$254+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jul 11 — Jul 181
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 11, 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 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/110:55 pm
BOS
- FAO
1 stop32h 05m
Multiple Airlines
Thu 10/151:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/110:55 pm
BOS
- FAO
1 stop32h 05m
Multiple Airlines
Tue 10/136:45 pm
FAO
- BOS
1 stop31h 20m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$445
This Iberia deal was found by Cheapflights users on 6/8. 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
Thu 10/159:40 am
FAO
- BOS
1 stop16h 25m
Iberia
Deal found 6/8![Iberia logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 10/151:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 6/8. 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
Wed 10/146:45 am
FAO
- BOS
2 stops19h 20m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$520
This Iberia deal was found by Cheapflights users on 6/8. 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 6/8![Iberia logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Thu 9/108:50 pm
BOS
- FAO
2 stops17h 35m
Multiple Airlines
Thu 9/249:40 am
FAO
- BOS
1 stop16h 25m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$596
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 pm
BOS
- TER
1 stop25h 15m
TAP AIR PORTUGAL
Sun 11/1511:50 am
TER
- BOS
1 stop12h 05m
TAP AIR PORTUGAL
Deal found 6/9![TAP AIR PORTUGAL logo]()
$617
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:55 am
BOS
- TER
1 stop25h 15m
Multiple Airlines
Tue 9/226:05 pm
TER
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$618
This oojo deal was found by Cheapflights users on 6/8. 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
Tue 9/87:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 6/8![TAP AIR PORTUGAL logo]()
$627
This oojo deal was found by Cheapflights users on 6/7. 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 11/212:35 pm
TER
- BOS
1 stop30h 05m
TAP AIR PORTUGAL
Deal found 6/7![TAP AIR PORTUGAL logo]()
$634
This oojo deal was found by Cheapflights users on 6/7. 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.
Sat 11/76:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Sat 11/1411:50 am
TER
- BOS
1 stop12h 05m
TAP AIR PORTUGAL
Deal found 6/7![TAP AIR PORTUGAL logo]()
$638
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 11, 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 11, 2026.
This oojo deal was found by Cheapflights users on 6/7. 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.
Sat 11/76:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Sat 11/1411:50 am
TER
- BOS
1 stop12h 05m
TAP AIR PORTUGAL
Deal found 6/7![TAP AIR PORTUGAL logo]()
$638
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:35 am
BOS
- TER
1 stop25h 35m
Multiple Airlines
Thu 9/249:35 am
TER
- BOS
1 stop14h 15m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$696
This Delta deal was found by Cheapflights users on 6/8. 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 8/101:34 pm
BOS
- OPO
1 stop15h 56m
Delta
Fri 8/215:00 am
OPO
- BOS
1 stop13h 18m
Delta
Deal found 6/8![Delta logo]()
$700
This SWISS deal was found by Cheapflights users on 6/6. 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 10/159:40 pm
BOS
- OPO
1 stop15h 50m
SWISS
Wed 10/2112:15 pm
OPO
- BOS
1 stop12h 40m
SWISS
Deal found 6/6![SWISS logo]()
$726
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/128:00 am
BOS
- OPO
1 stop20h 45m
United Airlines
Sun 9/2012:15 pm
OPO
- BOS
1 stop26h 35m
United Airlines
Deal found 6/9![United Airlines logo]()
$731
This KLM deal was found by Cheapflights users on 6/10. 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 10/186:55 pm
BOS
- FAO
1 stop33h 15m
KLM
Wed 10/282:40 pm
FAO
- BOS
1 stop27h 45m
KLM
Deal found 6/10![KLM logo]()
$745
This Virgin Atlantic deal was found by Cheapflights users on 6/6. 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 9/3011:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Sat 10/1012:45 pm
LIS
- BOS
Nonstop7h 40m
Virgin Atlantic
Deal found 6/6![Virgin Atlantic logo]()
$866
This Air Transat deal was found by Cheapflights users on 6/8. 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.
Mon 8/38:10 pm
BOS
- OPO
1 stop10h 35m
Air Transat
Fri 8/71:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 6/8![Air Transat logo]()
$1,096
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 8/185:05 pm
BOS
- OPO
1 stop12h 25m
Delta
Thu 8/275:00 am
OPO
- BOS
2 stops19h 15m
Delta
Deal found 6/10![Delta logo]()
$710
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/10. 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.
Wed 11/186:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Sun 11/2211:50 am
TER
- BOS
1 stop12h 05m
TAP AIR PORTUGAL
Deal found 6/10![TAP AIR PORTUGAL logo]()
$721
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:25 pm
BOS
- OPO
2 stops29h 35m
United Airlines
Sun 10/1811:20 am
OPO
- BOS
2 stops34h 26m
United Airlines
Deal found 6/9![United Airlines logo]()
$738
This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:25 pm
BOS
- PIX
1 stop8h 35m
Multiple Airlines
Sat 11/284:50 pm
PIX
- BOS
2 stops31h 10m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$769
This SWISS deal was found by Cheapflights users on 6/6. 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 9/175:20 pm
BOS
- FAO
1 stop19h 55m
SWISS
Mon 9/219:10 am
FAO
- BOS
1 stop35h 00m
SWISS
Deal found 6/6![SWISS logo]()
$799
This KLM deal was found by Cheapflights users on 6/10. 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.
Sat 10/314:40 pm
BOS
- FAO
2 stops17h 10m
KLM
Sun 11/86:50 pm
FAO
- BOS
1 stop23h 35m
KLM
Deal found 6/10![KLM logo]()
$819
This United Airlines deal was found by Cheapflights users on 6/8. 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 9/206:50 pm
BOS
- OPO
1 stop31h 10m
United Airlines
Mon 10/512:35 pm
OPO
- BOS
2 stops26h 57m
United Airlines
Deal found 6/8![United Airlines logo]()
$759
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/2610:05 am
BOS
- FAO
2 stops25h 10m
Multiple Airlines
Sat 9/511:45 am
FAO
- BOS
1 stop12h 05m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$783
This Delta deal was found by Cheapflights users on 6/10. 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.
Sun 10/251:35 pm
PWM
- LIS
2 stops17h 45m
Delta
Fri 10/305:00 am
LIS
- PWM
2 stops22h 49m
Delta
Deal found 6/10![Delta logo]()
$787
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/10. 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.
Fri 10/1610:45 pm
BOS
- OPO
1 stop10h 45m
TAP AIR PORTUGAL
Sun 10/189:00 am
OPO
- BOS
1 stop10h 40m
TAP AIR PORTUGAL
Deal found 6/10![TAP AIR PORTUGAL logo]()
$814
This United Airlines deal was found by Cheapflights users on 6/6. 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 12/75:06 pm
PWM
- LIS
1 stop10h 04m
United Airlines
Thu 12/1010:15 am
LIS
- PWM
1 stop10h 54m
United Airlines
Deal found 6/6![United Airlines logo]()
$790
This KLM deal was found by Cheapflights users on 6/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Fri 9/185:00 am
LIS
- BOS
1 stop16h 35m
KLM
Deal found 6/9![KLM logo]()
$871
This Gotogate deal was found by Cheapflights users on 6/8. 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 9/179:15 pm
BOS
- SJZ
2 stops36h 30m
Multiple Airlines
Sun 9/2712:10 pm
SJZ
- BOS
2 stops35h 40m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$794
This Delta deal was found by Cheapflights users on 6/8. 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 8/3111:20 pm
BOS
- LIS
Nonstop6h 25m
Delta
Mon 9/2110:00 am
LIS
- BOS
1 stop15h 26m
Delta
Deal found 6/8![Delta logo]()
$871
This KLM deal was found by Cheapflights users on 6/10. 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.
Tue 8/411:20 pm
BOS
- LIS
Nonstop6h 25m
KLM
Sun 8/912:45 pm
LIS
- BOS
Nonstop7h 30m
KLM
Deal found 6/10![KLM logo]()
$885
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 12/66:30 pm
BOS
- OPO
1 stop10h 00m
United Airlines
Thu 12/1012:35 pm
OPO
- BOS
2 stops16h 19m
United Airlines
Deal found 6/10![United Airlines logo]()
$805
This Gotogate deal was found by Cheapflights users on 6/10. 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.
Sat 9/199:15 pm
BOS
- FNC
1 stop22h 55m
Multiple Airlines
Thu 9/242:25 pm
FNC
- BOS
1 stop10h 55m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$821
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/8. 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 11/912:30 pm
BOS
- TER
2 stops18h 30m
TAP AIR PORTUGAL
Fri 11/136:40 am
TER
- BOS
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 6/8![TAP AIR PORTUGAL logo]()
$919
This Delta deal was found by Cheapflights users on 6/7. 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 7/1111:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Tue 7/215:35 am
LIS
- BOS
1 stop13h 04m
Delta
Deal found 6/7![Delta logo]()
$872
This KLM deal was found by Cheapflights users on 6/10. 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 7/205:00 pm
BOS
- OPO
1 stop12h 30m
Multiple Airlines
Tue 7/2812:25 pm
OPO
- BOS
1 stop11h 51m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 10/256:00 am
PWM
- LIS
1 stop22h 10m
United Airlines
Fri 10/3011:55 am
LIS
- PWM
2 stops24h 24m
United Airlines
Deal found 6/10![United Airlines logo]()
$866
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 7/87:10 pm
BOS
- LIS
1 stop11h 05m
Delta
Wed 7/1512:45 pm
LIS
- BOS
Nonstop7h 25m
Delta
Deal found 6/9![Delta logo]()
$880
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated June 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Fri 6/1211:45 am
BOS
- FAO
1 stop25h 45m
Multiple Airlines
Thu 6/259:35 am
FAO
- BOS
1 stop17h 30m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$718
This Air Canada deal was found by Cheapflights users on 6/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:45 pm
BOS
- OPO
2 stops35h 05m
Air Canada
Tue 8/2512:15 pm
OPO
- BOS
1 stop14h 12m
Air Canada
Deal found 6/6![Air Canada logo]()
$688
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/56:50 pm
BOS
- OPO
1 stop31h 10m
United Airlines
Wed 8/1911:20 am
OPO
- BOS
2 stops25h 57m
United Airlines
Deal found 6/6![United Airlines logo]()
$698
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:40 pm
BOS
- OPO
2 stops54h 20m
Multiple Airlines
Fri 9/48:40 am
OPO
- BOS
1 stop16h 15m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/66:05 am
BOS
- OPO
2 stops19h 55m
United Airlines
Thu 8/2711:50 am
OPO
- BOS
1 stop14h 37m
United Airlines
Deal found 6/6![United Airlines logo]()
$692
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/65:45 am
BOS
- OPO
1 stop20h 15m
United Airlines
Fri 9/49:00 am
OPO
- BOS
2 stops19h 59m
United Airlines
Deal found 6/8![United Airlines logo]()
$699
This CheapOair deal was found by Cheapflights users on 6/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:35 pm
BOS
- OPO
2 stops54h 25m
Air Canada
Fri 9/46:00 am
OPO
- BOS
2 stops20h 27m
Air Canada
Deal found 6/9![Air Canada logo]()
$704
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/76:50 pm
BOS
- OPO
1 stop31h 10m
United Airlines
Fri 8/289:00 am
OPO
- BOS
1 stop32h 50m
United Airlines
Deal found 6/6![United Airlines logo]()
$694
This Air Canada deal was found by Cheapflights users on 6/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:50 pm
BOS
- OPO
1 stop31h 10m
Air Canada
Thu 8/273:00 am
OPO
- BOS
2 stops35h 53m
Air Canada
Deal found 6/6![Air Canada logo]()
$697
This Air Canada deal was found by Cheapflights users on 6/6. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:40 pm
BOS
- OPO
2 stops30h 10m
Air Canada
Fri 9/46:20 am
OPO
- BOS
2 stops20h 07m
Air Canada
Deal found 6/6![Air Canada logo]()
$696
This Delta deal was found by Cheapflights users on 6/7. 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 7/264:00 pm
BOS
- OPO
1 stop13h 25m
Delta
Tue 8/1811:30 am
OPO
- BOS
1 stop30h 48m
Delta
Deal found 6/7![Delta logo]()
$700
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:30 pm
BOS
- OPO
2 stops13h 30m
Air Canada
Wed 9/2311:20 am
OPO
- BOS
2 stops16h 20m
Air Canada
Deal found 6/9![Air Canada logo]()
$703
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 11, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This oojo deal was found by Cheapflights users on 6/10. 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
- PDL
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 6/10![TAP AIR PORTUGAL logo]()
$254
This oojo deal was found by Cheapflights users on 6/10. 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 8/2510:45 pm
BOS
- PDL
1 stop10h 30m
TAP AIR PORTUGAL
Deal found 6/10![TAP AIR PORTUGAL logo]()
$256
This Booking.com deal was found by Cheapflights users on 6/9. 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 8/910:40 pm
BOS
- PDL
1 stop31h 05m
TAP AIR PORTUGAL
Deal found 6/9![TAP AIR PORTUGAL logo]()
$258
This Booking.com deal was found by Cheapflights users on 6/9. 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 8/236:05 pm
BOS
- PDL
1 stop25h 40m
TAP AIR PORTUGAL
Deal found 6/9![TAP AIR PORTUGAL logo]()
$259
This Mytrip deal was found by Cheapflights users on 6/8. 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 8/2410:45 pm
BOS
- PDL
1 stop15h 50m
TAP AIR PORTUGAL
Deal found 6/8![TAP AIR PORTUGAL logo]()
$260
This Trip.com deal was found by Cheapflights users on 6/6. 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.
Wed 8/1910:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Deal found 6/6![TAP AIR PORTUGAL logo]()
$263
This FlightHub deal was found by Cheapflights users on 6/6. 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 6/6![TAP AIR PORTUGAL logo]()
$268
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:05 am
BOS
- PDL
1 stop19h 00m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$273
This oojo deal was found by Cheapflights users on 6/10. 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.
Fri 10/1610:45 pm
BOS
- PDL
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 6/10![TAP AIR PORTUGAL logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 7/2711:00 pm
BOS
- FAO
2 stops42h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$285
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares 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
Deal found 6/10![TAP AIR PORTUGAL logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/238:50 pm
BOS
- FAO
2 stops17h 20m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$297
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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $436 (Kiwi.com) |
One-way from | $254 (oojo) |
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 11, 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
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Sat 11/7
6:00 pm-11:00 am
1 stop13h 00m
Lajes
Sat 11/14
11:50 am-7:55 pm
1 stop12h 05m
$638
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Tue 9/8
6:35 am-12:10 pm
1 stop25h 35m
Lajes
Thu 9/24
9:35 am-7:50 pm
1 stop14h 15m
$696
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 8/10
1:34 pm-10:30 am
1 stop15h 56m
Porto
Fri 8/21
5:00 am-1:18 pm
1 stop13h 18m
$700
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Tue 8/18
5:05 pm-10:30 am
1 stop12h 25m
Porto
Thu 8/27
5:00 am-7:15 pm
2 stops19h 15m
$710
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Wed 11/18
6:00 pm-11:00 am
1 stop13h 00m
Lajes
Sun 11/22
11:50 am-7:55 pm
1 stop12h 05m
$721
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Thu 10/15
9:40 pm-6:30 pm
1 stop15h 50m
Porto
Wed 10/21
12:15 pm-7:55 pm
1 stop12h 40m
$726
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 7/12
8:00 am-9:45 am
1 stop20h 45m
Porto
Sun 9/20
12:15 pm-9:50 am
1 stop26h 35m
$731
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 10/11
8:25 pm-7:00 am
2 stops29h 35m
Porto
Sun 10/18
11:20 am-4:46 pm
2 stops34h 26m
$738
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 10/18
6:55 pm-9:10 am
1 stop33h 15m
Faro
Wed 10/28
2:40 pm-2:25 pm
1 stop27h 45m
$745
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 9/20
6:50 pm-7:00 am
1 stop31h 10m
Porto
Mon 10/5
12:35 pm-10:32 am
2 stops26h 57m
$759
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-PDL
BOS-FAO
BOS-TER
BOS-OPO
BOS-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-PDL
BOS-FAO
BOS-TER
BOS-OPO
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 11, 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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$679 | FlexibilityNo cancel fee | On-time69% |