Find Cheap Flights from Singapore Changi to Washington Dulles Intl (SIN - IAD)

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Wed 11/22
Wed 11/29
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Good to Know

Average Price:
$2072
(avg. price over the last 2 weeks)
Good Deal:
$1147
or less (round trip)

When to Book Flights from Singapore Changi to Washington Dulles Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $1147 or less.
The cheapest flight from Singapore Changi to Washington Dulles Intl was found 90 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 8% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Singapore Changi to Washington Dulles Intl Flights

How long does a flight from Singapore Changi to Washington Dulles Intl take?
An average nonstop flight takes 26h 20m, covering a distance of 9650 miles.
Which airlines provide the cheapest flights from Singapore Changi to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($841), Air China ($876) and Jet Airways ($1000).
Do I need a passport to fly between Singapore Changi and Washington Dulles Intl?
Yes.
What’s the cheapest day of the week to fly Singapore Changi to Washington Dulles Intl?
For Singapore Changi to Washington Dulles Intl, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Washington Dulles Intl back to Singapore Changi, the best deals are generally found on Wednesday, with Friday being the most expensive.

Book cheap flights from Singapore Changi to Washington Dulles Intl (round-trip)

Airports
Origin
Singapore
$841
only
$841
Destination
Washington
$841
only
$841
Tue, Jan 16
SIN
IAD
30h 21m
Sun, Feb 4
IAD
SIN
36h 04m
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 11
SIN
IAD
41h 05m
Sat, Apr 7
IAD
SIN
25h 50m
Trip: 27 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3226 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
SGN
PEK
Mediocre 3.6

The food was good for airplane food.

It makes no sense to not allow the use of any electronics during take off and landing. My E reader doesn't even use a cell signal, but I couldn't have it out. Also, not allowing cell phones at ANY time during the flight, even in airplane mode, is ridiculous because tablets, which can have cell signals, are allowed. Air China is just frustrating.

LAX
PEK
Mediocre 3.6

Absolutely no customer service whatsoever, not even a smile. Best thing about this flight was the food and trust me that’s not saying much.

PEK
SFO
Mediocre 3.6

There were personal movie screens with movies I liked.

The food was pretty bad. The bottom seat cushion was quite hard so I couldn't sleep because I was shifting my weight every hour. We were told at the boarding gate that the flight was full when we asked about upgrades, but the economy plus section was almost empty once we were on. I don't understand the reasoning for lying about the flight being full. If you won't sell us an upgrade, just say so.

SFO
PEK
Mediocre 3.6

They upgraded my wife and I to an Exit Row, I'm tall

Dirty bathrooms, overall poor sanitary conditions of plane. Once in Beijing we had to go thru Immigration and Security again even though we were just transferring to another international destination (Bangkok) and the lines for both Immigration and Security in Beijing were super long and grossly understaffed. Even with a 2 hour layover we almost missed our connecting flight to Bangkok.

PEK
LAX
Good 6.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

Mon, Feb 5
SIN
IAD
33h 45m
Wed, Feb 14
IAD
SIN
31h 40m
$1000
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1462 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.5
Entertainment
6.5
Food
6.9
CMB
BOM
Excellent 9.0

On time departure and arrival.

Paid extra for a seat that was not really extra comfort.

BOM
RAJ
Good 6.0

Check in took a lot of time

PNQ
AUH
Mediocre 3.3

they didnt have a meal for me ! i starved

starvation on international flight ! ridiculous

VNS
HJR
Okay 5.0

Flight was late, don’t know why. Lots of staff standing around but slow check in process seemed more interested in attending to the tour groups than the individuals

DEL
AMS
Excellent 9.3

Limited options on entertainment

Mon, Nov 27
SIN
IAD
28h 35m
Sun, Dec 3
IAD
SIN
28h 25m
$1178
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13439 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BOM
Okay 5.3

The flight staffs were awesome

No USB port on the plane

LHR
DUB
Mediocre 3.3

Boarding was a bit confusing and staff wasn't actively being helpful with information. Got absolutely nothing to drink/eat on the plane-not even a glass of water! The flight crew was just ok, no one "stood out" as good or excellent. Again, nothing about this flight made me want to definitely fly British Airways again.

MAD
LHR
Mediocre 2.0

Got us (but not our bags) to Seattle. Wanted ro charge for water--are you kidding me??

Abysmally awful customer service--way beyond rude and not at all helpful.

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

ORD
LHR
Good 7.0

Flight crew was just ok; nothing they did made me want to fly with British Airways again. Salad was good but the chicken nondescript.

Wed, Apr 4
SIN
IAD
35h 10m
Wed, Apr 11
IAD
SIN
39h 30m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Dec 11
SIN
IAD
26h 20m
Tue, Jan 16
IAD
SIN
41h 20m
Trip: 37 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3226 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
HND
PEK
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

PEK
BKK
Mediocre 3.0

Nothing

All our checked bags, all of them, never made it. We are still waiting. Very cramped on totally full flight.

NRT
PEK
Good 7.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

PEK
IAH
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

PEK
HND
Excellent 8.6

The seats had more room so it was easy to get comfortable and sleep.

Didn't like that there was no one there to answer any questions. The ladies there brushed off anyone who showed up by tossing a paper with a new departure time at them. The didn't even attempt to understand other questions. Plus the flight was delayed an hour.

Tue, Dec 12
SIN
IAD
33h 35m
Tue, Jan 16
IAD
SIN
34h 10m
$1029
Trip: 36 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1462 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.5
Entertainment
6.5
Food
6.9
DEL
DED
Excellent 8.0

Jet Airways is the only airline I book for domestic flights when I go to India. They are generally on time. And always give you upnto date info. You can easily change flights and get refunds due to delays.

No complaints

BKK
BOM
Good 6.0

Crew very good Food good

Seat space -seating dimensions-poor Leg room-poor

BOM
RUH
Good 6.0

Crew very good Food good

Seat space -seating dimensions-poor Leg room-poor Flight delay - poor Aircraft -ok

BOM
RAJ
Good 6.0

Check in took a lot of time

HYD
BOM
Excellent 10.0

staff at jet airways are very polite and curteous

Mon, Dec 4
SIN
IAD
26h 20m
Thu, Jan 4
IAD
SIN
25h 55m
$1151
Trip: 32 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3226 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
SFO
PEK
Excellent 8.0

Crew was mostly polite and helpful

Lack of veggie meal options on SFO-PEK leg.

HND
PEK
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

PEK
IAH
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

LAX
PEK
Excellent 8.0

not too full. included a meal even though it was a night 5 hour flight.

PEK
SFO
Mediocre 3.6

There were personal movie screens with movies I liked.

The food was pretty bad. The bottom seat cushion was quite hard so I couldn't sleep because I was shifting my weight every hour. We were told at the boarding gate that the flight was full when we asked about upgrades, but the economy plus section was almost empty once we were on. I don't understand the reasoning for lying about the flight being full. If you won't sell us an upgrade, just say so.

Thu, Nov 23
SIN
IAD
33h 00m
Wed, Dec 13
IAD
SIN
25h 35m
$1448
Trip: 21 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 1462 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.5
Entertainment
6.5
Food
6.9
HYD
BOM
Excellent 10.0

staff at jet airways are very polite and curteous

CCU
BOM
Excellent 10.0

Weight limit on the carry on luggage. I was 2 kg over the weight limit of 7 kg. The dimensions of the bag didn't matter. The ground staff issued me a boarding pass without checking a preference for an aisle or a window seat although I arrived 2 hours and 30 minutes before official departure. I don't know if an online check in would have made a difference.

VNS
HJR
Okay 5.0

Flight was late, don’t know why. Lots of staff standing around but slow check in process seemed more interested in attending to the tour groups than the individuals

MAA
CDG
Excellent 8.0

Good, and Boarding

PNQ
AUH
Mediocre 3.3

they didnt have a meal for me ! i starved

starvation on international flight ! ridiculous

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