S$ 535 Find cheap flights from Washington 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 to Singapore departing on 21-1. 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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Good to know

Low season

August

High season

November

Cheapest flight

S$ 535
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly and prices are also 18% lower on average.
Flight from Seattle to Singapore

FAQs for booking flights from Washington to Singapore

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from Washington 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 to Singapore?

    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 Singapore with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 to Singapore from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Flights from Washington to Singapore: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Washington to Singapore 
Verified travelerFlew with Singapore AirlinesSEA-SINAug 2024
If you need special meals book them early
JeffFlew with Singapore AirlinesSEA-SINJan 2024
Delta & Alaska have best boarding process! Singapore airlines was ok!

Prefer to fly direct from Washington to Singapore Changi?

Find which airlines fly direct from Washington to Singapore Changi Airport, which days they fly and book direct flights.

Direct departures

Washington to Singapore Changi

Monday

ANA, Aegean Airlines, Air Canada, +100 more

ANA, Aegean Airlines, +101 more

Tuesday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Wednesday

ANA, Aegean Airlines, Air Canada, +101 more

ANA, Aegean Airlines, +102 more

Thursday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Friday

ANA, Aegean Airlines, Air Canada, +100 more

ANA, Aegean Airlines, +101 more

Saturday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Sunday

ANA, Aegean Airlines, Air Canada, +102 more

ANA, Aegean Airlines, +103 more

See more direct flights

Direct returns

Singapore Changi to Washington

Monday

ANA, Aegean Airlines, Air Canada, +100 more

ANA, Aegean Airlines, +101 more

Tuesday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Wednesday

ANA, Aegean Airlines, Air Canada, +101 more

ANA, Aegean Airlines, +102 more

Thursday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Friday

ANA, Aegean Airlines, Air Canada, +100 more

ANA, Aegean Airlines, +101 more

Saturday

ANA, Aegean Airlines, Air Canada, +103 more

ANA, Aegean Airlines, +104 more

Sunday

ANA, Aegean Airlines, Air Canada, +102 more

ANA, Aegean Airlines, +103 more

See more direct flights
See more direct flights

Top 3 airlines serving from Washington to Singapore

Need help choosing which airline to fly with from Washington 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.
8.1
Singapore AirlinesOverall score based on 1339 reviews
8.0Entertainment
8.3Boarding
8.0Comfort
8.6Crew
7.7Food
Airline reviews

I was a member of Krisflyer for ten years, but my last flight to Tokyo was a disaster. I had to stand in line for four hours before check-in because they were late opening the counter, and there were more than 50 people behind me. The plane was extremely small, and the food could have been better. When I dropped off my stroller before boarding the plane, I expected to receive it upon exiting for my transfer. However, they returned the stroller to the checked baggage because they said I was late getting off the plane. Of course, I was late; they assigned me a seat at the back of the aircraft, and I was traveling with a baby! The worst part was when I arrived in Jakarta. They damaged my stroller and refused to approve my claim, so I had to pay for stroller rental because of the damage they caused. I don’t know what happened to Singapore Airlines, but I felt like I was flying with a budget airline.

4.0 OkayKhairul, Nov 2024CGK - SIN
Read more Singapore Airlines reviews

I was a member of Krisflyer for ten years, but my last flight to Tokyo was a disaster. I had to stand in line for four hours before check-in because they were late opening the counter, and there were more than 50 people behind me. The plane was extremely small, and the food could have been better. When I dropped off my stroller before boarding the plane, I expected to receive it upon exiting for my transfer. However, they returned the stroller to the checked baggage because they said I was late getting off the plane. Of course, I was late; they assigned me a seat at the back of the aircraft, and I was traveling with a baby! The worst part was when I arrived in Jakarta. They damaged my stroller and refused to approve my claim, so I had to pay for stroller rental because of the damage they caused. I don’t know what happened to Singapore Airlines, but I felt like I was flying with a budget airline.

Crews were very caring and polite. Washroom was surprisingly clean. Overall experience was good , only food choices was very limited. Thanks

On time boarding I would like to see ground hostess to help transit customers to direct them to the right terminal and boarding gate. Last night, all the transit customers on SQ484 arriving Singapore had to merry go round to look for terminal and boarding gate to board SQ128 transit to KL Malaysia. We went to Terminal 3 taking the Skytrain to T3 and back to T3 to get out to look for different Skytrain to T2. On arrival t2, we had to go round to ask which boarding gate to KL. We only had 5 minutes to make to the boarding time at 6:55pm but we already spent more than 30 minutes running around to find the boarding gate. We were late at the boarding gate.

The seats were more narrow than at other lines. Food was mediocre (economy class)

The crew have great customer service but their economy seating isn’t the most comfortable for a 220lbs+ guy and the food wasn’t bad, but wasn’t exceptional, either.

Food option Hindu veg to Hindu non veg request was unheard

They made 22 hours aboard aircraft very enjoyable. I was very impressed with the attention to detail and level of service. Singapore airline will be my preferred choice going forward.

Could not really fault anything. We had a really short time between flights (about 45 mins), and had to get across the other side of the terminal. But we made it and crew were helpful. Food was good and service for the kids was great.

On time, friendly staff and decent food. Would definitely recommend.

My daughter and I had a pleasant trip to Singapore. Reliable and on time.

Food was hood for airline food with good poftion and variety in meals. Frequency of beverage service was very low and amount of soda with meals was inadequate.

Excellent service provided the flight crew. Food and drinks were very good.

Meal options for vegetarians can be provided… Nothing was offered for me for dinner.. crew just said no vegetarian option available and did even bother to provide any alternatives or something to eat.

Cathay has a great reputation, though it's baseline economy seating is nothing to write home about (and SE Asia flight passengers sometime lack 'routine stateside' etiquette). On the other hand, food was great, flight attendants were nice, and price was very good~

I was really impressed with the experience it was my first trip overseas. Nice staff

Not enough food for everyone. . Always run out of food when we ask

Cathay was not the problem. The problem was the customer service from Kayak/Underprice. Will never book through Kayak again.

The crews were smiling all the time with soft tunes when they spoke; the food was excellent. Thank you!

Cathay flight was fine, Amsterdam airport was a nightmare, spent way too much time walking to our next connection, no travelators.

They charged me $900 to board my flight I already paid for just because I missed my previous flight. I do not recommend this airline by any means.

Food & lower the prices. Look at Air Asia food look better & affordable

Not a frequent user of their website booking. Booked my check-in baggage and only realized that I did not book my check in baggage for return flight. The receipt was not clear in identifying that as well. Was charged exorbitantly at check in counter. Bad taste for sure when it is a business trip and not leisure trip. Baggage was delayed for more than an hour at belt back in SG.

Boarding took forever. It's also weird that we paid more (for preferred seats) to get on the plane last. Inflight WiFi never worked the entire trip. I want my money back.

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

6hrs fly they dont give you a glass of water from seoul to singapore need to buy drink and food plus they charge for bag on international fly is always Free 1 bag from seoul to singapore is Not a local fly you are traveling true asia same story from singapore to Bali no water drink after payment for bag drink cost more the regular airline Well never use this company again we use regular company like Delta korea japan China and even scoot parent company Singapore Air

We had 2 attempts to land at Singapore Changing during a thunderstorm. Everything was delayed by 1 hour plus.

Boarding was not accordingly after front seat, bmf then back seat. This delayed for at least 40mins or more. The staff at Jakarta can do better. Is chaos at the entry to board the plane. This tarnished Scoot reputation when everyone was talking about it.

The crew was not customer oriented at all, even confrontational . The aircraft needs more attention to detail as far as comfort, and the 1 hour sitting at the gate with no air is inexcusable

We flew on the 787 Dreamliner direct to main gate at KLIA2, quick entry via eGate and on the train 41mins after touchdown. Go well SCOOT

Book cheap flights from Washington to Singapore

Recent return flight deals

21-1Tue
1 stopAsiana Airlines
41h 10mSEA-SIN
18-2Tue
1 stopAsiana Airlines
27h 45mSIN-SEA
S$ 1,015
5-2Wed
1 stopAsiana Airlines
41h 10mSEA-SIN
28-2Fri
1 stopAsiana Airlines
27h 45mSIN-SEA
S$ 1,024
14-1Tue
2 stopsJapan Airlines
41h 22mSEA-SIN
29-1Wed
1 stopJapan Airlines
17h 40mSIN-SEA
S$ 1,036
14-1Tue
2 stopsJapan Airlines
30h 37mSEA-SIN
29-1Wed
2 stopsJapan Airlines
24h 44mSIN-SEA
S$ 1,044
16-1Thu
2 stopsAmerican Airlines
26h 50mSEA-SIN
22-1Wed
1 stopAmerican Airlines
17h 40mSIN-SEA
S$ 1,076
14-1Tue
2 stopsAmerican Airlines
26h 50mSEA-SIN
29-1Wed
1 stopAmerican Airlines
17h 40mSIN-SEA
S$ 1,080
11-3Tue
directSingapore Airlines
17h 00mSEA-SIN
25-3Tue
directSingapore Airlines
14h 10mSIN-SEA
S$ 1,099
6-3Thu
directSingapore Airlines
17h 00mSEA-SIN
23-3Sun
directSingapore Airlines
14h 10mSIN-SEA
S$ 1,166
1-4Tue
2 stopsCathay Pacific
27h 20mPDX-SIN
15-4Tue
2 stopsCathay Pacific
39h 23mSIN-PDX
S$ 1,571
9-2Sun
2 stopsCathay Pacific
26h 25mPDX-SIN
15-2Sat
2 stopsCathay Pacific
28h 40mSIN-PDX
S$ 1,652

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Recent one-way flight deals

21-1Tue
2 stops
41h 12mSEA-SIN
S$ 535
25-2Tue
2 stops
37h 11mPDX-SIN
S$ 538
29-11Fri
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 562
27-11Wed
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 567
26-1Sun
1 stopJapan Airlines
20h 20mSEA-SIN
S$ 598
26-1Sun
2 stopsJapan Airlines
30h 37mSEA-SIN
S$ 601
11-3Tue
directSingapore Airlines
17h 00mSEA-SIN
S$ 707
26-1Sun
directSingapore Airlines
17h 00mSEA-SIN
S$ 774
24-2Mon
3 stopsCathay Pacific
30h 45mPDX-SIN
S$ 871
27-2Thu
3 stopsCathay Pacific
29h 04mPDX-SIN
S$ 961

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Last minute flights from Washington to Singapore

Last minute flight, train and bus deals

27-11Wed
multi-stopAsiana Airlines
41h 10mSEA-SIN
3-12Tue
multi-stopAsiana Airlines
25h 00mSIN-SEA
S$ 1,083
24-11Sun
multi-stopJapan Airlines
20h 40mSEA-SIN
28-11Thu
multi-stopJapan Airlines
17h 35mSIN-SEA
S$ 1,091
24-11Sun
multi-stopAir Canada
20h 40mSEA-SIN
5-12Thu
multi-stopAir Canada
20h 25mSIN-SEA
S$ 1,175
25-11Mon
multi-stopUnited Airlines
23h 25mSEA-SIN
3-12Tue
multi-stopUnited Airlines
18h 30mSIN-SEA
S$ 1,177
23-11Sat
multi-stopUnited Airlines
43h 31mSEA-SIN
29-11Fri
multi-stopUnited Airlines
26h 57mSIN-SEA
S$ 1,179
25-11Mon
multi-stopAir Canada
37h 20mSEA-SIN
3-12Tue
multi-stopAir Canada
20h 25mSIN-SEA
S$ 1,708
24-11Sun
multi-stopCathay Pacific
26h 08mSEA-SIN
30-11Sat
multi-stopCathay Pacific
26h 54mSIN-SEA
S$ 1,837
23-11Sat
multi-stopCathay Pacific
38h 26mSEA-SIN
1-12Sun
multi-stopCathay Pacific
37h 50mSIN-SEA
S$ 1,908
24-11Sun
directSingapore Airlines
17h 00mSEA-SIN
5-12Thu
directSingapore Airlines
14h 10mSIN-SEA
S$ 2,141
24-11Sun
directSingapore Airlines
17h 00mSEA-SIN
28-11Thu
directSingapore Airlines
14h 10mSIN-SEA
S$ 2,182

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Everything you need to know for your flight to Singapore

Information on the airport you'll fly into in Singapore

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