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Cheap flights from Singapore to Washington from $407

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Singapore to Washington departing on 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Singapore to Washington

Recent round-trip flight deals from Singapore to Washington

Enter your travel dates to find the best prices.
China Airlines Logo
2:25 pm - 6:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
12:10 am - 12:40 am
SEA
-
SIN
32h 30m1 stop
$724China Airlines
jue., ene. 22 - sáb., ene. 24
China Airlines Logo
2:00 am - 6:10 pm
SIN
-
SEA
32h 10m1 stop
China Airlines Logo
12:10 am - 12:40 am
SEA
-
SIN
32h 30m1 stop
$748China Airlines
mié., ene. 21 - sáb., ene. 24
Korean Air Logo
10:40 am - 9:00 am
SIN
-
SEA
38h 20m1 stop
Korean Air Logo
11:00 am - 5:00 am
SEA
-
SIN
26h 00m1 stop
$758Korean Air
mar., feb. 10 - mié., feb. 25
Korean Air Logo
1:35 am - 9:00 am
SIN
-
SEA
23h 25m1 stop
Korean Air Logo
11:00 am - 12:10 am
SEA
-
SIN
21h 10m1 stop
$761Korean Air
lun., ene. 26 - sáb., ene. 31
United Airlines Logo
10:10 am - 9:12 pm
SIN
-
SEA
27h 02m1 stop
United Airlines Logo
5:10 pm - 8:15 pm
SEA
-
SIN
35h 05m1 stop
$772United Airlines
vie., ene. 23 - vie., ene. 30
United Airlines Logo
10:10 am - 9:12 pm
SIN
-
SEA
27h 02m1 stop
United Airlines Logo
6:03 am - 8:15 pm
SEA
-
SIN
22h 12m1 stop
$774United Airlines
jue., ene. 15 - mié., ene. 28
Multiple Airlines Logo
2:25 pm - 9:29 am
SIN
-
PDX
35h 04m2 stops
Multiple Airlines Logo
7:38 pm - 1:05 pm
PDX
-
SIN
25h 27m2 stops
$946Multiple Airlines
sáb., ene. 24 - sáb., ene. 31
Multiple Airlines Logo
3:45 pm - 10:46 pm
SIN
-
PDX
23h 01m2 stops
Multiple Airlines Logo
7:38 pm - 12:05 pm
PDX
-
SIN
24h 27m2 stops
$961Multiple Airlines
sáb., ene. 24 - sáb., ene. 31
Air Canada Logo
8:50 am - 6:30 pm
SIN
-
PDX
25h 40m1 stop
Air Canada Logo
9:50 am - 12:55 am
PDX
-
SIN
23h 05m2 stops
$1,038Air Canada
jue., feb. 12 - lun., feb. 16
Air Canada Logo
8:50 am - 9:15 am
SIN
-
PDX
16h 25m1 stop
Air Canada Logo
9:50 am - 12:55 am
PDX
-
SIN
23h 05m2 stops
$1,040Air Canada
jue., feb. 12 - lun., feb. 16

China Airlines flights from Singapore to State of Washington

Our best China Airlines deals on Singapore to State of Washington flight tickets
China Airlines
Jan 22
SIN2:25 pmSingapore Changi
19h 45m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Jan 24
SEA12:10 amSeattle/Tacoma Intl
32h 30m
1 stop
SIN12:40 amSingapore Changi
$724
Find similar
China Airlines
Jan 21
SIN2:00 amSingapore Changi
32h 10m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Jan 24
SEA12:10 amSeattle/Tacoma Intl
32h 30m
1 stop
SIN12:40 amSingapore Changi
$748
Find similar
China Airlines
May 23
SIN1:45 pmSingapore Changi
20h 45m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
May 24
SEA1:10 amSeattle/Tacoma Intl
32h 25m
1 stop
SIN12:35 amSingapore Changi
$760
Find similar

Delta flights from Singapore to State of Washington

Our best Delta deals on Singapore to State of Washington flight tickets
Delta
Mar 21
SIN10:40 amSingapore Changi
18h 40m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
Mar 31
SEA12:45 pmSeattle/Tacoma Intl
25h 15m
1 stop
SIN5:00 amSingapore Changi
$777
Find similar
Delta
Mar 21
SIN10:40 amSingapore Changi
38h 20m
1 stop
SEA10:00 amSeattle/Tacoma Intl
Mar 31
SEA1:30 pmSeattle/Tacoma Intl
39h 25m
2 stops
SIN7:55 pmSingapore Changi
$874
Find similar
Delta
Jan 22
SIN1:35 amSingapore Changi
23h 25m
1 stop
SEA9:00 amSeattle/Tacoma Intl
Jan 30
SEA8:10 pmSeattle/Tacoma Intl
36h 00m
2 stops
SIN12:10 amSingapore Changi
$875
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Singapore to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated diciembre 11, 2025.
Use the filters below to find and compare flights from Singapore to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

jue. 1/22

2:25 pm-6:10 pm

1 stop19h 45m

Seattle/Tacoma Intl

sáb. 1/24

12:10 am-12:40 am

1 stop32h 30m

$724

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

mié. 1/21

2:00 am-6:10 pm

1 stop32h 10m

Seattle/Tacoma Intl

sáb. 1/24

12:10 am-12:40 am

1 stop32h 30m

$748

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

mar. 2/10

10:40 am-9:00 am

1 stop38h 20m

Seattle/Tacoma Intl

mié. 2/25

11:00 am-5:00 am

1 stop26h 00m

$758

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

lun. 1/26

1:35 am-9:00 am

1 stop23h 25m

Seattle/Tacoma Intl

sáb. 1/31

11:00 am-12:10 am

1 stop21h 10m

$761

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

vie. 1/23

10:10 am-9:12 pm

1 stop27h 02m

Seattle/Tacoma Intl

vie. 1/30

5:10 pm-8:15 pm

1 stop35h 05m

$772

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

jue. 1/15

10:10 am-9:12 pm

1 stop27h 02m

Seattle/Tacoma Intl

mié. 1/28

6:03 am-8:15 pm

1 stop22h 12m

$774

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

sáb. 1/24

2:25 pm-9:29 am

2 stops35h 04m

Portland

sáb. 1/31

7:38 pm-1:05 pm

2 stops25h 27m

$946

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

sáb. 1/24

3:45 pm-10:46 pm

2 stops23h 01m

Portland

sáb. 1/31

7:38 pm-12:05 pm

2 stops24h 27m

$961

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

jue. 2/12

8:50 am-6:30 pm

1 stop25h 40m

Portland

lun. 2/16

9:50 am-12:55 am

2 stops23h 05m

$1,038

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

jue. 2/12

8:50 am-9:15 am

1 stop16h 25m

Portland

lun. 2/16

9:50 am-12:55 am

2 stops23h 05m

$1,040

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Singapore to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Singapore, with most prices found around $781. If you aren’t able to travel to State of Washington during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $831.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Singapore to State of Washington is on a Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $910. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Singapore to State of Washington for around $1,471.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $847. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,158 on average. Flights to State of Washington from Singapore in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Singapore to Washington flight route?

Fly from Singapore Changi to Seattle/Tacoma Intl for the best Singapore - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $876 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Singapore for as low as $805 on momondo.

What cabin class options are available on Singapore to Washington flights?

There are 3 cabin classes available to choose from on Singapore to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Singapore to State of Washington flights?

No. A direct flight is the cheapest option for a flight between Singapore to State of Washington.

Cheap Singapore to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Singapore to State of Washington

Fastest flight time

14h 10m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in State of Washington

96 airports
The fastest flight from Singapore to State of Washington takes 14h 10m
Direct flights go from Singapore to State of Washington on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Singapore Airlines.
There are 96 airports in State of Washington. From Singapore there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from Singapore to Washington?

    Prices for flights from Singapore to Washington are updated daily.

  • How many operators does momondo search for flights from Singapore to Washington?

  • How old do you have to be to fly from Singapore to Washington?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Singapore to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Singapore to State of Washington?

Best airlines flying from Singapore to State of Washington

Compare and see reviews for airlines that fly from Singapore to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $761Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
EVA AirPriceFrom $779Free CancellationRating
8.4
1,296 reviews
Search EVA Air flights
STARLUX AirlinesPriceFrom $785Free CancellationRating
8.9
243 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $833Free CancellationRating
8.1
1,412 reviews
Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Singapore to Washington?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Singapore to Washington. momondo saves you time and could save you money on your trip.

Can I find flights from Singapore to Washington with flexible booking policies on momondo?

Yes. All flights to Washington from Singapore on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Singapore to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Singapore.

I’m not ready to book a flight from Singapore to Washington right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Singapore and alert you when they change.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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