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Cheap flights from Singapore to Washington from $421

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 11/14. 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

Asiana Airlines Logo
11:10 pm - 1:55 pmSIN-SEA
30h 45m1 stop
Asiana Airlines Logo
12:10 am - 9:55 pmSEA-SIN
29h 45m1 stop
$536Asiana Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 30
Singapore Airlines Logo
9:00 am - 8:10 amSIN-SEA
14h 10mnonstop
Singapore Airlines Logo
8:45 am - 5:45 pmSEA-SIN
17h 00mnonstop
$733Singapore Airlines
Find Deal
Fri, Oct 31 - Thu, Feb 12
Logo
9:00 am - 8:45 amSIN-SEA
14h 45mnonstop
Logo
9:30 pm - 1:00 pmSEA-SIN
23h 30m1 stop
$740
Find Deal
Fri, Oct 24 - Sun, Nov 9
Logo
9:00 am - 8:10 amSIN-SEA
14h 10mnonstop
Logo
9:30 pm - 1:00 pmSEA-SIN
23h 30m1 stop
$742
Find Deal
Fri, Oct 31 - Thu, Feb 12
STARLUX Airlines Logo
2:00 pm - 4:10 pmSIN-SEA
17h 10m1 stop
STARLUX Airlines Logo
1:15 am - 12:40 pmSEA-SIN
20h 25m1 stop
$779STARLUX Airlines
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Wed, Sep 24 - Tue, Oct 7
United Airlines Logo
8:45 am - 4:24 pmSIN-SEA
22h 39m1 stop
United Airlines Logo
7:00 am - 8:15 pmSEA-SIN
21h 15m1 stop
$786United Airlines
Find Deal
Fri, Oct 24 - Sun, Nov 9
United Airlines Logo
8:40 pm - 12:07 pmSIN-SEA
30h 27m1 stop
United Airlines Logo
7:00 am - 6:25 pmSEA-SIN
20h 25m1 stop
$787United Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 27
STARLUX Airlines Logo
2:00 pm - 4:10 pmSIN-SEA
17h 10m1 stop
STARLUX Airlines Logo
1:15 am - 12:40 pmSEA-SIN
20h 25m1 stop
$814STARLUX Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
EVA Air Logo
1:10 pm - 7:30 pmSIN-SEA
21h 20m1 stop
EVA Air Logo
1:30 am - 12:00 pmSEA-SIN
19h 30m1 stop
$822EVA Air
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Thu, Oct 2 - Wed, Oct 8
EVA Air Logo
3:45 pm - 7:10 pmSIN-SEA
18h 25m1 stop
EVA Air Logo
12:10 am - 2:30 pmSEA-SIN
22h 20m1 stop
$833EVA Air
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Fri, Oct 31 - Wed, Feb 11

Air Canada flights from Singapore to State of Washington

Our best Air Canada deals on Singapore to State of Washington flight tickets
Air Canada
Nov 21
SIN8:50 amSingapore Changi
26h 26m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
Nov 30
SEA8:00 pmSeattle/Tacoma Intl
19h 00m
1 stop
SIN7:00 amSingapore Changi
$791
Find similar
Air Canada
Nov 21
SIN8:50 amSingapore Changi
26h 26m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
Nov 30
SEA10:05 amSeattle/Tacoma Intl
28h 55m
1 stop
SIN7:00 amSingapore Changi
$792
Find similar
Air Canada
Nov 21
SIN8:50 amSingapore Changi
16h 41m
1 stop
SEA9:31 amSeattle/Tacoma Intl
Nov 30
SEA10:05 amSeattle/Tacoma Intl
26h 50m
2 stops
SIN4:55 amSingapore Changi
$799
Find similar

Korean Air flights from Singapore to State of Washington

Our best Korean Air deals on Singapore to State of Washington flight tickets
Korean Air
Oct 18
SIN1:10 amSingapore Changi
24h 30m
1 stop
SEA10:40 amSeattle/Tacoma Intl
Oct 26
SEA12:00 pmSeattle/Tacoma Intl
21h 10m
1 stop
SIN12:10 amSingapore Changi
$790
Find similar
Korean Air
Oct 16
SIN1:10 amSingapore Changi
24h 30m
1 stop
SEA10:40 amSeattle/Tacoma Intl
Oct 24
SEA12:50 pmSeattle/Tacoma Intl
25h 10m
1 stop
SIN5:00 amSingapore Changi
$805
Find similar
Korean Air
Oct 23
SIN1:10 amSingapore Changi
24h 30m
1 stop
SEA10:40 amSeattle/Tacoma Intl
Nov 9
SEA11:00 amSeattle/Tacoma Intl
41h 25m
1 stop
SIN8:25 pmSingapore Changi
$810
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 September 4, 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

Wed 11/5

11:10 pm-1:55 pm

1 stop30h 45m

Seattle/Tacoma Intl

Sun 11/30

12:10 am-9:55 pm

1 stop29h 45m

$536

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/31

9:00 am-8:10 am

Nonstop14h 10m

Seattle/Tacoma Intl

Thu 2/12

8:45 am-5:45 pm

Nonstop17h 00m

$733

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/24

9:00 am-8:45 am

Nonstop14h 45m

Seattle/Tacoma Intl

Sun 11/9

9:30 pm-1:00 pm

1 stop23h 30m

$740

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/31

9:00 am-8:10 am

Nonstop14h 10m

Seattle/Tacoma Intl

Thu 2/12

9:30 pm-1:00 pm

1 stop23h 30m

$742

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 9/24

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Tue 10/7

1:15 am-12:40 pm

1 stop20h 25m

$779

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/24

8:45 am-4:24 pm

1 stop22h 39m

Seattle/Tacoma Intl

Sun 11/9

7:00 am-8:15 pm

1 stop21h 15m

$786

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 9/16

8:40 pm-12:07 pm

1 stop30h 27m

Seattle/Tacoma Intl

Sat 9/27

7:00 am-6:25 pm

1 stop20h 25m

$787

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/1

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Tue 10/7

1:15 am-12:40 pm

1 stop20h 25m

$814

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 10/2

1:10 pm-7:30 pm

1 stop21h 20m

Seattle/Tacoma Intl

Wed 10/8

1:30 am-12:00 pm

1 stop19h 30m

$822

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/31

3:45 pm-7:10 pm

1 stop18h 25m

Seattle/Tacoma Intl

Wed 2/11

12:10 am-2:30 pm

1 stop22h 20m

$833

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 February is, on average, the cheapest month to fly to State of Washington from Singapore, with most prices found around $855. If you aren’t able to travel to State of Washington during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $871.

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 Monday. Travelers who choose to depart for State of Washington on a Monday will often find tickets for as low as $1,040. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Singapore to State of Washington for around $1,655.

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 $1,299 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 $917 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 $819 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?

You could potentially save up to 2% on your flight if you consider stops on a Singapore to State of Washington flight.

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

1 airport
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 is 1 airport near State of Washington: Seattle/Tacoma Intl (SEA)
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  • 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
8,937 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $763Free CancellationRating
8.1
1,358 reviews
Search Singapore Airlines flights
EVA AirPriceFrom $779Free CancellationRating
8.4
1,235 reviews
Search EVA Air flights
STARLUX AirlinesPriceFrom $785Free CancellationRating
8.9
211 reviews
Search STARLUX 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

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