What is the cheapest airline that flies from Washington to Hanoi Noibai?

Philippine Airlines and STARLUX Airlines are the most popular carriers operating from Washington to Hanoi Noibai

What airlines fly to Hanoi?

EVA Air, Asiana Airlines and China Airlines are the top three most popular airlines that fly to Hanoi from State of Washington according to our data. EVA Air is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Hanoi. Keep in mind that there are 8 different airlines that fly to Hanoi on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington to Hanoi Noibai Airport?

Prices for flights from Washington to Hanoi Noibai Airport were last updated today.

How many operators does momondo search for flights from Washington to Hanoi Noibai Airport?

As of February 2026, there are 8 operators available to choose from for flights from Washington to Hanoi Noibai Airport.

How old do you have to be to fly from Washington to Hanoi Noibai Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Hanoi Noibai Airport.

What documentation or ID do you need to fly to Hanoi Noibai Airport?

The necessary travel and health documents for your Hanoi Noibai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$273 Cheap Flights from Washington to Hanoi in 2026

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Find the cheapest flights from Washington to Hanoi

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 5:40 pm

SEA

HAN

41h 25m

1 stop

6:30 pm - 8:45 am

HAN

SEA

28h 15m

1 stop

$509Singapore Airlines

Fri, May 8 - Thu, May 14

11:45 am - 9:55 am

SEA

HAN

32h 10m

1 stop

7:10 pm - 10:05 am

HAN

SEA

28h 55m

1 stop

$620Cathay Pacific

Mon, Apr 27 - Tue, May 5

11:45 am - 9:55 am

SEA

HAN

32h 10m

1 stop

7:10 pm - 10:05 am

HAN

SEA

28h 55m

1 stop

$622Cathay Pacific

Mon, Apr 27 - Tue, May 5

12:55 am - 10:00 pm

SEA

HAN

31h 05m

1 stop

1:25 pm - 2:55 pm

HAN

SEA

15h 30m

1 stop

$624Asiana Airlines

Sun, May 3 - Tue, May 12

12:55 am - 10:00 pm

SEA

HAN

31h 05m

1 stop

1:25 pm - 2:55 pm

HAN

SEA

15h 30m

1 stop

$625Asiana Airlines

Sun, May 3 - Tue, May 12

11:45 am - 9:55 am

SEA

HAN

32h 10m

1 stop

7:10 pm - 10:05 am

HAN

SEA

28h 55m

1 stop

$626Cathay Pacific

Thu, Apr 30 - Tue, May 19

7:59 pm - 9:35 pm

SEA

HAN

35h 36m

2 stops

12:05 pm - 6:26 pm

HAN

SEA

44h 21m

2 stops

$646Korean Air

Sun, Apr 5 - Tue, Apr 14

7:59 pm - 9:35 pm

SEA

HAN

35h 36m

2 stops

11:10 pm - 10:40 am

HAN

SEA

25h 30m

1 stop

$655Korean Air

Thu, Apr 9 - Tue, Apr 21

8:30 pm - 10:30 am

PDX

HAN

24h 00m

2 stops

5:50 pm - 11:03 pm

HAN

PDX

19h 13m

2 stops

$812Multiple Airlines

Mon, May 4 - Thu, May 14

5:45 pm - 10:10 am

PDX

HAN

26h 25m

2 stops

5:50 pm - 7:34 pm

HAN

PDX

39h 44m

2 stops

$827STARLUX Airlines

Wed, Apr 8 - Wed, Apr 22

Singapore Airlines flights from State of Washington to Hanoi

Our best Singapore Airlines deals on State of Washington to Hanoi flight tickets

Singapore Airlines

May 8

SEA10:15 amSeattle/Tacoma Intl

41h 25m

1 stop

HAN5:40 pmHanoi Noibai

May 14

HAN6:30 pmHanoi Noibai

28h 15m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$509

Singapore Airlines

May 8

SEA10:15 amSeattle/Tacoma Intl

35h 15m

1 stop

HAN11:30 amHanoi Noibai

May 15

HAN3:20 pmHanoi Noibai

31h 25m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$701

Singapore Airlines

May 8

SEA10:15 amSeattle/Tacoma Intl

41h 25m

1 stop

HAN5:40 pmHanoi Noibai

May 24

HAN12:40 pmHanoi Noibai

58h 05m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$705

Cathay Pacific flights from State of Washington to Hanoi

Our best Cathay Pacific deals on State of Washington to Hanoi flight tickets

Cathay Pacific

Apr 27

SEA11:45 amSeattle/Tacoma Intl

32h 10m

1 stop

HAN9:55 amHanoi Noibai

May 5

HAN7:10 pmHanoi Noibai

28h 55m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$622

Cathay Pacific

Apr 30

SEA11:45 amSeattle/Tacoma Intl

32h 10m

1 stop

HAN9:55 amHanoi Noibai

May 19

HAN7:10 pmHanoi Noibai

28h 55m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$626

Cathay Pacific

May 4

SEA3:53 pmSeattle/Tacoma Intl

28h 02m

2 stops

HAN9:55 amHanoi Noibai

May 12

HAN7:10 pmHanoi Noibai

28h 55m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$695

Fly from

Fly to

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 5/8

10:15 am-5:40 pm

1 stop41h 25m

Hanoi Noibai

Thu 5/14

6:30 pm-8:45 am

1 stop28h 15m

$509

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 4/27

11:45 am-9:55 am

1 stop32h 10m

Hanoi Noibai

Tue 5/5

7:10 pm-10:05 am

1 stop28h 55m

$620

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 4/27

11:45 am-9:55 am

1 stop32h 10m

Hanoi Noibai

Tue 5/5

7:10 pm-10:05 am

1 stop28h 55m

$622

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 5/3

12:55 am-10:00 pm

1 stop31h 05m

Hanoi Noibai

Tue 5/12

1:25 pm-2:55 pm

1 stop15h 30m

$624

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 5/3

12:55 am-10:00 pm

1 stop31h 05m

Hanoi Noibai

Tue 5/12

1:25 pm-2:55 pm

1 stop15h 30m

$625

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 4/30

11:45 am-9:55 am

1 stop32h 10m

Hanoi Noibai

Tue 5/19

7:10 pm-10:05 am

1 stop28h 55m

$626

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 4/5

7:59 pm-9:35 pm

2 stops35h 36m

Hanoi Noibai

Tue 4/14

12:05 pm-6:26 pm

2 stops44h 21m

$646

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 4/9

7:59 pm-9:35 pm

2 stops35h 36m

Hanoi Noibai

Tue 4/21

11:10 pm-10:40 am

1 stop25h 30m

$655

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Mon 5/4

8:30 pm-10:30 am

2 stops24h 00m

Hanoi Noibai

Thu 5/14

5:50 pm-11:03 pm

2 stops19h 13m

$812

PortlandHanoi

PDX - HAN

PDXHAN

Portland

Wed 4/8

5:45 pm-10:10 am

2 stops26h 25m

Hanoi Noibai

Wed 4/22

5:50 pm-7:34 pm

2 stops39h 44m

$827

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 State of Washington to Hanoi

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

What is the cheapest month to fly to Hanoi?

The cheapest month to fly to Hanoi from State of Washington is in September. Flight prices, which tend to average around $736, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in September, then February is your next best option. Flight prices from State of Washington to Hanoi during February average around $779.

How far in advance should I book a flight to Hanoi?

You are more likely to see cheaper flights to Hanoi from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around $940 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from State of Washington for as low as $732 on momondo.

Can stopping save me money on State of Washington to Hanoi flights?

You could potentially save up to 19% on your flight if you consider stops on a State of Washington to Hanoi flight.

Cheap State of Washington to Hanoi flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Hanoi

Fastest flight time	19h 45m
Direct flights	None

The fastest flight from State of Washington to Hanoi takes 19h 45m

There are no direct flights from State of Washington to Hanoi. There are no popular flight routes from State of Washington to Hanoi.

Search flight deals

When did momondo last update prices for flights from Washington to Hanoi Noibai Airport?
Prices for flights from Washington to Hanoi Noibai Airport were last updated today.
How many operators does momondo search for flights from Washington to Hanoi Noibai Airport?
As of February 2026, there are 8 operators available to choose from for flights from Washington to Hanoi Noibai Airport.
How old do you have to be to fly from Washington to Hanoi Noibai Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Hanoi Noibai Airport.
What documentation or ID do you need to fly to Hanoi Noibai Airport?
The necessary travel and health documents for your Hanoi Noibai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Hanoi

Compare and see reviews for airlines that fly from State of Washington to Hanoi with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $400	Free Cancellation	Rating 7.9 8,201 reviews	Search Delta flights
Singapore Airlines	PriceFrom $531	Free Cancellation	Rating 8.2 1,452 reviews	Search Singapore Airlines flights
Korean Air	PriceFrom $588	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
Asiana Airlines	PriceFrom $622	Free Cancellation	Rating 8.1 503 reviews	Search Asiana Airlines flights
Philippine Airlines	PriceFrom $638	Free Cancellation	Rating 7.3 955 reviews	Search Philippine Airlines flights
China Airlines	PriceFrom $659	Free Cancellation	Rating 8.3 804 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $758	Free Cancellation	Rating 8.9 274 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $783	Free Cancellation	Rating 8.4 1,353 reviews	Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Hanoi?

It is quick and easy to find Washington to Hanoi flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Hanoi that suits you.

Can I find flights from Washington to Hanoi with flexible booking policies on momondo?

momondo does allow users to show only those flights to Hanoi from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Hanoi?

momondo provides multiple filters to help you find the best flight to Hanoi from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Hanoi from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.