S$ 701+ Cheap flights to Dulles Intl
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 30-6. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Dulles Intl in 2025
Find the latest flights to Dulles Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 13 June 2025.
Find flight deals to Dulles Intl Airport
Cheapest flights to Dulles Intl AirportExplore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 13 June 2025.
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 13 June 2025.
Cheapflights Fare Finder
Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 13 June 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Route
Depart
Return
Price
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Thu 26-6
08:45-00:30
2 stops27h 45m
Washington, D.C. Dulles Intl
Thu 3-7
12:20-06:40
1 stop30h 20m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Mon 14-7
22:10-10:05
1 stop23h 55m
Washington, D.C. Dulles Intl
Mon 21-7
15:39-06:40
2 stops27h 01m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sun 5-10
23:55-21:05
2 stops33h 10m
Washington, D.C. Dulles Intl
Sun 19-10
17:22-06:40
2 stops49h 18m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sun 5-10
10:15-11:45
1 stop37h 30m
Washington, D.C. Dulles Intl
Sat 18-10
21:40-17:55
1 stop32h 15m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Mon 17-11
23:55-18:30
1 stop31h 35m
Washington, D.C. Dulles Intl
Fri 12-12
22:00-17:30
2 stops30h 30m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sun 5-10
09:10-09:38
2 stops36h 28m
Washington, D.C. Dulles Intl
Sat 18-10
11:00-21:45
1 stop22h 45m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Wed 30-7
23:00-11:15
2 stops48h 15m
Washington, D.C. Dulles Intl
Fri 8-8
12:50-21:45
1 stop44h 55m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sat 4-10
01:55-22:48
2 stops32h 53m
Washington, D.C. Dulles Intl
Sat 18-10
06:45-06:10
2 stops35h 25m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sun 16-11
23:10-20:39
2 stops34h 29m
Washington, D.C. Dulles Intl
Mon 8-12
15:23-21:55
2 stops65h 32m
SingaporeWashington, D.C.
SIN - IAD
SINIAD
Singapore Changi
Sat 26-7
19:45-19:45
2 stops36h 00m
Washington, D.C. Dulles Intl
Sat 2-8
13:30-17:45
2 stops40h 15m
Best time to book a flight to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Washington, D.C. Dulles Intl Airport
When is the best time to book a flight to Dulles Intl?
Use this chart to determine the optimal time to book a return flight from Singapore to Dulles Intl. Price data was last updated on 9 June 2025.
The price you pay for your flight to Dulles Intl may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
How long is the flight to Dulles Intl?
On average, a flight from Singapore to Dulles Intl takes 27 hours 45 minutes. Flights to Dulles Intl from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.
What are the most popular airlines that fly to Dulles Intl?
The most popular airlines flying from Singapore to Dulles Intl are United Airlines, Qatar Airways and Turkish Airlines.
What are the cheapest airlines that fly to Dulles Intl?
The cheapest airlines flying from Singapore to Dulles Intl are SAUDIA, Turkish Airlines and Air India.
Rainfall in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Dulles Intl ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Dulles Intl when rainfall is around 66.0 mm.
Temperature in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Dulles Intl, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown EVA Air, Korean Air and China Airlines to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Dale,May 2025
TPE - SFO
FAQs about flying to Dulles Intl
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Cheapflights does show flights with no change fees to all users. To see these options for flights to Dulles Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights to Dulles Intl become cheaper?
Yes, Cheapflights offers price alerts on Dulles Intl flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.