$454 Find Cheap Flights from Washington Dulles Airport to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Singapore departing on 5/15. 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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Best Singapore Flight Deals from Dulles Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stop$829

Cheap Flight Deals from Dulles Intl to Singapore (IAD-SG0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Singapore 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 round-trip flight deals from Dulles Intl to Singapore

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Singapore.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
11:00 pm - 9:55 pmIAD-SIN
34h 55m1 stop
11:25 pm - 7:30 pmSIN-IAD
32h 05m1 stop
$829Air China
Find Deal
Tue, Apr 22 - Mon, Apr 28
10:05 pm - 9:40 amIAD-SIN
23h 35m1 stop
9:10 pm - 4:10 pmSIN-IAD
31h 00m1 stop
$882Etihad Airways
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Sun, Apr 20 - Sun, May 4
9:40 pm - 8:45 amIAD-SIN
23h 05m1 stop
10:15 am - 7:45 pmSIN-IAD
45h 30m1 stop
$891Turkish Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 30
9:40 pm - 8:45 amIAD-SIN
23h 05m1 stop
10:15 am - 11:45 amSIN-IAD
37h 30m1 stop
$912Turkish Airlines
Find Deal
Tue, Apr 22 - Thu, May 1
9:00 pm - 3:45 pmIAD-SIN
30h 45m1 stop
3:10 am - 3:40 pmSIN-IAD
24h 30m1 stop
$1,010Qatar Airways
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Thu, Sep 18 - Sun, Sep 28
9:00 pm - 9:00 amIAD-SIN
24h 00m1 stop
10:30 am - 3:40 pmSIN-IAD
41h 10m1 stop
$1,013Qatar Airways
Find Deal
Thu, Apr 17 - Mon, Apr 28
9:00 pm - 9:00 amIAD-SIN
24h 00m1 stop
3:10 am - 3:40 pmSIN-IAD
24h 30m1 stop
$1,067JetBlue
Find Deal
Sun, Apr 20 - Sat, May 3
9:00 pm - 9:00 amIAD-SIN
24h 00m1 stop
3:10 am - 3:40 pmSIN-IAD
24h 30m1 stop
$1,114JetBlue
Find Deal
Tue, Apr 22 - Sun, Apr 27
8:30 am - 6:45 amIAD-SIN
34h 15m1 stop
9:00 am - 1:09 amSIN-IAD
28h 09m1 stop
$1,193United Airlines
Find Deal
Mon, Apr 14 - Mon, Apr 21
12:55 pm - 6:45 amIAD-SIN
29h 50m2 stops
9:00 am - 1:09 amSIN-IAD
28h 09m1 stop
$1,197United Airlines
Find Deal
Mon, Apr 14 - Mon, Apr 21

KAYAK's insights & trends for Dulles Intl to Singapore flights

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

What is the cheapest time of day to fly to Singapore?

The average price for all round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Singapore is generally in the afternoon, when round-trip flights cost $1,135 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Singapore is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,510.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore, 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 Washington, D.C. Dulles Intl Airport to Singapore is November, when tickets cost $1,001 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,787 and $1,642 respectively.

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

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore clicked on KAYAK for each day over the last 12 months.
When flying from Washington Dulles Airport to Singapore, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore, 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 Washington, D.C. Dulles Intl Airport to Singapore, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low season

August

High season

December

Cheapest flight

$454
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 41% increase in price.
Flight from Washington Dulles Airport to Singapore

FAQs - booking Singapore flights

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

    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 Washington Dulles Airport to Singapore.

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

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

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

    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 from Washington Dulles Airport to Singapore 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 from Washington Dulles Airport to Singapore?

    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 from Washington Dulles Airport to 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 Dulles Intl to Singapore

Need help choosing which airline to fly with from Dulles Intl to Singapore? 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 1050 reviews
8.7Crew
8.5Boarding
8.3Comfort
8.1Food
8.2Entertainment
Airline reviews

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

8.0 ExcellentAnonymous, Mar 2025JFK - JAX
Read more Korean Air reviews

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

everything was fine, would have liked better food but it was warm, great choices for movies

The carry on baggage was collected before boarding without further information where the passengers can collect them . When the flight arrived at Tan son Nhat airport, it was very complicate to find the luggage

Unlimited drinks and snacks on this long flight. Very courteous Korean staff !!!

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Compared with other carriers business class for an overnight was not worth the extra expense.

Seats were comfortable. It’s was so cold and very uncomfortable. I paid 2000 miles for wifi service that was choppy the whole flight. Would like to be reimbursed for my miles Food was so disappointing. Three cold and terrible meals for $3000 round trip. This needs to be better.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Excellent, professional, actually on time which is rare for late flights. Decent food. I love the new neck pillows! Nice, simple upgrade from the old ones I wasn't sure where to put. I wish they would allow more time for rest. It's a red eye 7 hour flight and meal service was about 3 hours.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

UA28 was good service and meals. UA is upgraded, I would like to book for next flight by UA Thanks Liao

Liked nothing. As per previous segment it was delay delay delay.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Seats are not clean inside the very dirty and need to improve

Professional & courteous cabin crew. Food was very good even in economy class

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

Good experience but the snacks are not gluten free, so I cannot eat them.

Standard. No different than a discount carrier on a short trip.

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