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

Korean Air, Delta, and Qatar Airways are the most popular carriers operating from Washington to Hanoi Noibai

What airlines fly to Hanoi?

Asiana Airlines, EVA Air and China Airlines are the top three most popular airlines that fly to Hanoi from State of Washington according to our data. Asiana Airlines is the first choice among our users, with 46% 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 June 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.

$402 Cheap Flights from Washington to Hanoi in 2026

Discover deals from 900+ travel sites with momondo.

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.

8:45 am - 3:05 pm

SEA

HAN

39h 20m

1 stop

4:00 pm - 7:10 am

HAN

SEA

30h 10m

1 stop

$755Singapore Airlines

Tue, Nov 17 - Tue, Nov 24

8:45 am - 3:05 pm

SEA

HAN

39h 20m

1 stop

4:00 pm - 7:10 am

HAN

SEA

30h 10m

1 stop

$795Singapore Airlines

Tue, Nov 17 - Tue, Nov 24

1:00 pm - 9:35 pm

SEA

HAN

18h 35m

1 stop

11:10 pm - 1:14 pm

HAN

SEA

28h 04m

1 stop

$796Delta

Mon, Sep 21 - Tue, Oct 6

12:50 pm - 10:35 am

SEA

HAN

31h 45m

1 stop

11:10 pm - 10:40 am

HAN

SEA

25h 30m

1 stop

$799Korean Air

Tue, Sep 22 - Tue, Oct 6

7:20 am - 9:35 pm

SEA

HAN

24h 15m

2 stops

11:10 pm - 10:40 am

HAN

SEA

25h 30m

1 stop

$805Korean Air

Mon, Sep 21 - Wed, Oct 7

12:50 pm - 10:35 am

SEA

HAN

31h 45m

1 stop

11:10 pm - 9:54 pm

HAN

SEA

36h 44m

2 stops

$810Korean Air

Tue, Sep 22 - Tue, Oct 6

7:20 am - 10:35 am

SEA

HAN

37h 15m

2 stops

11:10 pm - 9:51 pm

HAN

SEA

36h 41m

2 stops

$816Korean Air

Fri, Aug 14 - Mon, Sep 21

5:00 am - 11:05 pm

SEA

HAN

27h 05m

2 stops

12:25 am - 1:20 pm

HAN

SEA

27h 55m

1 stop

$819United Airlines

Mon, Nov 23 - Mon, Dec 7

12:10 am - 12:10 pm

SEA

HAN

21h 00m

1 stop

1:30 pm - 1:55 pm

HAN

SEA

15h 25m

1 stop

$820Asiana Airlines

Mon, Nov 16 - Tue, Dec 1

6:29 am - 11:05 pm

SEA

HAN

25h 36m

2 stops

12:25 am - 3:48 pm

HAN

SEA

30h 23m

2 stops

$821United Airlines

Mon, Nov 23 - Wed, Dec 2

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Korean Air flights from State of Washington to Hanoi

Our best Korean Air deals on State of Washington to Hanoi flight tickets

Korean Air

Sep 22

SEA12:50 pmSeattle/Tacoma Intl

31h 45m

1 stop

HAN10:35 amHanoi Noibai

Oct 5

HAN12:05 pmHanoi Noibai

36h 35m

1 stop

SEA10:40 amSeattle/Tacoma Intl

$799

Korean Air

Sep 21

SEA7:15 amSeattle/Tacoma Intl

24h 20m

2 stops

HAN9:35 pmHanoi Noibai

Oct 10

HAN12:05 pmHanoi Noibai

36h 35m

1 stop

SEA10:40 amSeattle/Tacoma Intl

$805

Korean Air

Sep 22

SEA12:50 pmSeattle/Tacoma Intl

31h 45m

1 stop

HAN10:35 amHanoi Noibai

Oct 10

HAN12:05 pmHanoi Noibai

42h 54m

2 stops

SEA4:59 pmSeattle/Tacoma Intl

$810

United Airlines flights from State of Washington to Hanoi

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

United Airlines

Nov 23

SEA6:29 amSeattle/Tacoma Intl

25h 36m

2 stops

HAN11:05 pmHanoi Noibai

Dec 2

HAN12:25 amHanoi Noibai

27h 55m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$819

United Airlines

Nov 23

SEA6:29 amSeattle/Tacoma Intl

25h 36m

2 stops

HAN11:05 pmHanoi Noibai

Dec 2

HAN12:25 amHanoi Noibai

30h 23m

2 stops

SEA3:48 pmSeattle/Tacoma Intl

$821

United Airlines

Nov 23

SEA3:40 pmSeattle/Tacoma Intl

40h 25m

1 stop

HAN11:05 pmHanoi Noibai

Dec 1

HAN12:25 amHanoi Noibai

27h 55m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$822

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 11/17

8:45 am-3:05 pm

1 stop39h 20m

Hanoi Noibai

Tue 11/24

4:00 pm-7:10 am

1 stop30h 10m

$755

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 11/17

8:45 am-3:05 pm

1 stop39h 20m

Hanoi Noibai

Tue 11/24

4:00 pm-7:10 am

1 stop30h 10m

$795

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 9/21

1:00 pm-9:35 pm

1 stop18h 35m

Hanoi Noibai

Tue 10/6

11:10 pm-1:14 pm

1 stop28h 04m

$796

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/22

12:50 pm-10:35 am

1 stop31h 45m

Hanoi Noibai

Tue 10/6

11:10 pm-10:40 am

1 stop25h 30m

$799

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 9/21

7:20 am-9:35 pm

2 stops24h 15m

Hanoi Noibai

Wed 10/7

11:10 pm-10:40 am

1 stop25h 30m

$805

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/22

12:50 pm-10:35 am

1 stop31h 45m

Hanoi Noibai

Tue 10/6

11:10 pm-9:54 pm

2 stops36h 44m

$810

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 8/14

7:20 am-10:35 am

2 stops37h 15m

Hanoi Noibai

Mon 9/21

11:10 pm-9:51 pm

2 stops36h 41m

$816

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 11/23

5:00 am-11:05 pm

2 stops27h 05m

Hanoi Noibai

Mon 12/7

12:25 am-1:20 pm

1 stop27h 55m

$819

Quickest round-trip

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 11/16

12:10 am-12:10 pm

1 stop21h 00m

Hanoi Noibai

Tue 12/1

1:30 pm-1:55 pm

1 stop15h 25m

$820

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 11/23

6:29 am-11:05 pm

2 stops25h 36m

Hanoi Noibai

Wed 12/2

12:25 am-3:48 pm

2 stops30h 23m

$821

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 February. Flight prices, which tend to average around $400, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in February, then August is your next best option. Flight prices from State of Washington to Hanoi during August average around $453.

How far in advance should I book a flight from Washington 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 $865 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 $659 on momondo.

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

You could potentially save up to 5% 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	21h 00m
Direct flights	None

The fastest flight from State of Washington to Hanoi takes 21h 00m

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

Frequently asked questions about flying from Washington to Hanoi

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 June 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 8,394 reviews	Search Delta flights
Singapore Airlines	PriceFrom $521	Free Cancellation	Rating 8.2 1,539 reviews	Search Singapore Airlines flights
Korean Air	PriceFrom $588	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
China Airlines	PriceFrom $614	Free Cancellation	Rating 8.3 828 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $624	Free Cancellation	Rating 8.1 540 reviews	Search Asiana Airlines flights
Philippine Airlines	PriceFrom $638	Free Cancellation	Rating 7.3 999 reviews	Search Philippine Airlines flights
EVA Air	PriceFrom $758	Free Cancellation	Rating 8.5 1,470 reviews	Search EVA Air flights
STARLUX Airlines	PriceFrom $758	Free Cancellation	Rating 8.9 331 reviews	Search STARLUX Airlines 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.