istanbul
$1,168Turkish Airlines
Tue, Nov 17 - Mon, Nov 23
Etihad Airways Logo
2:25 pm - 9:35 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 10m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
7:25 pm - 9:00 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
26h 35m1 stop Abu Dhabi Zayed Intl
$1,170Etihad Airways
Thu, Feb 11 - Sat, Feb 27
Gulf Air Logo
2:23 pm - 12:50 pmDCA  Washington, D.C. Reagan-National-SIN Singapore Changi
57h 27m2 stops New York John F Kennedy Intl Manama Bahrain Intl
Gulf Air Logo
8:00 pm - 7:19 pmSIN  Singapore Changi-DCA Washington, D.C. Reagan-National
36h 19m2 stops Manama Bahrain Intl New York John F Kennedy Intl
$1,171Gulf Air
Sun, Nov 22 - Sun, Dec 13
Delta Logo
6:00 am - 5:00 amDCA  Washington, D.C. Reagan-National-SIN Singapore Changi
34h 00m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Delta Logo
10:30 am - 10:41 pmSIN  Singapore Changi-DCA Washington, D.C. Reagan-National
25h 11m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,172Delta
Wed, Apr 7 - Wed, Apr 21
Korean Air Logo
10:05 am - 5:00 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 55m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Korean Air Logo
10:00 pm - 11:15 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
25h 15m1 stop Incheon Intl
$1,173Korean Air
Tue, Nov 24 - Sat, Dec 19
Etihad Airways Logo
2:25 pm - 9:35 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 10m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
7:25 pm - 9:00 amSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
26h 35m1 stop Abu Dhabi Zayed Intl
$1,174Etihad Airways
Thu, Apr 8 - Mon, Apr 19
Korean Air Logo
1:15 pm - 5:00 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
27h 45m1 stop Incheon Intl
Korean Air Logo
1:25 am - 2:41 pmSIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
25h 16m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,179Korean Air
Tue, Nov 17 - Wed, Nov 25
Qatar Airways Logo
8:05 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
23h 40m1 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
$1,221Qatar Airways
Wed, Nov 18 - Wed, Nov 25
Qatar Airways Logo
8:05 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
23h 40m1 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
$1,221Qatar Airways
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 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 typically range from $1,160 to $1,708. The lowest price found in the past 5 days was $1,166, 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 $1,289 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?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Washington, D.C. to Singapore. It’s 10% cheaper than the average day, while Friday is the most expensive, with prices 28% higher.

What’s 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 $970 round-trip.
•December ($1,915) and June ($1,492) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Washington, D.C. to Singapore are cheapest 14 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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

Low season

August

Cheapest flight

$458
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 88% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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.

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

    A nonstop flight from Washington, D.C. to Singapore takes 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 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 $1,160 to $1,708, with an average of $1,311 over the past 12 months. Anything below $1,160 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 7% above the $1,311 route average. Book 14 weeks before departure for the lowest fares.

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

    One-way fares from Washington, D.C. to Singapore are currently higher than usual. Average one-way flight prices are about $1,279, which is 80% above the typical average for this route.

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

    Singapore Changi Airport (SIN) hosts 5 major car rental companies, with daily rates averaging $106 for economy cars. Top options include:

    • Avis
    • Sixt
    • Thrifty
    • Hertz
    • Europcar

  • 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).

  • 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) - 38% of one-stop connections
    • Istanbul (IST) - 26% of one-stop connections
    • San Francisco (SFO) - 14% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) - 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 30% on flights from Washington, D.C. to Singapore. Monday is the cheapest departure day at $1,186 round-trip on average, while Friday is the most expensive at $1,685, a difference of $499.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 45m via Taipei City Taiwan Taoyuan Intl (TPE) and 24h 21m via San Francisco (SFO).

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

    Singapore is 13 hours ahead of Washington, D.C. (Singapore Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • 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.

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 are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $1,186, about $499 less than Friday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 27% 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 $970 round-trip in that month - typically $945 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