Seattle to Hanoi (SEA → HAN). We are tracking 13 fares on this route.
Cheapest tracked fare $324 · typical price $883 · you save about $559 (63%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Singapore Airlines
2027-01-19
1 stop
$324
—
2027-02-19
1 stop
$324
Delta, Korean Air
2026-11-02
1 stop
$433
Delta, Korean Air
2026-11-09
1 stop
$433
Delta, Korean Air
2026-11-16
1 stop
$433
Delta, Korean Air
2026-11-23
1 stop
$433
China Airlines
2027-02-05
1 stop
$443
China Airlines
2026-10-26
1 stop
$445
China Airlines
2026-11-30
1 stop
$445
China Airlines
2027-01-18
1 stop
$446
Philippine Airlines
2027-02-18
1 stop
$453
Korean Air
2026-10-19
1 stop
$456
Korean Air
2027-02-06
1 stop
$504
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
The cheapest fare we have tracked on this route is $324, compared with a typical $883 for a trip of this distance.
Is it cheaper to fly to Hanoi from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Seattle to Hanoi cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.