SEA - HAN

C$ 601 Find Cheap Flights from Seattle to Hanoi – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
C$ 1,160
Typical prices: C$ 1,008-C$ 1,446
China Airlines
Fri 9/3Sun 25/3
SEA - HAN • 1 stop
Cheapest one-way flights
C$ 601
Typical prices: C$ 572-C$ 902
Cathay Pacific
Thu 22/2
SEA - HAN • 1 stop
Direct flights
Not available
There are currently no direct flights between Seattle and Hanoi. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
26 weeks
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
September
Cheapest • 21% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Singapore Changi (SIN)
Cheapest • Avg C$ 986 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 18h 32m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Hanoi!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Hanoi (SEA-HAN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Hanoi

Tue, 9 Mar - Thu, 25 Mar
China Airlines Logo
12:10 a.m. - 4:30 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
25h 20m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
11:35 a.m. - 7:10 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
21h 35m1 stop Taipei City Taiwan Taoyuan Intl
C$ 1,160China Airlines
Mon, 16 Nov - Tue, 24 Nov
Delta Logo
12:30 p.m. - 9:45 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
18h 15m1 stop Incheon Intl
Delta Logo
11:05 p.m. - 11:51 a.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
27h 46m1 stop Incheon Intl
C$ 1,166Delta
Tue, 10 Nov - Wed, 18 Nov
Korean Air Logo
11:00 a.m. - 9:45 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
19h 45m1 stop Incheon Intl
Korean Air Logo
12:20 p.m. - 9:05 a.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
35h 45m1 stop Incheon Intl
C$ 1,171Korean Air
Tue, 10 Nov - Tue, 17 Nov
Korean Air Logo
12:31 p.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
31h 39m2 stops Los Angeles Los Angeles Incheon Intl
Korean Air Logo
12:20 p.m. - 9:05 a.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
35h 45m1 stop Incheon Intl
C$ 1,178Korean Air
Tue, 10 Nov - Wed, 18 Nov
Korean Air Logo
12:31 p.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
31h 39m2 stops Los Angeles Los Angeles Incheon Intl
Korean Air Logo
11:05 p.m. - 9:05 a.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
25h 00m1 stop Incheon Intl
C$ 1,180Korean Air
Sat, 28 Nov - Thu, 3 Dec
China Airlines Logo
12:10 a.m. - 4:30 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
25h 20m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
11:35 a.m. - 6:10 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
21h 35m1 stop Taipei City Taiwan Taoyuan Intl
C$ 1,184China Airlines
Wed, 18 Nov - Wed, 25 Nov
Korean Air Logo
11:00 a.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
33h 10m1 stop Incheon Intl
Korean Air Logo
11:05 p.m. - 10:04 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
37h 59m2 stops Incheon Intl Los Angeles Los Angeles
C$ 1,187Korean Air
Tue, 10 Nov - Tue, 1 Dec
Korean Air Logo
12:31 p.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
31h 39m2 stops Los Angeles Los Angeles Incheon Intl
Korean Air Logo
11:05 p.m. - 8:18 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
36h 13m2 stops Incheon Intl Los Angeles Los Angeles
C$ 1,194Korean Air
Sun, 22 Nov - Mon, 7 Dec
Korean Air Logo
5:57 p.m. - 9:45 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
36h 48m2 stops Los Angeles Los Angeles Incheon Intl
Korean Air Logo
12:20 p.m. - 2:10 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
16h 50m1 stop Incheon Intl
C$ 1,195Korean Air
Sun, 22 Nov - Mon, 7 Dec
Korean Air Logo
5:57 p.m. - 9:45 p.m.SEA  Seattle/Tacoma Intl-HAN Hanoi Noibai
36h 48m2 stops Los Angeles Los Angeles Incheon Intl
Korean Air Logo
11:05 p.m. - 8:18 p.m.HAN  Hanoi Noibai-SEA Seattle/Tacoma Intl
36h 13m2 stops Incheon Intl Los Angeles Los Angeles
C$ 1,204Korean Air
Booking Insights

Price, demand, and travel trends for Seattle to Hanoi flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Hanoi with more confidence.

How much is a round-trip flight from Seattle to Hanoi?

Round-trip flights from Seattle to Hanoi start at C$ 1,160. Prices are typical for this route right now, with typical round-trip fares ranging from C$ 1,008 to C$ 1,446. The lowest price found in the past 5 days was C$ 1,160 on China Airlines.

What's the cheapest day of the week to fly from Seattle to Hanoi?

Monday is the cheapest day of the week to fly from Seattle to Hanoi and is 7% cheaper than the average day. Saturday is the most expensive day with flight prices 18% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•September is the cheapest month to fly from Seattle to Hanoi at C$ 923 round-trip.
•December (C$ 2,220) and July (C$ 1,655) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 140% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Hanoi the cheapest?

Flights from Seattle to Hanoi are cheapest 26 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Hanoi flights

Low season

June

Cheapest flight

C$ 601
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly (91% more expensive on average)
Flights from Seattle to Hanoi

When to book flights from Seattle to Hanoi

Are your dates flexible? Find out the best times to travel from Seattle to Hanoi based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Hanoi flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Can I change my ticket from economy to first class on Delta Airlines?

    Delta Airlines offers a wide range of classes of tickets that vary based on travel dates and flight choices available for travelers looking to travel from Seattle to Hanoi. Also, Delta Airlines offers options for customers to upgrade their tickets from economy to first class. You can upgrade if you have adequate SkyMiles required in your SkyMiles account.

  • What is the quickest way from downtown to Seattle-Tacoma International Airport (SEA)?

    The quickest and most convenient means of getting to Seattle-Tacoma International Airport (SEA) if you need to catch a flight to Hanoi is a taxi. Located approximately 14 miles from downtown, it will take you roughly 22 minutes to get to the airport.

  • Do Alaska Airlines have a baggage policy?

    Yes, if you board Alaska Airlines to Hanoi, you are permitted to have a single carry-on bag and personal items, including; a briefcase or a purse. The policy stipulates that the bag must have a maximum dimension of 22 x 14 x 9 inches in length, height and width.

  • Are there freight operation services from Seattle to Hanoi?

    Business Travelers looking to export merchandise from Seattle to Hanoi can use the commercial Seattle-Tacoma International Airport (SEA) or King County International Airport (BFI). These airports offer freight operation services to their travelers at competitive ticket prices and cargo fees.

  • Which airports can I use when flying from Seattle to Hanoi?

    Flights from Seattle to Hanoi usually depart from Seattle/Tacoma Intl (SEA) and arrive at Hanoi Noibai (HAN).

  • Which airports do connecting flights from Seattle to Hanoi pass through?

    One-stop flights from Seattle to Hanoi most commonly connect through:

    • Incheon Intl (ICN) – 50% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) – 44% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) – 2% of one-stop connections
    • Singapore Changi (SIN) – 2% of one-stop connections

    Incheon Intl (ICN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Hanoi?

    Yes. Being flexible with your travel dates can save you up to 22% on the Seattle to Hanoi route. Monday is the cheapest departure day at C$ 1,086 round-trip on average, while Saturday is the most expensive at C$ 1,381, a difference of C$ 294. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which popular places can I visit in Hanoi?

    Some of the most popular sights in Hanoi are Hoan Kiem Lake, Vietnam Military History Museum, and Hanoi Opera House. These are among the most viewed places in Hanoi on KAYAK.

  • How expensive are last-minute Seattle to Hanoi flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 33% above the route average of C$ 1,163. Book 26 weeks before departure for the lowest fares.

  • How long does a flight from Seattle to Hanoi take?

    A direct flight from Seattle to Hanoi takes 0h 00m, covering 17,681 km.

  • Do I need a passport to fly from Seattle to Hanoi?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Hanoi looking right now?

    One-way fares from Seattle to Hanoi are currently lower than usual. Average one-way flight prices are about C$ 635, which is 6% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Seattle to Hanoi?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 18h 32m, compared with 20h 31m via Incheon Intl (ICN) and 22h 02m via Tokyo Narita (NRT).

  • What is the time difference between Seattle and Hanoi?

    Hanoi is 14 hours ahead of Seattle (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • How much should I expect to pay for a Seattle to Hanoi flight?

    Round-trip flights from Seattle to Hanoi range from C$ 1,008 to C$ 1,446, with an average of C$ 1,163 over the past 12 months. Anything below C$ 1,008 counts as a good deal.

Your guide to booking Seattle to Hanoi flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Saturday. On this route, Monday flights average C$ 1,086 – about C$ 294 less than Saturday (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Hanoi trip for September. Fares historically average C$ 923 round-trip in that month – typically C$ 1,297 less than the most expensive month, which is December (based on the last 12 months).
  • If you are looking to fly to Hanoi from Seattle-Tacoma International Airport (SEA), you can book a one-stop flight offered by different airlines at the airport. Travelers looking to stop in Tokyo can book Delta, Vietnam, ANA or Jal Airlines. If you are seeking to travel via Seoul, you can board Asiana or Korean Air.
  • Several Airlines offer unaccompanied minor services for minors traveling to Hanoi from Seattle, including Delta and Alaska Airlines. Alaska Airlines has a dedicated program for unaccompanied minors known as Junior Jetsetters, ensuring they are well taken care of during their flight. The airline has an age restriction of 5 to 17 years for a child to be considered a minor.
  • Served by two main airports that offer both domestic and international flights, you can book a flight at Seattle-Tacoma International Airport (SEA) or King County International Airport (BFI). Seattle-Tacoma International Airport (SEA) is a hub for Delta Airlines and Alaska Airlines, offering a strong route network for broad connectivity. Also, Delta Airlines is part of the SkyTeam alliance, a strategic Airline alliance that allows for code-sharing, coordinated schedules and seamless connections with other airlines.
  • You can book a charter flight if you are looking to avoid long queues, security checks and customs experience on commercial flights. King County International Airport (BFI) offers private and charter flights to travelers with specific needs and preferences. Charter flights offer customized and personalized services such as specific on board services, seating arrangements and extra leg space. Charter carriers provide travelers privacy, convenience and flexibility for a comfortable and exclusive traveling experience.
  • Travelers looking to fly to Hanoi in Vietnam from Seattle can choose their destination airport as Noi Bai International Airport (HAN), located 22 miles on the northern side of downtown Hanoi. The airport is the major gateway for domestic and international travelers seeking to access the downtown quickly and conveniently. You can book a taxi outside the main terminal, and it takes roughly 45 minutes under ideal traffic conditions.

More options for your flight from Seattle to Hanoi

Complete your trip to Hanoi with a hotel stay or car rental

Car rentals in Hanoi
Hotels in Hanoi
Vacations in Hanoi