
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $589 (Kiwi.com) |
One-way from | $322 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $816 |
Good round-trip deal | $749 or less |
Good one-way deal | $392 or less |
Fly from
Fly to
Route
Depart
Return
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Wed 5/6
9:05 am-4:00 pm
2 stops25h 55m
Lisbon Humberto Delgado
Fri 5/15
9:15 pm-3:35 pm
1 stop23h 20m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Thu 4/16
11:11 am-9:05 am
1 stop16h 54m
Lisbon Humberto Delgado
Thu 4/23
6:35 am-7:50 pm
1 stop18h 15m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Wed 5/27
9:05 am-4:00 pm
2 stops25h 55m
Lisbon Humberto Delgado
Wed 6/3
7:15 am-11:02 pm
2 stops20h 47m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Tue 5/5
11:25 pm-10:45 am
Nonstop6h 20m
Lisbon Humberto Delgado
Tue 5/12
12:45 pm-3:15 pm
Nonstop7h 30m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Fri 5/8
11:25 pm-10:45 am
Nonstop6h 20m
Lisbon Humberto Delgado
Fri 5/15
12:45 pm-3:15 pm
Nonstop7h 30m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Fri 5/22
1:29 pm-4:10 pm
2 stops21h 41m
Lisbon Humberto Delgado
Wed 5/27
7:15 am-10:50 pm
2 stops20h 35m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Sat 4/4
7:00 am-3:15 pm
2 stops27h 15m
Lisbon Humberto Delgado
Tue 4/14
7:40 am-11:07 pm
2 stops20h 27m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Thu 6/4
6:00 am-3:15 pm
2 stops28h 15m
Lisbon Humberto Delgado
Tue 6/9
11:35 am-11:06 pm
2 stops16h 31m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Thu 5/7
7:30 pm-11:05 pm
1 stop22h 35m
Lisbon Humberto Delgado
Sun 5/24
7:20 am-4:50 pm
1 stop14h 30m
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Sun 4/19
11:25 pm-10:45 am
Nonstop6h 20m
Lisbon Humberto Delgado
Sun 4/26
5:00 am-1:13 pm
1 stop13h 13m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
The best time to book flights from Boston to Lisbon is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Boston to Lisbon (average of $311). Flying from Boston to Lisbon in June is currently the most expensive (average of $595). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Boston to Lisbon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
About 19% of weekly flights between Boston and Lisbon have experienced delays in the past year, with the average delay time being 136 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 18% of flights being delayed.
Dublin (DUB) – chosen by Cheapflights users on 40% of 1-stop itineraries from Boston to Lisbon on Cheapflights.
Barcelona (BCN) is the most affordable 1-stop option, with an average round-trip price of $351.
Flights via Madrid (MAD) have the shortest average one-way travel time for 1-stop routes: 9h 45m.
Flights via Madrid (MAD) offer the fastest connection on this route, with an average layover time of 3h 53m.
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Overall
Comfort
Boarding
Entertainment
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$220 | Average$484 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$260 | Average$537 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$311 | Average$854 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$351 | Average$567 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$370 | Average$468 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$370 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$393 | Average$579 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$408 | Average$527 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$412 | Average$659 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$437 | Average$604 | FlexibilityNo cancel fee | On-timeN/A |