$323+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
May 15 — May 221
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 April 15, 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 April 15, 2026.
This Mytrip deal was found by Cheapflights users on 4/12. 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 4/2611:00 pm
BOS
- FAO
1 stop32h 50m
Icelandair
Mon 5/111:50 pm
FAO
- BOS
1 stop12h 55m
Icelandair
Deal found 4/12![Icelandair logo]()
$500
This Super.com deal was found by Cheapflights users on 4/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:45 pm
BOS
- OPO
Nonstop6h 45m
TAP AIR PORTUGAL
Tue 11/36:00 pm
OPO
- BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Deal found 4/9![TAP AIR PORTUGAL logo]()
$536
This oojo deal was found by Cheapflights users on 4/10. 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 11/310:45 pm
BOS
- OPO
Nonstop6h 45m
TAP AIR PORTUGAL
Mon 11/92:00 pm
OPO
- BOS
1 stop29h 40m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$564
This Mytrip deal was found by Cheapflights users on 4/13. 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.
Tue 10/203:35 pm
BOS
- OPO
1 stop10h 25m
Multiple Airlines
Tue 11/37:20 pm
OPO
- BOS
1 stop30h 00m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 10/206:05 pm
BOS
- OPO
1 stop23h 40m
TAP AIR PORTUGAL
Tue 10/276:00 pm
OPO
- BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$576
This oojo deal was found by Cheapflights users on 4/10. 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.
Wed 10/1410:45 pm
BOS
- OPO
1 stop16h 40m
TAP AIR PORTUGAL
Sun 10/186:00 pm
OPO
- BOS
Nonstop7h 20m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$577
This Iberia deal was found by Cheapflights users on 4/14. 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.
Sat 5/95:40 pm
BOS
- OPO
1 stop17h 20m
Iberia
Sat 5/168:35 am
OPO
- BOS
1 stop17h 30m
Iberia
Deal found 4/14![Iberia logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 4/289:50 pm
BOS
- OPO
1 stop20h 40m
Turkish Airlines
Thu 5/146:10 am
OPO
- BOS
1 stop18h 45m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$583
This Iberia deal was found by Cheapflights users on 4/14. 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.
Sun 6/2111:45 pm
BOS
- OPO
1 stop16h 35m
Iberia
Mon 6/2910:00 pm
OPO
- BOS
1 stop28h 05m
Iberia
Deal found 4/14![Iberia logo]()
$585
This Justfly.com deal was found by Cheapflights users on 4/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:35 pm
BOS
- OPO
1 stop10h 25m
Multiple Airlines
Fri 11/2012:05 pm
OPO
- BOS
1 stop13h 15m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 4/13. 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 10/126:50 pm
BOS
- OPO
1 stop31h 10m
United Airlines
Fri 11/2012:35 pm
OPO
- BOS
1 stop12h 47m
United Airlines
Deal found 4/13![United Airlines logo]()
$594
This oojo deal was found by Cheapflights users on 4/10. 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 10/277:00 pm
BOS
- PDL
1 stop20h 35m
TAP AIR PORTUGAL
Mon 11/27:25 pm
PDL
- BOS
1 stop23h 15m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$605
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 April 15, 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 April 15, 2026.
This Delta deal was found by Cheapflights users on 4/11. 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 4/267:05 pm
BOS
- OPO
1 stop15h 20m
Delta
Sun 5/35:55 am
OPO
- BOS
1 stop12h 30m
Delta
Deal found 4/11![Delta logo]()
$665
This Gotogate deal was found by Cheapflights users on 4/11. 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.
Tue 5/129:15 pm
BOS
- SJZ
2 stops31h 45m
Multiple Airlines
Tue 5/194:10 pm
SJZ
- BOS
1 stop7h 40m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$713
This KLM deal was found by Cheapflights users on 4/11. 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.
Wed 4/292:51 pm
PWM
- LIS
2 stops18h 44m
KLM
Mon 5/47:45 pm
LIS
- PWM
2 stops25h 12m
KLM
Deal found 4/11![KLM logo]()
$768
This Turkish Airlines deal was found by Cheapflights users on 4/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am
PWM
- LIS
2 stops52h 35m
Turkish Airlines
Tue 9/225:05 pm
LIS
- PWM
2 stops35h 47m
Turkish Airlines
Deal found 4/12![Turkish Airlines logo]()
$795
This British Airways deal was found by Cheapflights users on 4/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:50 pm
BOS
- OPO
1 stop31h 35m
British Airways
Wed 5/138:20 pm
OPO
- BOS
1 stop31h 15m
British Airways
Deal found 4/12![British Airways logo]()
$801
This Air Transat deal was found by Cheapflights users on 4/12. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:35 pm
BOS
- OPO
1 stop12h 10m
Air Transat
Tue 6/161:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 4/12![Air Transat logo]()
$819
This United Airlines deal was found by Cheapflights users on 4/11. 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 4/297:33 pm
PWM
- LIS
1 stop9h 57m
United Airlines
Mon 5/412:20 pm
LIS
- PWM
1 stop16h 39m
United Airlines
Deal found 4/11![United Airlines logo]()
$820
This Cheapflightsfares deal was found by Cheapflights users on 4/9. 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.
Sun 10/49:15 pm
BOS
- FNC
1 stop10h 10m
Azores Airlines
Fri 10/92:40 pm
FNC
- BOS
1 stop10h 10m
Azores Airlines
Deal found 4/9![Azores Airlines logo]()
$832
This SWISS deal was found by Cheapflights users on 4/11. 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.
Thu 4/309:40 pm
BOS
- FAO
1 stop15h 35m
SWISS
Tue 5/57:05 pm
FAO
- BOS
1 stop29h 50m
SWISS
Deal found 4/11![SWISS logo]()
$844
This TAP AIR PORTUGAL deal was found by Cheapflights users on 4/10. 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.
Sat 7/410:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Tue 7/147:05 am
TER
- BOS
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$1,145
This Virgin Atlantic deal was found by Cheapflights users on 4/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Sun 5/2412:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 4/14![Virgin Atlantic logo]()
$1,342
This Air Europa deal was found by Cheapflights users on 4/12. 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
BOS
- LIS
2 stops32h 15m
Air Europa
Tue 6/911:35 am
LIS
- BOS
2 stops16h 31m
Air Europa
Deal found 4/12![Air Europa logo]()
$1,351
This Delta deal was found by Cheapflights users on 4/12. 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.
Mon 5/41:30 pm
BOS
- OPO
2 stops16h 10m
Delta
Mon 5/186:30 am
OPO
- BOS
2 stops17h 33m
Delta
Deal found 4/12![Delta logo]()
$731
This KLM deal was found by Cheapflights users on 4/10. 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 8/177:05 pm
BOS
- FAO
1 stop19h 25m
KLM
Mon 8/249:45 pm
FAO
- BOS
1 stop23h 52m
KLM
Deal found 4/10![KLM logo]()
$787
This Mytrip deal was found by Cheapflights users on 4/14. 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.
Mon 6/155:10 am
BOS
- FAO
3 stops37h 20m
Multiple Airlines
Mon 6/226:05 am
FAO
- BOS
2 stops32h 45m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$847
This Air Transat deal was found by Cheapflights users on 4/14. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:05 am
BOS
- LIS
1 stop18h 30m
Air Transat
Sat 7/118:15 am
LIS
- BOS
1 stop17h 40m
Air Transat
Deal found 4/14![Air Transat logo]()
$853
This United Airlines deal was found by Cheapflights users on 4/11. 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 5/135:45 pm
BOS
- FAO
1 stop15h 45m
United Airlines
Tue 5/1911:40 am
FAO
- BOS
1 stop13h 14m
United Airlines
Deal found 4/11![United Airlines logo]()
$864
This KLM deal was found by Cheapflights users on 4/12. 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.
Sun 9/207:00 pm
BOS
- FAO
1 stop33h 10m
KLM
Sun 10/49:20 am
FAO
- BOS
1 stop12h 16m
KLM
Deal found 4/12![KLM logo]()
$796
This oojo deal was found by Cheapflights users on 4/11. 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.
Sun 6/711:45 am
BOS
- TER
1 stop17h 20m
Multiple Airlines
Fri 6/126:40 am
TER
- BOS
1 stop17h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$866
This Delta deal was found by Cheapflights users on 4/10. 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.
Wed 4/292:51 pm
PWM
- LIS
1 stop12h 09m
Delta
Mon 5/410:00 am
LIS
- PWM
1 stop19h 46m
Delta
Deal found 4/10![Delta logo]()
$873
This KLM deal was found by Cheapflights users on 4/10. 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.
Sun 8/237:05 pm
BOS
- FAO
1 stop33h 05m
KLM
Mon 8/319:45 pm
FAO
- BOS
1 stop20h 34m
KLM
Deal found 4/10![KLM logo]()
$807
This Air Transat deal was found by Cheapflights users on 4/10. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:35 pm
BOS
- OPO
1 stop12h 10m
Air Transat
Sun 7/268:25 am
OPO
- BOS
1 stop17h 30m
Air Transat
Deal found 4/10![Air Transat logo]()
$893
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 7/148:27 pm
BOS
- PDL
1 stop8h 13m
United Airlines
Fri 7/249:35 am
PDL
- BOS
1 stop12h 47m
United Airlines
Deal found 4/12![United Airlines logo]()
$905
This Mytrip deal was found by Cheapflights users on 4/13. 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.
Mon 6/19:15 pm
BOS
- TER
Nonstop5h 05m
Multiple Airlines
Sat 6/66:50 am
TER
- BOS
3 stops30h 59m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$889
This Air Transat deal was found by Cheapflights users on 4/12. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:05 am
BOS
- OPO
1 stop20h 50m
Air Transat
Mon 5/251:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 4/12![Air Transat logo]()
$899
This United Airlines deal was found by Cheapflights users on 4/13. 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 7/125:44 pm
BOS
- PDL
1 stop10h 56m
United Airlines
Wed 7/229:35 am
PDL
- BOS
1 stop12h 47m
United Airlines
Deal found 4/13![United Airlines logo]()
$905
This Delta deal was found by Cheapflights users on 4/10. 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.
Wed 5/61:30 pm
BOS
- OPO
2 stops16h 10m
Delta
Mon 5/115:00 am
OPO
- BOS
2 stops16h 00m
Delta
Deal found 4/10![Delta logo]()
$916
This KLM deal was found by Cheapflights users on 4/11. 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 8/244:45 pm
BOS
- FAO
1 stop19h 40m
KLM
Sun 8/306:55 pm
FAO
- BOS
1 stop23h 23m
KLM
Deal found 4/11![KLM logo]()
$867
This British Airways deal was found by Cheapflights users on 4/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:55 pm
BOS
- FNC
1 stop32h 35m
British Airways
Mon 7/276:55 pm
FNC
- BOS
1 stop27h 05m
British Airways
Deal found 4/13![British Airways logo]()
$1,189
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Tue 4/282:37 pm
BOS
- OPO
2 stops14h 08m
United Airlines
Sun 5/312:35 pm
OPO
- BOS
1 stop12h 19m
United Airlines
Deal found 4/10![United Airlines logo]()
$909
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated April 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/9. 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.
Tue 4/147:05 pm
BOS
- OPO
1 stop15h 20m
Delta
Wed 4/225:00 am
OPO
- BOS
1 stop13h 13m
Delta
Deal found 4/9![Delta logo]()
$614
This Mytrip deal was found by Cheapflights users on 4/12. 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 4/2611:00 pm
BOS
- FAO
1 stop32h 50m
Icelandair
Mon 5/111:50 pm
FAO
- BOS
1 stop12h 55m
Icelandair
Deal found 4/12![Icelandair logo]()
$500
This Booking.com deal was found by Cheapflights users on 4/9. 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 4/2610:30 pm
BOS
- OPO
Nonstop6h 35m
TAP AIR PORTUGAL
Sat 5/95:40 pm
OPO
- BOS
Nonstop7h 40m
TAP AIR PORTUGAL
Deal found 4/9![TAP AIR PORTUGAL logo]()
$605
This Trip.com deal was found by Cheapflights users on 4/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:30 pm
BOS
- FNC
1 stop10h 45m
TAP AIR PORTUGAL
Sat 5/912:10 am
FNC
- BOS
1 stop25h 10m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$606
This Gotogate deal was found by Cheapflights users on 4/10. 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.
Sun 4/2610:30 pm
BOS
- OPO
Nonstop6h 35m
TAP AIR PORTUGAL
Sun 5/36:00 pm
OPO
- BOS
Nonstop7h 20m
TAP AIR PORTUGAL
Deal found 4/10![TAP AIR PORTUGAL logo]()
$606
This Expedia deal was found by Cheapflights users on 4/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:40 pm
BOS
- OPO
1 stop17h 20m
Iberia
Wed 5/68:20 am
OPO
- BOS
1 stop12h 50m
Iberia
Deal found 4/11![Iberia logo]()
$598
This Priceline deal was found by Cheapflights users on 4/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:40 pm
BOS
- OPO
1 stop13h 05m
Iberia
Thu 5/712:25 pm
OPO
- BOS
2 stops16h 22m
Iberia
Deal found 4/11![Iberia logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 4/289:50 pm
BOS
- OPO
1 stop20h 40m
Turkish Airlines
Thu 5/146:10 am
OPO
- BOS
1 stop18h 45m
Turkish Airlines
Deal found 4/10![Turkish Airlines logo]()
$583
This Iberia deal was found by Cheapflights users on 4/14. 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.
Tue 4/2810:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Mon 5/1110:00 pm
OPO
- BOS
1 stop28h 05m
Iberia
Deal found 4/14![Iberia logo]()
$585
This American Airlines deal was found by Cheapflights users on 4/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:34 am
BOS
- OPO
2 stops15h 06m
American Airlines
Tue 5/58:20 am
OPO
- BOS
1 stop16h 05m
American Airlines
Deal found 4/11![American Airlines logo]()
$603
This Iberia deal was found by Cheapflights users on 4/11. 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.
Tue 4/2810:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Tue 5/58:20 am
OPO
- BOS
1 stop16h 05m
Iberia
Deal found 4/11![Iberia logo]()
$610
This Iberia deal was found by Cheapflights users on 4/14. 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.
Sat 5/95:40 pm
BOS
- OPO
1 stop17h 20m
Iberia
Sat 5/168:35 am
OPO
- BOS
1 stop17h 30m
Iberia
Deal found 4/14![Iberia logo]()
$581
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 April 15, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This Booking.com deal was found by Cheapflights users on 4/10. 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.
Mon 6/19:15 pm
BOS
- OPO
1 stop12h 30m
Azores Airlines
Deal found 4/10![Azores Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 4/209:15 pm
BOS
- PDL
1 stop12h 15m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$329
This Booking.com deal was found by Cheapflights users on 4/10. 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.
Mon 6/19:15 pm
BOS
- LIS
1 stop19h 20m
Azores Airlines
Deal found 4/10![Azores Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/109:45 pm
BOS
- OPO
2 stops15h 45m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$332
This Fareboom deal was found by Cheapflights users on 4/12. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:45 am
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 4/12![Azores Airlines logo]()
$333
This Booking.com deal was found by Cheapflights users on 4/12. 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.
Fri 9/259:15 pm
BOS
- FNC
1 stop10h 10m
Azores Airlines
Deal found 4/12![Azores Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 4/278:50 pm
BOS
- LIS
3 stops19h 30m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$335
This Booking.com deal was found by Cheapflights users on 4/14. 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 9/279:15 pm
BOS
- FNC
2 stops23h 20m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Sat 4/2511:00 pm
BOS
- OPO
2 stops38h 30m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$337
This Iberia deal was found by Cheapflights users on 4/14. 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 6/110:50 pm
BOS
- LIS
1 stop16h 45m
Iberia
Deal found 4/14![Iberia logo]()
$338
This Iberia deal was found by Cheapflights users on 4/14. 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.
Fri 5/110:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Deal found 4/14![Iberia logo]()
$338
This Iberia deal was found by Cheapflights users on 4/11. 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.
Fri 5/110:50 pm
BOS
- LIS
1 stop13h 25m
Iberia
Deal found 4/11![Iberia logo]()
$339
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 April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $500 (Mytrip) |
One-way from | $323 (Booking.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,233 |
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 April 15, 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
Sun 4/26
7:05 pm-3:25 pm
1 stop15h 20m
Porto
Sun 5/3
5:55 am-1:25 pm
1 stop12h 30m
$665
BostonVelas
BOS - SJZ
BOSSJZ
Boston Logan Intl
Tue 5/12
9:15 pm-9:00 am
2 stops31h 45m
Velas Sao Jorge Island
Tue 5/19
4:10 pm-7:50 pm
1 stop7h 40m
$713
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 5/4
1:30 pm-10:40 am
2 stops16h 10m
Porto
Mon 5/18
6:30 am-7:03 pm
2 stops17h 33m
$731
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Wed 4/29
2:51 pm-2:35 pm
2 stops18h 44m
Lisbon Humberto Delgado
Mon 5/4
7:45 pm-3:57 pm
2 stops25h 12m
$768
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Mon 8/17
7:05 pm-7:30 pm
1 stop19h 25m
Faro
Mon 8/24
9:45 pm-4:37 pm
1 stop23h 52m
$787
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Thu 9/17
6:00 am-3:35 pm
2 stops52h 35m
Lisbon Humberto Delgado
Tue 9/22
5:05 pm-11:52 pm
2 stops35h 47m
$795
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 9/20
7:00 pm-9:10 am
1 stop33h 10m
Faro
Sun 10/4
9:20 am-4:36 pm
1 stop12h 16m
$796
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Wed 4/22
9:50 pm-10:25 am
1 stop31h 35m
Porto
Wed 5/13
8:20 pm-10:35 pm
1 stop31h 15m
$801
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 8/23
7:05 pm-9:10 am
1 stop33h 05m
Faro
Mon 8/31
9:45 pm-1:19 pm
1 stop20h 34m
$807
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Fri 6/5
6:35 pm-11:45 am
1 stop12h 10m
Porto
Tue 6/16
1:30 pm-9:05 am
1 stop24h 35m
$819
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-OPO
BOS-SJZ
PWM-LIS
BOS-FNC
BOS-FAO
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-OPO
BOS-SJZ
PWM-LIS
BOS-FNC
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 April 15, 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 April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$721 | FlexibilityNo cancel fee | On-time69% |