IAD

S$ 660 Find Cheap Flights 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 23-12. 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 for flights to Washington, D.C.
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
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Cheap Flight Deals to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Dulles Intl 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
17:00 - 14:45SIN-IAD
34h 45m1 stop
18:10 - 15:30IAD-SIN
80h 20m1 stop
S$ 1,230SAUDIA
Find Deal
Sat, 1 Feb - Sat, 15 Feb
17:00 - 14:45SIN-IAD
34h 45m1 stop
18:10 - 15:30IAD-SIN
80h 20m1 stop
S$ 1,269SAUDIA
Find Deal
Sat, 1 Feb - Thu, 13 Feb
20:05 - 06:50SIN-IAD
23h 45m1 stop
10:00 - 07:00IAD-SIN
32h 00m1 stop
S$ 1,541Air India
Find Deal
Mon, 20 Jan - Sat, 25 Jan
22:20 - 20:40SIN-IAD
35h 20m2 stops
12:35 - 20:15IAD-SIN
42h 40m1 stop
S$ 1,591United Airlines
Find Deal
Tue, 14 Jan - Tue, 21 Jan
22:20 - 22:09SIN-IAD
36h 49m2 stops
14:20 - 08:00IAD-SIN
28h 40m1 stop
S$ 1,641United Airlines
Find Deal
Sat, 1 Feb - Thu, 13 Feb
01:10 - 11:15SIN-IAD
22h 05m1 stop
13:40 - 23:40IAD-SIN
22h 00m1 stop
S$ 1,859Korean Air
Find Deal
Thu, 22 May - Thu, 3 Jul
01:10 - 11:15SIN-IAD
22h 05m1 stop
13:40 - 05:00IAD-SIN
27h 20m1 stop
S$ 1,861Korean 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$ 1,905Qatar Airways
Find Deal
Fri, 31 Jan - Thu, 13 Feb
03:15 - 15:55SIN-IAD
25h 40m1 stop
20:05 - 18:35IAD-SIN
33h 30m2 stops
S$ 2,066Qatar Airways
Find Deal
Fri, 31 Jan - Thu, 13 Feb
23:00 - 06:50SIN-IAD
44h 50m1 stop
10:00 - 07:00IAD-SIN
32h 00m1 stop
S$ 2,387Air India
Find Deal
Wed, 1 Jan - Sun, 12 Jan

Flights to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into 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 round-trip 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 round-trip tickets can be as cheap as S$ 1,586. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are S$ 1,975 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 September, where tickets cost S$ 1,586 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Singapore is S$ 1,949 and S$ 1,912 respectively. For one-way flights, the best month to travel is September with an average price of S$ 1,586.

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

The average price for all round-trip 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 evening, when round-trip flights cost S$ 1,485 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 S$ 1,911.

How far in advance should I book a flight 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 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, 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$ 660
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 to Dulles Intl

Are your dates flexible? Find out the best times to travel 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. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Washington Dulles Airport flights

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

    There are 36 km between Washington, D.C. city centre and Washington, D.C. Dulles Intl 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 travellers 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 return 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.

See more FAQs

Top tips for finding cheap flights to Washington Dulles Airport

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from Singapore is September.
  • 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 direct to Washington, D.C. Dulles Intl?

Find which airlines fly direct to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Singapore to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Thursday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Friday

ANA, ASKY, Aer Lingus, +71 more

ANA, ASKY, +72 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Singapore

Monday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Thursday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Friday

ANA, ASKY, Aer Lingus, +71 more

ANA, ASKY, +72 more

Saturday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Sunday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

See more direct flights
See more direct flights

Top 5 airlines flying 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.
8.4
Korean AirOverall score based on 1021 reviews
8.5Boarding
8.3Comfort
8.2Entertainment
8.7Crew
8.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Dec 2024ICN - LAX
Read more Korean Air reviews

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

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.

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.

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.

The crew and my luggage was still pretty good after a long flight. They take good care of the luggage.

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.

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.

My checked bag did not get loaded on the aircraft in Istanbul. Other than that, the flight was smooth, on time and the crew was friendly, efficient, and professional.

You need to weight all bags together because we were 2 and we allowed 4 bags plus hand carry and personal items. We trying to saved bag like we put our stuff in 3 bags so we don’t have to carry more bags and airline also save space time less bags less work. We had only 1.6 kg over and we requested crew he said it’s airline policy that you need separate bag that’s ruined our mod and carry that suit in our hand in plastic bag he didn’t understand that we have less bags that make sense if we brought over luggage then it’s problem. I think if you guys change your policy and weight all together that will be good

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 Washington, D.C. Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Washington, D.C. found on KAYAK in the last 72 hours.
1-2Sat
1 stopSAUDIA
34h 45mSIN-IAD
15-2Sat
1 stopSAUDIA
80h 20mIAD-SIN
S$ 1,230
1-2Sat
1 stopSAUDIA
34h 45mSIN-IAD
13-2Thu
1 stopSAUDIA
80h 20mIAD-SIN
S$ 1,269
20-1Mon
1 stopAir India
23h 45mSIN-IAD
25-1Sat
1 stopAir India
32h 00mIAD-SIN
S$ 1,541
14-1Tue
2 stopsUnited Airlines
35h 20mSIN-IAD
21-1Tue
1 stopUnited Airlines
42h 40mIAD-SIN
S$ 1,591
1-2Sat
2 stopsUnited Airlines
36h 49mSIN-IAD
13-2Thu
1 stopUnited Airlines
28h 40mIAD-SIN
S$ 1,641
22-5Thu
1 stopKorean Air
22h 05mSIN-IAD
3-7Thu
1 stopKorean Air
22h 00mIAD-SIN
S$ 1,859
22-5Thu
1 stopKorean Air
22h 05mSIN-IAD
3-7Thu
1 stopKorean Air
27h 20mIAD-SIN
S$ 1,861
31-1Fri
1 stopQatar Airways
25h 40mSIN-IAD
13-2Thu
1 stopQatar Airways
36h 10mIAD-SIN
S$ 1,905
31-1Fri
1 stopQatar Airways
25h 40mSIN-IAD
13-2Thu
2 stopsQatar Airways
33h 30mIAD-SIN
S$ 2,066
1-1Wed
1 stopAir India
44h 50mSIN-IAD
12-1Sun
1 stopAir India
32h 00mIAD-SIN
S$ 2,387

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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.
23-12Mon
1 stopSAUDIA
34h 45mSIN-IAD
S$ 660
15-2Sat
1 stopSAUDIA
34h 45mSIN-IAD
S$ 670
13-4Sun
1 stopAir India
44h 15mSIN-IAD
S$ 970
12-4Sat
1 stopAir India
23h 10mSIN-IAD
S$ 987
24-3Mon
1 stopKorean Air
21h 20mSIN-IAD
S$ 1,049
23-3Sun
1 stopKorean Air
21h 20mSIN-IAD
S$ 1,050
29-3Sat
1 stopQatar Airways
26h 10mSIN-IAD
S$ 1,107
29-3Sat
1 stopQatar Airways
26h 10mSIN-IAD
S$ 1,108
18-4Fri
3 stopsUnited Airlines
32h 46mSIN-IAD
S$ 1,586
19-4Sat
3 stopsUnited Airlines
32h 46mSIN-IAD
S$ 1,677

Search by stops

Search by airline

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Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.

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