S$633 Cheap Flights from Washington to Singapore

View S$633 flight on Wed, 10 Sep, 2025Opens in a new window

Popular airlines from Washington to Singapore (SIN-Changi)

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Cheap Flights from Washington to Singapore (WAS-SIN)

Prices were available within the past 7 days and start at S$633 for one-way flights and S$1,149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Tue, 25 Nov - Mon, 8 Dec
IAD
Washington
SIN
Singapore
S$1,149 Return, found 3 days ago
S$1,149
Return
found 3 days ago
Select Air India flight, departing Tue, 25 Nov from Washington to Singapore, returning Mon, 8 Dec, priced at S$1,149 found 3 days ago
Etihad Airways
Wed, 24 Sep - Fri, 3 Oct
IAD
Washington
SIN
Singapore
S$1,187 Return, found 3 days ago
S$1,187
Return
found 3 days ago
Select Etihad Airways flight, departing Wed, 24 Sep from Washington to Singapore, returning Fri, 3 Oct, priced at S$1,187 found 3 days ago
Korean Air
Mon, 10 Nov - Mon, 24 Nov
IAD
Washington
SIN
Singapore
S$1,267 Return, found 3 days ago
S$1,267
Return
found 3 days ago
Select Korean Air flight, departing Mon, 10 Nov from Washington to Singapore, returning Mon, 24 Nov, priced at S$1,267 found 3 days ago
Alaska Airlines
Wed, 10 Sep - Thu, 25 Sep
DCA
Washington
SIN
Singapore
S$1,286 Return, found 7 hours ago
S$1,286
Return
found 7 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep from Washington to Singapore, returning Thu, 25 Sep, priced at S$1,286 found 7 hours ago
Air Canada
Wed, 10 Sep - Thu, 25 Sep
DCA
Washington
SIN
Singapore
S$1,406 Return, found 7 hours ago
S$1,406
Return
found 7 hours ago
Select Air Canada flight, departing Wed, 10 Sep from Washington to Singapore, returning Thu, 25 Sep, priced at S$1,406 found 7 hours ago
Singapore Airlines
Wed, 10 Sep - Thu, 25 Sep
BWI
Baltimore
SIN
Singapore
S$1,433 Return, found 7 hours ago
S$1,433
Return
found 7 hours ago
Select Singapore Airlines flight, departing Wed, 10 Sep from Baltimore to Singapore, returning Thu, 25 Sep, priced at S$1,433 found 7 hours ago
Turkish Airlines
Thu, 25 Sep - Tue, 30 Sep
IAD
Washington
SIN
Singapore
S$1,470 Return, found 3 days ago
S$1,470
Return
found 3 days ago
Select Turkish Airlines flight, departing Thu, 25 Sep from Washington to Singapore, returning Tue, 30 Sep, priced at S$1,470 found 3 days ago
Delta
Thu, 14 Aug - Tue, 26 Aug
BWI
Baltimore
SIN
Singapore
S$1,523 Return, found 6 days ago
S$1,523
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Aug from Baltimore to Singapore, returning Tue, 26 Aug, priced at S$1,523 found 6 days ago
United
Thu, 21 Aug - Mon, 25 Aug
DCA
Washington
SIN
Singapore
S$1,551 Return, found 3 days ago
S$1,551
Return
found 3 days ago
Select United flight, departing Thu, 21 Aug from Washington to Singapore, returning Mon, 25 Aug, priced at S$1,551 found 3 days ago
Japan Airlines
Thu, 4 Sep - Thu, 18 Sep
DCA
Washington
SIN
Singapore
S$1,605 Return, found 5 hours ago
S$1,605
Return
found 5 hours ago
Select Japan Airlines flight, departing Thu, 4 Sep from Washington to Singapore, returning Thu, 18 Sep, priced at S$1,605 found 5 hours ago

Find the cheapest month to fly from Washington (WAS) to Singapore (SIN)

September is typically the cheapest month to fly

From S$1,025 - S$1,411 per traveller.

Graph displaying average flight prices per month

Washington to Singapore route information
Origin airport
Washington Dulles Intl.
Destination airport
Changi
Airlines serving
Air France, Air India, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Emirates, Ethiopian Airlines, Etihad Airways, Japan Airlines, KLM, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, United
Return price
S$1,149
Distance
15439 km

Flights from Maryland to Singapore

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