Lisbon to Boston LIS → BOS
Lisbon Portela Airport (LIS) → Logan International Airport (BOS)
The cheapest return found recently is $485 with Iberia, 13 Nov – 28 Nov, found yesterday.
Return
The cheapest return fare on each of 3 departure dates is usually $442 to $508.
Cheapest return found recently
$485
13 Nov – 28 Nov · Iberia
Lisbon Portela Airport (LIS) → Logan International Airport (BOS)
Leaves 8:20 a.m. · Return leaves 5:32 p.m. · 30 h 57 min of travel, both ways together
out 2 stops, back 1 stop
found yesterday
Cheapest nonstop return
$504
8 Jan 2027 – 13 Jan 2027 · TAP Air Portugal
Lisbon Portela Airport (LIS) → Logan International Airport (BOS)
Leaves 11:40 a.m. · Return leaves 6:00 p.m. · 14 h 35 min of travel, both ways together
out nonstop, back nonstop
found 6 days ago
Found recently, and the cheapest we hold
$485 13 Nov – 28 Novfound yesterdaySee prices for these dates
$379 13 Nov – 28 Novfound 5 days agoSee prices for these dates
What have prices looked like?
Over 18 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $379 to $800.
18 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 3 departure dates from 13 Nov to 8 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 15-night return fares leaving within 3 days of 13 Nov to compare.
Every date we hold
4 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 28 Nov | $379 | Iberia | Lisbon Portela Airport (LIS) → Logan International Airport (BOS) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 10 Dec – 21 Dec | $512 | Iberia | Lisbon Portela Airport (LIS) → Logan International Airport (BOS) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 8 Jan 2027 – 13 Jan 2027 | $504 | TAP Air Portugal | Lisbon Portela Airport (LIS) → Logan International Airport (BOS) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $379.
Airlines on the cheapest dates: Iberia, TAP Air Portugal.
Premium cabin fares from Lisbon to Boston
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 13 Nov – 28 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Lisbon to Boston?
Return
Not enough history yet: in 18 days of return prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 13 Nov – 28 Nov. 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