SIN - IAD

S$ 538 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 from Singapore to Dulles Intl departing on 27-11. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Washington, D.C..
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Cheap flight deals from Singapore to Washington Dulles Airport (SIN-IAD)

 
These are the cheapest deals for flights from Singapore to Dulles Intl currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Singapore to Dulles Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Singapore to Dulles Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
17:15 - 15:45SIN-IAD
34h 30m1 stop
19:10 - 15:45IAD-SIN
32h 35m1 stop
S$ 1,044SAUDIA
Find Deal
Fri, 11 Apr - Sat, 3 May
17:00 - 14:45SIN-IAD
34h 45m1 stop
18:10 - 15:30IAD-SIN
32h 20m2 stops
S$ 1,219SAUDIA
Find Deal
Fri, 17 Jan - Mon, 27 Jan
17:00 - 14:45SIN-IAD
34h 45m1 stop
21:30 - 16:10IAD-SIN
29h 40m2 stops
S$ 1,252
Find Deal
Mon, 10 Feb - Mon, 3 Mar
08:35 - 07:15SIN-IAD
34h 40m1 stop
11:15 - 08:10IAD-SIN
32h 55m1 stop
S$ 1,376Air India
Find Deal
Thu, 15 May - Tue, 20 May
23:00 - 07:15SIN-IAD
44h 15m1 stop
11:15 - 07:30IAD-SIN
32h 15m1 stop
S$ 1,411Air India
Find Deal
Fri, 28 Mar - Sat, 12 Apr
10:10 - 23:53SIN-IAD
25h 43m2 stops
22:07 - 06:40IAD-SIN
44h 33m2 stops
S$ 1,820United Airlines
Find Deal
Fri, 28 Mar - Sat, 12 Apr
02:15 - 16:10SIN-IAD
25h 55m1 stop
10:55 - 20:45IAD-SIN
21h 50m1 stop
S$ 1,848Qatar Airways
Find Deal
Thu, 10 Apr - Sat, 3 May
03:15 - 15:55SIN-IAD
25h 40m1 stop
10:35 - 21:15IAD-SIN
21h 40m1 stop
S$ 1,869Qatar Airways
Find Deal
Sat, 8 Feb - Fri, 14 Feb
06:35 - 20:20SIN-IAD
26h 45m2 stops
12:35 - 06:55IAD-SIN
29h 20m1 stop
S$ 6,618United Airlines
Find Deal
Sun, 9 Feb - Fri, 14 Feb
22:30 - 09:50SIN-IAD
24h 20m1 stop
11:50 - 00:10IAD-SIN
23h 20m1 stop
S$ 6,667Korean Air
Find Deal
Sun, 9 Feb - Fri, 14 Feb

Flights from Singapore to Dulles Intl - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Singapore to Washington Dulles Airport?

The average price of all flights from Singapore to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Friday and more expensive on a Thursday. On your return trip to Singapore, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from Singapore 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 from Singapore 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 from Singapore to Washington, D.C. Dulles Intl Airport is September, where tickets cost S$ 1,575 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is S$ 1,920 and S$ 1,899 respectively.

How far in advance should I book a flight from Singapore 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 from Singapore 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 on the flight from Singapore to Washington, D.C. Dulles Intl Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 17 days before departure.

Good to know

Low season

February

High season

June

Cheapest flight

S$ 538
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Singapore to Washington Dulles Airport

When to book flights from Singapore to Dulles Intl

Are your dates flexible? Find out the best times to travel from Singapore to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Singapore to Washington Dulles Airport flights

  • What is the cheapest flight from Singapore to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Singapore to Washington, D.C. Dulles Intl Airport was S$ 400 for a one-way ticket and S$ 777 for a return.

  • Which airports will I be using when flying from Singapore to Washington Dulles Airport?

    When flying out of Singapore you will be using Singapore Changi. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Singapore to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Washington Dulles Airport?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Singapore and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Singapore to Washington, D.C., Korean Air or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Singapore to Washington, D.C. are Korean Air and Qatar Airways. With an average price for the route of S$ 2,018 and an overall rating of 8.4, Korean Air is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of S$ 2,328 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Singapore 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 from Singapore to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore 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 from Singapore is likely to change within 7 days, so travellers know whether to wait or book now.

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

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore 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 from Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Singapore to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore 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.
8.4
Korean AirOverall score based on 1024 reviews
8.3Comfort
8.2Entertainment
8.1Food
8.5Boarding
8.7Crew
Airline reviews

I’ve always been impressed by the cleanliness of the toilets or, at least, its frequent monitoring, cleaning, and toiletry replacements. The in-flight service by flight attendants is superb.

10.0 ExcellentAnonymous, Nov 2024MNL - ICN
Read more Korean Air reviews

I’ve always been impressed by the cleanliness of the toilets or, at least, its frequent monitoring, cleaning, and toiletry replacements. The in-flight service by flight attendants is superb.

I won't hesitate to fly with Korean Air again and agian....if I can get a good deal.

Glad you had Bibimbap which tasted much better than mesh potato or pasta.

The flight attendants seemed to be a little more grumpy this time. A350s could use more toilet stalls.

Excellent service, love the extra amenities (water bottles, blankets, etc.).

It was horrible. The flight crew was unfriendly and the food was absolutely horrible.

It would be better if flight crew can clearly communicate in english. But they are kind and accommodating. Food is good, especially the sandwiches on the self-serving snack trays. They are better than the ones served. Boarding was organized.

Terrible experience will never fly Delta again. Delayed flight with total disorganization and inept crew who wouldn’t communicate.

Will try never to fly Delta international again. Flight delayed and staff completely inept in dealing with it. Would not communicate, rude, completely disorganized. Once we reached Seoul the staff there had no idea what to do with us and led us around the airport from one pointless line to another. They were clearly not told how to manage the situation even though they had hours to make a plan. Never again.

They texted me my gate number and then they texted me again it’s now boarding but in different gate, and the gate was so far from the gate they texted me earlier. I have to run just to get to my flight. They always do that.

Do not overbook flights and kick out confirmed ticketed passengers :-(

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

Do I need to repeat my complaints about my lost carry on bag?

Noice cancelling headphones would be better since it’s a crowded plane And kids behaviors are unavoidable

More facilities to transport to the gates......felt too much walking distance

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

It was good no problems made it on time for the next flight overseas!

It was a really long flight from Doha to Philadelphia and it was overall a good one. The one area that I would comment on is that there is a lot of single-use plastic and disposables in the meal service for American Airlines. It would be great to see more circular options in the meal service to reduce the amount of waste.

Suddenly Flight has been change by Qatar and there’s no information is there of us from Bom to Doha and counter person is behaving like Qatar owner next I will not buy Qatar and I will not suggest anyone to fly in Qatar

The crew was fantastic and the over flight was perfect as well.

Very poor show. Flight got delayed due to fog in Lahore. This is understandable. However, no arrangements were made for nany hours, once some things was organised, there was no leadership, no support to families with children's, disabled passengers. Took to hotel where it took 3 hours to sort out room allocation, that after finding partner to a minimum of 4 people. Couples were asked to find another couple before room is allocated. After 2 5 Hours of reaching room,return journey started with total chaos, no leadership at airport. Several derours to finally get new boarding passes. Asking the reason why flight was cancelled, the Saudi airline staff recommended using other Airlines in future.Finally boarding nobody inside the aeroplane helping old, illiterate to find their allocated sears. Sort out luggage storage. All the staff stayed in their kitchen areas to let passengers sort out. In-flight service wad good. Overall very poor experience.

It’s very tiring journey with only 3 seats in a row and not good for family of four. Online checkin don’t work and unable to select the seats while going.

Ok, the flight was not full yet I had people on both sided and the chairs were tight. Only 2 kinds of snacks didn’t even have milk for the coffee.

Economy seats are better than most other international airlines. Crew is nice, food is halal and pretty good. Seatback tv selection is ok, not great. Wifi is poor and crazy expensive, "free" messaging lasts 15 minutes and capped at 3mb, full flight plans are $50 USD and still very tightly data capped.

Make all food options available, than running out even before mid way through the service

Make the food options available, than running out even before mid way through the service.

Riyadh to Dhaka was disaster! Passengers were standing the whole flight blocking ways for using restrooms. Bathrooms were extremely dirty. Food quality was very poor. Overall Riyadh to Dhaka was extremely poor and bad experience.

There is issue with first name and every thing is correct, and they did not onboard, it was really bad experience I recommend not to buy ticket and support team is very poor ever though online support is very bad

Plane is very old and not the same seating as online No per seat entertainment The large shared tv wasn’t working Didn’t provide headphones No announcements of departures or arrival from captain or crew

The entertainment system on my seat didn’t work for the whole length of the flight, staff was not helpful. Horrible experience. Its so hard to go through a flight from LA to jeddah with no movies.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

ANA was great. United was horrible. They bumped us from economy plus to economy and were supposed to contact us for a refund but no luck. We booked the seats 9 months in advance.

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

Comfortable as it can be for a basic economy seat. The TV screen on my 15 hour international flight went out after 1 hour or so and it never worked again. The food is very high in processed carbs and sugary items.

A three (3) hour flight should have meal service in First Class, not just potato chips!

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Everything was perfect except the pad at the top of the seat back. It pushes my head forward into a very uncomfortable position and it is not removable.

Boarding in Paris was a nightmare for us. Why passengers have to get checked luggage tickets and then to go to counter to get luggage weight and send to the conveyor? We counted 14 security and airline checks before getting in the plane. We will never again use United or travel to France, neither stop by IAD airport.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

What a pathetic plane it was. Entertainment system didn’t work. USB port was broken. There was a hole on top of folding serving table. Broken restrooms in the middle of flight.

Our seat monitor did not Not work either way going to Vietnam. I had a bulkhead seat with plenty of room, but with No monitor, it was a long flight with no movies. Fun was good, staff was Excellent.

I will never ever book air india in the future. I was with my family and at delhi airport I had to go through too with horrible experience. My 12 years daughter saud that she will never come bqck to india the way people treated us. There was no line for bags drop off since we checked online and print tag at their Kiosk as per email instruction. People working at the counter were so careless and rude. They were keep talking to each other than taking care the customers. I will not recommend anyone to fly via air india. I had horrible experience. Especially, the staff at checking counters was very very rude and careless. I have feeling if air india won't change the way they doing their operations they will out of business in a few years. Air hostes were not happy . I did not see a smile on anyone in the plane. I called twice for the assistance and no one showed up. I hope you will sene this to the Hire authority. I left a video with an another employee of air india who asked me about my experiences. I hope they will make some changes ASAP. Regars, Mohinder Kumar

Food quality deteriorated after Tata aquired the airline. No alcoholic drinks till last meal on a long haul 15 hour flight. Entertaiment systems needs a complete overhaul.

only 3 meals in a 17 hr long flight. first meal after take off then nothing for 8hrs for people boarding at 2pm at orgin. you expect people to go without any food for 8 waking hours? there should have been 4 meals during a 17hr long flight. food quantity was also less. when asked for food the flight attended said they are about to begin food service then didnt do it for 2hours after saying that. terrible experience

Direct Connection is the biggest advantages. Aircrafts are now better but food and beverages could be better and served more often in a ultra long flight

Flies in the flight, broken seats, broken entertainment system and display - worst flight ever

We trusted KAYAK and Air India but no one is responds for the lost of baggage 🧳 2 (bags). My in laws are totally lost hope for this kind of situation to travel any more.

Very poor experience for the price paid. Airplane interior including seats were old and jaded. Seat tray table did not work properly. Head phone was defective and didn’t work. Food was mediocre

Communication was terrible. Flight was delayed for 4-5 hours in DC (on the front end, and also after we boarded, we had to get off - some issue with fueling the old plane correctly). There was little to no information on timing or what was happening. Once we reach Delhi airspace, apparently there was weather that caused us not to land - we were actually near the ground, saw the run way, and lifted back up to the sky after being sooo close. Then we circled for about 30 minutes, and they decided to go to Jaipur to land until the weather cleared and to refuel. Again, once we landed in Jaipur (wrong city), there was little to no information on timing or what was happening. Then we heard that the crew was reaching their 24 hours. We sat on the place, on the tarmac for another 3 HOURS, with no food and not enough water for everyone on the flight. Then, they kicked us off the plane with no plan, in the wrong city. We went thru customs, got our bags (thank goodness), and had to ask a bunch of staff what was happening and what to do. Eventually, their soltuion was to bus people back to Delhi (like 6 hours we were told) but not everyone would fit on the bus, and unknown timing on when it would leave. At this point it was 9PM (we were scheduled to arrive in Delhi at 11AM...). My husband and I decided to risk it and take a cab that we had to pay ourselves (about $200 US dollars) to get to Delhi (about 5 hour drive). We both had terrible trips back to the US as well - almost missed connecting flight, forced to pay for carry-on luggage (a small back pack!) and duty-free goods by the Air India staff last minute. Just terrible experience all around. Never again with AI! The ONLY good thing was the air hostesses were kind and patient - example: they made sure people with food allergies got their correct. However, the TV's did not work so I'm glad we brought our own entertainment.

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

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Singapore to Washington, D.C. found on KAYAK in the last 72 hours.
27-11Wed
1 stopSAUDIA
34h 45mSIN-IAD
S$ 538
24-3Mon
1 stopSAUDIA
34h 45mSIN-IAD
S$ 546
26-3Wed
1 stopSAUDIA
34h 45mSIN-IAD
S$ 555
12-4Sat
1 stopAir India
33h 45mSIN-IAD
S$ 982
9-2Sun
1 stopQatar Airways
25h 40mSIN-IAD
S$ 1,175
12-1Sun
2 stopsUnited Airlines
30h 54mSIN-IAD
S$ 1,254
12-1Sun
3 stopsUnited Airlines
35h 37mSIN-IAD
S$ 1,255
10-12Tue
1 stopQatar Airways
25h 40mSIN-IAD
S$ 1,713
5-1Sun
1 stopAir India
44h 50mSIN-IAD
S$ 1,923
7-1Tue
1 stopKorean Air
21h 20mSIN-IAD
S$ 4,331

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