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S$ 590 Find cheap flights from Washington to Southeast Asia

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 to Southeast Asia departing on 26-1. 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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Low season

May

High season

January

Cheapest flight

S$ 590
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Seattle to Singapore

FAQs for booking flights from Washington to Southeast Asia

  • How does KAYAK find such low prices on flights from Washington to Southeast Asia?

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Washington to Southeast Asia 
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!

Top 3 airlines serving from Washington to Southeast Asia

Need help choosing which airline to fly with from Washington to Southeast Asia? 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 1336 reviews
8.3Boarding
8.0Comfort
8.0Entertainment
7.7Food
8.6Crew
Airline reviews

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

6.0 GoodMonica, Oct 2024SEA - SIN
Read more Singapore Airlines reviews

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

The crew and their service was top notch, but the plane itself seemed to be on the older side and worn out. Also, the food could’ve been better. 9 out of 10.

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

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.

Excellent- a lot of food Disappointed with the premium economy pouch- did not have toothbrush and tooth paste or socks. Other airlines provide them

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

A 16 hour flight from Singapore to Los Angeles had only 2 meals. Please make it 3 meals.

A 16 hour flight from Singapore to Los Angeles had only 2 meals. It would be great to have 3 meals.

The experience was poor in comparison to the flight to Manado from Singapore via Scoot. Gate against could only check in stroller to Singapore (by clearing immigration) or to Brisbane. Who is able to carry their baby for 7 hour transit without having to enter Singapore?

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

Customer service was exceptional. I heard it wasn’t a great airline, my opinion has changed after flying with them

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

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.

Mediocre. Nothing special. Bad airline food Never received the food I requested Slow response from ground staff concerning my wheelchair. I was left at a holding area and had to walk the distance to the gate. In Hong Kong

For a transpacific flight, flying economy is awful! The seats are cramped and its meant for petite folks! Good luck if you have long legs. BOARDING - AWFUL, we got to Hong Kong - the gate was listed, but upon arrival, there was a MESS of boarding procedures, they basically DIY'ed how to board but making three lines and putting three ground crew to check for passports in the terminal area. THEN to make it worse, after going through that cattle process, all of a sudden you see people standing and looking confused, apparently we were told to get in line to board, but the AV notification wasnt even working. So people started cramming in line - worse than cattle. One saving point, the flight crew forgot to serve me dinner and after waiting for it, I fell asleep since this was a midnight flight. After letting a crew know that I was forgotten, all of my meals were served first !!! Yay for being in the economy seats! Nothing much to write home about once more!

Bathroom was not cleaned as often as other airlines does. It was gross for a less than full flight capacity.

Rarely saw a flight attendant. Never received what I wanted from drink service. Twice I was told they would return with my order. I never saw the flight attendant again. I has requested a Moslem meal. I did not receive. It

From BOS to HK, the crew had pushed me to choose the pasta for meal multiple times. It was a bad experience. Without this, everything was good.

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

Was on scoot plus. The only good thing about the flight was the spacious seats. Tables and armrests were extremely dirty Food: bad Entertainment: non existent Wifi: unable to connect, then was painfully slow that we couldn’t even send messages Good thing we had a night flight, so we just slept throughout.

Book cheap flights from Washington to Southeast Asia

Recent return flight deals

24-11Sun
1 stopPhilippine Airlines
19h 00mSEA-SIN
10-12Tue
1 stopPhilippine Airlines
38h 10mSIN-SEA
S$ 969
17-11Sun
1 stopPhilippine Airlines
28h 25mSEA-SIN
22-11Fri
1 stopPhilippine Airlines
20h 00mSIN-SEA
S$ 1,017
26-1Sun
1 stopJapan Airlines
20h 20mSEA-SIN
12-2Wed
1 stopJapan Airlines
17h 40mSIN-SEA
S$ 1,045
28-1Tue
2 stopsJapan Airlines
30h 37mSEA-SIN
12-2Wed
1 stopJapan Airlines
17h 40mSIN-SEA
S$ 1,047
25-3Tue
1 stopAsiana Airlines
41h 10mSEA-SIN
10-4Thu
1 stopAsiana Airlines
28h 25mSIN-SEA
S$ 1,062
2-2Sun
1 stopAsiana Airlines
19h 50mSEA-SIN
27-2Thu
1 stopAsiana Airlines
25h 00mSIN-SEA
S$ 1,063
6-3Thu
directSingapore Airlines
17h 00mSEA-SIN
11-3Tue
directSingapore Airlines
14h 10mSIN-SEA
S$ 1,204
12-2Wed
1 stopSingapore Airlines
31h 07mSEA-SIN
13-3Thu
directSingapore Airlines
14h 10mSIN-SEA
S$ 1,225
6-4Sun
2 stopsCathay Pacific
34h 30mPDX-SIN
19-4Sat
2 stopsCathay Pacific
25h 48mSIN-PDX
S$ 1,603
9-2Sun
3 stopsCathay Pacific
29h 23mPDX-SIN
16-2Sun
2 stopsCathay Pacific
31h 51mSIN-PDX
S$ 1,638

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Recent one-way flight deals

26-1Sun
1 stopJapan Airlines
20h 20mSEA-SIN
S$ 590
26-1Sun
2 stopsJapan Airlines
30h 37mSEA-SIN
S$ 593
25-3Tue
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 599
11-3Tue
2 stopsAir Canada
28h 45mSEA-SIN
S$ 646
1-12Sun
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 654
25-3Tue
directSingapore Airlines
17h 00mSEA-SIN
S$ 672
25-2Tue
directSingapore Airlines
17h 00mSEA-SIN
S$ 697
1-12Sun
2 stopsAir Canada
27h 35mSEA-SIN
S$ 713
6-3Thu
3 stopsCathay Pacific
30h 45mPDX-SIN
S$ 832
25-3Tue
3 stopsCathay Pacific
32h 20mSEA-SIN
S$ 895

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Last minute flights from Washington to Southeast Asia

Last minute flight, train and bus deals

7-11Thu
multi-stopUnited Airlines
22h 39mSEA-SIN
9-11Sat
multi-stopUnited Airlines
18h 43mSIN-SEA
S$ 1,176
7-11Thu
multi-stopUnited Airlines
22h 39mSEA-SIN
9-11Sat
multi-stopUnited Airlines
21h 50mSIN-SEA
S$ 1,181
9-11Sat
multi-stopTurkish Airlines
45h 45mSEA-SIN
21-11Thu
multi-stopTurkish Airlines
28h 00mSIN-SEA
S$ 1,290
9-11Sat
multi-stopTurkish Airlines
45h 45mSEA-SIN
22-11Fri
multi-stopTurkish Airlines
46h 40mSIN-SEA
S$ 1,330
9-11Sat
multi-stop
40h 00mSEA-SIN
21-11Thu
multi-stop
20h 30mSIN-SEA
S$ 1,375
7-11Thu
multi-stop
25h 46mSEA-SIN
14-11Thu
multi-stop
23h 30mSIN-SEA
S$ 1,377
6-11Wed
multi-stopCathay Pacific
30h 25mPDX-SIN
5-12Thu
multi-stopCathay Pacific
34h 20mSIN-PDX
S$ 1,650
8-11Fri
multi-stopCathay Pacific
42h 20mPDX-SIN
13-11Wed
multi-stopCathay Pacific
22h 03mSIN-PDX
S$ 1,748
9-11Sat
directSingapore Airlines
17h 00mSEA-SIN
19-11Tue
multi-stopSingapore Airlines
28h 25mSIN-SEA
S$ 2,336
9-11Sat
directSingapore Airlines
17h 00mSEA-SIN
18-11Mon
multi-stopSingapore Airlines
19h 15mSIN-SEA
S$ 2,455

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Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Washington

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