What airlines fly to Southeast Asia?

Asiana Airlines, EVA Air and Philippine 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 32% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 17 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 December 2025, there are 9 flights per week flying from Seattle to Southeast Asia. The most common day of the week flights depart is Tue, with 22% of flights taking off on this day.

How many flights depart from Seattle to Southeast Asia on average per day?

1 flights are operational daily from Seattle to Southeast Asia as of December 2025. The most popular departure time for this route is 8:00AM, with 50% of flights per day taking off at noon.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Southeast Asia?

Singapore Airlines, Philippine Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Southeast Asia

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 December 2025, there are 17 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.

$265 Cheap Flights from Seattle to Southeast Asia in 2025/26

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Cheap round-trip flights

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9:45 am - 2:05 pm

SEA

HKT

38h 20m1 stop

9:55 am - 8:45 am

HKT

SEA

36h 50m1 stop

$594Singapore Airlines

Sun, Mar 15 - Wed, Apr 15

8:45 am - 9:15 am

SEA

HKT

33h 30m1 stop

8:40 am - 7:10 am

HKT

SEA

37h 30m1 stop

$610Singapore Airlines

Tue, Feb 3 - Thu, Feb 12

12:10 am - 12:45 am

SEA

CEB

32h 35m1 stop

1:50 am - 1:55 pm

CEB

SEA

28h 05m1 stop

$611Asiana Airlines

Mon, Jan 26 - Sat, Feb 7

12:10 am - 12:45 am

SEA

CEB

32h 35m1 stop

1:50 am - 1:55 pm

CEB

SEA

28h 05m1 stop

$612Asiana Airlines

Sun, Jan 18 - Thu, Feb 5

12:10 am - 12:45 am

SEA

CEB

32h 35m1 stop

1:50 am - 1:55 pm

CEB

SEA

28h 05m1 stop

$619Asiana Airlines

Wed, Jan 14 - Sat, Jan 24

12:10 am - 10:00 am

SEA

SGN

18h 50m1 stop

11:00 am - 7:10 pm

SGN

SEA

22h 10m1 stop

$680China Airlines

Mon, Mar 2 - Tue, Mar 24

1:15 am - 4:30 pm

SEA

DAD

25h 15m1 stop

5:30 pm - 7:15 pm

DAD

SEA

15h 45m1 stop

$680China Airlines

Sun, May 3 - Tue, May 19

11:10 pm - 11:55 pm

SEA

DPS

33h 45m1 stop

12:55 am - 8:05 pm

DPS

SEA

34h 10m1 stop

$708Philippine Airlines

Thu, Apr 23 - Wed, Apr 29

12:10 am - 5:50 pm

SEA

MNL

25h 40m1 stop

6:50 pm - 6:10 pm

MNL

SEA

15h 20m1 stop

$709EVA Air

Wed, Jan 28 - Tue, Feb 17

11:10 pm - 11:55 pm

SEA

DPS

33h 45m1 stop

12:55 am - 8:05 pm

DPS

SEA

34h 10m1 stop

$723Philippine Airlines

Tue, Apr 7 - Mon, Apr 13

Philippine Airlines flights from Seattle to Southeast Asia

Our best Philippine Airlines deals on Seattle to Southeast Asia flight tickets

Philippine Airlines

Mar 19

SEA10:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

May 21

BKK1:25 pmBangkok Suvarnabhumi

20h 40m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$682

Find similar

Philippine Airlines

Mar 6

SEA9:30 pmSeattle/Tacoma Intl

34h 30m

1 stop

BKK11:00 pmBangkok Suvarnabhumi

Mar 24

BKK1:20 pmBangkok Suvarnabhumi

20h 20m

1 stop

SEA7:40 pmSeattle/Tacoma Intl

$683

Find similar

Philippine Airlines

Mar 25

SEA10:30 pmSeattle/Tacoma Intl

14h 35m

MNL4:05 amManila Ninoy Aquino Intl

Apr 8

MNL10:35 pmManila Ninoy Aquino Intl

12h 30m

SEA8:05 pmSeattle/Tacoma Intl

$751

Find similar

Japan Airlines flights from Seattle to Southeast Asia

Our best Japan Airlines deals on Seattle to Southeast Asia flight tickets

Japan Airlines

Jan 25

SEA8:25 amSeattle/Tacoma Intl

41h 00m

2 stops

BKK4:25 pmBangkok Suvarnabhumi

Feb 2

BKK8:05 amBangkok Suvarnabhumi

23h 42m

2 stops

SEA4:47 pmSeattle/Tacoma Intl

$688

Find similar

Japan Airlines

Jan 27

SEA11:43 amSeattle/Tacoma Intl

61h 42m

2 stops

BKK4:25 pmBangkok Suvarnabhumi

Feb 9

BKK8:05 amBangkok Suvarnabhumi

16h 50m

1 stop

SEA9:55 amSeattle/Tacoma Intl

$695

Find similar

Japan Airlines

Jan 27

SEA8:25 amSeattle/Tacoma Intl

29h 40m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Feb 9

BKK10:05 pmBangkok Suvarnabhumi

33h 42m

2 stops

SEA4:47 pmSeattle/Tacoma Intl

$697

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Sun 3/15

9:45 am-2:05 pm

1 stop38h 20m

Phuket City

Wed 4/15

9:55 am-8:45 am

1 stop36h 50m

$594

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Tue 2/3

8:45 am-9:15 am

1 stop33h 30m

Phuket City

Thu 2/12

8:40 am-7:10 am

1 stop37h 30m

$610

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Mon 1/26

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Sat 2/7

1:50 am-1:55 pm

1 stop28h 05m

$611

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sun 1/18

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Thu 2/5

1:50 am-1:55 pm

1 stop28h 05m

$612

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Wed 1/14

12:10 am-12:45 am

1 stop32h 35m

Cebu City Mactan Intl

Sat 1/24

1:50 am-1:55 pm

1 stop28h 05m

$619

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 3/2

12:10 am-10:00 am

1 stop18h 50m

Ho Chi Minh City

Tue 3/24

11:00 am-7:10 pm

1 stop22h 10m

$680

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Sun 5/3

1:15 am-4:30 pm

1 stop25h 15m

Da Nang

Tue 5/19

5:30 pm-7:15 pm

1 stop15h 45m

$680

SeattleDenpasar

SEA - DPS

SEADPS

Seattle/Tacoma Intl

Thu 4/23

11:10 pm-11:55 pm

1 stop33h 45m

Denpasar Bali Ngurah Rai

Wed 4/29

12:55 am-8:05 pm

1 stop34h 10m

$708

SeattleManila

SEA - MNL

SEAMNL

Seattle/Tacoma Intl

Wed 1/28

12:10 am-5:50 pm

1 stop25h 40m

Manila Ninoy Aquino Intl

Tue 2/17

6:50 pm-6:10 pm

1 stop15h 20m

$709

SeattleDenpasar

SEA - DPS

SEADPS

Seattle/Tacoma Intl

Tue 4/7

11:10 pm-11:55 pm

1 stop33h 45m

Denpasar Bali Ngurah Rai

Mon 4/13

12:55 am-8:05 pm

1 stop34h 10m

$723

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The month of September is, on average, the cheapest month to fly to Southeast Asia from Seattle, with most prices found around $751. If you don’t want to visit Southeast Asia in September, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $759.

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 $893 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 $750 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Southeast Asia flights?

There are 3 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.

Can stopping save me money on Seattle to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Seattle to Southeast Asia.

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

Fastest flight time	13h 50m
Direct flights	Mon, Wed, Thu, Fri and Sat
Airports in Southeast Asia	295 airports

The fastest flight from Seattle to Southeast Asia takes 13h 50m

Direct flights go from Seattle to Southeast Asia on Monday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

There are 295 airports in Southeast Asia. From Seattle there are direct flights to Manila Ninoy Aquino Intl (MNL).

Search flight deals

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 December 2025, there are 17 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 737-800 Passenger/BBJ2 (winglets), representing 14.87% of all bookings. The subsequent popular models are Airbus A321neo at 12.30%, Boeing 737-900 at 8.61%, and Boeing 787-9 Dreamliner at 8.33%.

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
Delta	PriceFrom $433	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
United Airlines	PriceFrom $459	Free Cancellation	Rating 7.4 9,107 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $509	Free Cancellation	Rating 8.1 1,419 reviews	Search Singapore Airlines flights
Philippine Airlines	PriceFrom $544	Free Cancellation	Rating 7.3 943 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $611	Free Cancellation	Rating 8.2 499 reviews	Search Asiana Airlines flights
Cathay Pacific	PriceFrom $622	Free Cancellation	Rating 7.6 1,103 reviews	Search Cathay Pacific flights
Air Canada	PriceFrom $661	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
China Airlines	PriceFrom $682	Free Cancellation	Rating 8.3 792 reviews	Search China Airlines flights
Korean Air	PriceFrom $685	Free Cancellation	Rating 8.4 1,185 reviews	Search Korean Air flights
Japan Airlines	PriceFrom $687	Free Cancellation	Rating 8.3 1,662 reviews	Search Japan Airlines flights

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.

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Southeast Asia

Popular cities in Southeast Asia

Flights to New Yorkfrom $50

Flights to Londonfrom $337

Flights to Bangkokfrom $526

Flights to Tokyofrom $455

Flights to Los Angelesfrom $49

Flights to Parisfrom $353

Flights to Copenhagenfrom $382

Flights to Istanbulfrom $433

Flights to Manilafrom $545

Flights to Romefrom $260

Flights to Miamifrom $50

Flights to Chicagofrom $51

Cheap flights from Seattle to Southeast Asia from $265

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 3/22. 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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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Seattle to Southeast Asia

Cheap round-trip flights

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Philippine Airlines flights from Seattle to Southeast Asia

Our best Philippine Airlines deals on Seattle to Southeast Asia flight tickets

Japan Airlines flights from Seattle to Southeast Asia

Our best Japan Airlines deals on Seattle to Southeast Asia flight tickets

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Use the filters below to find and compare flights from Seattle to Southeast Asia that are best for you.

See travel insights to Southeast Asia from

How to get the cheapest flight ticket from Seattle to Southeast Asia

What is the cheapest month to fly to Southeast Asia?

What is the cheapest day to depart on your flight to Southeast Asia?

What is the cheapest time of day to depart on your flight to Southeast Asia?

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?

What cabin class options are available on Seattle/Tacoma Intl to Southeast Asia flights?

There are 3 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.

Can stopping save me money on Seattle to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Seattle to Southeast Asia.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Southeast Asia?

Singapore Airlines, Philippine Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Southeast Asia

What airlines fly to Southeast Asia?

How many flights depart from Seattle to Southeast Asia on average per day?

1 flights are operational daily from Seattle to Southeast Asia as of December 2025. The most popular departure time for this route is 8:00AM, with 50% of flights per day taking off at noon.

How many flights depart from Seattle to Southeast Asia on average per week?

As of December 2025, there are 9 flights per week flying from Seattle to Southeast Asia. The most common day of the week flights depart is Tue, with 22% 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

Fastest flight time

Direct flights

Airports in Southeast Asia

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Southeast Asia?

How many operators does momondo search 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?

What documentation or ID do you need to fly to Southeast Asia?

What is the most popular plane model from Seattle to Southeast Asia?

Best airlines flying from Seattle to Southeast Asia

Compare and see reviews for airlines that fly from Seattle to Southeast Asia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Southeast Asia?

Can I find flights from Seattle to Southeast Asia with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Southeast Asia?

I’m not ready to book a flight from Seattle to Southeast Asia right now. Can momondo alert me if prices change?

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Southeast Asia

Popular cities in Southeast Asia

Popular flights according to clicks in the last 7 days on momondo