$401 Cheap United flights Seattle (SEA) to Hanoi (HAN)

View $401 flight on Wed, Aug 13, 2025Opens in a new window

$401 Cheap United flights Seattle (SEA) to Hanoi (HAN)

Prices were available within the past 7 days and start at $401 for one-way flights and $870 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$870
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $870 Found 1 day ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$878
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $878 Found 1 day ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$906
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $906 Found 1 day ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$978
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $978 Found 1 day ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$1,030
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $1,030 Found 1 day ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
HAN
Hanoi
$1,279
Roundtrip
Found 1 day ago
Select United flight, departing Wed, Aug 13 from Seattle to Hanoi, returning Tue, Aug 19, priced at $1,279 Found 1 day ago
Flights from Seattle (SEA) to Hanoi (HAN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Noi Bai Intl.
Distance
10931 km