Boston to Praia BOS → RAI
Logan International Airport (BOS) → Nelson Mandela International Airport (RAI)
The cheapest return found recently is $1,052 with United Airlines, 15 Dec – 17 Jan 2027, found today. The cheapest one-way found recently is $314 with Aer Lingus, 17 Jan 2027, found 3 days ago.
Return
The cheapest return fare on each of 5 departure dates is usually $849 to $1,407.
Cheapest return found recently
$1,052
15 Dec – 17 Jan 2027 · United Airlines
Logan International Airport (BOS) → Nelson Mandela International Airport (RAI)
Leaves 7:01 p.m. · Return leaves 2:40 a.m. · 46 h 24 min of travel, both ways together
out 2 stops, back 1 stop
found today
Cheapest nonstop return
$1,001
17 Dec – 17 Jan 2027 · Azores Airlines
Logan International Airport (BOS) → Nelson Mandela International Airport (RAI)
Leaves 9:25 p.m. · Return leaves 12:55 p.m. · 21 h 35 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Found recently, and the cheapest we hold
$1,052 15 Dec – 17 Jan 2027found todaySee prices for these dates
$668 17 Jan 2027 – 14 Feb 2027found 3 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $668 to $1,024.
At $1,052, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 15 Dec to 17 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 33-night return fares leaving within 3 days of 15 Dec to compare.
Every date we hold
13 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 15 Dec – 21 Dec | $849 | Azores Airlines | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 17 Dec – 17 Jan 2027 | $1,001 | Azores Airlines | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 19 Dec – 17 Jan 2027 | $1,471 | Azores Airlines | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | out 2 stops, back nonstop | found 3 days ago | See prices for these dates |
| 20 Dec – 17 Jan 2027 | $1,407 | Azores Airlines | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | out 2 stops, back 1 stop | found 6 days ago | See prices for these dates |
| 17 Jan 2027 – 14 Feb 2027 | $668 | TAP Air Portugal | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $668.
Airlines on the cheapest dates: Azores Airlines, TAP Air Portugal.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$314
17 Jan 2027 · Aer Lingus
Logan International Airport (BOS) → Nelson Mandela International Airport (RAI)
Leaves 5:15 p.m. · 19 h 35 min trip
2 stops
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$314 17 Jan 2027found 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 5 days, 27 Sept to 18 Oct, the cheapest one-way we saw each day was $314 to $342.
At $314, the cheapest one-way found recently is at the low end of that range.
5 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 17 Jan 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Jan 2027 | $314 | Aer Lingus | Logan International Airport (BOS) → Nelson Mandela International Airport (RAI) | 2 stops | found 3 days ago | Open this trip |
Airlines on the cheapest dates: Aer Lingus.
Premium cabin fares from Boston to Praia
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 15 Dec – 17 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 17 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Boston to Praia?
Return
Fares 90 to 179 days before departure were typically 20% lower than 60 to 89 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 60–89 days | $855 | $842 | +25% | 25 |
| 90–179 days | $687 | $668 | Cheapest seen | 14 |
| 180+ days | $980 | $957 | +43% | 9 |
One-way
Not enough history yet: we have 5 days of one-way prices, 27 Sept to 18 Oct, and compare booking times once 3 booking ranges have 7 days each.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Providence → Praia
66 km from Boston
$654
$340 more than flying from Boston
16 Nov · PVD → RAI · 3 stops
found yesterday
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 15 Dec – 17 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work