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Cheap Flights from Boston to Lisbon
BOS → LIS • About 6h 30m nonstop • 3 airlines
Adults
+12 years old
Children
2-11 years old
Infants
Under 2 years
Fares shown are the lowest we have recorded recently on this route and are not a live quote. Run a search above for today's availability, or call (800) 399-8818 and an agent will price it with you.
Flights from Boston (BOS) to Lisbon (LIS)
The Boston to Lisbon route covers roughly 3,160 miles and takes about 6h 30m nonstop. 3 airlines compete on it — TAP Air Portugal, Azores Airlines, Delta Air Lines — which keeps fares moving and makes it worth comparing carriers rather than defaulting to the one you usually fly. We have seen one-way fares on this route start around $254.
Lisbon is built across seven hills above the Tagus, with tiled façades, funiculars and viewpoints that make the climbs worth it. Alfama, the oldest quarter, survived the 1755 earthquake largely intact.
It is also the closest continental European capital to the United States, which makes the flight shorter and the fares consistently lower than to Paris or Rome.
Airlines flying BOS to LIS
- TAP Air Portugal
- Azores Airlines
- Delta Air Lines
Airports on this route
- Departing: Boston Logan International Airport (BOS)
- Arriving: Humberto Delgado Airport (LIS)
Best time to fly to Lisbon
March through June and September through October — warm and dry without the August heat and crowds.
Top things to do in Lisbon
- Belém Tower and Jerónimos Monastery
- Alfama and Fado houses
- Tram 28
- Time Out Market
- São Jorge Castle
- Sintra day trip
- LX Factory
How to save on Boston to Lisbon flights
- Shift your departure by one or two days — midweek departures on this route are consistently cheaper than Friday and Sunday.
- Book four to eight weeks ahead. Last-minute fares on BOS to LIS routinely run double the advance price.
- Compare all 3 carriers rather than checking one airline's own site.
- Lisbon is frequently the cheapest transatlantic gateway to Europe from the US East Coast.
- TAP offers a free stopover of up to five nights if you are continuing elsewhere in Europe.
- The hills are steep — the funiculars and Elevador de Santa Justa exist for a reason.
About flights from Boston to Lisbon
Fares on the BOS to LIS route move with demand, so flexibility is worth more than timing tricks. Shifting your departure by a day or two, flying midweek instead of Friday or Sunday, and booking four to eight weeks ahead all reduce the fare on this route. Our agents also hold consolidator and unpublished fares that do not appear in online results.
TAP Air Portugal, Azores Airlines, Delta Air Lines all operate on this route. TAP Air Portugal typically offers the most frequencies, with Azores Airlines and Delta Air Lines providing competing schedules. Availability varies by season and by which Boston airport you depart from, so it is worth comparing all carriers before booking.
A nonstop flight takes about 6h 30m. Itineraries with a connection typically add two to four hours depending on the layover city and the length of the stop.
The two cities are roughly 3,160 miles apart by air.
Departures leave from Boston Logan International Airport (BOS). Arrivals land at Humberto Delgado Airport (LIS).
March through June and September through October — warm and dry without the August heat and crowds.