Today's drop ·
Cheap flights from Boston to Seoul
$978 round trip right now, 16% under the $1159 this route usually costs.

How cheap is this?
Telly prices every departure date in the next week on this route, for trips of 2 to 14 nights, and measures each fare against what the route usually costs. The cheapest round trip right now is $978 on Hainan Airlines, 1 stop, against a usual $1159. 12% under usual, among this route's lowest.
When to go
The cheapest dates fall in Nov, for trips of 5 to 12 nights. Nov in Seoul runs around 60°. The dates come picked because a cheap fare only exists on certain days; the exact ones and the booking link are in the app.
Passport required
Seoul is outside the US and Canada, so you need a passport. Every flight on Telly leaves the country; that is the whole filter.
Questions about this route
How much is a flight from Boston to Seoul?+
Right now $978 round trip, on Hainan Airlines. The route usually costs $1159, so this fare is 16% under. Checked Nov 4, 2026.
When are the cheapest dates to fly to Seoul?+
The cheapest dates Telly found are in Nov, for trips of 5 to 12 nights. It prices every departure date in the next week on this route and keeps only the lowest. The exact dates are in the app.
Do I need a passport to fly from Boston to Seoul?+
Yes. Seoul is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.





