Cheap flights from Seattle to Southeast Asia from $280
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Southeast Asia departing on 11/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Southeast Asia
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
ANA flights from Seattle to Southeast Asia
Our best ANA deals on Seattle to Southeast Asia flight tickets
United Airlines flights from Seattle to Southeast Asia
Our best United Airlines deals on Seattle to Southeast Asia flight tickets
See travel insights to Southeast Asia from
How to get the cheapest flight ticket from Seattle to Southeast Asia
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 Southeast Asia?
The month of February is, on average, the cheapest month to fly to Southeast Asia from Seattle, with most prices found around $808. If you don’t want to visit Southeast Asia in February, then you should wait until March to fly from Seattle, when ticket prices are also cheap, with an average price of $823.
What is the cheapest day to depart on your flight to Southeast Asia?
The cheapest day to depart from Seattle to Southeast Asia is on a Tuesday when prices can be found for as low as $931. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,111. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.
What is the cheapest time of day to depart on your flight to Southeast Asia?
In the morning is the cheapest time of day to fly from Seattle to Southeast Asia when you can find flight prices for as low as $986. Flying to Southeast Asia in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $1,081. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Seattle/Tacoma Intl to Southeast Asia flight route?
Fly from Seattle/Tacoma Intl to Singapore Changi for the best Seattle/Tacoma Intl - Southeast Asia flight prices
How far in advance should I book a flight to Southeast Asia?
You are more likely to see cheaper flights to Southeast Asia from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $943 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Seattle for as low as $814 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Southeast Asia flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Southeast Asia 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 Seattle/Tacoma Intl to Southeast Asia?
Singapore Airlines, Korean Air, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Southeast Asia
What airlines fly to Southeast Asia?
Asiana Airlines, EVA Air and China Airlines are the top three most popular airlines that fly to Southeast Asia from Seattle according to our data. Asiana Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 19 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Southeast Asia on average per week?
As of July 2025, there are 3 flights per week flying from Seattle to Southeast Asia. The most common day of the week flights depart is Tue, with 33% of flights taking off on this day.
Cheap Seattle to Southeast Asia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Southeast Asia
Best Price Found | $280 |
|---|---|
Fastest flight time | 16h 20m |
Direct flights | Mon, Thu and Sat |
Airports in Southeast Asia | 7 airports |
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Southeast Asia?
Prices for flights from Seattle/Tacoma Intl Airport to Southeast Asia refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Southeast Asia?
As of July 2025, there are 18 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Southeast Asia.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Southeast Asia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The travel and health documents you'll need for your trip to Southeast Asia 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 Southeast Asia. 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 Seattle to Southeast Asia?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Southeast Asia is Boeing 737-900 Passenger/BBJ3 (winglets), representing 14.08% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 13.59%, Boeing 737 MAX 9 at 12.67%, and Airbus A321neo at 8.79%.
Best airlines flying from Seattle to Southeast Asia
Compare and see reviews for airlines that fly from Seattle to Southeast Asia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $433 | Free Cancellation | Rating 8.0 7,974 reviews | |||
| PriceFrom $587 | Free Cancellation | Rating 8.1 1,320 reviews | |||
| PriceFrom $633 | Free Cancellation | Rating 8.2 450 reviews | |||
| PriceFrom $682 | Free Cancellation | Rating 7.2 884 reviews | |||
| PriceFrom $687 | Free Cancellation | Rating 8.3 1,505 reviews | |||
| PriceFrom $688 | Free Cancellation | Rating 8.4 892 reviews | |||
| PriceFrom $691 | Free Cancellation | Rating 7.4 8,858 reviews | |||
| PriceFrom $695 | Free Cancellation | Rating 8.4 1,101 reviews | |||
| PriceFrom $710 | Free Cancellation | Rating 8.3 745 reviews | |||
| PriceFrom $712 | Free Cancellation | Rating 7.1 9,660 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Southeast Asia?
Finding the right flight to Southeast Asia from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Southeast Asia quick and easy, saving you time and money.
Can I find flights from Seattle to Southeast Asia with flexible booking policies on momondo?
Flights from Seattle to Southeast Asia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Southeast Asia?
momondo provides multiple filters to help you find the best flight to Southeast Asia from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Southeast Asia right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to Southeast Asia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.