$250+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jul 20 — Jul 271
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 20, 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 20, 2026.
This LEVEL deal was found by Cheapflights users on 6/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm
BOS
- FAO
1 stop29h 10m
LEVEL
Sun 10/1812:05 pm
FAO
- BOS
1 stop14h 40m
LEVEL
Deal found 6/15![LEVEL logo]()
$476
This LEVEL deal was found by Cheapflights users on 6/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:35 pm
BOS
- FAO
1 stop29h 10m
LEVEL
Sun 10/1112:05 pm
FAO
- BOS
1 stop14h 40m
LEVEL
Deal found 6/15![LEVEL logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 10/411:35 pm
BOS
- FAO
1 stop29h 10m
Multiple Airlines
Thu 10/89:40 am
FAO
- BOS
1 stop16h 25m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 9/3010:55 pm
BOS
- FAO
1 stop14h 10m
Multiple Airlines
Thu 10/81:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 9/18:50 pm
BOS
- FAO
2 stops20h 40m
Multiple Airlines
Thu 9/109:35 am
FAO
- BOS
1 stop16h 30m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$605
This Iberia deal was found by Cheapflights users on 6/16. 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 10/411:35 pm
BOS
- FAO
1 stop29h 10m
Iberia
Sun 10/1112:05 pm
FAO
- BOS
1 stop14h 40m
Iberia
Deal found 6/16![Iberia logo]()
$621
This oojo deal was found by Cheapflights users on 6/17. 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 stop25h 10m
TAP AIR PORTUGAL
Tue 10/207:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$627
This oojo deal was found by Cheapflights users on 6/15. 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 8/910:40 pm
BOS
- TER
1 stop20h 35m
TAP AIR PORTUGAL
Mon 10/121:40 pm
TER
- BOS
1 stop29h 05m
TAP AIR PORTUGAL
Deal found 6/15![TAP AIR PORTUGAL logo]()
$636
This Booking.com deal was found by Cheapflights users on 6/15. 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 10/126:05 pm
BOS
- TER
1 stop25h 10m
TAP AIR PORTUGAL
Mon 10/262:55 pm
TER
- BOS
1 stop33h 50m
TAP AIR PORTUGAL
Deal found 6/15![TAP AIR PORTUGAL logo]()
$639
This Gotogate deal was found by Cheapflights users on 6/19. 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.
Mon 8/246:05 pm
BOS
- TER
1 stop12h 55m
TAP AIR PORTUGAL
Tue 10/67:05 am
TER
- BOS
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/19![TAP AIR PORTUGAL logo]()
$647
This oojo deal was found by Cheapflights users on 6/15. 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.
Thu 10/297:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Thu 11/511:50 am
TER
- BOS
1 stop30h 50m
TAP AIR PORTUGAL
Deal found 6/15![TAP AIR PORTUGAL logo]()
$654
This Booking.com deal was found by Cheapflights users on 6/17. 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 6/17![Multiple Airlines logo]()
$663
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 20, 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 20, 2026.
This LEVEL deal was found by Cheapflights users on 6/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm
BOS
- FAO
1 stop29h 10m
LEVEL
Sun 10/1812:05 pm
FAO
- BOS
1 stop14h 40m
LEVEL
Deal found 6/15![LEVEL logo]()
$476
This Trip.com deal was found by Cheapflights users on 6/17. 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.
Sat 9/199:15 pm
BOS
- HOR
1 stop12h 00m
Multiple Airlines
Tue 9/298:50 am
HOR
- BOS
1 stop15h 00m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$694
This Delta deal was found by Cheapflights users on 6/15. 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 7/68:25 pm
BOS
- OPO
1 stop20h 50m
Delta
Fri 11/135:00 am
OPO
- BOS
1 stop13h 25m
Delta
Deal found 6/15![Delta logo]()
$696
This United Airlines deal was found by Cheapflights users on 6/17. 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 10/186:50 pm
BOS
- OPO
1 stop31h 00m
United Airlines
Thu 10/2211:50 am
OPO
- BOS
2 stops26h 54m
United Airlines
Deal found 6/17![United Airlines logo]()
$801
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/17. 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 9/1410:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Tue 9/297:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$807
This KLM deal was found by Cheapflights users on 6/18. 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 11/118:45 pm
BOS
- FNC
2 stops39h 25m
KLM
Wed 11/1810:25 am
FNC
- BOS
1 stop32h 00m
KLM
Deal found 6/18![KLM logo]()
$820
This British Airways deal was found by Cheapflights users on 6/19. 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 10/187:30 pm
BOS
- FAO
1 stop11h 30m
British Airways
Thu 10/224:50 pm
FAO
- BOS
1 stop32h 15m
British Airways
Deal found 6/19![British Airways logo]()
$826
This Virgin Atlantic deal was found by Cheapflights users on 6/19. 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 8/511:20 pm
BOS
- LIS
Nonstop6h 25m
Virgin Atlantic
Mon 8/1012:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 6/19![Virgin Atlantic logo]()
$987
This Delta deal was found by Cheapflights users on 6/15. 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 10/79:45 pm
BOS
- OPO
1 stop19h 15m
Delta
Tue 10/205:00 am
OPO
- BOS
1 stop16h 36m
Delta
Deal found 6/15![Delta logo]()
$714
This United deal was found by Cheapflights users on 6/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:15 pm
BOS
- FNC
2 stops30h 50m
Multiple Airlines
Wed 8/2610:20 am
FNC
- BOS
1 stop33h 50m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 6/17. 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.
Fri 10/303:34 pm
BOS
- OPO
2 stops15h 01m
Delta
Thu 11/55:00 am
OPO
- BOS
2 stops19h 45m
Delta
Deal found 6/17![Delta logo]()
$719
This United Airlines deal was found by Cheapflights users on 6/19. 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 9/86:00 pm
BOS
- FNC
1 stop9h 05m
United Airlines
Wed 9/169:40 am
FNC
- BOS
2 stops18h 50m
United Airlines
Deal found 6/19![United Airlines logo]()
$819
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/16. 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 9/2110:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Sun 9/275:55 pm
TER
- BOS
1 stop30h 25m
TAP AIR PORTUGAL
Deal found 6/16![TAP AIR PORTUGAL logo]()
$823
This Delta deal was found by Cheapflights users on 6/15. 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 10/65:10 pm
BOS
- OPO
1 stop17h 15m
Delta
Tue 10/206:15 am
OPO
- BOS
2 stops16h 10m
Delta
Deal found 6/15![Delta logo]()
$725
This Gotogate deal was found by Cheapflights users on 6/16. 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.
Sat 9/199:15 pm
BOS
- PIX
2 stops17h 20m
Multiple Airlines
Fri 9/258:20 am
PIX
- BOS
2 stops15h 30m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$805
This KLM deal was found by Cheapflights users on 6/15. 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 10/911:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Sun 10/185:00 am
LIS
- BOS
1 stop13h 15m
KLM
Deal found 6/15![KLM logo]()
$896
This oojo deal was found by Cheapflights users on 6/18. 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 8/510:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Wed 8/192:10 pm
TER
- BOS
1 stop28h 35m
TAP AIR PORTUGAL
Deal found 6/18![TAP AIR PORTUGAL logo]()
$858
This KLM deal was found by Cheapflights users on 6/19. 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 10/24:45 pm
BOS
- FAO
1 stop11h 45m
KLM
Sat 10/109:55 pm
FAO
- BOS
1 stop20h 20m
KLM
Deal found 6/19![KLM logo]()
$904
This United Airlines deal was found by Cheapflights users on 6/18. 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 7/28:27 pm
BOS
- LIS
1 stop30h 53m
United Airlines
Tue 7/711:25 am
LIS
- BOS
1 stop27h 20m
United Airlines
Deal found 6/18![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 6/15. 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 10/79:45 pm
BOS
- OPO
1 stop19h 15m
Delta
Mon 10/1912:15 pm
OPO
- BOS
1 stop15h 11m
Delta
Deal found 6/15![Delta logo]()
$770
This Gotogate deal was found by Cheapflights users on 6/19. 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.
Wed 10/287:00 pm
BOS
- TER
1 stop13h 00m
Multiple Airlines
Thu 10/293:10 pm
TER
- BOS
2 stops32h 50m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$863
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/19. 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.
Sun 10/411:00 pm
BOS
- OPO
Nonstop6h 30m
TAP AIR PORTUGAL
Sun 10/186:00 pm
OPO
- BOS
Nonstop7h 20m
TAP AIR PORTUGAL
Deal found 6/19![TAP AIR PORTUGAL logo]()
$873
This KLM deal was found by Cheapflights users on 6/19. 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 10/116:55 pm
BOS
- FAO
1 stop33h 15m
KLM
Sat 10/319:25 am
FAO
- BOS
2 stops18h 09m
KLM
Deal found 6/19![KLM logo]()
$914
This United deal was found by Cheapflights users on 6/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:27 pm
BOS
- FAO
1 stop32h 28m
Multiple Airlines
Wed 8/197:05 pm
FAO
- BOS
1 stop25h 05m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$880
This Delta deal was found by Cheapflights users on 6/16. 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 9/267:35 pm
BOS
- OPO
2 stops14h 50m
Delta
Sat 1/235:00 am
OPO
- BOS
2 stops18h 27m
Delta
Deal found 6/16![Delta logo]()
$809
This United Airlines deal was found by Cheapflights users on 6/19. 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 8/165:45 am
BOS
- PDL
2 stops22h 55m
United Airlines
Sun 8/239:35 am
PDL
- BOS
2 stops19h 36m
United Airlines
Deal found 6/19![United Airlines logo]()
$980
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/19. 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 8/226:05 pm
BOS
- PDL
1 stop11h 40m
TAP AIR PORTUGAL
Fri 9/46:30 am
PDL
- BOS
2 stops21h 29m
TAP AIR PORTUGAL
Deal found 6/19![TAP AIR PORTUGAL logo]()
$891
This KLM deal was found by Cheapflights users on 6/16. 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.
Thu 10/224:45 pm
BOS
- FAO
1 stop33h 20m
KLM
Wed 10/282:40 pm
FAO
- BOS
1 stop27h 45m
KLM
Deal found 6/16![KLM logo]()
$954
This FlightHub deal was found by Cheapflights users on 6/16. 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.
Fri 9/1811:45 am
BOS
- HOR
1 stop16h 40m
Multiple Airlines
Wed 9/308:50 am
HOR
- BOS
2 stops15h 00m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$883
This Delta deal was found by Cheapflights users on 6/15. 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 8/201:34 pm
BOS
- OPO
1 stop15h 56m
Delta
Sat 9/512:55 pm
OPO
- BOS
1 stop11h 21m
Delta
Deal found 6/15![Delta logo]()
$815
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated June 20, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/15. 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 7/68:25 pm
BOS
- OPO
1 stop20h 50m
Delta
Fri 11/135:00 am
OPO
- BOS
1 stop13h 25m
Delta
Deal found 6/15![Delta logo]()
$696
This Delta deal was found by Cheapflights users on 6/15. 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 7/68:25 pm
BOS
- OPO
1 stop20h 50m
Delta
Mon 11/911:30 am
OPO
- BOS
1 stop33h 50m
Delta
Deal found 6/15![Delta logo]()
$709
This Air France deal was found by Cheapflights users on 6/17. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:25 pm
BOS
- OPO
1 stop14h 05m
Multiple Airlines
Fri 9/412:45 pm
OPO
- BOS
1 stop14h 58m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$722
This FlightHub deal was found by Cheapflights users on 6/15. 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.
Wed 7/88:05 pm
BOS
- OPO
1 stop33h 20m
British Airways
Wed 11/118:20 am
OPO
- BOS
1 stop16h 40m
British Airways
Deal found 6/15![British Airways logo]()
$712
This FlightHub deal was found by Cheapflights users on 6/15. 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.
Wed 7/88:05 pm
BOS
- OPO
1 stop33h 20m
British Airways
Mon 11/98:40 pm
OPO
- BOS
1 stop28h 20m
British Airways
Deal found 6/15![British Airways logo]()
$723
This Iberia deal was found by Cheapflights users on 6/15. 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.
Thu 7/99:20 pm
BOS
- OPO
1 stop9h 25m
Multiple Airlines
Tue 11/108:20 am
OPO
- BOS
1 stop16h 40m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$728
This Priceline deal was found by Cheapflights users on 6/15. 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.
Thu 7/912:25 pm
BOS
- OPO
2 stops14h 15m
Iberia
Tue 11/108:20 am
OPO
- BOS
1 stop16h 40m
Iberia
Deal found 6/15![Iberia logo]()
$732
This Delta deal was found by Cheapflights users on 6/15. 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 7/1211:59 am
BOS
- OPO
1 stop17h 26m
Delta
Sat 11/711:00 am
OPO
- BOS
1 stop12h 27m
Delta
Deal found 6/15![Delta logo]()
$715
This LEVEL deal was found by Cheapflights users on 6/19. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:35 pm
BOS
- OPO
1 stop16h 45m
LEVEL
Wed 7/1510:00 pm
OPO
- BOS
1 stop28h 45m
LEVEL
Deal found 6/19![LEVEL logo]()
$719
This Delta deal was found by Cheapflights users on 6/15. 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 7/129:00 am
BOS
- OPO
1 stop20h 25m
Delta
Sun 11/85:00 am
OPO
- BOS
1 stop13h 25m
Delta
Deal found 6/15![Delta logo]()
$720
This Delta deal was found by Cheapflights users on 6/16. 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 7/215:10 pm
BOS
- OPO
1 stop10h 20m
Delta
Wed 8/195:00 am
OPO
- BOS
2 stops16h 13m
Delta
Deal found 6/16![Delta logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/2611:00 pm
BOS
- FNC
2 stops21h 15m
Multiple Airlines
Fri 9/410:45 pm
FNC
- BOS
1 stop26h 35m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$805
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 20, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This LEVEL deal was found by Cheapflights users on 6/20. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1811:35 pm
BOS
- OPO
1 stop27h 25m
LEVEL
Deal found 6/20![LEVEL logo]()
$250
This oojo deal was found by Cheapflights users on 6/19. 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
- PDL
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 6/19![TAP AIR PORTUGAL logo]()
$252
This oojo deal was found by Cheapflights users on 6/15. 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 8/186:05 pm
BOS
- PDL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 6/15![TAP AIR PORTUGAL logo]()
$255
This oojo deal was found by Cheapflights users on 6/17. 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 8/2510:45 pm
BOS
- PDL
1 stop10h 30m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$257
This Booking.com deal was found by Cheapflights users on 6/15. 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 8/2310:40 pm
BOS
- PDL
1 stop31h 05m
TAP AIR PORTUGAL
Deal found 6/15![TAP AIR PORTUGAL logo]()
$260
This FlightHub deal was found by Cheapflights users on 6/17. 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 8/3110:45 pm
BOS
- PDL
1 stop31h 00m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$268
This oojo deal was found by Cheapflights users on 6/19. 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 6/19![TAP AIR PORTUGAL logo]()
$272
This oojo deal was found by Cheapflights users on 6/17. 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 8/236:05 pm
BOS
- TER
1 stop14h 45m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 stop31h 05m
TAP AIR PORTUGAL
Deal found 6/16![TAP AIR PORTUGAL logo]()
$280
This Trip.com deal was found by Cheapflights users on 6/19. 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 9/138:50 pm
BOS
- FAO
2 stops21h 10m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$281
This Iberia deal was found by Cheapflights users on 6/19. 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 10/1811:35 pm
BOS
- OPO
1 stop11h 35m
Iberia
Deal found 6/19![Iberia logo]()
$292
This FlightHub deal was found by Cheapflights users on 6/17. 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 8/1610:40 pm
BOS
- TER
1 stop32h 20m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$292
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 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $476 (LEVEL) |
One-way from | $250 (LEVEL) |
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 20, 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
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 10/11
11:35 pm-9:45 am
1 stop29h 10m
Faro
Sun 10/18
12:05 pm-9:45 pm
1 stop14h 40m
$476
BostonHorta
BOS - HOR
BOSHOR
Boston Logan Intl
Sat 9/19
9:15 pm-1:15 pm
1 stop12h 00m
Horta
Tue 9/29
8:50 am-7:50 pm
1 stop15h 00m
$694
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 7/6
8:25 pm-10:15 pm
1 stop20h 50m
Porto
Fri 11/13
5:00 am-1:25 pm
1 stop13h 25m
$696
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Wed 10/7
9:45 pm-10:00 pm
1 stop19h 15m
Porto
Tue 10/20
5:00 am-4:36 pm
1 stop16h 36m
$714
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Fri 10/30
3:34 pm-10:35 am
2 stops15h 01m
Porto
Thu 11/5
5:00 am-7:45 pm
2 stops19h 45m
$719
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Tue 10/6
5:10 pm-3:25 pm
1 stop17h 15m
Porto
Tue 10/20
6:15 am-5:25 pm
2 stops16h 10m
$725
BostonFunchal
BOS - FNC
BOSFNC
Boston Logan Intl
Mon 8/10
8:15 pm-8:05 am
2 stops30h 50m
Funchal Madeira
Wed 8/26
10:20 am-3:10 pm
1 stop33h 50m
$744
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Wed 10/7
9:45 pm-10:00 pm
1 stop19h 15m
Porto
Mon 10/19
12:15 pm-10:26 pm
1 stop15h 11m
$770
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 10/18
6:50 pm-6:50 am
1 stop31h 00m
Porto
Thu 10/22
11:50 am-9:44 am
2 stops26h 54m
$801
BostonPico Island
BOS - PIX
BOSPIX
Boston Logan Intl
Sat 9/19
9:15 pm-6:35 pm
2 stops17h 20m
Pico Island
Fri 9/25
8:20 am-7:50 pm
2 stops15h 30m
$805
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-FNC
BOS-FAO
BOS-HOR
BOS-TER
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-FNC
BOS-FAO
BOS-HOR
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
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Maine and Portugal flights
Browse other Maine and Portugal flight options. Last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Portugal
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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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$679 | FlexibilityNo cancel fee | On-time69% |