S$ 515+ Cheap flights to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20-9. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
20 Aug — 27 Aug1
1 adult

Flights to Washington in 2025

Find the latest flights to Washington in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 15 August 2025.

Return from

S$ 781

One-way from

S$ 515

Popular in

August

Cheapest in

February

Average price

S$ 1,401

Good round-trip deal

S$ 1,434 or less
United Airlines
  • United Airlines
  • 27-8-30-8
  • 2 total stops
  • 53h 38m total
  • Singapore to Seattle
Philippine Airlines
  • Philippine Airlines
  • 20-9
  • 1 total stop
  • 33h 55m total
  • Singapore to Washington
Highest demand for flights based on searches. 4% potential increase in price (S$ 62 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (S$ 28 potential savings vs. average return price).
Average for return flights in August 2025
Price to beat on a round-trip flight from Singapore Changi to Washington.

Find flight deals to Washington

Cheapest flights to Washington
Explore the most affordable flight options available to Washington. Find the lowest fares based on data from user searches, with prices last updated on 15 August 2025.

Wed 27-808:45SIN - SEA
1 stop19h 48mUnited Airlines
Sat 30-817:35SEA - SIN
1 stop33h 50mUnited Airlines
Deal found 13-8S$ 781
Sat 20-900:20SIN - SEA
1 stop33h 55mPhilippine Airlines
Fri 24-1023:35SEA - SIN
1 stop28h 35mPhilippine Airlines
Deal found 14-8S$ 786
Tue 9-920:40SIN - SEA
1 stop30h 27mUnited Airlines
Wed 10-915:19SEA - SIN
1 stop23h 56mUnited Airlines
Deal found 15-8S$ 827
Fri 12-908:45SIN - SEA
1 stop19h 43mUnited Airlines
Wed 1-1007:00SEA - SIN
1 stop20h 25mUnited Airlines
Deal found 13-8S$ 832
Fri 5-908:45SIN - SEA
1 stop19h 43mUnited Airlines
Fri 12-917:35SEA - SIN
1 stop21h 40mUnited Airlines
Deal found 15-8S$ 833
Tue 19-808:45SIN - SEA
1 stop29h 14mUnited Airlines
Sun 31-813:05SEA - SIN
1 stop26h 10mUnited Airlines
Deal found 14-8S$ 835
Fri 15-808:45SIN - SEA
1 stop31h 14mUnited Airlines
Thu 28-817:35SEA - SIN
1 stop33h 50mUnited Airlines
Deal found 14-8S$ 837
Sun 28-920:40SIN - SEA
1 stop19h 19mUnited Airlines
Sun 5-1019:37SEA - SIN
1 stop19h 38mUnited Airlines
Deal found 14-8S$ 844
Thu 30-1014:45SIN - SEA
1 stop16h 20mSTARLUX Airlines
Sat 8-1123:45SEA - SIN
1 stop21h 40mSTARLUX Airlines
Deal found 14-8S$ 885
Sun 21-914:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Thu 23-1001:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 14-8S$ 886
Mon 15-914:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Sat 27-901:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 14-8S$ 901
Sun 28-914:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Sat 4-1001:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 14-8S$ 923

Cheapflights Fare Finder

 
Locate flights to Washington that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 15 August 2025.
Use the filters below to find and compare flights to Washington that are best for you.

Fly from

Singapore

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 27-8

08:45-13:33

1 stop19h 48m

Seattle/Tacoma Intl

Sat 30-8

17:35-18:25

1 stop33h 50m

S$ 781

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 20-9

00:20-19:15

1 stop33h 55m

Seattle/Tacoma Intl

Fri 24-10

23:35-19:10

1 stop28h 35m

S$ 786

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 9-9

20:40-12:07

1 stop30h 27m

Seattle/Tacoma Intl

Wed 10-9

15:19-06:15

1 stop23h 56m

S$ 827

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 12-9

08:45-15:14

1 stop21h 29m

Seattle/Tacoma Intl

Tue 30-9

15:28-06:15

1 stop23h 47m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 5-9

08:45-13:28

1 stop19h 43m

Seattle/Tacoma Intl

Fri 19-9

07:00-18:25

1 stop20h 25m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10-9

08:45-15:14

1 stop21h 29m

Seattle/Tacoma Intl

Wed 17-9

15:19-18:25

1 stop36h 06m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 15-10

08:45-16:24

1 stop22h 39m

Seattle/Tacoma Intl

Mon 10-11

07:00-08:00

1 stop33h 00m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 13-9

08:45-16:19

1 stop22h 34m

Seattle/Tacoma Intl

Mon 29-9

07:00-18:25

1 stop20h 25m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 6-9

08:45-13:28

1 stop19h 43m

Seattle/Tacoma Intl

Sat 20-9

07:00-18:25

1 stop20h 25m

S$ 832

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 11-9

20:40-18:49

1 stop37h 09m

Seattle/Tacoma Intl

Tue 23-9

19:34-18:25

1 stop31h 51m

S$ 832

Flights are sorted by cheapest return flights first.

Deals found on 14-8

Showing 1-10 of 32 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 20 hours 30 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.

When is the cheapest time to fly to Washington?

Use this chart to determine the cheapest time to fly return from Singapore to Washington. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Washington should consider flying on Friday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday mornings, when prices are usually at their highest.

What are the cheapest airlines that fly to Washington?

The cheapest airlines flying from Singapore to Washington are STARLUX Airlines, China Airlines and EVA Air.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals 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

Plan your trip to Washington by taking into account the average temperature totals 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).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 15 August 2025.
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
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
STARLUX Airlines
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful

Entertainment

8.9

Overall

9.0

Food

8.7

Comfort

8.9

Boarding

9.0

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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, STARLUX 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$ 107, while return flights cost around S$ 189.

  • How much is a return flight to Washington?

    A return flight to Washington will typically cost around S$ 203, however they can be found for as little as S$ 147.

  • 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. Seatac Inn is the closest property to Seattle/Tacoma Intl (0.0 km away from Seattle/Tacoma Intl).

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