$284+ Cheap flights from Seattle (SEA) to Hanoi (HAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HAN
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Hanoi with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Hanoi
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HanoiExplore the most affordable flight options available from Seattle to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Seattle to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:00 am -
1 stop33h 10m
Tue 12/112:20 pm -
1 stop35h 45m
Deal found 10/24![Korean Air logo]()
$794
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:00 am -
1 stop33h 10m
Wed 11/2512:20 pm -
1 stop35h 45m
Deal found 10/24![Korean Air logo]()
$811
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:00 am -
1 stop19h 45m
Thu 12/312:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$819
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:00 am -
1 stop19h 45m
Thu 11/2612:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$820
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:00 am -
1 stop33h 10m
Thu 12/312:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$822
This IEagle deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:25 am -
1 stop32h 40m
Tue 11/37:25 pm -
1 stop28h 20m
Deal found 10/22![Cathay Pacific logo]()
$824
This Korean Air deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:00 am -
1 stop33h 10m
Tue 11/2411:05 pm -
1 stop25h 00m
Deal found 10/22![Korean Air logo]()
$830
This FlightHub deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:25 am -
1 stop32h 40m
Wed 11/187:25 pm -
1 stop28h 20m
Deal found 10/22![Cathay Pacific logo]()
$832
Best flights from Seattle to HanoiDiscover carefully curated flight deals from Seattle to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Seattle to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/1312:40 pm -
1 stop18h 05m
Wed 1/2011:05 pm -
1 stop27h 46m
Deal found 10/25![Delta logo]()
$836
This Korean Air deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2510:35 am -
2 stops33h 35m
Mon 2/812:20 pm -
1 stop16h 50m
Deal found 10/23![Korean Air logo]()
$845
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/1312:40 pm -
1 stop18h 05m
Tue 1/1911:05 pm -
1 stop27h 46m
Deal found 10/25![Delta logo]()
$836
This Korean Air deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/235:55 pm -
2 stops26h 15m
Tue 3/1611:05 pm -
2 stops29h 42m
Deal found 10/24![Korean Air logo]()
$856
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/912:40 pm -
1 stop18h 05m
Wed 1/2011:05 pm -
1 stop27h 46m
Deal found 10/25![Delta logo]()
$857
This Korean Air deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/287:59 pm -
2 stops48h 51m
Wed 4/1412:05 pm -
1 stop36h 35m
Deal found 10/21![Korean Air logo]()
$857
This Korean Air deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/225:55 pm -
2 stops26h 15m
Thu 2/2512:20 pm -
1 stop16h 50m
Deal found 10/21![Korean Air logo]()
$866
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/259:30 am -
2 stops34h 40m
Mon 2/812:20 pm -
2 stops24h 45m
Deal found 10/21![Delta logo]()
$971
This Korean Air deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/712:50 pm -
1 stop32h 00m
Sun 4/2512:05 pm -
1 stop36h 35m
Deal found 10/22![Korean Air logo]()
$883
This Korean Air deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/17:20 am -
2 stops37h 30m
Sat 4/1712:05 pm -
1 stop36h 35m
Deal found 10/24![Korean Air logo]()
$887
Last-minute flights from Seattle to HanoiDiscover last-minute flight deals from Seattle to Hanoi. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Hanoi. Data last updated October 26, 2026 and is based on user searches.
This IEagle deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:25 am -
1 stop32h 40m
Tue 11/37:25 pm -
1 stop28h 20m
Deal found 10/22![Cathay Pacific logo]()
$824
This FlightHub deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:25 am -
1 stop32h 40m
Wed 11/187:25 pm -
1 stop28h 20m
Deal found 10/22![Cathay Pacific logo]()
$832
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:00 am -
1 stop33h 10m
Tue 12/112:20 pm -
1 stop35h 45m
Deal found 10/24![Korean Air logo]()
$794
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:00 am -
1 stop19h 45m
Thu 11/2612:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$820
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:00 am -
1 stop33h 10m
Wed 11/2512:20 pm -
1 stop35h 45m
Deal found 10/24![Korean Air logo]()
$811
This Korean Air deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:00 am -
1 stop33h 10m
Tue 11/2411:05 pm -
1 stop25h 00m
Deal found 10/22![Korean Air logo]()
$830
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:00 am -
1 stop33h 10m
Thu 12/312:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$822
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:00 am -
1 stop19h 45m
Thu 12/312:20 pm -
1 stop16h 50m
Deal found 10/24![Korean Air logo]()
$819
One-way flights from Seattle to HanoiSearch for one-way flight options from Seattle to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Seattle to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This oojo deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/268:40 am -
1 stop39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Singapore Airlines logo]()
$284
This oojo deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/110:15 am -
1 stop39h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Singapore Airlines logo]()
$290
This oojo deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/178:40 am -
1 stop39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/169:40 am -
1 stop41h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/179:40 am -
1 stop39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$393
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/248:40 am -
1 stop41h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$395
This oojo deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:30 pm -
1 stop36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Philippine Airlines logo]()
$414
This Singapore Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/149:40 am -
1 stop39h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$415
This oojo deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/319:30 pm -
1 stop24h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Philippine Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:30 pm -
1 stop31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$419
Find flight deals from Seattle to Hanoi
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $641 (oojo) |
One-way from | $284 (oojo) |
Popular in | December |
Cheapest in | September |
Average price | $869 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Seattle to Hanoi that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Tue 11/10
10:25 am-10:05 am
1 stop32h 40m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$431
Quickest round-trip
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Tue 12/8
12:35 pm-9:45 pm
1 stop18h 10m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$467
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Fri 11/13
12:30 pm-11:10 am
1 stop31h 40m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$467
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Tue 11/10
9:20 pm-11:10 am
2 stops46h 50m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$483
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Tue 11/17
7:20 am-11:10 am
2 stops36h 50m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$483
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Thu 12/10
5:30 am-11:10 am
2 stops38h 40m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$751
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Wed 1/13
12:40 pm-9:45 pm
1 stop18h 05m
Hanoi Noibai
Wed 1/20
11:05 pm-11:51 am
1 stop27h 46m
$836
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Wed 1/13
12:40 pm-9:45 pm
1 stop18h 05m
Hanoi Noibai
Tue 1/19
11:05 pm-11:51 am
1 stop27h 46m
$836
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Mon 1/25
10:35 am-11:10 am
2 stops33h 35m
Hanoi Noibai
Mon 2/8
12:20 pm-2:10 pm
1 stop16h 50m
$845
SeattleHanoi
SEA Seattle/Tacoma Intl - HAN Hanoi Noibai
SEAHAN
Seattle/Tacoma Intl
Tue 2/23
5:55 pm-11:10 am
2 stops26h 15m
Hanoi Noibai
Tue 3/16
11:05 pm-2:47 pm
2 stops29h 42m
$856
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle to Hanoi
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Hanoi in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hanoi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hanoi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Hanoi flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Hanoi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Hanoi
Have a flexible travel schedule? Discover the best time to fly to Hanoi from Seattle with our price prediction graph.
SEA-HAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Hanoi
How far ahead should I book a flight from Seattle to Hanoi?
To ensure you get the cheapest price possible for a flight from Seattle to Hanoi, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Hanoi?
Currently, September is the cheapest month in which you can book a flight from Seattle to Hanoi (average of $695). Flying from Seattle to Hanoi in December is currently the most expensive (average of $1,332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Hanoi?
Airfare is below average for this route at the moment.
Seattle to Hanoi flights typically cost between $791 and $941 in February.The cheapest round-trip price found within the last 5 days was $641 on Singapore Airlines (Feb 24-Mar 8).
Reviews of airlines servicing Hanoi
Get insights into the airlines that provide service to Hanoi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hanoi. Reviews last updated October 26, 2026.
Read reviews from past customers who have flown STARLUX Airlines,EVA Air, andKorean Air from Seattle to Hanoi. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Food
8.5
Overall
8.7
Comfort
8.8
Entertainment
8.6
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
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Top 7 airlines flying from Seattle to Hanoi
Discover the top 7 airlines that operate flights from Seattle to Hanoi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$400 | Average$806 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$521 | Average$716 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$614 | Average$876 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$628 | Average$760 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$668 | Average$839 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$768 | Average$1,015 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$797 | Average$869 | FlexibilityNo cancel fee | On-timeN/A |