$239+ Cheap flights from Maine to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Cheapest flights from Maine to PortugalExplore the most affordable flight options available from Maine to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
Explore the most affordable flight options available from Maine to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:55 pm
BOS
- FAO
1 stop14h 10m
Multiple Airlines
Thu 10/221:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$604
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Mon 11/22:55 pm
TER
- BOS
1 stop33h 50m
TAP AIR PORTUGAL
Deal found 5/30![TAP AIR PORTUGAL logo]()
$624
This oojo deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:05 pm
BOS
- TER
1 stop14h 45m
TAP AIR PORTUGAL
Tue 10/207:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$628
This oojo deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Tue 9/157:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$629
This oojo deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Fri 9/46:10 pm
TER
- BOS
1 stop30h 10m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$645
This oojo deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:05 pm
BOS
- TER
1 stop12h 55m
TAP AIR PORTUGAL
Sat 9/57:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$648
This oojo deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Mon 8/317:05 am
TER
- BOS
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$649
This FlightHub deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:40 pm
BOS
- TER
1 stop20h 35m
TAP AIR PORTUGAL
Tue 9/17:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$656
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Tue 9/17:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$661
This Booking.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:05 pm
BOS
- TER
1 stop25h 10m
Multiple Airlines
Tue 10/206:05 pm
TER
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$662
This oojo deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Mon 11/302:55 pm
TER
- BOS
1 stop33h 50m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$665
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:05 pm
BOS
- TER
1 stop14h 45m
TAP AIR PORTUGAL
Tue 9/221:40 pm
TER
- BOS
1 stop29h 05m
TAP AIR PORTUGAL
Deal found 5/30![TAP AIR PORTUGAL logo]()
$666
Best flights from Maine to PortugalDiscover carefully curated flight deals from Maine to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
Discover carefully curated flight deals from Maine to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 4, 2026.
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am
BOS
- OPO
1 stop23h 30m
United Airlines
Thu 11/512:35 pm
OPO
- BOS
2 stops25h 49m
United Airlines
Deal found 5/30![United Airlines logo]()
$696
This KLM deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:10 pm
BOS
- OPO
1 stop10h 20m
KLM
Mon 8/317:55 pm
OPO
- BOS
1 stop22h 24m
KLM
Deal found 5/30![KLM logo]()
$715
This Mytrip deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:50 pm
BOS
- FAO
2 stops18h 35m
Multiple Airlines
Wed 8/268:05 pm
FAO
- BOS
3 stops30h 22m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$753
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Fri 11/206:40 am
TER
- BOS
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$772
This SWISS deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:40 pm
BOS
- FAO
1 stop15h 40m
SWISS
Wed 9/307:05 pm
FAO
- BOS
1 stop29h 50m
SWISS
Deal found 6/3![SWISS logo]()
$816
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:35 pm
PWM
- LIS
1 stop12h 25m
Delta
Sat 11/145:00 am
LIS
- PWM
2 stops23h 49m
Delta
Deal found 6/1![Delta logo]()
$827
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:00 am
BOS
- OPO
1 stop20h 45m
United Airlines
Sat 9/512:10 pm
OPO
- BOS
1 stop26h 40m
United Airlines
Deal found 5/31![United Airlines logo]()
$731
This KLM deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:45 pm
BOS
- OPO
1 stop12h 40m
KLM
Tue 8/186:50 pm
OPO
- BOS
1 stop23h 28m
KLM
Deal found 6/3![KLM logo]()
$775
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:15 pm
BOS
- FNC
1 stop17h 35m
TAP AIR PORTUGAL
Mon 9/78:35 am
FNC
- BOS
1 stop16h 45m
TAP AIR PORTUGAL
Deal found 5/30![TAP AIR PORTUGAL logo]()
$789
This Gotogate deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:15 pm
BOS
- HOR
1 stop17h 50m
Multiple Airlines
Fri 10/167:25 pm
HOR
- BOS
1 stop28h 25m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$793
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:27 pm
BOS
- OPO
1 stop32h 18m
United Airlines
Sat 9/1912:20 pm
OPO
- BOS
1 stop31h 21m
United Airlines
Deal found 6/2![United Airlines logo]()
$731
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/149:40 pm
BOS
- LIS
Nonstop6h 20m
Delta
Fri 11/2711:15 am
LIS
- BOS
Nonstop7h 44m
Delta
Deal found 5/30![Delta logo]()
$861
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:00 am
BOS
- OPO
1 stop20h 45m
United Airlines
Wed 9/211:20 am
OPO
- BOS
1 stop27h 30m
United Airlines
Deal found 5/30![United Airlines logo]()
$736
This KLM deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:55 pm
BOS
- FAO
1 stop11h 55m
KLM
Sat 11/219:25 am
FAO
- BOS
1 stop33h 00m
KLM
Deal found 5/30![KLM logo]()
$815
This Gotogate deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:45 am
BOS
- HOR
2 stops18h 45m
Multiple Airlines
Sun 9/138:20 pm
HOR
- BOS
1 stop27h 30m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$838
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Sat 10/107:35 pm
PDL
- BOS
1 stop23h 05m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$856
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/299:40 pm
BOS
- LIS
Nonstop6h 20m
Delta
Tue 12/811:15 am
LIS
- BOS
Nonstop7h 44m
Delta
Deal found 6/1![Delta logo]()
$861
This KLM deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:40 pm
BOS
- FAO
2 stops17h 10m
KLM
Sun 11/86:50 pm
FAO
- BOS
1 stop29h 11m
KLM
Deal found 5/31![KLM logo]()
$820
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:40 am
BOS
- OPO
1 stop15h 20m
United Airlines
Wed 8/2611:20 am
OPO
- BOS
1 stop11h 47m
United Airlines
Deal found 6/3![United Airlines logo]()
$748
This Gotogate deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:15 pm
BOS
- HOR
1 stop12h 00m
Multiple Airlines
Mon 9/141:40 pm
HOR
- BOS
1 stop10h 10m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$847
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Fri 7/3112:45 pm
LIS
- BOS
Nonstop7h 25m
Delta
Deal found 6/2![Delta logo]()
$861
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 pm
BOS
- FNC
1 stop16h 35m
TAP AIR PORTUGAL
Sun 11/228:45 am
FNC
- BOS
1 stop17h 00m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$869
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am
PWM
- LIS
1 stop21h 10m
United Airlines
Thu 11/51:00 pm
LIS
- PWM
2 stops37h 27m
United Airlines
Deal found 6/2![United Airlines logo]()
$780
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1811:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Wed 8/512:45 pm
LIS
- BOS
Nonstop7h 30m
Delta
Deal found 5/31![Delta logo]()
$862
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:30 pm
BOS
- TER
2 stops16h 25m
TAP AIR PORTUGAL
Thu 9/37:15 am
TER
- BOS
1 stop11h 30m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$871
This FlightHub deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:25 pm
BOS
- HOR
2 stops32h 20m
Multiple Airlines
Fri 11/273:00 pm
HOR
- BOS
1 stop9h 00m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$879
This KLM deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1811:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Sun 7/2612:45 pm
LIS
- BOS
Nonstop7h 25m
KLM
Deal found 6/2![KLM logo]()
$885
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:44 pm
BOS
- OPO
1 stop32h 11m
United Airlines
Sat 11/712:35 pm
OPO
- BOS
2 stops25h 49m
United Airlines
Deal found 6/3![United Airlines logo]()
$786
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:45 pm
BOS
- TER
2 stops28h 30m
TAP AIR PORTUGAL
Wed 9/27:15 am
TER
- BOS
1 stop11h 30m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$871
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:10 pm
BOS
- LIS
1 stop13h 05m
Delta
Mon 9/712:45 pm
LIS
- BOS
Nonstop7h 35m
Delta
Deal found 6/3![Delta logo]()
$879
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated June 4, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Wed 7/152:05 pm
OPO
- BOS
1 stop12h 00m
Iberia
Deal found 5/30![Iberia logo]()
$691
This FlightHub deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:35 pm
BOS
- OPO
1 stop10h 25m
Multiple Airlines
Fri 9/48:40 am
OPO
- BOS
1 stop16h 15m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/911:35 pm
BOS
- FAO
1 stop18h 10m
Multiple Airlines
Thu 7/231:35 pm
FAO
- BOS
1 stop13h 10m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$771
This Booking.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:35 am
BOS
- OPO
2 stops16h 15m
Air Canada
Wed 9/2311:20 am
OPO
- BOS
2 stops16h 20m
Air Canada
Deal found 6/1![Air Canada logo]()
$696
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/153:35 pm
BOS
- OPO
1 stop10h 25m
United Airlines
Wed 9/211:20 am
OPO
- BOS
1 stop32h 21m
United Airlines
Deal found 6/2![United Airlines logo]()
$688
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:45 am
BOS
- OPO
2 stops20h 10m
United Airlines
Tue 9/112:15 pm
OPO
- BOS
2 stops26h 33m
United Airlines
Deal found 5/30![United Airlines logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:45 pm
BOS
- TER
1 stop20h 30m
Multiple Airlines
Tue 7/287:25 am
TER
- BOS
2 stops16h 14m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$763
This Iberia deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:05 pm
BOS
- OPO
1 stop17h 55m
Iberia
Wed 8/52:05 pm
OPO
- BOS
1 stop12h 00m
Iberia
Deal found 5/30![Iberia logo]()
$682
This KAYAK deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/223:35 pm
BOS
- OPO
1 stop10h 25m
Lufthansa
Tue 8/2512:15 pm
OPO
- BOS
1 stop14h 12m
Lufthansa
Deal found 6/2![Lufthansa logo]()
$687
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:40 am
BOS
- OPO
1 stop15h 20m
United Airlines
Fri 8/289:00 am
OPO
- BOS
1 stop17h 59m
United Airlines
Deal found 6/2![United Airlines logo]()
$694
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2310:20 pm
BOS
- TER
1 stop10h 35m
Multiple Airlines
Mon 7/2710:10 pm
TER
- BOS
2 stops25h 05m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:19 am
BOS
- OPO
2 stops18h 41m
United Airlines
Wed 9/211:20 am
OPO
- BOS
2 stops35h 32m
United Airlines
Deal found 5/30![United Airlines logo]()
$679
One-way flights from Maine to PortugalSearch for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This eDestinos deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:05 pm
BOS
- PDL
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$239
This Booking.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:45 pm
BOS
- PDL
1 stop10h 30m
TAP AIR PORTUGAL
Deal found 6/4![TAP AIR PORTUGAL logo]()
$257
This Booking.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:05 pm
BOS
- PDL
1 stop25h 40m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$258
This Booking.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Deal found 6/1![TAP AIR PORTUGAL logo]()
$259
This Mytrip deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:40 pm
BOS
- PDL
1 stop31h 05m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$262
This FlightHub deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:40 pm
BOS
- PDL
1 stop21h 05m
TAP AIR PORTUGAL
Deal found 5/31![TAP AIR PORTUGAL logo]()
$271
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:45 pm
BOS
- PDL
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 5/30![TAP AIR PORTUGAL logo]()
$274
This oojo deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:05 pm
BOS
- TER
1 stop25h 10m
TAP AIR PORTUGAL
Deal found 6/3![TAP AIR PORTUGAL logo]()
$298
This Mytrip deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:15 pm
BOS
- PIX
1 stop18h 15m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:05 am
BOS
- FAO
3 stops56h 25m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$318
This Cheapflightsfares deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 6/4![Azores Airlines logo]()
$325
Find flight deals from Maine to Portugal
Keep the following information in mind while searching for Maine to Portugal flight deals. Data was last updated June 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $604 (Kiwi.com) |
One-way from | $239 (eDestinos) |
Popular in | December |
Cheapest in | February |
Cheapflights Fare Finder
Customize your flight search to find flights from Maine to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 4, 2026.
Use the filters below to find and compare flights from Maine to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Fri 10/30
6:00 am-9:30 am
1 stop23h 30m
Porto
Thu 11/5
12:35 pm-9:24 am
2 stops25h 49m
$696
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 7/6
5:10 pm-8:30 am
1 stop10h 20m
Porto
Mon 8/31
7:55 pm-1:19 pm
1 stop22h 24m
$715
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 7/6
8:00 am-9:45 am
1 stop20h 45m
Porto
Sat 9/5
12:10 pm-9:50 am
1 stop26h 40m
$731
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sat 7/25
8:27 pm-9:45 am
1 stop32h 18m
Porto
Sat 9/19
12:20 pm-2:41 pm
1 stop31h 21m
$731
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Thu 7/16
8:00 am-9:45 am
1 stop20h 45m
Porto
Wed 9/2
11:20 am-9:50 am
1 stop27h 30m
$736
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Fri 8/7
10:40 am-7:00 am
1 stop15h 20m
Porto
Wed 8/26
11:20 am-6:07 pm
1 stop11h 47m
$748
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Wed 8/19
8:50 pm-8:25 pm
2 stops18h 35m
Faro
Wed 8/26
8:05 pm-9:27 pm
3 stops30h 22m
$753
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Mon 11/16
6:00 pm-11:00 am
1 stop13h 00m
Lajes
Fri 11/20
6:40 am-2:40 pm
1 stop12h 00m
$772
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sat 8/8
9:45 pm-3:25 pm
1 stop12h 40m
Porto
Tue 8/18
6:50 pm-1:18 pm
1 stop23h 28m
$775
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Sun 11/1
6:00 am-8:10 am
1 stop21h 10m
Lisbon Humberto Delgado
Thu 11/5
1:00 pm-9:27 pm
2 stops37h 27m
$780
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Maine to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Maine with our price prediction graph.
BOS-TER
BOS-PIX
BOS-FAO
BOS-LIS
PWM-LIS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Maine to Portugal
USME-PT0
BOS-TER
BOS-PIX
BOS-FAO
BOS-LIS
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Maine to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Maine to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maine to Portugal by cabin class
Find flights from Maine to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Maine and Portugal flights
Browse other Maine and Portugal flight options. Last updated on June 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Portugal
Find the right flight back to Maine after your stay in Portugal
Maine to Portugal flights
Consider these flights traveling from Maine to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top airline flying from Maine to Portugal
Discover the top airline that operate flights from Maine to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$707 | FlexibilityNo cancel fee | On-time69% |