Today's drop ·
Cheap flights from Boston to Rio de Janeiro
$688 round trip right now, 19% under the $847 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 $688 on Avianca, 1 stop, against a usual $847. 19% below the usual fare.
When to go
The cheapest dates fall in Nov, for trips of 13 nights. Nov in Rio de Janeiro runs around 80°. 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
Rio de Janeiro 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 Rio de Janeiro?+
Right now $688 round trip, on Avianca. The route usually costs $847, so this fare is 19% under. Checked Nov 4, 2026.
When are the cheapest dates to fly to Rio de Janeiro?+
The cheapest dates Telly found are in Nov, for trips of 13 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 Rio de Janeiro?+
Yes. Rio de Janeiro is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.





