$473+ 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
Jul 26 — Aug 21
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 June 26, 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 June 26, 2026.
This Gotogate deal was found by Cheapflights users on 6/25. 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 9/143:10 pm
IAD
- SIN
1 stop30h 30m
Multiple Airlines
Fri 9/189:00 am
SIN
- IAD
1 stop22h 30m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$1,020
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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.
Mon 10/193:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Thu 10/297:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 6/25![Etihad Airways logo]()
$1,035
This Justfly.com deal was found by Cheapflights users on 6/25. 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 10/202:55 pm
DCA
- SIN
2 stops57h 50m
Gulf Air
Thu 10/298:00 pm
SIN
- DCA
2 stops38h 57m
Gulf Air
Deal found 6/25![Gulf Air logo]()
$1,041
This oojo deal was found by Cheapflights users on 6/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Tue 9/229:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 6/24![Etihad Airways logo]()
$1,041
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sat 10/173:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Fri 10/307:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 6/25![Etihad Airways logo]()
$1,059
This FlightHub deal was found by Cheapflights users on 6/25. 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.
Tue 10/203:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Wed 10/287:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 6/25![Etihad Airways logo]()
$1,063
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 9/223:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Tue 10/69:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 6/25![Etihad Airways logo]()
$1,064
This Etihad Airways deal was found by Cheapflights users on 6/25. 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.
Mon 10/193:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Mon 10/267:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 6/25![Etihad Airways logo]()
$1,073
This CheapOair deal was found by Cheapflights users on 6/26. 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 CheapOair 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 9/35:55 pm
SIN
- IAD
1 stop37h 35m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,080
This FlightHub deal was found by Cheapflights users on 6/25. 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.
Sat 10/172:55 pm
DCA
- SIN
2 stops57h 50m
Gulf Air
Thu 10/298:00 pm
SIN
- DCA
2 stops38h 57m
Gulf Air
Deal found 6/25![Gulf Air logo]()
$1,089
This FlightHub deal was found by Cheapflights users on 6/22. 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.
Sat 10/172:55 pm
DCA
- SIN
2 stops57h 50m
Gulf Air
Thu 10/228:00 pm
SIN
- DCA
2 stops38h 57m
Gulf Air
Deal found 6/22![Gulf Air logo]()
$1,095
This oojo deal was found by Cheapflights users on 6/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Wed 9/239:00 pm
SIN
- IAD
1 stop24h 45m
Etihad Airways
Deal found 6/24![Etihad Airways logo]()
$1,101
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 June 26, 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 June 26, 2026.
This Korean Air deal was found by Cheapflights users on 6/22. 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
Tue 12/810:40 am
SIN
- IAD
1 stop36h 10m
Korean Air
Deal found 6/22![Korean Air logo]()
$1,154
This Delta deal was found by Cheapflights users on 6/25. 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.
Wed 8/57:10 am
IAD
- SIN
2 stops33h 50m
Delta
Wed 8/267:30 am
SIN
- IAD
2 stops29h 04m
Delta
Deal found 6/25![Delta logo]()
$1,165
This Qatar Airways deal was found by Cheapflights users on 6/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:05 pm
IAD
- SIN
1 stop23h 40m
Qatar Airways
Sun 11/159:20 pm
SIN
- IAD
2 stops31h 35m
Qatar Airways
Deal found 6/21![Qatar Airways logo]()
$1,323
This Emirates deal was found by Cheapflights users on 6/21. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:15 am
IAD
- SIN
2 stops60h 15m
Emirates
Fri 11/139:20 pm
SIN
- IAD
2 stops47h 50m
Emirates
Deal found 6/21![Emirates logo]()
$1,399
This EVA Air deal was found by Cheapflights users on 6/25. 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.
Sat 8/291:50 am
IAD
- SIN
1 stop24h 05m
EVA Air
Tue 9/13:20 pm
SIN
- IAD
1 stop42h 40m
EVA Air
Deal found 6/25![EVA Air logo]()
$1,466
This Finnair deal was found by Cheapflights users on 6/21. 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 10/317:06 pm
DCA
- SIN
2 stops35h 34m
Finnair
Sun 11/1510:05 pm
SIN
- DCA
2 stops35h 55m
Finnair
Deal found 6/21![Finnair logo]()
$1,526
This EVA Air deal was found by Cheapflights users on 6/22. 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 8/126:07 pm
BWI
- SIN
2 stops31h 48m
Multiple Airlines
Wed 8/193:20 pm
SIN
- BWI
2 stops33h 45m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,557
This British Airways deal was found by Cheapflights users on 6/21. 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 11/58:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Wed 11/1811:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 6/21![British Airways logo]()
$1,593
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/46:40 am
BWI
- SIN
1 stop23h 55m
United Airlines
Tue 8/258:35 pm
SIN
- BWI
2 stops27h 10m
United Airlines
Deal found 6/24![United Airlines logo]()
$1,942
This Delta deal was found by Cheapflights users on 6/24. 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.
Tue 8/41:30 pm
IAD
- SIN
1 stop27h 30m
Delta
Tue 8/2510:00 pm
SIN
- IAD
2 stops30h 42m
Delta
Deal found 6/24![Delta logo]()
$1,310
This Qatar Airways deal was found by Cheapflights users on 6/22. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:00 pm
IAD
- SIN
2 stops33h 15m
Qatar Airways
Wed 8/197:40 pm
SIN
- IAD
1 stop25h 05m
Qatar Airways
Deal found 6/22![Qatar Airways logo]()
$1,338
This Delta deal was found by Cheapflights users on 6/25. 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.
Mon 8/108:00 am
DCA
- SIN
2 stops33h 00m
Delta
Mon 8/1710:00 pm
SIN
- DCA
2 stops28h 53m
Delta
Deal found 6/25![Delta logo]()
$1,315
This Korean Air deal was found by Cheapflights users on 6/25. 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 8/96:00 am
IAD
- SIN
2 stops35h 00m
Korean Air
Fri 8/217:30 am
SIN
- IAD
2 stops25h 25m
Korean Air
Deal found 6/25![Korean Air logo]()
$1,509
This Finnair deal was found by Cheapflights users on 6/21. 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 10/311:52 pm
DCA
- SIN
2 stops40h 48m
Finnair
Tue 11/1710:05 pm
SIN
- DCA
2 stops35h 55m
Finnair
Deal found 6/21![Finnair logo]()
$1,526
This Delta deal was found by Cheapflights users on 6/25. 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.
Mon 8/1010:16 am
IAD
- SIN
2 stops30h 44m
Delta
Mon 8/1710:00 pm
SIN
- IAD
2 stops30h 42m
Delta
Deal found 6/25![Delta logo]()
$1,315
This British Airways deal was found by Cheapflights users on 6/21. 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.
Sat 10/319:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Mon 11/1611:05 pm
SIN
- BWI
1 stop32h 40m
British Airways
Deal found 6/21![British Airways logo]()
$1,593
This Finnair deal was found by Cheapflights users on 6/21. 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 10/311:52 pm
DCA
- SIN
2 stops40h 48m
Finnair
Thu 11/1910:05 pm
SIN
- DCA
2 stops35h 55m
Finnair
Deal found 6/21![Finnair logo]()
$1,526
This British Airways deal was found by Cheapflights users on 6/21. 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.
Sun 11/18:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Tue 11/1711:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 6/21![British Airways logo]()
$1,593
This Delta deal was found by Cheapflights users on 6/26. 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.
Wed 7/151:30 pm
IAD
- SIN
1 stop22h 25m
Delta
Tue 7/281:25 am
SIN
- IAD
2 stops27h 21m
Delta
Deal found 6/26![Delta logo]()
$1,327
This Singapore Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 9/55:00 pm
DCA
- SIN
2 stops25h 50m
Multiple Airlines
Sat 9/2612:10 pm
SIN
- DCA
1 stop33h 56m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,840
This Finnair deal was found by Cheapflights users on 6/21. 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.
Tue 11/312:59 pm
DCA
- SIN
2 stops40h 41m
Finnair
Wed 11/1810:05 pm
SIN
- DCA
2 stops35h 55m
Finnair
Deal found 6/21![Finnair logo]()
$1,526
This United Airlines deal was found by Cheapflights users on 6/26. 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 6/26![United Airlines logo]()
$1,942
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:12 pm
BWI
- SIN
3 stops47h 58m
Multiple Airlines
Mon 10/198:05 am
SIN
- BWI
2 stops45h 07m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,857
This Korean Air deal was found by Cheapflights users on 6/24. 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 7/165:00 pm
DCA
- SIN
2 stops38h 15m
Korean Air
Sun 8/210:00 pm
SIN
- DCA
2 stops35h 45m
Korean Air
Deal found 6/24![Korean Air logo]()
$1,878
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Thu 7/161:00 pm
DCA
- SIN
2 stops29h 15m
United Airlines
Mon 8/38:45 am
SIN
- DCA
1 stop25h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$1,942
This British Airways deal was found by Cheapflights users on 6/22. 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 10/218:17 pm
BWI
- SIN
2 stops31h 53m
British Airways
Fri 11/2011:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 6/22![British Airways logo]()
$1,778
This Delta deal was found by Cheapflights users on 6/24. 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.
Mon 7/207:37 pm
DCA
- SIN
2 stops40h 18m
Delta
Mon 8/37:30 am
SIN
- DCA
2 stops26h 15m
Delta
Deal found 6/24![Delta logo]()
$1,534
This United Airlines deal was found by Cheapflights users on 6/26. 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 6/26![United Airlines logo]()
$1,942
This Finnair deal was found by Cheapflights users on 6/22. 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.
Mon 12/211:08 pm
DCA
- SIN
2 stops40h 32m
Finnair
Wed 12/3010:05 pm
SIN
- DCA
2 stops36h 05m
Finnair
Deal found 6/22![Finnair logo]()
$1,906
This British Airways deal was found by Cheapflights users on 6/22. 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 12/238:35 pm
BWI
- SIN
1 stop30h 30m
British Airways
Tue 12/2911:15 pm
SIN
- BWI
1 stop32h 30m
British Airways
Deal found 6/22![British Airways logo]()
$1,924
Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated June 26, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/23. 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 6/309:04 am
IAD
- SIN
2 stops32h 11m
Air Canada
Wed 7/86:15 am
SIN
- IAD
2 stops36h 07m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,201
This Justfly.com deal was found by Cheapflights users on 6/23. 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 7/76:59 am
DCA
- SIN
2 stops34h 16m
Air Canada
Tue 7/287:00 am
SIN
- DCA
2 stops43h 59m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,184
This FlightHub deal was found by Cheapflights users on 6/24. 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.
Tue 7/78:18 am
IAD
- SIN
2 stops32h 57m
Air Canada
Tue 7/287:00 am
SIN
- IAD
2 stops26h 13m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,189
This FlightHub deal was found by Cheapflights users on 6/26. 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.
Tue 7/79:04 am
IAD
- SIN
2 stops32h 11m
Air Canada
Wed 7/1510:50 pm
SIN
- IAD
2 stops52h 34m
Air Canada
Deal found 6/26![Air Canada logo]()
$1,203
This Justfly.com deal was found by Cheapflights users on 6/23. 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 7/78:18 am
IAD
- SIN
2 stops32h 57m
Air Canada
Sun 7/1210:00 pm
SIN
- IAD
2 stops53h 24m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,206
This Delta deal was found by Cheapflights users on 6/26. 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.
Wed 7/86:00 am
IAD
- SIN
2 stops49h 15m
Delta
Sun 7/191:25 am
SIN
- IAD
2 stops34h 43m
Delta
Deal found 6/26![Delta logo]()
$1,182
This Air Canada deal was found by Cheapflights users on 6/25. 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 7/149:40 am
DCA
- SIN
2 stops31h 35m
Air Canada
Tue 8/47:00 am
SIN
- DCA
2 stops39h 18m
Air Canada
Deal found 6/25![Air Canada logo]()
$1,185
This Delta deal was found by Cheapflights users on 6/25. 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.
Tue 7/216:59 am
DCA
- SIN
2 stops28h 56m
Delta
Wed 8/197:30 am
SIN
- DCA
2 stops28h 18m
Delta
Deal found 6/25![Delta logo]()
$1,165
This Air Canada deal was found by Cheapflights users on 6/24. 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 7/219:04 am
IAD
- SIN
2 stops32h 11m
Air Canada
Wed 8/196:15 am
SIN
- IAD
2 stops40h 58m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,204
This FlightHub deal was found by Cheapflights users on 6/26. 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.
Wed 7/295:34 pm
IAD
- SIN
2 stops47h 41m
Air Canada
Tue 8/117:00 am
SIN
- IAD
2 stops44h 01m
Air Canada
Deal found 6/26![Air Canada logo]()
$1,195
This Korean Air deal was found by Cheapflights users on 6/25. 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 7/308:27 am
IAD
- SIN
2 stops27h 28m
Korean Air
Thu 8/277:30 am
SIN
- IAD
1 stop39h 45m
Korean Air
Deal found 6/25![Korean Air logo]()
$1,159
This Delta deal was found by Cheapflights users on 6/25. 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.
Thu 7/307:15 am
IAD
- SIN
2 stops28h 40m
Delta
Wed 8/267:30 am
SIN
- IAD
2 stops29h 04m
Delta
Deal found 6/25![Delta logo]()
$1,165
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 June 26, 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 June 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/24. 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 6/24![Etihad Airways logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 6/24![Multiple Airlines logo]()
$474
This Gotogate deal was found by Cheapflights users on 6/23. 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.
Tue 9/153:10 pm
IAD
- SIN
1 stop30h 30m
Etihad Airways
Deal found 6/23![Etihad Airways logo]()
$477
This IEagle deal was found by Cheapflights users on 6/25. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:30 pm
IAD
- SIN
1 stop27h 30m
Korean Air
Deal found 6/25![Korean Air logo]()
$497
This Flightnetwork deal was found by Cheapflights users on 6/24. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:30 pm
IAD
- SIN
1 stop27h 30m
Korean Air
Deal found 6/24![Korean Air logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 8/109:50 am
IAD
- SIN
2 stops45h 20m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 9/158:00 am
IAD
- SIN
2 stops33h 00m
Korean Air
Deal found 6/23![Korean Air logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 8/510:10 am
DCA
- SIN
2 stops30h 50m
Korean Air
Deal found 6/25![Korean Air logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/186:00 pm
DCA
- SIN
2 stops37h 10m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$508
This Korean Air deal was found by Cheapflights users on 6/26. 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.
Sat 11/711:50 am
IAD
- SIN
1 stop43h 35m
Korean Air
Deal found 6/26![Korean Air logo]()
$508
This Korean Air deal was found by Cheapflights users on 6/23. 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 9/158:00 am
DCA
- SIN
2 stops27h 55m
Korean Air
Deal found 6/23![Korean Air logo]()
$509
This Delta deal was found by Cheapflights users on 6/25. 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 7/196:30 am
DCA
- SIN
2 stops48h 45m
Delta
Deal found 6/25![Delta logo]()
$511
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 June 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,020 (Gotogate) |
One-way from | $473 (Cheapflightsfares) |
Popular in | December |
Cheapest in | August |
Average price | $1,538 |
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 June 26, 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
Tue 12/1
11:50 am-5:00 am
1 stop28h 10m
Singapore Changi
Tue 12/8
10:40 am-9:50 am
1 stop36h 10m
$1,154
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 8/5
7:10 am-5:00 am
2 stops33h 50m
Singapore Changi
Wed 8/26
7:30 am-12:34 am
2 stops29h 04m
$1,165
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Tue 8/4
1:30 pm-5:00 am
1 stop27h 30m
Singapore Changi
Tue 8/25
10:00 pm-4:42 pm
2 stops30h 42m
$1,310
Washington, D.C.Singapore
DCA - SIN
DCASIN
Washington, D.C. Reagan-National
Mon 8/10
8:00 am-5:00 am
2 stops33h 00m
Singapore Changi
Mon 8/17
10:00 pm-2:53 pm
2 stops28h 53m
$1,315
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Mon 8/10
10:16 am-5:00 am
2 stops30h 44m
Singapore Changi
Mon 8/17
10:00 pm-4:42 pm
2 stops30h 42m
$1,315
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 11/5
8:05 pm-8:45 am
1 stop23h 40m
Singapore Changi
Sun 11/15
9:20 pm-3:55 pm
2 stops31h 35m
$1,323
Quickest round-trip
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 7/15
1:30 pm-11:55 pm
1 stop22h 25m
Singapore Changi
Tue 7/28
1:25 am-4:46 pm
2 stops27h 21m
$1,327
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 8/12
9:00 pm-6:15 pm
2 stops33h 15m
Singapore Changi
Wed 8/19
7:40 pm-8:45 am
1 stop25h 05m
$1,338
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 10/30
11:15 am-11:30 am
2 stops60h 15m
Singapore Changi
Fri 11/13
9:20 pm-8:10 am
2 stops47h 50m
$1,399
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 8/29
1:50 am-1:55 pm
1 stop24h 05m
Singapore Changi
Tue 9/1
3:20 pm-10:00 pm
1 stop42h 40m
$1,466
Showing 1-10 of 58 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 $1,073). 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 June 26, 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.
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
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.
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.
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Alternative routes for Washington, D.C. to Singapore
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Complete your trip
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Search flights from Washington, D.C. to Singapore by cabin class
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Washington, D.C. and Singapore flights
Browse other Washington, D.C. and Singapore flight options. Last updated on June 26, 2026.
Popular flight searches
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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 June 26, 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$1,122 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,041 | Average$1,423 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,124 | Average$1,416 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,245 | Average$2,103 | FlexibilityNo cancel fee | On-time62% |