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Cheap flights from Hanoi to Seattle from £373

HAN — SEA
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hanoi to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Hanoi to Seattle

Thu 12/1111:35 -
1 stop21h 35m
Sun 15/1100:10 -
1 stop25h 20m
Deal found 6/9£660
Sun 25/1011:35 -
1 stop21h 35m
Sat 31/1001:10 -
1 stop19h 25m
Deal found 9/9£666
Thu 24/1223:50 -
1 stop29h 05m
Fri 22/100:10 -
1 stop31h 15m
Deal found 9/9£680
Fri 25/1211:40 -
1 stop18h 25m
Tue 19/123:45 -
1 stop19h 45m
Deal found 9/9£686
Sun 27/1217:30 -
1 stop15h 40m
Mon 18/100:10 -
1 stop25h 20m
Deal found 9/9£693
Sat 26/1223:05 -
1 stop25h 00m
Sat 23/111:00 -
1 stop19h 45m
Deal found 9/9£717
Tue 22/917:50 -
1 stop15h 25m
Tue 15/1200:10 -
1 stop25h 20m
Deal found 7/9£723
Thu 24/1211:15 -
2 stops22h 28m
Thu 21/110:25 -
1 stop32h 40m
Deal found 9/9£748
Sun 4/1012:05 -
2 stops38h 22m
Sun 11/1017:55 -
2 stops37h 40m
Deal found 6/9£755
Mon 7/923:10 -
2 stops31h 20m
Mon 21/907:15 -
2 stops24h 20m
Deal found 5/9£756
Mon 28/1211:40 -
1 stop18h 25m
Mon 25/123:45 -
1 stop19h 45m
Deal found 9/9£756
Mon 28/1217:30 -
1 stop15h 40m
Thu 21/100:10 -
1 stop19h 25m
Deal found 9/9£779

Find flight deals from Hanoi to Seattle

Round-trip from

£660

One-way from

£373

Popular in

January

Cheapest in

April

Average price

£777
China Airlines
  • China Airlines
  • 26/12-24/1
  • 2 total stops
  • 41h 00m total
  • Hanoi to Seattle
Search Deals
Qatar Airways
  • Qatar Airways
  • 17/10-31/12
  • 1 total stop
  • 30h 55m total
  • Hanoi to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Hanoi to Seattle that are best for you.

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Route

Depart

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Price

Cheapest return flight

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Tue 20/10

10:55-10:05

1 stop37h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£381

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 17/10

19:30-12:25

1 stop30h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£391

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Thu 17/9

11:30-19:15

1 stop21h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£393
Fastest return journey

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 31/10

17:30-19:10

1 stop15h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£396

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Thu 17/9

12:05-21:54

2 stops23h 49m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£441

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Wed 23/12

00:25-21:25

3 stops36h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£463

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Tue 22/12

00:25-16:32

3 stops55h 07m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£463

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Tue 29/12

12:20-20:40

2 stops23h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£506

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Fri 16/10

02:20-16:04

3 stops27h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£553

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Thu 12/11

11:35-18:10

1 stop21h 35m

Seattle/Tacoma Intl

Sun 15/11

00:10-16:30

1 stop25h 20m

£660

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Hanoi to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Hanoi with our price prediction graph.
Estimated return price

Related info for your journey

  • How long is the flight from Hanoi to Seattle?

    China Airlines can get you from Hanoi to Seattle in just under 21h 35m. Your travel time can differ by up to . Hanoi and Seattle are separated by a distance of 6827 mi.

  • Can I find deals for flights from Hanoi to Seattle that include hotel bookings?

    Yes. In addition to deals on Hanoi to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hanoi to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hanoi to Seattle.

  • Can I find deals for business class flights from Hanoi to Seattle?

    Yes. Cheapflights offers flight deals from Hanoi to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

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Can Cheapflights find flights from Hanoi to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Hanoi shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Yes, Cheapflights offers price alerts on Hanoi to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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