Use the FlyLogan app for real-time flight updates and pre-order food via BOS2GO, saving time before your evening departure.

Most accurate provider | eDreams 3 stars  | 
|---|---|
Most trusted provider | eDreams 3 stars  | 
Round-trip from | $417 (oojo)  | 
One-way from | $199 (Kiwi.com)  | 
Popular in | June | 
Cheapest in | September | 
Average price | $511 | 
Good round-trip deal | $507 or less | 
Good one-way deal | $271 or less | 
Fly from
Fly to
Route
Depart
Return
Price
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
vie. 1/16
6:21 pm-9:35 am
2 stops57h 14m
Barcelona-El Prat
mar. 2/10
1:35 pm-2:17 pm
2 stops30h 42m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
mié. 1/14
10:30 am-9:35 am
2 stops17h 05m
Barcelona-El Prat
jue. 3/12
12:35 pm-5:17 pm
2 stops33h 42m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
lun. 1/19
10:15 am-9:35 am
1 stop17h 20m
Barcelona-El Prat
jue. 1/29
1:35 pm-9:32 am
1 stop25h 57m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
jue. 1/22
6:00 am-9:00 am
2 stops21h 00m
Barcelona-El Prat
mar. 1/27
1:35 pm-1:13 pm
2 stops29h 38m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
mar. 1/20
11:12 am-8:40 am
1 stop15h 28m
Barcelona-El Prat
mié. 1/28
10:55 am-1:04 am
1 stop20h 09m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
dom. 1/11
12:08 pm-9:35 am
2 stops15h 27m
Barcelona-El Prat
mié. 2/11
11:00 am-11:49 pm
2 stops18h 49m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
mié. 1/14
10:10 pm-5:35 pm
2 stops13h 25m
Barcelona-El Prat
mié. 2/11
9:55 am-6:35 pm
2 stops14h 40m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
sáb. 1/24
10:40 pm-11:55 am
Nonstop7h 15m
Barcelona-El Prat
vie. 1/30
9:15 pm-3:15 pm
1 stop24h 00m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
jue. 11/13
10:40 pm-11:55 am
Nonstop7h 15m
Barcelona-El Prat
dom. 11/23
12:30 pm-8:22 pm
1 stop13h 52m
BostonBarcelona
BOS - BCN
BOSBCN
Boston Logan Intl
vie. 11/14
10:40 am-9:00 am
2 stops16h 20m
Barcelona-El Prat
dom. 11/16
9:55 am-1:25 pm
1 stop33h 30m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | 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*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | 
The best time to book flights from Boston to Barcelona-El Prat Airport is 56 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $275). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of $412). 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.
It’s typically best to fly out from Boston to Barcelona-El Prat Airport in the evening. Doing so could potentially save you 28% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their Boston to Barcelona-El Prat Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 9% of weekly flights between Boston and Barcelona have experienced delays in the past year, with the average delay time being 108 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Iberia have had the lowest number of delays on this route, with no flights being classified as delayed.
Lisbon (LIS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Boston to Barcelona-El Prat Airport on Cheapflights.
Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 10h 30m.
Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 10h 30m.
Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 2h 01m.
Entertainment
Food
Crew
Overall
Boarding
Comfort
Reviews
Jeremy,Sep 2025
SAN - PHL
Entertainment
Food
Crew
Overall
Boarding
Comfort
Reviews
Jeremy,Sep 2025
SAN - PHL
Entertainment
Food
Crew
Overall
Boarding
Comfort
Reviews
Jeremy,Sep 2025
SAN - PHL
Entertainment
Food
Crew
Overall
Boarding
Comfort
Reviews
Jeremy,Sep 2025
SAN - PHL
Entertainment
Food
Crew
Overall
Boarding
Comfort
Reviews
Jeremy,Sep 2025
SAN - PHL
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$269 | Average$323 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$309 | Average$320 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$334 | Average$550 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$349 | Average$516 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$350 | Average$541 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$355 | Average$541 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$399 | Average$553 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$409 | Average$707 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$423 | Average$712 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$429 | Average$702 | FlexibilityNo cancel fee | On-time81% |