$404 Find Cheap Flights from Hanoi to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hanoi to Washington departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hanoi to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hanoi to Washington, as well as popular online travel agencies
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Flight Deals

Book Cheap Hanoi to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hanoi to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hanoi to Washington

Fri, Oct 2 - Tue, Oct 6
Korean Air Logo
11:10 pm - 10:40 am
HAN
-
SEA
25h 30m
1 stop
Korean Air Logo
12:50 pm - 9:35 pm
SEA
-
HAN
18h 45m
1 stop
$810Korean Air
Fri, Oct 2 - Tue, Oct 6
Korean Air Logo
12:05 pm - 10:40 am
HAN
-
SEA
36h 35m
1 stop
Korean Air Logo
1:00 pm - 10:35 am
SEA
-
HAN
31h 35m
1 stop
$910Korean Air
Tue, Jun 30 - Sun, Jul 19
Delta Logo
11:10 pm - 1:41 pm
HAN
-
SEA
28h 31m
1 stop
Delta Logo
1:05 pm - 10:35 am
SEA
-
HAN
31h 30m
1 stop
$958Delta
Tue, Jun 30 - Fri, Jul 17
Delta Logo
11:10 pm - 1:41 pm
HAN
-
SEA
28h 31m
1 stop
Delta Logo
1:05 pm - 10:35 am
SEA
-
HAN
31h 30m
1 stop
$966Delta
Tue, Jun 30 - Tue, Jul 21
Korean Air Logo
11:10 pm - 11:00 am
HAN
-
SEA
25h 50m
1 stop
Korean Air Logo
1:20 pm - 10:35 am
SEA
-
HAN
31h 15m
1 stop
$969Korean Air
Tue, Jun 30 - Wed, Jul 15
Delta Logo
11:10 pm - 1:41 pm
HAN
-
SEA
28h 31m
1 stop
Delta Logo
1:05 pm - 10:35 am
SEA
-
HAN
31h 30m
1 stop
$971Delta
Fri, Oct 2 - Tue, Oct 6
Qatar Airways Logo
7:30 pm - 12:25 pm
HAN
-
SEA
30h 55m
1 stop
Qatar Airways Logo
4:25 pm - 7:15 am
SEA
-
HAN
24h 50m
1 stop
$984Qatar Airways
Sun, Jul 12 - Thu, Jul 16
Asiana Airlines Logo
11:30 pm - 3:45 pm
HAN
-
SEA
30h 15m
1 stop
Asiana Airlines Logo
12:10 am - 10:00 pm
SEA
-
HAN
31h 50m
1 stop
$1,004Asiana Airlines
Tue, Sep 22 - Fri, Dec 18
Multiple Airlines Logo
1:25 pm - 3:15 pm
HAN
-
SEA
15h 50m
1 stop
Multiple Airlines Logo
12:10 am - 9:45 pm
SEA
-
HAN
30h 35m
1 stop
$1,024Multiple Airlines
Tue, Sep 22 - Thu, Dec 17
China Airlines Logo
11:30 am - 7:15 pm
HAN
-
SEA
21h 45m
1 stop
China Airlines Logo
12:10 am - 4:30 pm
SEA
-
HAN
25h 20m
1 stop
$1,027China Airlines
Booking Insights

KAYAK's insights & trends for Hanoi to Washington flights

Get data-powered insights and trends into flights from Hanoi to Washington to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Hanoi to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Hanoi to State of Washington departing in October.

What is the cheapest month to fly from Hanoi to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hanoi to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Hanoi to Washington is March, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and November, when the average cost of round-trip tickets is $989 and $935 respectively.

Good to know

Low seasonApril
Cheapest flight$404
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Hanoi to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Hanoi to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hanoi to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Hanoi to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Hanoi to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Hanoi to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Hanoi to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hanoi to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Hanoi to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Hanoi to Washington

 
See real verified KAYAK customer reviews for airlines flying from Hanoi to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hanoi to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
China AirlinesOverall score based on 829 reviews
8.5Crew
8.0Entertainment
8.3Boarding
8.0Comfort
7.8Food
Airline reviews

We boarded late and it snowballed from there. Had to wait behind 6 other flights to take off before us. Then, arriving late to our destination, we had to circle in the air for 20 minutes. If that's not enough, the seats are very cramped on their iteration if the A321neo. I'm 6"3' tall and my knees were pressed against the seat in front of me. These are not the slimline seats that offer less cushion with more leg room. I had no room to move my legs. Since I am an adult male, I also had no shoulder room. I sat on an aisle seat to have some space to lean my should out. But the walkway seemed to be more narrow than I am used to see. I felt bad for the middle passenger because there was just no where for me to put my shoulders except into the middle seat person. I don't plan to fly in this airline again in this configuration. Pack everyone in and lose my business.

2.0 MediocreMark, Apr 2026
TPE - FUK
Read more China Airlines reviews

We boarded late and it snowballed from there. Had to wait behind 6 other flights to take off before us. Then, arriving late to our destination, we had to circle in the air for 20 minutes. If that's not enough, the seats are very cramped on their iteration if the A321neo. I'm 6"3' tall and my knees were pressed against the seat in front of me. These are not the slimline seats that offer less cushion with more leg room. I had no room to move my legs. Since I am an adult male, I also had no shoulder room. I sat on an aisle seat to have some space to lean my should out. But the walkway seemed to be more narrow than I am used to see. I felt bad for the middle passenger because there was just no where for me to put my shoulders except into the middle seat person. I don't plan to fly in this airline again in this configuration. Pack everyone in and lose my business.

We really enjoyed our flight to Seattle. The food was great and service was attentive.

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

The crew are amazing. Very professional, polite, kind, and accommodating.

The crew was very professional and friendly. Although there was a water leak from panel above, the crew was trying to mitigate the consequence. We are happy with its service and the value offered. We will definitely take China Airlines again.

Well, we upgraded and on a 14 hour flight not sure how we would tolerate it otherwise. The upgrades are ridiculously expensive and even with empty seats even in first class it was difficult to upgrade. Probably won’t fly China Air again due to this. The attendants tho were much better than the airlines in the states and there attentiveness and care for your comfort far exceeds other airlines in the states.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

Everything you need to know for your flight from Hanoi to Washington

Information on your arrival and departure airports