S$ 537 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 25-2. 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

May

High season

January

Cheapest flight

S$ 537
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Portland 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.

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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
8.0Entertainment
8.0Comfort
8.6Crew
7.7Food
Airline reviews

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.

8.0 ExcellentAnonymous, Nov 2024SFO - SIN
Read more Singapore Airlines reviews

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

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.

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.

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.

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.

Not good. Small seats. Not enough food that customers wanted. No special requests were given that i could see. Slow response from flight attendants

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

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

12-2Wed
1 stopAsiana Airlines
41h 10mSEA-SIN
19-2Wed
1 stopAsiana Airlines
27h 45mSIN-SEA
S$ 1,006
16-1Thu
1 stopAsiana Airlines
41h 10mSEA-SIN
22-1Wed
1 stopAsiana Airlines
27h 45mSIN-SEA
S$ 1,013
19-1Sun
1 stopJapan Airlines
20h 20mSEA-SIN
2-2Sun
2 stopsJapan Airlines
34h 34mSIN-SEA
S$ 1,069
16-1Thu
2 stopsAmerican Airlines
26h 50mSEA-SIN
22-1Wed
1 stopAmerican Airlines
17h 40mSIN-SEA
S$ 1,074
19-1Sun
2 stopsJapan Airlines
51h 10mSEA-SIN
2-2Sun
2 stopsJapan Airlines
34h 34mSIN-SEA
S$ 1,078
16-1Thu
2 stopsAmerican Airlines
26h 50mSEA-SIN
22-1Wed
2 stopsAmerican Airlines
26h 35mSIN-SEA
S$ 1,088
11-3Tue
directSingapore Airlines
17h 00mSEA-SIN
6-4Sun
directSingapore Airlines
14h 45mSIN-SEA
S$ 1,164
6-3Thu
directSingapore Airlines
17h 00mSEA-SIN
23-3Sun
directSingapore Airlines
14h 10mSIN-SEA
S$ 1,238
1-4Tue
2 stopsCathay Pacific
27h 20mPDX-SIN
15-4Tue
2 stopsCathay Pacific
39h 23mSIN-PDX
S$ 1,568
9-2Sun
2 stopsCathay Pacific
26h 25mPDX-SIN
15-2Sat
2 stopsCathay Pacific
28h 40mSIN-PDX
S$ 1,649

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Recent one-way flight deals

25-2Tue
2 stops
37h 11mPDX-SIN
S$ 537
22-2Sat
2 stops
37h 11mPDX-SIN
S$ 551
2-2Sun
1 stopAsiana Airlines
41h 10mSEA-SIN
S$ 557
7-1Tue
2 stopsJapan Airlines
30h 37mSEA-SIN
S$ 597
28-4Mon
2 stopsJapan Airlines
24h 50mSEA-SIN
S$ 600
11-3Tue
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 617
11-3Tue
directSingapore Airlines
17h 00mSEA-SIN
S$ 706
24-2Mon
3 stopsCathay Pacific
29h 04mPDX-SIN
S$ 869
27-2Thu
3 stopsCathay Pacific
29h 04mPDX-SIN
S$ 959
23-1Thu
1 stopSingapore Airlines
30h 43mPDX-SIN
S$ 1,010

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Last minute flights from Washington to Southeast Asia

Last minute flight, train and bus deals

24-11Sun
multi-stopJapan Airlines
20h 40mSEA-SIN
27-11Wed
multi-stopJapan Airlines
28h 11mSIN-SEA
S$ 1,194
24-11Sun
multi-stopUnited Airlines
33h 04mSEA-SIN
28-11Thu
multi-stopUnited Airlines
21h 23mSIN-SEA
S$ 1,195
24-11Sun
multi-stop
20h 40mSEA-SIN
27-11Wed
multi-stop
23h 30mSIN-SEA
S$ 1,357
24-11Sun
multi-stop
20h 40mSEA-SIN
28-11Thu
multi-stop
38h 00mSIN-SEA
S$ 1,378
23-11Sat
multi-stopDelta
36h 05mSEA-SIN
28-11Thu
multi-stopDelta
18h 17mSIN-SEA
S$ 1,822
23-11Sat
multi-stopCathay Pacific
30h 33mSEA-SIN
29-11Fri
multi-stopCathay Pacific
27h 42mSIN-SEA
S$ 2,165
23-11Sat
multi-stopCathay Pacific
29h 58mSEA-SIN
28-11Thu
multi-stopCathay Pacific
32h 57mSIN-SEA
S$ 2,531
23-11Sat
multi-stopDelta
39h 05mSEA-SIN
28-11Thu
multi-stopDelta
23h 30mSIN-SEA
S$ 2,783
23-11Sat
directSingapore Airlines
17h 00mSEA-SIN
10-12Tue
multi-stopSingapore Airlines
19h 54mSIN-SEA
S$ 11,502
23-11Sat
directSingapore Airlines
17h 00mSEA-SIN
10-12Tue
directSingapore Airlines
14h 10mSIN-SEA
S$ 14,345

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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.

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