S$ 150+ Cheap flights from Washington, D.C. Dulles Intl Airport
This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1-7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
What to know about flights from Dulles Intl
Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 June 2025.
Good one-way deal | S$ 122 or less |
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Find flights from Dulles Intl
Cheapest flights from Dulles IntlExplore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 12 June 2025.
Find flights from Dulles Intl within your budget
Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 June 2025. In the last 7 days, Cheapflights users made a total of 200,618 searches
Fly to
Route
Depart
Return
Price
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Mon 4-8
17:10-18:56
Nonstop1h 46m
Boston Logan Intl
Thu 7-8
05:30-07:04
Nonstop1h 34m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Tue 29-7
09:40-16:36
1 stop6h 56m
Boston Logan Intl
Thu 7-8
06:05-12:02
1 stop5h 57m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Fri 18-7
18:07-00:38
1 stop6h 31m
Boston Logan Intl
Mon 21-7
11:55-00:12
2 stops12h 17m
Washington, D.C.Cusco
IAD - CUZ
IADCUZ
Washington, D.C. Dulles Intl
Sun 7-9
17:25-09:00
2 stops16h 35m
Cusco Velazco Astete
Thu 18-9
04:15-00:07
2 stops18h 52m
Washington, D.C.Cusco
IAD - CUZ
IADCUZ
Washington, D.C. Dulles Intl
Tue 30-9
17:55-11:00
2 stops18h 05m
Cusco Velazco Astete
Fri 3-10
12:15-01:15
3 stops36h 00m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Wed 30-7
18:35-06:55
Nonstop7h 20m
London Heathrow
Mon 4-8
12:10-16:15
1 stop33h 05m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Mon 7-7
20:31-11:25
1 stop9h 54m
London Heathrow
Sat 9-8
12:55-19:51
1 stop11h 56m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Sun 12-10
17:25-21:40
1 stop23h 15m
London Heathrow
Fri 5-12
06:00-16:01
2 stops39h 01m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Fri 19-9
22:05-08:55
2 stops29h 50m
London Heathrow
Wed 24-9
07:05-19:59
2 stops17h 54m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Tue 9-9
22:40-11:05
Nonstop7h 25m
London Heathrow
Wed 17-9
14:25-17:30
Nonstop8h 05m
Best time to book a flight from Dulles Intl
Have a flexible travel schedule? Discover the best time to fly from Dulles Intl with our price prediction graph.
Travel insights for flights from Dulles Intl
Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.
When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a return flight from Dulles Intl to Singapore. Price data was last updated on 9 June 2025.
The price you pay for your flight from Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of S$ 1,028). Flying from Washington, D.C. Dulles Intl Airport in June will prove the most costly (average of S$ 1,481). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?
From Washington, D.C. Dulles Intl Airport you can expect to find greater availability for the following destinations: Chicago (388 flights per day), London (370 flights per day) and Atlanta (281 flights per day).
What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?
The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is San Francisco, with prices starting at S$ 305. Explore other affordable destinations below.
Airline reviews for flights from Dulles Intl
Get insights into the airlines that provide service from 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 airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 200,618 searches.
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Anonymous,May 2025
TPE - SEA
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Alternate flight departure points to Dulles Intl
Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 12 June 2025.
Related info for your journey
Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 June 2025.
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