$478+ Cheap flights from Dulles Intl (IAD) to Singapore
This is the cheapest round-trip 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
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 September 9, 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 September 9, 2026.
This Gotogate deal was found by Cheapflights users on 9/8. 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 -
1 stop30h 30m
Mon 9/285:55 pm -
1 stop37h 35m
Deal found 9/8![Multiple Airlines logo]()
$947
This IEagle deal was found by Cheapflights users on 9/8. 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.
Mon 10/53:10 pm -
1 stop30h 30m
Mon 10/199:00 pm -
1 stop24h 45m
Deal found 9/8![Etihad Airways logo]()
$972
This IEagle deal was found by Cheapflights users on 9/9. 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.
Mon 10/123:10 pm -
1 stop30h 30m
Wed 10/219:00 pm -
1 stop24h 45m
Deal found 9/9![Etihad Airways logo]()
$974
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Fri 10/2311:00 pm -
1 stop29h 15m
Thu 10/2911:55 pm -
1 stop31h 35m
Deal found 9/9![Air China logo]()
$987
This IEagle deal was found by Cheapflights users on 9/8. 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.
Mon 10/53:10 pm -
1 stop30h 30m
Tue 10/139:00 pm -
1 stop24h 45m
Deal found 9/8![Etihad Airways logo]()
$991
This FlightHub deal was found by Cheapflights users on 9/9. 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 10/123:10 pm -
1 stop30h 30m
Tue 10/209:00 pm -
1 stop24h 45m
Deal found 9/9![Etihad Airways logo]()
$995
This FlightHub deal was found by Cheapflights users on 9/8. 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 9/167:00 am -
2 stops38h 05m
Thu 9/245:55 pm -
1 stop37h 35m
Deal found 9/8![Multiple Airlines logo]()
$1,008
This Gotogate deal was found by Cheapflights users on 9/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:03 am -
2 stops36h 02m
Thu 9/175:55 pm -
1 stop37h 35m
Deal found 9/7![Multiple Airlines logo]()
$1,012
This Booking.com deal was found by Cheapflights users on 9/8. 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 9/2411:05 am -
1 stop22h 10m
Mon 9/2811:25 pm -
1 stop32h 05m
Deal found 9/8![Multiple Airlines logo]()
$1,015
This Air Canada deal was found by Cheapflights users on 9/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:55 am -
2 stops32h 05m
Tue 11/248:40 am -
2 stops24h 43m
Deal found 9/5![Air Canada logo]()
$1,026
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 September 9, 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 September 9, 2026.
This Korean Air deal was found by Cheapflights users on 9/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:13 am -
2 stops27h 42m
Sun 12/610:30 am -
1 stop36h 20m
Deal found 9/6![Korean Air logo]()
$1,166
This Cathay Pacific deal was found by Cheapflights users on 9/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/86:00 am -
2 stops29h 20m
Mon 3/17:30 am -
2 stops34h 30m
Deal found 9/9![Multiple Airlines logo]()
$1,195
This Turkish Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 11/201:30 pm -
1 stop39h 10m
Wed 11/2511:35 am -
1 stop37h 10m
Deal found 9/9![Turkish Airlines logo]()
$1,209
This Qatar Airways deal was found by Cheapflights users on 9/9. 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 10/1511:05 am -
2 stops25h 05m
Thu 10/297:30 pm -
2 stops33h 25m
Deal found 9/9![Qatar Airways logo]()
$1,265
This Cathay Pacific deal was found by Cheapflights users on 9/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/15:50 pm -
2 stops30h 10m
Mon 3/82:05 pm -
2 stops27h 55m
Deal found 9/9![Cathay Pacific logo]()
$1,284
This British Airways deal was found by Cheapflights users on 9/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:45 pm -
1 stop29h 20m
Mon 1/411:15 pm -
1 stop33h 40m
Deal found 9/7![British Airways logo]()
$1,816
This Korean Air deal was found by Cheapflights users on 9/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:30 pm -
2 stops40h 45m
Wed 1/2010:30 pm -
1 stop24h 20m
Deal found 9/6![Korean Air logo]()
$1,166
This Cathay Pacific deal was found by Cheapflights users on 9/6. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am -
2 stops30h 45m
Mon 10/191:45 am -
2 stops39h 47m
Deal found 9/6![Multiple Airlines logo]()
$1,195
This Turkish Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 11/201:30 pm -
1 stop30h 15m
Sat 11/285:10 am -
1 stop27h 15m
Deal found 9/9![Turkish Airlines logo]()
$1,269
This Korean Air deal was found by Cheapflights users on 9/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:50 am -
1 stop28h 10m
Mon 11/231:40 am -
2 stops25h 14m
Deal found 9/5![Korean Air logo]()
$1,171
This Qatar Airways deal was found by Cheapflights users on 9/6. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/168:05 pm -
1 stop29h 50m
Sat 1/237:30 pm -
2 stops33h 25m
Deal found 9/6![Qatar Airways logo]()
$1,368
This Korean Air deal was found by Cheapflights users on 9/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/166:40 am -
2 stops28h 35m
Sat 1/301:40 am -
2 stops28h 50m
Deal found 9/6![Korean Air logo]()
$1,177
Last-minute flights from Dulles Intl to SingaporeDiscover last-minute flight deals from Dulles Intl to Singapore. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated September 9, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:03 am -
2 stops36h 02m
Thu 9/175:55 pm -
1 stop37h 35m
Deal found 9/7![Multiple Airlines logo]()
$1,012
This Gotogate deal was found by Cheapflights users on 9/8. 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 -
1 stop30h 30m
Mon 9/285:55 pm -
1 stop37h 35m
Deal found 9/8![Multiple Airlines logo]()
$947
This FlightHub deal was found by Cheapflights users on 9/8. 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 9/167:00 am -
2 stops38h 05m
Thu 9/245:55 pm -
1 stop37h 35m
Deal found 9/8![Multiple Airlines logo]()
$1,008
This Booking.com deal was found by Cheapflights users on 9/8. 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 9/2411:05 am -
1 stop22h 10m
Mon 9/2811:25 pm -
1 stop32h 05m
Deal found 9/8![Multiple Airlines logo]()
$1,015
This IEagle deal was found by Cheapflights users on 9/8. 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.
Mon 10/53:10 pm -
1 stop30h 30m
Mon 10/199:00 pm -
1 stop24h 45m
Deal found 9/8![Etihad Airways logo]()
$972
This IEagle deal was found by Cheapflights users on 9/8. 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.
Mon 10/53:10 pm -
1 stop30h 30m
Tue 10/139:00 pm -
1 stop24h 45m
Deal found 9/8![Etihad Airways logo]()
$991
This IEagle deal was found by Cheapflights users on 9/8. 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.
Thu 10/83:10 pm -
1 stop30h 30m
Thu 10/159:00 pm -
1 stop24h 45m
Deal found 9/8![Etihad Airways logo]()
$1,029
This IEagle deal was found by Cheapflights users on 9/9. 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.
Mon 10/123:10 pm -
1 stop30h 30m
Wed 10/219:00 pm -
1 stop24h 45m
Deal found 9/9![Etihad Airways logo]()
$974
This FlightHub deal was found by Cheapflights users on 9/9. 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 10/123:10 pm -
1 stop30h 30m
Tue 10/209:00 pm -
1 stop24h 45m
Deal found 9/9![Etihad Airways logo]()
$995
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Fri 10/2311:00 pm -
1 stop29h 15m
Thu 10/2911:55 pm -
1 stop31h 35m
Deal found 9/9![Air China logo]()
$987
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 September 9, 2026.
Search for one-way flight options from Dulles Intl to Singapore. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This IEagle deal was found by Cheapflights users on 9/8. 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.
Tue 9/153:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Etihad Airways logo]()
$478
This Mytrip deal was found by Cheapflights users on 9/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Etihad Airways logo]()
$490
This Mytrip deal was found by Cheapflights users on 9/8. 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.
Mon 10/123:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Etihad Airways logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/143:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Etihad Airways logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/165:30 pm -
1 stop35h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/125:30 pm -
1 stop35h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$512
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Etihad Airways logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/231:20 pm -
2 stops57h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/213:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Etihad Airways logo]()
$523
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Mon 10/123:10 pm -
2 stops28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$528
This Etihad Airways deal was found by Cheapflights users on 9/9. 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.
Tue 10/203:10 pm -
1 stop30h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Etihad Airways logo]()
$530
This FlightHub deal was found by Cheapflights users on 9/8. 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 9/159:03 am -
2 stops50h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$531
Find flight deals from Dulles Intl to Singapore
Keep the following information in mind while searching for Dulles Intl to Singapore flight deals. Data was last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $947 (Gotogate) |
One-way from | $478 (IEagle) |
Popular in | December |
Cheapest in | February |
Average price | $1,317 |
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 7,457,451 searches. Data last updated September 9, 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 Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Thu 10/15
3:10 pm-9:40 am
1 stop30h 30m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$478
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Tue 10/20
3:10 pm-9:40 am
1 stop30h 30m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$530
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Tue 11/3
2:35 pm-9:35 am
1 stop30h 00m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$530
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Thu 10/15
3:10 pm-7:45 am
2 stops28h 35m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$556
Quickest round-trip
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Wed 11/4
10:30 am-9:15 pm
1 stop21h 45m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$576
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Thu 9/17
3:10 pm-8:45 pm
2 stops41h 35m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$588
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Wed 2/24
6:10 am-11:50 am
2 stops40h 40m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$599
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Fri 9/25
10:19 pm-5:15 am
2 stops66h 56m
Singapore Changi
Wed 12/31
12:00 am-11:30 am
Nonstop0h 00m
$600
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Thu 10/22
8:13 am-11:55 pm
2 stops27h 42m
Singapore Changi
Sun 12/6
10:30 am-9:50 am
1 stop36h 20m
$1,166
Washington, D.C.Singapore
IAD Washington, D.C. Dulles Intl - SIN Singapore Changi
IADSIN
Washington, D.C. Dulles Intl
Sun 1/10
6:30 pm-12:15 am
2 stops40h 45m
Singapore Changi
Wed 1/20
10:30 pm-9:50 am
1 stop24h 20m
$1,166
Showing 1-10 of 20 resultsSorted by cheapest first
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
IAD-SG0
IAD-SIN
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 $1,069). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,975). 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. Dulles Intl Airport to Singapore?
Booking 66 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.
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 September 9, 2026.
See what other customers who have flown with Korean Air,Qatar Airways, andTurkish Airlines from Washington, D.C. Dulles Intl Airport to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
Overall
8.4
Entertainment
8.2
Food
8.1
Comfort
8.3
Crew
8.7
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentWalter,Jul 2026
LAX - BKK
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
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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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$915 | Average$1,075 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$938 | Average$1,144 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,039 | Average$1,203 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,069 | Average$1,279 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,124 | Average$1,548 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,298 | Average$2,079 | FlexibilityNo cancel fee | On-time62% |