$399 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Singapore departing on 11/8. 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
1 adult, Economy

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Cheap Flights from Washington, D.C. to Singapore

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore1 stop$916
Singapore
Singapore1 stop$916

Book Cheap Washington, D.C. to Singapore Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Singapore

Tue, Nov 4 - Thu, Nov 13
Multiple Airlines Logo
6:58 pm - 7:05 pmDCA-SIN
35h 07m1 stop
Multiple Airlines Logo
9:00 am - 9:59 pmSIN-DCA
25h 59m1 stop
$916Multiple Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 25
IndiGo Logo
9:40 pm - 5:15 pmIAD-SIN
31h 35m2 stops
IndiGo Logo
7:45 pm - 8:15 pmSIN-IAD
36h 30m2 stops
$922IndiGo
Find Deal
Wed, Nov 12 - Wed, Nov 19
Turkish Airlines Logo
1:30 pm - 5:35 pmIAD-SIN
39h 05m1 stop
Turkish Airlines Logo
11:25 pm - 7:15 pmSIN-IAD
32h 50m1 stop
$1,035Turkish Airlines
Find Deal
Mon, Oct 20 - Sat, Nov 1
Etihad Airways Logo
10:05 pm - 9:40 amIAD-SIN
23h 35m1 stop
Etihad Airways Logo
7:25 pm - 4:50 pmSIN-IAD
33h 25m1 stop
$1,039Etihad Airways
Find Deal
Sun, Nov 2 - Wed, Dec 17
Turkish Airlines Logo
1:30 pm - 8:45 amIAD-SIN
30h 15m1 stop
Turkish Airlines Logo
11:40 am - 7:20 pmSIN-IAD
44h 40m1 stop
$1,054Turkish Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 20
Etihad Airways Logo
10:05 pm - 9:40 amIAD-SIN
23h 35m1 stop
Etihad Airways Logo
9:10 pm - 4:10 pmSIN-IAD
31h 00m1 stop
$1,085Etihad Airways
Find Deal
Tue, Jan 20 - Thu, Jan 29
Qatar Airways Logo
8:05 pm - 8:45 amIAD-SIN
23h 40m1 stop
Qatar Airways Logo
3:15 am - 3:55 pmSIN-IAD
25h 40m1 stop
$1,102Qatar Airways
Find Deal
Thu, Oct 30 - Wed, Nov 5
Qatar Airways Logo
9:05 pm - 2:55 pmIAD-SIN
29h 50m1 stop
Qatar Airways Logo
3:15 am - 3:55 pmSIN-IAD
25h 40m1 stop
$1,103Qatar Airways
Find Deal
Tue, Nov 4 - Thu, Nov 13
United Airlines Logo
3:30 pm - 8:00 amDCA-SIN
27h 30m2 stops
United Airlines Logo
10:10 am - 9:43 pmSIN-DCA
24h 33m1 stop
$1,120United Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 10
United Airlines Logo
7:00 am - 8:15 pmDCA-SIN
25h 15m1 stop
United Airlines Logo
10:20 pm - 11:29 amSIN-DCA
26h 09m2 stops
$1,125United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Singapore flights

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

What is the cheapest month to fly from Washington, D.C. 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. 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. to Singapore is August, when tickets cost $732 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,817 and $1,412 respectively.

What’s the cheapest day of the week to fly from Washington, D.C. to Singapore?

The average price of all round-trip flights from Washington, D.C. to Singapore clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Singapore on a Friday and more expensive on a Saturday. On your return trip to Washington, D.C., you should consider flying back on a Saturday, and avoid Mondays for better deals.

How far in advance should I book a flight from Washington, D.C. 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. 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. to Singapore, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$399
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 54% increase in price.
Flight from Baltimore to Singapore

FAQs - booking Singapore flights

  • Do I need to get a visa before I fly to Singapore?

    While you will need a passport that is valid for at least six months beyond the date of your intended duration of stay in Singapore, there is no need to get a visa so long as you plan on traveling as a tourist one business purposes for visits that last no more than 90 days. If you were traveling for any other purpose or you plan on staying in the country for longer than 90 days, you should visit the website at the Embassy of Singapore to get the most up-to-date visa information.

  • What are some things I should know about car child seat laws in Singapore before I depart from my arrival airport in Singapore?

    When transporting a child in a vehicle in Singapore, those under nine months old must use a rear-facing car seat, transitioning to a forward-facing seat until the age of four. Children up to six years old should travel in a booster seat, and those up to eight years old require a booster cushion for safe travel.

  • What are the primary differences between the three major airports in the Washington, D.C., area?

    Ronald Reagan Washington National Airport is the smallest and primarily handles domestic and short-haul international flights. Washington Dulles International Airport is a major international hub, offering a diverse range of domestic and international flights. Baltimore/Washington International Thurgood Marshall Airport is known for its mix of domestic and international flights, particularly with a focus on low-cost carriers.

  • What are reasons to upgrade to business class on United Airlines?

    Upgrading to Business Class on United Airlines elevates your travel experience with benefits such as spacious seating, enhanced comfort with lie-flat beds, gourmet dining options, and priority boarding. Enjoy exclusive lounges, attentive service from dedicated staff, increased baggage allowance, and superior in-flight entertainment, making your journey more luxurious and seamless.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Singapore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. 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, D.C. 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, D.C. 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, D.C. 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, D.C. to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    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.

Top tips for finding cheap flights to Singapore

  • One of the most popular airport destinations in Singapore is Singapore Changi Airport (SIN). One way to get there from Washington, D.C., is to travel on a one-stop flight aboard ANA from Washington Dulles International Airport (IAD) with a layover at Haneda Airport (HND). Emirates Airlines also provide a one-stop flight with layover at Dubai.
  • If you are going to be departing from Baltimore Washington International Airport (BWI), a great way to get to the Singapore Changi Airport is to take a one-stop flight utilizing Condor and Lufthansa with a layover at Frankfurt Am Main International Airport (FRA).
  • If you plan on traveling early in the morning from Washington Dulles International Airport, you might consider staying at the Washington Dulles Airport Marriott, which sits right on the airport property and offers a shuttle to the terminal.
  • If your departure flight is from Ronald Reagan Washington National Airport (DCA) aboard American Airlines, you will be happy to know that this airline offers three of their lounge locations inside of Terminals C, D, and E.
  • For those that want to travel from the Ronald Reagan Washington National Airport to Singapore, there is a one-stop flight utilizing United Airlines in Singapore airlines that has a layover at Newark International Airport before arriving at Singapore Changi Airport.

Reviews of the top 5 airlines serving from Washington, D.C. to Singapore

 
Need help choosing which airline to fly with from Washington, D.C. 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 1140 reviews
8.5Boarding
8.2Entertainment
8.7Crew
8.3Comfort
8.1Food
Airline reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

I was not given basinett seat.The connecting flight was missed due to airline fault i was not accomodated for hotel.Drinks were normt served frewuently.Never travelling again on tirkish airlines.I always travel wiyh family by turkish airline but no more.zero stars

The crew were very hospitable and pleasant. The food was pretty good. Unfortunately, there was a flight delay of more than 2 hours. We're not sure why but it appeared to be outside the control of Turkish Airlines.

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

Never can get flight and nof light for three days .finally travel by bus. Very bad experience.

Food not of any international or even Indian standard. We have many cuisine available but only paneer & sundry items. Improve & provide some good indian items. Entertainment website or channel out of order.

First and the foremost I was shocked to see airindia standards have come down so low . The food was horrible . They served us 3 meals for vegetarian and all the was paneer . The orange juice was not at all cold it was smelly . After you take this heavy price air India should learn from other air lines . I at one point felt like throwing up . After all this when we landed we were not given landing slip . We had to wait for 45 min at the immigration just because no one was given landing slip . To top it all we were 3 passengers and had checked in 4 check in luggage . Out of which 3 have not yet arrived . Basically status says the loaded it in our flight ( this was a direct fight ) and it never reached . We are still waiting . There is nothing great to tell about our flight . The he only good thing was the crew were very helpful .

Lay out shows 1st row and second row given after taking payment. It's a fraud

The seats were extremely uncomfortable. Air India seats used to be very comfortable . with sufficient legroom. In this aircraft there was no legroom. It is a shame that for your profit margins you are trying to pack people like cattle on these long haul flights. The food was terrible. The bread was hard like a rock. Mr CEO of Air India, why don’t you take a flight in economy from India to USA and experience the hardships first hand. It is utter disgrace

Absolutely nothing. Cold and unpleasant airline staff, and to top it all, the entertainment system was broken. Really harrowing experience.

BAD experience. Entertainment system was not working and most of the passengers had this issue. Staff was not helpful. Meal was yuck. Bad old flights.

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.

It would have been perfect if there was onboard entertainment.

Food was unfit even for prisoners. larger front seats are terribly uncomfortable, which is ironic. Thorough need to upgrade aircraft on such a long route.

Everything you need to know for your flight from Washington, D.C. to Singapore

Cabin class types available on flights to Singapore

Cabin classes available on flights to Singapore. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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