S$ 96+ Cheap flights from Washington, D.C.

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 5-2. 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.
WAS — SIN
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Washington, D.C.

Discover essential information about flights departing from Washington, D.C., including flight schedules, destinations, airlines operating at the Washington, D.C. 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 14 November 2025.

Good round-trip deal

S$ 179 or less

Good one-way deal

S$ 185 or less
Price to beat on a round-trip flight from Washington, D.C..
Price to beat on a one-way flight from Washington, D.C..

Find flights from Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C.
Explore the most affordable flight options available from Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 14 November 2025.

Tue 13-122:12IAD - BOS
Nonstop1h 37mUnited Airlines
Wed 21-119:07BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 10-11S$ 178
Thu 25-1222:17IAD - BOS
Nonstop1h 37mUnited Airlines
Sat 3-109:30BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 11-11S$ 185
Thu 18-1212:43IAD - BOS
Nonstop1h 37mUnited Airlines
Sun 21-1205:20BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 11-11S$ 189
Fri 12-1222:06IAD - BOS
Nonstop1h 35mUnited Airlines
Sun 14-1205:30BOS - IAD
Nonstop1h 44mUnited Airlines
Deal found 12-11S$ 191
Wed 31-1217:10IAD - BOS
Nonstop1h 38mUnited Airlines
Sat 3-105:20BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 13-11S$ 192
Thu 1-122:17IAD - BOS
Nonstop1h 37mUnited Airlines
Mon 5-119:44BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 13-11S$ 198
Fri 19-1222:17IAD - BOS
Nonstop1h 37mUnited Airlines
Mon 22-1205:20BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 11-11S$ 202
Wed 3-1206:00IAD - BOS
1 stop4h 56mUnited Airlines
Wed 3-1219:07BOS - IAD
Nonstop1h 47mUnited Airlines
Deal found 12-11S$ 204
Tue 2-1222:06IAD - BOS
Nonstop1h 35mUnited Airlines
Sat 6-1205:30BOS - IAD
Nonstop1h 44mUnited Airlines
Deal found 11-11S$ 212
Tue 30-1222:17IAD - BOS
Nonstop1h 37mUnited Airlines
Mon 5-116:31BOS - IAD
1 stop4h 23mUnited Airlines
Deal found 12-11S$ 215
Wed 24-1222:17IAD - BOS
Nonstop1h 37mUnited Airlines
Thu 25-1209:30BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 10-11S$ 216
Thu 25-1207:55DCA - CMH
Nonstop1h 20mSouthwest
Thu 1-117:50CMH - DCA
Nonstop1h 15mSouthwest
Deal found 11-11S$ 261

Find flights from Washington, D.C. within your budget

 
Find flights departing from Washington, D.C. 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 14 November 2025. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 28-1

12:40-14:17

Nonstop1h 37m

Boston Logan Intl

Thu 29-1

14:20-16:06

Nonstop1h 46m

S$ 185

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 4-12

12:51-14:29

Nonstop1h 38m

Boston Logan Intl

Fri 5-12

19:07-20:54

Nonstop1h 47m

S$ 191

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 12-12

22:06-23:41

Nonstop1h 35m

Boston Logan Intl

Sun 14-12

05:30-07:14

Nonstop1h 44m

S$ 191

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sun 7-12

09:00-10:38

Nonstop1h 38m

Boston Logan Intl

Wed 10-12

05:30-07:14

Nonstop1h 44m

S$ 191

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 31-12

17:10-18:48

Nonstop1h 38m

Boston Logan Intl

Sat 3-1

05:20-07:06

Nonstop1h 46m

S$ 192

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 1-1

22:17-23:54

Nonstop1h 37m

Boston Logan Intl

Mon 5-1

14:15-16:01

Nonstop1h 46m

S$ 198

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 11-12

08:45-12:33

1 stop3h 48m

Boston Logan Intl

Sun 14-12

05:30-07:14

Nonstop1h 44m

S$ 204

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 13-12

17:10-18:48

Nonstop1h 38m

Boston Logan Intl

Tue 16-12

12:02-16:30

1 stop4h 28m

S$ 204

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 13-3

22:12-23:48

Nonstop1h 36m

Boston Logan Intl

Sun 15-3

05:45-07:29

Nonstop1h 44m

S$ 217

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 13-12

17:10-18:48

Nonstop1h 38m

Boston Logan Intl

Sun 4-1

05:20-07:06

Nonstop1h 46m

S$ 225

Flights are sorted by cheapest return flights first.

Deals found on 13-11

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Best time to book a flight from Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly from Washington, D.C. with our price prediction graph.
Estimated return 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.

Travel insights for flights from Washington, D.C.

Get recent, data-driven insights about flights from Washington, D.C. including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Singapore. Price data was last updated on 7 November 2025.

The price you pay for your flight from Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 81 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.?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. (average of S$ 1,063). Flying from Washington, D.C. in June will prove the most costly (average of S$ 1,485). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Related info for your journey

Access useful and relevant information related to your journey from Washington, D.C.. 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 14 November 2025.
  • What are the most popular destinations to fly to from Washington, D.C.?

    This month, the top selected destinations from Washington, D.C. are Boston, Atlanta, Mumbai. Throughout the year, Boston, Atlanta, Athens are some of the top choices made by users flying from Washington, D.C..

  • What is the cheapest airport to fly out of Washington, D.C.?

    The cheapest routes to Singapore can be found at Washington, D.C. Dulles Intl airport from S$ 1,109. While Washington, D.C. Reagan-National airport is usually cheaper if your destination is Singapore with prices starting at S$ 1,242. Reference our flight search to find the best deals in real time.

  • What is the cheapest month to fly from Washington, D.C.?

    Currently, the cheapest month for flights from Washington, D.C. is January. The most expensive month for flights is June. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Washington, D.C.?

    View the cheapest flight destinations from Washington, D.C.:
    Fly from Washington, D.C. to Singapore from S$ 1,109 round trip

  • How does Cheapflights help users find flights from Washington, D.C.?

    Deals for flights from Washington, D.C. are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from Washington, D.C.?

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C..

  • Can Cheapflights find flights from Washington, D.C. with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C., users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from Washington, D.C. become cheaper?

    Of course! You can now track prices for flights from Washington, D.C. and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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How does Cheapflights help users find flights from Washington, D.C.?

Deals for flights from Washington, D.C. are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Washington, D.C. become cheaper?

Of course! You can now track prices for flights from Washington, D.C. and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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