SIN - IAD

S$ 664 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 15-2. 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.
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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..
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

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Cheap Flight Deals from Singapore to Washington Dulles Airport (SIN-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Singapore to Washington Dulles Airport that are departing in the next months. 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
10:25 - 19:30SIN-IAD
46h 05m1 stop
21:25 - 17:35IAD-SIN
31h 10m1 stop
S$ 1,342Turkish Airlines
Find Deal
Sun, 9 Feb - Thu, 13 Feb
17:00 - 14:45SIN-IAD
82h 45m1 stop
18:10 - 15:30IAD-SIN
80h 20m1 stop
S$ 1,420SAUDIA
Find Deal
Sat, 1 Feb - Thu, 13 Feb
22:20 - 11:49SIN-IAD
26h 29m2 stops
18:17 - 08:00IAD-SIN
24h 43m1 stop
S$ 1,546United Airlines
Find Deal
Sat, 1 Feb - Thu, 13 Feb
21:00 - 11:37SIN-IAD
26h 37m2 stops
12:15 - 06:40IAD-SIN
30h 25m1 stop
S$ 1,740United Airlines
Find Deal
Fri, 23 May - Thu, 3 Jul
01:10 - 11:15SIN-IAD
22h 05m1 stop
13:40 - 23:40IAD-SIN
22h 00m1 stop
S$ 1,848Korean Air
Find Deal
Thu, 22 May - Thu, 3 Jul
03:15 - 15:55SIN-IAD
25h 40m1 stop
20:05 - 21:15IAD-SIN
36h 10m1 stop
S$ 1,885Qatar Airways
Find Deal
Sat, 8 Feb - Thu, 13 Feb
03:15 - 15:55SIN-IAD
25h 40m1 stop
20:05 - 18:35IAD-SIN
33h 30m2 stops
S$ 2,060Qatar Airways
Find Deal
Fri, 31 Jan - Thu, 13 Feb
22:30 - 10:50SIN-IAD
24h 20m1 stop
13:25 - 23:40IAD-SIN
22h 15m1 stop
S$ 5,858Korean Air
Find Deal
Wed, 26 Mar - Mon, 5 May
08:20 - 07:15SIN-IAD
34h 55m1 stop
11:15 - 21:45IAD-SIN
22h 30m1 stop
S$ 7,389Air India
Find Deal
Fri, 16 May - Wed, 9 Jul
08:20 - 07:15SIN-IAD
34h 55m1 stop
11:15 - 21:45IAD-SIN
22h 30m1 stop
S$ 7,879Air India
Find Deal
Sat, 29 Mar - Fri, 11 Apr

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 round-trip 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 Tuesday. 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 round-trip 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$ 1,591 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is S$ 1,974 and S$ 1,916 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Singapore to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

February

High season

June

Cheapest flight

S$ 664
Best time to beat the crowds (8% 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$ 490 for a one-way ticket and S$ 990 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$ 2,036 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$ 2,329 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
8.5Boarding
8.3Comfort
8.1Food
8.2Entertainment
8.7Crew
Airline reviews

Thanks for fixing the title of this question... the flight was a DELTA one marketed as a Korean Air flight. Which automatically makes it worse. The crew were actually rude in several cases and clearly lacked cultural sensitivity to the majority of the passengers (Koreans). This flight was also a minor heart attack before it started. Firstly, I thought I was buying a flight from Kayak, but it turns out they just acted as a front for this other company, UnderPricer, which took almost 24 hours to send a proper confirmation of the flight. We could not select the seats at checkout time either. We later submitted our seat selection to Korean Air, who proceeded to mess up the instructions to Delta, so our family was separated on the flight and our aisle seat was replaced with another middle seat.

6.0 GoodAnonymous, Dec 2024ICN - ATL
Read more Korean Air reviews

Thanks for fixing the title of this question... the flight was a DELTA one marketed as a Korean Air flight. Which automatically makes it worse. The crew were actually rude in several cases and clearly lacked cultural sensitivity to the majority of the passengers (Koreans). This flight was also a minor heart attack before it started. Firstly, I thought I was buying a flight from Kayak, but it turns out they just acted as a front for this other company, UnderPricer, which took almost 24 hours to send a proper confirmation of the flight. We could not select the seats at checkout time either. We later submitted our seat selection to Korean Air, who proceeded to mess up the instructions to Delta, so our family was separated on the flight and our aisle seat was replaced with another middle seat.

It was a great experience in all aspects including passengers are respectful to each other. I will consider to fly with Korean Air again in the future.

It was a comfortable flight and the flight crew were lovely!

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.

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.

They had the same movie choice as my previous flight, not much of a choice, movies were not up to date, music was uninteresting. Other than sitting on the ground for 40 minutes after boarding the plane, with pilot telling us that they couldn't load the plane because of rain, (bullshit) We finally got into Bangkok of course 40 minutes late.

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

Seating is terrible, having seats so crammed is unacceptable for a 15-hour journey. I cannot stress enough how uncomfortable it is to sit in such an aircraft. Leg space is roomier in a domestic aircraft. I have not experienced this kind of crammy seating in domestic flights either in the US or other international airlines overseas.

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

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

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.

The ac did not work and the plane was deployed for the AC BUT IT NEVER WORKED. I have high blood pressure and I was SWEATING AND NEARLY PASSED OUT. Do better.

For me it was a good experience… thank you Turkish Airlines

Old aircraft, very very low business class standards, no privacy between the seats, horrible old TVs, tiny bathrooms.

Good service, the airline also provided a traveling kit bag (tooth brush, socks, slippers, visor for sleeping).

The seats have to be one of the worst when it comes to comfort and you have to scramble around to out your handbag in the overhead. The food is still awful. Definitely will not travel on Turkish again and wouldn’t recommend it to anyone for sure.

It was very good and it was not my first time I always take Turkish air line for my travels

Food excellent Bathrooms improve cleanliness needed Staff fairly well attentive Entertainment fair Seats lie flat worked well

My flight was cancelled with no warning! I had to find out right at the airport when I arrived from my previous flight!

Excellent service. Made United 's business class look like a cattle car

I have been flying Turkish Airlines for the last 5 years it’s always great service, on time , excellent food, only one thing wasn’t reliable is their on board WiFi most of the time it doesn’t work.

This was a bery good experience as it was a newer plane . AI older plane bussiness class is bad .

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

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.
15-2Sat
1 stopSAUDIA
34h 45mSIN-IAD
S$ 664
26-2Wed
2 stops
32h 50mSIN-IAD
S$ 810
15-4Tue
1 stopAir India
23h 10mSIN-IAD
S$ 976
12-4Sat
1 stopAir India
23h 10mSIN-IAD
S$ 984
9-3Sun
1 stopKorean Air
21h 20mSIN-IAD
S$ 1,043
2-2Sun
1 stopQatar Airways
25h 40mSIN-IAD
S$ 1,094
8-4Tue
1 stopKorean Air
22h 05mSIN-IAD
S$ 1,147
14-2Fri
1 stopQatar Airways
25h 40mSIN-IAD
S$ 1,166
30-3Sun
3 stopsUnited Airlines
31h 15mSIN-IAD
S$ 1,257
10-3Mon
3 stopsUnited Airlines
31h 06mSIN-IAD
S$ 1,551

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