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

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

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 31% 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 March 2026, there are 5 flights per week flying from Seattle to Southeast Asia. The most common day of the week flights depart is Tue, with 40% of flights taking off on this day.

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 March 2026, there are 16 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.

$270 Cheap Flights from Seattle to Southeast Asia in 2026

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Find the cheapest flights from Seattle to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 11:30 am

SEA

HAN

35h 15m

1 stop

4:00 pm - 8:45 am

HAN

SEA

30h 45m

1 stop

$498Singapore Airlines

Sat, Aug 15 - Wed, Sep 9

10:15 am - 2:50 pm

SEA

CEB

37h 35m

1 stop

3:40 pm - 8:45 am

CEB

SEA

32h 05m

1 stop

$517Singapore Airlines

Sat, Aug 22 - Sat, Oct 10

11:10 pm - 11:10 am

SEA

KUL

21h 00m

1 stop

12:20 pm - 8:05 pm

KUL

SEA

22h 45m

1 stop

$569Philippine Airlines

Sun, Apr 19 - Tue, May 5

12:55 am - 9:30 pm

SEA

SIN

29h 35m

1 stop

10:50 pm - 2:55 pm

SIN

SEA

31h 05m

1 stop

$583Asiana Airlines

Mon, Apr 6 - Wed, Jun 17

12:55 am - 12:15 pm

SEA

HAN

21h 20m

1 stop

1:25 pm - 2:55 pm

HAN

SEA

15h 30m

1 stop

$586Asiana Airlines

Sun, May 3 - Tue, May 12

11:10 pm - 11:10 am

SEA

KUL

21h 00m

1 stop

12:20 pm - 8:05 pm

KUL

SEA

22h 45m

1 stop

$594Philippine Airlines

Sun, Apr 26 - Tue, May 5

7:20 am - 11:30 pm

SEA

CEB

25h 10m

2 stops

1:00 am - 10:40 am

CEB

SEA

24h 40m

1 stop

$596Korean Air

Thu, Aug 27 - Wed, Sep 9

12:50 pm - 9:35 pm

SEA

HAN

18h 45m

1 stop

11:10 pm - 3:05 pm

HAN

SEA

29h 55m

2 stops

$604Korean Air

Mon, Apr 27 - Mon, May 11

7:12 am - 12:15 am

SEA

SGN

27h 03m

2 stops

11:15 pm - 2:25 pm

SGN

SEA

29h 10m

1 stop

$638ANA

Mon, Apr 13 - Mon, May 4

9:55 am - 12:05 am

SEA

KUL

23h 10m

2 stops

2:15 pm - 2:25 pm

KUL

SEA

39h 10m

1 stop

$699ANA

Wed, Jul 29 - Tue, Aug 11

Philippine Airlines flights from Seattle to Southeast Asia

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

Philippine Airlines

Apr 19

SEA11:10 pmSeattle/Tacoma Intl

21h 00m

1 stop

KUL11:10 amKuala Lumpur Intl

May 5

KUL12:20 pmKuala Lumpur Intl

22h 45m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$569

Philippine Airlines

Apr 26

SEA11:10 pmSeattle/Tacoma Intl

21h 00m

1 stop

KUL11:10 amKuala Lumpur Intl

May 5

KUL12:20 pmKuala Lumpur Intl

22h 45m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$594

Philippine Airlines

Apr 26

SEA11:10 pmSeattle/Tacoma Intl

33h 30m

1 stop

BKK10:40 pmBangkok Suvarnabhumi

May 11

BKK11:40 pmBangkok Suvarnabhumi

34h 25m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

$622

Asiana Airlines flights from Seattle to Southeast Asia

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

Asiana Airlines

Apr 6

SEA12:55 amSeattle/Tacoma Intl

29h 35m

1 stop

SIN9:30 pmSingapore Changi

Jun 17

SIN10:50 pmSingapore Changi

31h 05m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$583

Asiana Airlines

May 3

SEA12:55 amSeattle/Tacoma Intl

21h 20m

1 stop

HAN12:15 pmHanoi Noibai

May 12

HAN1:25 pmHanoi Noibai

15h 30m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$586

Asiana Airlines

Apr 6

SEA12:55 amSeattle/Tacoma Intl

29h 35m

1 stop

SIN9:30 pmSingapore Changi

Jun 17

SIN10:50 pmSingapore Changi

31h 05m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$589

Fly from

Fly to

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sat 8/15

10:15 am-11:30 am

1 stop35h 15m

Hanoi Noibai

Wed 9/9

4:00 pm-8:45 am

1 stop30h 45m

$498

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Sat 8/22

10:15 am-2:50 pm

1 stop37h 35m

Cebu City Mactan Intl

Sat 10/10

3:40 pm-8:45 am

1 stop32h 05m

$517

SeattleKuala Lumpur

SEA - KUL

SEAKUL

Seattle/Tacoma Intl

Sun 4/19

11:10 pm-11:10 am

1 stop21h 00m

Kuala Lumpur Intl

Tue 5/5

12:20 pm-8:05 pm

1 stop22h 45m

$569

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 4/6

12:55 am-9:30 pm

1 stop29h 35m

Singapore Changi

Wed 6/17

10:50 pm-2:55 pm

1 stop31h 05m

$583

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 5/3

12:55 am-12:15 pm

1 stop21h 20m

Hanoi Noibai

Tue 5/12

1:25 pm-2:55 pm

1 stop15h 30m

$586

SeattleKuala Lumpur

SEA - KUL

SEAKUL

Seattle/Tacoma Intl

Sun 4/26

11:10 pm-11:10 am

1 stop21h 00m

Kuala Lumpur Intl

Tue 5/5

12:20 pm-8:05 pm

1 stop22h 45m

$594

SeattleCebu City

SEA - CEB

SEACEB

Seattle/Tacoma Intl

Thu 8/27

7:20 am-11:30 pm

2 stops25h 10m

Cebu City Mactan Intl

Wed 9/9

1:00 am-10:40 am

1 stop24h 40m

$596

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 4/27

12:50 pm-9:35 pm

1 stop18h 45m

Hanoi Noibai

Mon 5/11

11:10 pm-3:05 pm

2 stops29h 55m

$604

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 4/13

7:12 am-12:15 am

2 stops27h 03m

Ho Chi Minh City

Mon 5/4

11:15 pm-2:25 pm

1 stop29h 10m

$638

SeattleKuala Lumpur

SEA - KUL

SEAKUL

Seattle/Tacoma Intl

Wed 7/29

9:55 am-12:05 am

2 stops23h 10m

Kuala Lumpur Intl

Tue 8/11

2:15 pm-2:25 pm

1 stop39h 10m

$699

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 $748. 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 $764.

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 $873 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 $715 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 March 2026, there are 16 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 15.59% of all bookings. The subsequent popular models are Airbus A321neo at 11.55%, Boeing 787-9 Dreamliner at 8.87%, and Boeing 737-900 at 7.01%.

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
Philippine Airlines	PriceFrom $154	Free Cancellation	Rating 7.3 963 reviews	Search Philippine Airlines flights
Korean Air	PriceFrom $418	Free Cancellation	Rating 8.4 1,195 reviews	Search Korean Air flights
United Airlines	PriceFrom $440	Free Cancellation	Rating 7.4 9,380 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $500	Free Cancellation	Rating 8.2 1,465 reviews	Search Singapore Airlines flights
Delta	PriceFrom $544	Free Cancellation	Rating 7.9 8,242 reviews	Search Delta flights
Cathay Pacific	PriceFrom $604	Free Cancellation	Rating 7.6 1,186 reviews	Search Cathay Pacific flights
Asiana Airlines	PriceFrom $605	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
Air Canada	PriceFrom $660	Free Cancellation	Rating 7.1 10,770 reviews	Search Air Canada flights
China Airlines	PriceFrom $669	Free Cancellation	Rating 8.3 809 reviews	Search China Airlines flights
ANA	PriceFrom $681	Free Cancellation	Rating 8.4 1,108 reviews	Search ANA 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.