S$ 633+ Cheap flights to Washington

— SEA
30 Sep — 7 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to Washington in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Washington

Tue 13-1009:00 -
Nonstop14h 45m
Tue 20-1019:15 -
1 stop19h 00m
Deal found 28-8S$ 1,009
Sun 11-1007:00 -
1 stop18h 05m
Sun 18-1019:15 -
1 stop19h 00m
Deal found 27-8S$ 1,018
Tue 20-1007:00 -
1 stop22h 22m
Wed 28-1015:15 -
1 stop24h 45m
Deal found 31-8S$ 1,039
Tue 13-1007:00 -
1 stop18h 05m
Tue 20-1015:00 -
1 stop23h 15m
Deal found 27-8S$ 1,041
Sat 10-1007:00 -
1 stop18h 05m
Sun 25-1008:40 -
1 stop31h 20m
Deal found 27-8S$ 1,042
Thu 29-1008:40 -
1 stop20h 57m
Fri 13-1115:15 -
1 stop23h 45m
Deal found 27-8S$ 1,044
Sun 13-907:00 -
1 stop27h 11m
Sun 27-915:30 -
1 stop22h 45m
Deal found 30-8S$ 1,132
Sat 3-1007:00 -
1 stop27h 11m
Sun 18-1019:45 -
1 stop18h 30m
Deal found 27-8S$ 1,136
Sun 11-1007:00 -
1 stop22h 46m
Sun 18-1015:30 -
1 stop22h 45m
Deal found 26-8S$ 1,183
Sat 3-1007:30 -
2 stops22h 11m
Sun 18-1007:05 -
2 stops30h 55m
Deal found 27-8S$ 1,212
Thu 17-1208:40 -
2 stops56h 07m
Tue 29-1210:00 -
1 stop29h 00m
Deal found 28-8S$ 1,253
Tue 8-907:30 -
2 stops24h 40m
Wed 30-909:51 -
2 stops23h 04m
Deal found 29-8S$ 1,271

Find flights to Washington

Explore Washington

Find flight deals to Washington

Return from

S$ 1,009

One-way from

S$ 633

Popular in

April

Cheapest in

November

Average price

S$ 1,253

Good round-trip deal

S$ 1,290 or less
Air Canada
  • Air Canada
  • 13-10-20-10
  • 1 total stop
  • 33h 45m total
  • Singapore to Seattle
Air Canada
  • Air Canada
  • 22-10
  • 1 total stop
  • 30h 47m total
  • Singapore to Washington
Highest demand for flights based on searches. 1% potential increase in price (S$ 19 potential increase over avg. return price).
Cheapest flight prices on average. 0% potential price decrease (S$ 11 potential savings vs. average return price).
Average for return flights in August 2026
Price to beat on a round-trip flight from Singapore Changi to Washington.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Washington that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Fri 9-10

14:00-16:10

1 stop17h 10m

Seattle/Tacoma Intl

Sat 24-10

00:45-13:25

1 stop21h 40m

S$ 1,092

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Sun 4-10

02:00-19:15

1 stop32h 15m

Seattle/Tacoma Intl

Tue 6-10

01:15-12:30

1 stop20h 15m

S$ 1,115

SingaporePortland

SIN Singapore Changi - PDX Portland

SINPDX

Singapore Changi

Sat 3-10

07:00-19:11

1 stop27h 11m

Portland

Sun 18-10

19:45-05:15

1 stop18h 30m

S$ 1,136

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Thu 17-9

21:00-22:37

2 stops40h 37m

Seattle/Tacoma Intl

Thu 15-10

17:39-09:40

2 stops49h 01m

S$ 1,175

SingaporePortland

SIN Singapore Changi - PDX Portland

SINPDX

Singapore Changi

Sun 11-10

07:00-14:46

1 stop22h 46m

Portland

Sun 18-10

15:30-05:15

1 stop22h 45m

S$ 1,183
Fastest return journey

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Fri 16-10

09:00-08:45

Nonstop14h 45m

Seattle/Tacoma Intl

Sat 24-10

10:15-17:35

Nonstop16h 20m

S$ 1,186

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Sun 11-10

21:00-22:42

2 stops40h 42m

Seattle/Tacoma Intl

Sun 18-10

17:39-09:40

2 stops49h 01m

S$ 1,186

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Sat 10-10

09:00-08:45

Nonstop14h 45m

Seattle/Tacoma Intl

Sun 25-10

09:40-17:45

Nonstop17h 05m

S$ 1,186

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Wed 14-10

21:00-22:42

2 stops40h 42m

Seattle/Tacoma Intl

Tue 20-10

00:10-21:30

1 stop30h 20m

S$ 1,189

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Fri 9-10

08:05-10:35

1 stop17h 30m

Seattle/Tacoma Intl

Mon 26-10

06:39-06:40

2 stops33h 01m

S$ 1,194

Flights are sorted by cheapest return flights first.

Deals found on 31-8

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to Washington

How long is the flight to Washington?

On average, a flight from Singapore to Washington takes 19 hours 13 minutes. Flights to Washington from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Washington?

The cheapest airlines flying from Singapore to Washington are MIAT Mongolian, Singapore Airlines and Air China.

Rainfall in Washington by month

In terms of precipitation, rainfall in Washington ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

If weather is an important factor for your trip to Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

When is the best time to book a flight to Washington?

The price you pay for your flight to Washington may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Washington

See what other customers who have flown with STARLUX Airlines,EVA Air, andChina Airlines to the United States have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.7
Very Good
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.7
Very Good

Comfort

8.8

Food

8.5

Overall

8.7

Boarding

8.8

Crew

9.1

Entertainment

8.7

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

FAQs about flying to Washington

Washington climate

Washington has two main climates: west and east of the Cascades. The west is typically mild and wet, the east cool and dry. Seattle temperatures generally range from the very low single digits in January to about 20 degrees (Celsius) in July; Spokane from about minus six in January to about 20 in July.Most rain falls October through March. The western side of the Olympic Peninsula receives up to 406cm (160 inches) of rain annually, and the western slopes of the Cascades over 500cm (200 inches) of snow. Eastern Washington has only about 15cm (six inches) of precipitation, with more closer to the Rocky Mountains.

Getting around Washington

With several regional airports, flying within Washington is easy and discount fares are available. There is train service north and south of Seattle and bus service to Spokane and beyond. Washington has the most extensive ferry service in the country, and it includes transport to the San Juan Islands, Bainbridge Island, Whidbey Island, Vashon Island, and Kitsap Peninsula. A car or RV is a great way to see the state and the only way to get to some of the more remote locations. Make sure to fill the gas tank first — Washington is a large state, and gas stations are few and far between in some areas.

Seattle is fun to explore on foot and is well served by the Metro system. The Downtown Ride Free Area has free bus service from 6am to 7pm. To travel across the sound, choose from ferries, speedboats, water taxis, and jet catamarans. Seattle is a difficult city for driving, with bad traffic congestion, one-way streets, and scarce and expensive parking.

Hiking is the best mode of transport in Olympic National Park. A great state for hiking, Washington’s popular trails include the Pacific Crest Trail, Hoh River Trail, and Wonderland Trail.

What is good to know if travelling to Washington?

  • The small town of Starbuck in Columbia County is not the home of Starbucks, the global coffee company. That’s Pike Place, a downtown Seattle market. Other “liquid” attractions are microbreweries Red Hook Brewery in Woodinville (there are tours) and Yakima Brewing and Malting Co.
  • Leavenworth is a Bavarian village in the foothills of the Cascade Mountains. In the 1960s, the town decided to go Bavarian to stave off economic meltdown. Stores were remodelled and festivals launched including the Autumn Leaf Festival, the Christmas Lighting and the Maifest. Enjoy the Germanic fare such as wiener schnitzel and sauerbraten or pick up a cuckoo clock.
  • Tatoosh Island, about a half mile off Cape Flattery (the most north-westerly point in the continental US) on the Olympic Peninsula is part of the Makah Indian Reservation. Nobody lives on the island, but has a very nice lighthouse, which looks over the entrance to the Strait of Juan de Fuca and lots and lots of birds.
  • Olympic National Park has glacier-capped mountains, almost 96km (60 miles) of wild Pacific coast and old-growth rain forest. The star of the park is Mount Olympus which stands at 2,427 metres (7,962 feet). There are three national parks in Washington State: Olympic National Park, Mount Rainier National ParkNorth Cascades National Park.
  • The four main San Juan Islands – served by Washington State Ferries – are Lopez, Orcas, San Juan and Shaw, although hundreds of islands and islets make up the archipelago. San Juan boasts the Whale Museum and there are the ruins of the British and American forts in San Juan Island National Historic Park.
  • Snoqualmie Falls is famous to fans of 1990s’ super series Twin Peaks. The falls rush down 82 metres (270 feet). Near the top of the falls is the Salish Lodge, which also featured in the programme.
  • When is the best time to fly to Washington?

    Peak Season: Summer is Washington’s high season, with July and August the busiest months. Seattle hosts outdoor festivals mid-May to September (Labour Day), the San Juan Islands are mobbed, and the parks are filled. Tourism peaks again in winter with snow-sport enthusiasts. Off Season: October to April, is the rainy season. Hotel rates are lower and Seattle’s performing arts are in full season. September weekdays are great times to visit: the weather is still pleasant and crowds are smaller. In autumn and winter, the eastern side of the Olympic Peninsula tends to be dry. Spring is the favourite time for whitewater rafters catching the winter runoff.

  • Can I find cheaper flights to Washington if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Washington?

    Based on reviews from Cheapflights users, China Airlines is rated the highest out of the airlines that fly to Washington.

  • What is the cheapest airport to fly to in Washington?

    Seattle/Tacoma Intl is currently the cheapest airport to fly to in Washington. One-way flights to Seattle/Tacoma Intl typically cost S$ 158, while return flights cost around S$ 1,267.

  • How much is a return flight to Washington?

    A return flight to Washington will typically cost around S$ 1,290, however they can be found for as little as S$ 1,267.

  • Where does the fastest flight to Washington depart from?

    For those looking to save time traveling to Washington, Singapore Changi offers the quickest one-way flight (14 hours 10 minutes).

  • Does Seattle/Tacoma Intl have rental cars?

    Yes. Those touching down at Seattle/Tacoma Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Seattle/Tacoma Intl?

    Yes. Seattle/Tacoma Intl has hotels nearby for those requiring accommodations. Serene 3-bedroom house perfect for relaxing stays in SeaTac, Burien, Seattle is the closest property to Seattle/Tacoma Intl (0.0 km away from Seattle/Tacoma Intl).

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