Cheap flights from Washington to Singapore from $349
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Singapore departing on 9/14. 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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How to get the cheapest flight ticket from State of Washington to Singapore
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 Singapore?
The month of February is, on average, the cheapest month to fly to Singapore from State of Washington, with most prices found around $794. If you aren’t able to travel to Singapore during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $827.
What is the cheapest day to depart on your flight to Singapore?
The cheapest day to depart from State of Washington to Singapore is on a Tuesday when prices can be found for as low as $1,095. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $1,204.
What is the cheapest time of day to depart on your flight to Singapore?
At noon is the cheapest time of day to fly from State of Washington to Singapore when you can find flight prices for as low as $1,089. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,226 on average. Flights to Singapore from State of Washington in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Washington to Singapore flight route?
Fly from Seattle/Tacoma Intl to Singapore Changi for the best Washington - Singapore flight prices
How far in advance should I book a flight to Singapore?
You are more likely to see cheaper flights to Singapore from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $994 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from State of Washington for as low as $832 on momondo.
What cabin class options are available on Washington to Singapore flights?
There are 4 cabin classes available to choose from on Washington to Singapore flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Washington to Singapore?
Singapore Airlines, Asiana Airlines, and Korean Air are the most popular carriers operating from Washington to Singapore
What airlines fly to Singapore?
Singapore Airlines, United Airlines and Air Canada are the top three most popular airlines that fly to Singapore from State of Washington according to our data. Singapore Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 13 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.
How many flights depart from State of Washington to Singapore on average per week?
The number of flights available between State of Washington and Singapore is 3 per week as of June 2025. The most frequent departure day is Tue, with 33% of weekly flights leaving on this day.
Cheap State of Washington to Singapore flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from State of Washington to Singapore
Best Price Found | $349 |
|---|---|
Fastest flight time | 16h 20m |
Direct flights | Mon, Wed, Fri, Sat and Sun |
Airports in Singapore | 1 airport |
When did momondo last update prices for flights from Washington to Singapore?
Prices for flights from Washington to Singapore are updated daily.
How many operators does momondo search for flights from Washington to Singapore?
As of June 2025, there are 13 operators available to choose from for flights from Washington to Singapore.
How old do you have to be to fly from Washington to Singapore?
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 Washington to Singapore.
What documentation or ID do you need to fly to Singapore?
The required travel and health documents for your Singapore trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from State of Washington to Singapore?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Singapore is Airbus A350-900, representing 77.88% of all bookings. The subsequent popular models are Boeing 777-300 at 15.49%, Boeing 787-9 Dreamliner at 2.65%, and Boeing 777-300ER at 1.33%.
Best airlines flying from State of Washington to Singapore
Compare and see reviews for airlines that fly from State of Washington to Singapore with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $683 | Free Cancellation | Rating 8.1 1,310 reviews | |||
| PriceFrom $692 | Free Cancellation | Rating 8.2 441 reviews | |||
| PriceFrom $694 | Free Cancellation | Rating 7.2 875 reviews | |||
| PriceFrom $703 | Free Cancellation | Rating 8.3 1,494 reviews | |||
| PriceFrom $725 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $727 | Free Cancellation | Rating 7.1 9,572 reviews | |||
| PriceFrom $728 | Free Cancellation | Rating 8.4 1,090 reviews | |||
| PriceFrom $750 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $933 | Free Cancellation | Rating 8.3 742 reviews | |||
| PriceFrom $966 | Free Cancellation | Rating 9.1 180 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington to Singapore?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Singapore. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Washington to Singapore with flexible booking policies on momondo?
All flight searches from Washington to Singapore on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington to Singapore?
Once all potential Washington to Singapore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Washington to Singapore right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Singapore from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.