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$488 Find cheap flights from Singapore to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 10/21. 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.
1 adult
0 bags
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Flights to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends for flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Washington, D.C.?

The average price of all flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Friday where tickets can be as cheap as $1,268. On the other hand, the most expensive day to fly is Monday, where prices are $1,588 on average.

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Washington, D.C. Dulles Intl Airport is November, where tickets cost $1,098 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Singapore is $1,655 and $1,643 respectively. For return trips, the best month to travel is November with an average price of $1,098.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The average price for all flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when flights cost $1,173 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally at night, which is peak travel time and where the average cost of a ticket is $1,472.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 77 days before departure.

How long is the flight to Washington, D.C. Dulles Intl Airport?

The duration of your flight to Washington, D.C. depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Washington, D.C. on KAYAK is from Singapore, which takes 25h 50m.

How many direct flights to Washington, D.C. Dulles Intl Airport are there each day?

There are around 383 direct flights from within Singapore to Washington, D.C. Dulles Intl Airport every day. Most flights depart in the morning, with 2:00 pm the most common departure time and 47% of flights departing in the morning.

How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

Each week there are around 2,679 direct flights from within Singapore to Washington, D.C. Dulles Intl Airport. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Good to know

Low season

February

High season

December

Cheapest flight

$488
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Singapore to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How far is Washington Dulles Airport from central Washington, D.C.?

    Central Washington, D.C. is 22 miles away from Washington Dulles Airport.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to Washington, D.C. Dulles Intl Airport?

    Of the 8 airlines that fly to Washington, D.C. Dulles Intl Airport, United Airlines offers the most flights, with around 2,136 per week, followed by Delta with 216 flights per week.

See more FAQs

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Prefer to fly non-stop to Washington, D.C. Dulles Intl?

Find which airlines fly direct to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Singapore to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Singapore

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights
See more direct flights

Top airlines flying from Singapore to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11043 reviews
7.7Boarding
6.7Food
7.1Entertainment
7.2Comfort
8.1Crew
Airline reviews

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

2.0 MediocreTed, May 2024STT - IAD
Read more about United Airlines reviews

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

Book cheap flights from Singapore to Washington, D.C.

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Washington, D.C. found on KAYAK in the last 72 hours.
10/21Mon
1 stopSAUDIA
34h 30mSIN-IAD
12/3Tue
1 stopSAUDIA
55h 20mIAD-SIN
$1,026
9/14Sat
1 stopSAUDIA
82h 30mSIN-IAD
9/22Sun
1 stopSAUDIA
56h 35mIAD-SIN
$1,090
10/22Tue
1 stopUnited Airlines
40h 30mSIN-IAD
12/2Mon
2 stopsUnited Airlines
33h 09mIAD-SIN
$1,112
9/14Sat
2 stopsUnited Airlines
29h 44mSIN-IAD
9/22Sun
1 stopUnited Airlines
30h 15mIAD-SIN
$1,127
10/21Mon
1 stopTurkish Airlines
32h 30mSIN-IAD
12/2Mon
1 stopTurkish Airlines
22h 10mIAD-SIN
$1,137
10/16Wed
1 stopTurkish Airlines
32h 30mSIN-IAD
10/20Sun
1 stopTurkish Airlines
22h 55mIAD-SIN
$1,162
5/26Sun
1 stop
28h 30mSIN-IAD
6/10Mon
1 stop
35h 10mIAD-SIN
$1,203
10/21Mon
2 stops
27h 54mSIN-IAD
12/3Tue
2 stops
34h 56mIAD-SIN
$1,230
10/16Wed
2 stopsBritish Airways
36h 27mSIN-IAD
10/20Sun
1 stopBritish Airways
29h 15mIAD-SIN
$1,330
10/16Wed
2 stopsBritish Airways
28h 35mSIN-IAD
10/20Sun
1 stopBritish Airways
30h 55mIAD-SIN
$1,332

Search by stops

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington, D.C. found on KAYAK in the last 72 hours.
10/21Mon
1 stopSAUDIA
34h 30mSIN-IAD
$488
5/13Mon
2 stops
30h 25mSIN-IAD
$678
6/7Fri
2 stops
34h 35mSIN-IAD
$702
5/13Mon
3 stops
43h 10mSIN-IAD
$739
6/4Tue
2 stopsIndiGo
36h 10mSIN-IAD
$790
10/21Mon
2 stopsEmirates
49h 10mSIN-IAD
$822
6/7Fri
1 stopSWISS
28h 40mSIN-IAD
$841
6/4Tue
1 stopSWISS
28h 40mSIN-IAD
$851
8/22Thu
1 stopUnited Airlines
28h 12mSIN-IAD
$982
8/22Thu
2 stopsUnited Airlines
24h 37mSIN-IAD
$1,041

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Last minute flights to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington, D.C. that are departing in the next 10 days.
5/9Thu
multi-stop
27h 20mSIN-IAD
6/5Wed
multi-stop
35h 10mIAD-SIN
$1,223
5/9Thu
multi-stopAustrian Airlines
29h 45mSIN-IAD
6/5Wed
multi-stopAustrian Airlines
38h 05mIAD-SIN
$1,299
5/9Thu
multi-stopLufthansa
26h 35mSIN-IAD
6/5Wed
multi-stopLufthansa
30h 15mIAD-SIN
$1,303

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Flights to Washington Dulles Airport

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Singapore

Cabin classes: