$464+ Cheap flights from Washington, D.C. (WAS) to Singapore
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
Aug 6 — Aug 131
Round-trip
1 adult, Economy
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Cheapest flights from Washington, D.C. to SingaporeExplore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.
Explore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.
This lastminute.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Mon 9/711:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$994
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Fri 9/189:00 am
SIN
- IAD
1 stop22h 30m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$996
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Thu 10/111:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,011
This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Fri 10/29:00 am
SIN
- IAD
1 stop22h 30m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,019
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Thu 9/105:55 pm
SIN
- IAD
1 stop37h 35m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,021
This Cheapflightsfares deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Fri 11/207:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 7/3![Etihad Airways logo]()
$1,035
This Vliegwinkel deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Mon 9/79:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,051
This Gotogate deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Thu 9/311:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,060
This Cheapflightsfares deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Tue 9/229:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,065
This Air Canada deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:40 am
DCA
- SIN
2 stops31h 35m
Air Canada
Thu 8/207:00 am
SIN
- DCA
2 stops39h 18m
Air Canada
Deal found 7/6![Air Canada logo]()
$1,103
This Air Canada deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:40 am
DCA
- SIN
2 stops31h 35m
Air Canada
Tue 8/257:00 am
SIN
- DCA
2 stops26h 48m
Air Canada
Deal found 7/7![Air Canada logo]()
$1,104
This Justfly.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:40 pm
DCA
- SIN
2 stops28h 35m
Air Canada
Tue 8/257:00 am
SIN
- DCA
2 stops26h 48m
Air Canada
Deal found 7/2![Air Canada logo]()
$1,110
Best flights from Washington, D.C. to SingaporeDiscover carefully curated flight deals from Washington, D.C. to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 7, 2026.
Discover carefully curated flight deals from Washington, D.C. to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 7, 2026.
This Turkish Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:45 pm
IAD
- SIN
1 stop32h 10m
Turkish Airlines
Thu 10/810:25 am
SIN
- IAD
1 stop45h 25m
Turkish Airlines
Deal found 7/6![Turkish Airlines logo]()
$1,138
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:50 am
IAD
- SIN
1 stop28h 10m
Korean Air
Mon 12/2110:30 pm
SIN
- IAD
1 stop24h 20m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,154
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:05 am
DCA
- SIN
2 stops34h 55m
Delta
Sat 8/297:30 am
SIN
- DCA
2 stops25h 03m
Delta
Deal found 7/2![Delta logo]()
$1,165
This Finnair deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 am
DCA
- SIN
2 stops42h 31m
Finnair
Tue 9/299:35 pm
SIN
- DCA
2 stops35h 45m
Finnair
Deal found 7/6![Finnair logo]()
$1,567
This British Airways deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:35 pm
BWI
- SIN
1 stop32h 50m
British Airways
Tue 12/2211:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 7/2![British Airways logo]()
$1,593
This EVA Air deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:10 pm
BWI
- SIN
2 stops27h 45m
Multiple Airlines
Wed 8/263:20 pm
SIN
- BWI
3 stops32h 25m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,727
This Singapore Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:44 pm
BWI
- SIN
1 stop25h 56m
Singapore Airlines
Mon 9/79:25 am
SIN
- BWI
2 stops43h 10m
Singapore Airlines
Deal found 7/4![Singapore Airlines logo]()
$1,833
This KLM deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:40 pm
BWI
- SIN
2 stops31h 35m
KLM
Sun 11/81:45 am
SIN
- BWI
2 stops28h 18m
KLM
Deal found 7/6![KLM logo]()
$1,882
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:38 am
BWI
- SIN
1 stop23h 57m
United Airlines
Tue 8/188:35 pm
SIN
- BWI
2 stops27h 10m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,942
This Turkish Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:20 pm
IAD
- SIN
1 stop40h 35m
Turkish Airlines
Thu 9/2410:25 am
SIN
- IAD
1 stop37h 10m
Turkish Airlines
Deal found 7/4![Turkish Airlines logo]()
$1,138
This Korean Air deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:30 pm
IAD
- SIN
1 stop27h 30m
Korean Air
Sat 10/310:00 pm
SIN
- IAD
1 stop25h 05m
Korean Air
Deal found 7/4![Korean Air logo]()
$1,154
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:10 am
DCA
- SIN
2 stops34h 50m
Delta
Mon 9/77:30 am
SIN
- DCA
2 stops28h 18m
Delta
Deal found 7/2![Delta logo]()
$1,165
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:50 am
IAD
- SIN
1 stop43h 35m
Korean Air
Fri 12/181:35 am
SIN
- IAD
1 stop21h 15m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,154
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:50 am
IAD
- SIN
1 stop43h 35m
Korean Air
Mon 12/2110:40 am
SIN
- IAD
1 stop36h 10m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,154
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:00 am
DCA
- SIN
2 stops29h 55m
Delta
Sat 7/2510:00 pm
SIN
- DCA
2 stops31h 30m
Delta
Deal found 7/3![Delta logo]()
$1,314
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:50 am
IAD
- SIN
1 stop28h 10m
Korean Air
Fri 12/2510:40 am
SIN
- IAD
1 stop36h 10m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,154
This Finnair deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 am
DCA
- SIN
2 stops42h 31m
Finnair
Sat 9/269:35 pm
SIN
- DCA
2 stops35h 45m
Finnair
Deal found 7/6![Finnair logo]()
$1,567
This Korean Air deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am
IAD
- SIN
2 stops33h 00m
Korean Air
Wed 9/231:25 am
SIN
- IAD
1 stop21h 40m
Korean Air
Deal found 7/4![Korean Air logo]()
$1,159
This British Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Fri 12/2511:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 7/6![British Airways logo]()
$1,704
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:30 pm
IAD
- SIN
2 stops42h 55m
Korean Air
Fri 12/181:35 am
SIN
- IAD
1 stop21h 15m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,159
This British Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Fri 12/2511:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 7/6![British Airways logo]()
$1,704
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:38 am
BWI
- SIN
1 stop23h 57m
United Airlines
Mon 8/108:35 pm
SIN
- BWI
1 stop22h 35m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,942
This Korean Air deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:28 am
IAD
- SIN
2 stops27h 27m
Korean Air
Sat 8/2910:00 pm
SIN
- IAD
1 stop25h 15m
Korean Air
Deal found 7/3![Korean Air logo]()
$1,159
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:00 pm
DCA
- SIN
2 stops29h 15m
United Airlines
Mon 8/108:45 am
SIN
- DCA
1 stop25h 45m
United Airlines
Deal found 7/5![United Airlines logo]()
$1,942
This British Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:30 pm
BWI
- SIN
1 stop30h 35m
British Airways
Tue 9/2910:40 pm
SIN
- BWI
1 stop30h 35m
British Airways
Deal found 7/6![British Airways logo]()
$1,814
This Korean Air deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:40 am
DCA
- SIN
2 stops27h 15m
Korean Air
Sun 12/131:35 am
SIN
- DCA
2 stops29h 30m
Korean Air
Deal found 7/2![Korean Air logo]()
$1,170
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:59 pm
DCA
- SIN
2 stops29h 16m
United Airlines
Tue 8/188:45 am
SIN
- DCA
1 stop25h 45m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,942
This British Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:30 pm
BWI
- SIN
1 stop33h 10m
British Airways
Mon 9/146:15 pm
SIN
- BWI
2 stops35h 00m
British Airways
Deal found 7/6![British Airways logo]()
$1,924
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:59 pm
DCA
- SIN
1 stop24h 16m
United Airlines
Wed 8/198:45 am
SIN
- DCA
1 stop25h 45m
United Airlines
Deal found 7/2![United Airlines logo]()
$1,942
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:00 pm
DCA
- SIN
2 stops29h 15m
United Airlines
Tue 8/258:45 am
SIN
- DCA
1 stop25h 45m
United Airlines
Deal found 7/5![United Airlines logo]()
$1,942
Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated July 7, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated July 7, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:40 am
DCA
- SIN
2 stops31h 35m
Air Canada
Tue 8/257:00 am
SIN
- DCA
2 stops26h 48m
Air Canada
Deal found 7/7![Air Canada logo]()
$1,104
This Air Canada deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:40 am
DCA
- SIN
2 stops31h 35m
Air Canada
Thu 8/207:00 am
SIN
- DCA
2 stops39h 18m
Air Canada
Deal found 7/6![Air Canada logo]()
$1,103
This Justfly.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:40 pm
DCA
- SIN
2 stops28h 35m
Air Canada
Tue 8/257:00 am
SIN
- DCA
2 stops26h 48m
Air Canada
Deal found 7/2![Air Canada logo]()
$1,110
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Thu 10/111:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,011
This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Fri 10/29:00 am
SIN
- IAD
1 stop22h 30m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,019
This Justfly.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:00 pm
IAD
- SIN
1 stop29h 25m
Air China
Thu 9/311:25 pm
SIN
- IAD
1 stop32h 05m
Air China
Deal found 7/5![Air China logo]()
$1,078
This Cheapflightsfares deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Fri 11/207:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 7/3![Etihad Airways logo]()
$1,035
This lastminute.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Mon 9/711:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$994
This Vliegwinkel deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Mon 9/79:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,051
This Gotogate deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Thu 9/311:25 pm
SIN
- IAD
1 stop32h 05m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,060
This Etihad Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Thu 10/19:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 7/6![Etihad Airways logo]()
$1,073
This Cheapflightsfares deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Tue 9/229:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 7/4![Etihad Airways logo]()
$1,065
One-way flights from Washington, D.C. to SingaporeSearch for one-way flight options from Washington, D.C. to Singapore. Find affordable one-way fares based on user searches. Data last updated July 7, 2026.
Search for one-way flight options from Washington, D.C. to Singapore. Find affordable one-way fares based on user searches. Data last updated July 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:13 am
IAD
- SIN
2 stops45h 57m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$464
This Cheapflightsfares deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Deal found 7/5![Etihad Airways logo]()
$473
This Mytrip deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Deal found 7/5![Etihad Airways logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Deal found 7/5![Etihad Airways logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:50 am
IAD
- SIN
2 stops45h 20m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:59 am
IAD
- SIN
2 stops46h 11m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:26 am
DCA
- SIN
2 stops27h 54m
American Airlines
Deal found 7/7![American Airlines logo]()
$511
This Cheapflightsfares deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Deal found 7/3![Etihad Airways logo]()
$511
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:59 am
DCA
- SIN
2 stops29h 21m
American Airlines
Deal found 7/4![American Airlines logo]()
$513
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:50 am
IAD
- SIN
2 stops45h 20m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$513
This FlightHub deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:07 pm
BWI
- SIN
2 stops26h 58m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 pm
DCA
- SIN
2 stops37h 10m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$522
Find flight deals from Washington, D.C. to Singapore
Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated July 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $994 (lastminute.com) |
One-way from | $464 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,247 |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated July 7, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 9/28
9:45 pm-5:55 pm
1 stop32h 10m
Singapore Changi
Thu 10/8
10:25 am-7:50 pm
1 stop45h 25m
$1,138
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 9/10
1:20 pm-5:55 pm
1 stop40h 35m
Singapore Changi
Thu 9/24
10:25 am-11:35 am
1 stop37h 10m
$1,138
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Tue 12/1
11:50 am-5:00 am
1 stop28h 10m
Singapore Changi
Mon 12/21
10:30 pm-9:50 am
1 stop24h 20m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 8/19
1:30 pm-5:00 am
1 stop27h 30m
Singapore Changi
Sat 10/3
10:00 pm-11:05 am
1 stop25h 05m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 12/2
11:50 am-8:25 pm
1 stop43h 35m
Singapore Changi
Fri 12/18
1:35 am-9:50 am
1 stop21h 15m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sun 11/29
11:50 am-8:25 pm
1 stop43h 35m
Singapore Changi
Mon 12/21
10:40 am-9:50 am
1 stop36h 10m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 12/2
11:50 am-5:00 am
1 stop28h 10m
Singapore Changi
Fri 12/25
10:40 am-9:50 am
1 stop36h 10m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 9/10
8:00 am-5:00 am
2 stops33h 00m
Singapore Changi
Wed 9/23
1:25 am-11:05 am
1 stop21h 40m
$1,159
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 11/30
12:30 pm-8:25 pm
2 stops42h 55m
Singapore Changi
Fri 12/18
1:35 am-9:50 am
1 stop21h 15m
$1,159
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 8/21
8:28 am-11:55 pm
2 stops27h 27m
Singapore Changi
Sat 8/29
10:00 pm-11:15 am
1 stop25h 15m
$1,159
Showing 1-10 of 59 resultsSorted by cheapest first
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.
IAD-SIN
DCA-SIN
BWI-SIN
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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to Singapore
WAS-SG0
IAD-SIN
DCA-SIN
BWI-SIN
What is the cheapest month to book a flight from Washington, D.C. to Singapore?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $343). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,087). 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.
How far ahead should I book a flight from Washington, D.C. to Singapore?
To ensure you get the cheapest price possible for a flight from Washington, D.C. to Singapore, you should look to book at least 85 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.
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 July 7, 2026.
Read reviews from past customers who have flown Turkish Airlines,United Airlines, andQatar Airways from Washington, D.C. to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Comfort
7.3
Food
7.5
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
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.
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Alternative routes for Washington, D.C. to Singapore
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Complete your trip
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Washington, D.C. and Singapore flights
Browse other Washington, D.C. and Singapore flight options. Last updated on July 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington, D.C. to Singapore flights
Consider these flights traveling from Washington, D.C. to Singapore.
Top 6 airlines flying from Washington, D.C. to Singapore
Discover the top 6 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 2,558,603 searches. Data last updated July 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$743 | Average$1,328 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$828 | Average$990 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$939 | Average$1,125 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,041 | Average$1,423 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,124 | Average$1,401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,245 | Average$2,103 | FlexibilityNo cancel fee | On-time62% |