$472+ Cheap flights from Dulles Intl (IAD) to Singapore (SIN)
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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Cheapest flights from Dulles Intl to SingaporeExplore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
This oojo 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 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 6/23![Etihad Airways logo]()
$1,071
This CheapOair 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 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 6/24![Multiple Airlines logo]()
$1,083
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
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 8/48:18 am
IAD
- SIN
2 stops32h 57m
Air Canada
Tue 8/257:00 am
SIN
- IAD
2 stops36h 43m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,107
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:20 pm
IAD
- SIN
1 stop33h 50m
Turkish Airlines
Tue 10/135:25 am
SIN
- IAD
1 stop26h 25m
Turkish Airlines
Deal found 6/22![Turkish Airlines logo]()
$1,109
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:45 pm
IAD
- SIN
1 stop23h 00m
Turkish Airlines
Wed 9/211:10 am
SIN
- IAD
1 stop36h 25m
Turkish Airlines
Deal found 6/24![Turkish Airlines logo]()
$1,110
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:20 pm
IAD
- SIN
1 stop21h 25m
Turkish Airlines
Wed 11/411:35 am
SIN
- IAD
1 stop38h 10m
Turkish Airlines
Deal found 6/23![Turkish Airlines logo]()
$1,111
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:20 pm
IAD
- SIN
1 stop40h 35m
Turkish Airlines
Fri 10/2310:25 am
SIN
- IAD
1 stop37h 10m
Turkish Airlines
Deal found 6/23![Turkish Airlines logo]()
$1,114
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:30 pm
IAD
- SIN
1 stop41h 45m
Korean Air
Mon 8/317:30 am
SIN
- IAD
1 stop39h 35m
Korean Air
Deal found 6/24![Korean Air logo]()
$1,115
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.
Wed 9/99:07 am
IAD
- SIN
2 stops56h 08m
Air Canada
Wed 9/238:10 am
SIN
- IAD
2 stops42h 50m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,117
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.
Mon 11/92:35 pm
IAD
- SIN
1 stop30h 00m
Etihad Airways
Fri 11/207:25 pm
SIN
- IAD
1 stop26h 40m
Etihad Airways
Deal found 6/24![Etihad Airways logo]()
$1,127
Best flights from Dulles Intl to SingaporeDiscover carefully curated flight deals from Dulles Intl to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
Discover carefully curated flight deals from Dulles Intl to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:10 pm
IAD
- SIN
1 stop32h 55m
SWISS
Thu 11/1212:05 am
SIN
- IAD
2 stops27h 25m
SWISS
Deal found 6/21![SWISS logo]()
$1,286
This Qatar Airways deal was found by Cheapflights users on 6/20. 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.
Fri 9/259:00 pm
IAD
- SIN
1 stop23h 50m
Qatar Airways
Tue 9/293:15 am
SIN
- IAD
1 stop24h 25m
Qatar Airways
Deal found 6/20![Qatar Airways logo]()
$1,429
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:15 am
IAD
- SIN
2 stops28h 40m
Delta
Thu 7/231:25 am
SIN
- IAD
2 stops34h 43m
Delta
Deal found 6/23![Delta logo]()
$1,464
This CheapOair deal was found by Cheapflights users on 6/19. 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.
Wed 7/2910:20 pm
IAD
- SIN
1 stop30h 15m
Lufthansa
Mon 8/1010:45 pm
SIN
- IAD
2 stops28h 10m
Lufthansa
Deal found 6/19![Lufthansa logo]()
$1,547
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.
Sun 8/308:28 am
IAD
- SIN
2 stops27h 27m
Korean Air
Tue 9/110:00 pm
SIN
- IAD
1 stop25h 05m
Korean Air
Deal found 6/23![Korean Air logo]()
$1,703
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.
Sun 12/206:20 pm
IAD
- SIN
1 stop32h 45m
British Airways
Sun 12/2711:15 pm
SIN
- IAD
1 stop29h 20m
British Airways
Deal found 6/22![British Airways logo]()
$1,924
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:10 pm
IAD
- SIN
2 stops34h 55m
SWISS
Tue 11/1012:05 am
SIN
- IAD
2 stops28h 00m
SWISS
Deal found 6/21![SWISS logo]()
$1,310
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:30 pm
IAD
- SIN
1 stop41h 45m
Delta
Sun 8/1610:00 pm
SIN
- IAD
2 stops38h 34m
Delta
Deal found 6/23![Delta logo]()
$1,488
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 8/611:05 am
IAD
- SIN
1 stop22h 10m
Qatar Airways
Fri 8/144:35 pm
SIN
- IAD
2 stops28h 10m
Qatar Airways
Deal found 6/21![Qatar Airways logo]()
$1,651
This Delta deal was found by Cheapflights users on 6/20. 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 8/127:10 am
IAD
- SIN
2 stops28h 45m
Delta
Fri 8/217:30 am
SIN
- IAD
2 stops25h 25m
Delta
Deal found 6/20![Delta logo]()
$1,745
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.
Fri 12/189:45 pm
IAD
- SIN
1 stop29h 20m
British Airways
Sun 12/2711:15 pm
SIN
- IAD
1 stop33h 40m
British Airways
Deal found 6/22![British Airways logo]()
$1,924
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.
Sun 12/209:45 pm
IAD
- SIN
1 stop31h 40m
British Airways
Mon 12/2811:15 pm
SIN
- IAD
1 stop29h 20m
British Airways
Deal found 6/22![British Airways logo]()
$1,924
Last-minute flights from Dulles Intl to SingaporeDiscover last-minute flight deals from Dulles Intl to Singapore. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated June 24, 2026 and is based on user searches.
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2310:31 am
IAD
- SIN
2 stops30h 44m
Air Canada
Tue 7/77:00 am
SIN
- IAD
2 stops50h 21m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,194
This Air Canada deal was found by Cheapflights users on 6/19. 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.
Sat 6/2710:14 pm
IAD
- SIN
2 stops43h 01m
Air Canada
Sun 7/510:00 pm
SIN
- IAD
2 stops34h 24m
Air Canada
Deal found 6/19![Air Canada logo]()
$1,253
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.
Sat 6/2710:20 pm
IAD
- SIN
2 stops42h 55m
Air Canada
Mon 8/1710:50 pm
SIN
- IAD
2 stops52h 11m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,254
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 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 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 FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/153:45 pm
IAD
- SIN
2 stops65h 45m
Air Canada
Wed 7/296:15 am
SIN
- IAD
2 stops44h 46m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,214
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:05 am
IAD
- SIN
1 stop22h 10m
Qatar Airways
Thu 7/303:15 am
SIN
- IAD
1 stop41h 30m
Qatar Airways
Deal found 6/22![Qatar Airways logo]()
$1,212
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:10 pm
IAD
- SIN
2 stops43h 05m
Air Canada
Mon 7/276:15 am
SIN
- IAD
2 stops45h 58m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,209
This FlightHub 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 FlightHub 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 6/23![Air Canada logo]()
$1,204
This Justfly.com deal was found by Cheapflights users on 6/20. 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.
Fri 7/2410:14 pm
IAD
- SIN
2 stops67h 01m
Air Canada
Mon 8/246:15 am
SIN
- IAD
2 stops40h 58m
Air Canada
Deal found 6/20![Air Canada logo]()
$1,250
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.
Wed 7/295:34 pm
IAD
- SIN
2 stops47h 41m
Air Canada
Mon 8/106:15 am
SIN
- IAD
2 stops40h 58m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,208
One-way flights from Dulles Intl to SingaporeSearch for one-way flight options from Dulles Intl to Singapore. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
Search for one-way flight options from Dulles Intl to Singapore. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This oojo deal was found by Cheapflights users on 6/20. 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
Deal found 6/20![Etihad Airways logo]()
$472
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 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 6/23. 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 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.
Sat 11/711:50 am
IAD
- SIN
1 stop43h 35m
Korean Air
Deal found 6/24![Korean Air logo]()
$508
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.
Thu 7/167:00 am
IAD
- SIN
2 stops48h 15m
Delta
Deal found 6/24![Delta logo]()
$511
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.
Sun 7/196:00 am
IAD
- SIN
2 stops29h 55m
Korean Air
Deal found 6/24![Korean Air logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/219:50 am
IAD
- SIN
3 stops47h 40m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$537
This Trip.com deal was found by Cheapflights users on 6/20. 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 9/223:10 pm
IAD
- SIN
2 stops28h 30m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$543
Find flight deals from Dulles Intl to Singapore
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,071 (oojo) |
One-way from | $472 (oojo) |
Popular in | December |
Cheapest in | April |
Average price | $1,653 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl 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 24, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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
Sat 10/31
9:10 pm-6:05 pm
1 stop32h 55m
Singapore Changi
Thu 11/12
12:05 am-2:30 pm
2 stops27h 25m
$1,286
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sat 10/31
7:10 pm-6:05 pm
2 stops34h 55m
Singapore Changi
Tue 11/10
12:05 am-3:05 pm
2 stops28h 00m
$1,310
Quickest round-trip
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Fri 9/25
9:00 pm-8:50 am
1 stop23h 50m
Singapore Changi
Tue 9/29
3:15 am-3:40 pm
1 stop24h 25m
$1,429
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 7/9
7:15 am-11:55 pm
2 stops28h 40m
Singapore Changi
Thu 7/23
1:25 am-12:08 am
2 stops34h 43m
$1,464
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 8/13
1:30 pm-7:15 pm
1 stop41h 45m
Singapore Changi
Sun 8/16
10:00 pm-12:34 am
2 stops38h 34m
$1,488
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 7/29
10:20 pm-4:35 pm
1 stop30h 15m
Singapore Changi
Mon 8/10
10:45 pm-2:55 pm
2 stops28h 10m
$1,547
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Thu 8/6
11:05 am-9:15 pm
1 stop22h 10m
Singapore Changi
Fri 8/14
4:35 pm-8:45 am
2 stops28h 10m
$1,651
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sun 8/30
8:28 am-11:55 pm
2 stops27h 27m
Singapore Changi
Tue 9/1
10:00 pm-11:05 am
1 stop25h 05m
$1,703
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Wed 8/12
7:10 am-11:55 pm
2 stops28h 45m
Singapore Changi
Fri 8/21
7:30 am-8:55 pm
2 stops25h 25m
$1,745
Washington, D.C.Singapore
IAD - SIN
IADSIN
Washington, D.C. Dulles Intl
Sun 12/20
6:20 pm-4:05 pm
1 stop32h 45m
Singapore Changi
Sun 12/27
11:15 pm-3:35 pm
1 stop29h 20m
$1,924
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to Singapore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Singapore in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Singapore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Singapore
Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl with our price prediction graph.
IAD-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. Dulles Intl Airport to Singapore
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,010). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,931). 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 much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?
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 24, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines,United Airlines, andQatar Airways from Washington, D.C. Dulles Intl Airport to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Crew
7.8
Entertainment
7.5
Comfort
7.3
Boarding
7.3
Food
7.5
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 Dulles Intl 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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Dulles Intl and Singapore flights
Browse other Dulles Intl and Singapore flight options. Last updated on June 24, 2026.
Other flights from Dulles Intl
Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on June 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Singapore
Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 24, 2026.
Top 6 airlines flying from Dulles Intl to Singapore
Discover the top 6 airlines that operate flights from Dulles Intl 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 24, 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$1,404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,245 | Average$2,103 | FlexibilityNo cancel fee | On-time62% |