$293+ Cheap flights from Maine to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jun 24 — Jul 11
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 May 25, 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 May 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/2011:35 pm
BOS
- FAO
1 stop29h 10m
Multiple Airlines
Thu 10/89:40 am
FAO
- BOS
1 stop16h 25m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/2310:55 pm
BOS
- FAO
1 stop14h 10m
Multiple Airlines
Tue 10/66:45 pm
FAO
- BOS
1 stop31h 20m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/2410:55 pm
BOS
- FAO
1 stop18h 50m
Multiple Airlines
Thu 10/81:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/2310:55 pm
BOS
- FAO
1 stop14h 10m
Multiple Airlines
Thu 10/81:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$504
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/1710:55 pm
BOS
- FAO
1 stop18h 50m
Multiple Airlines
Thu 10/11:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 5/22![Multiple Airlines logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/1610:55 pm
BOS
- FAO
1 stop14h 10m
Multiple Airlines
Thu 10/11:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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
Tue 10/136:45 pm
FAO
- BOS
1 stop31h 20m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 10/810:55 pm
BOS
- FAO
1 stop32h 05m
Multiple Airlines
Thu 10/151:35 pm
FAO
- BOS
1 stop12h 30m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$523
This Iberia deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 9/1311:35 pm
BOS
- FAO
1 stop29h 10m
Iberia
Thu 10/19:40 am
FAO
- BOS
1 stop16h 25m
Iberia
Deal found 5/21![Iberia logo]()
$542
This oojo deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 12/26:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Thu 12/1711:50 am
TER
- BOS
1 stop30h 50m
TAP AIR PORTUGAL
Deal found 5/22![TAP AIR PORTUGAL logo]()
$607
This Scandinavian Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:35 pm
BOS
- FNC
2 stops39h 10m
Scandinavian Airlines
Tue 12/153:00 pm
FNC
- BOS
1 stop29h 40m
Scandinavian Airlines
Deal found 5/24![Scandinavian Airlines logo]()
$614
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 May 25, 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 May 25, 2026.
This LEVEL deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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
- FAO
1 stop29h 10m
LEVEL
Sat 7/256:25 pm
FAO
- BOS
1 stop32h 20m
LEVEL
Deal found 5/22![LEVEL logo]()
$684
This United Airlines deal was found by Cheapflights users on 5/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:35 pm
BOS
- OPO
1 stop10h 25m
United Airlines
Sun 8/2312:15 pm
OPO
- BOS
1 stop10h 52m
United Airlines
Deal found 5/20![United Airlines logo]()
$748
This SWISS deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Wed 8/125:20 pm
BOS
- FAO
1 stop19h 20m
SWISS
Thu 8/206:30 pm
FAO
- BOS
1 stop25h 40m
SWISS
Deal found 5/22![SWISS logo]()
$756
This Mytrip deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 6/85:10 am
BOS
- TER
2 stops25h 50m
Multiple Airlines
Tue 6/161:40 pm
TER
- BOS
2 stops32h 19m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$787
This Air Transat deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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.
Thu 7/98:10 pm
BOS
- OPO
1 stop10h 35m
Air Transat
Wed 7/228:25 am
OPO
- BOS
1 stop17h 30m
Air Transat
Deal found 5/23![Air Transat logo]()
$816
This British Airways deal was found by Cheapflights users on 5/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:30 pm
BOS
- FAO
1 stop11h 30m
British Airways
Fri 6/268:00 pm
FAO
- BOS
1 stop31h 35m
British Airways
Deal found 5/20![British Airways logo]()
$844
This KLM deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 8/1411:20 pm
BOS
- LIS
Nonstop6h 25m
KLM
Mon 8/3112:45 pm
LIS
- BOS
Nonstop7h 30m
KLM
Deal found 5/22![KLM logo]()
$860
This Virgin Atlantic deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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.
Tue 8/1811:20 pm
BOS
- LIS
Nonstop6h 25m
Virgin Atlantic
Tue 8/2512:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 5/24![Virgin Atlantic logo]()
$861
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 7/2511:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Tue 8/1112:45 pm
LIS
- BOS
Nonstop7h 30m
Delta
Deal found 5/22![Delta logo]()
$861
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 7/276:05 pm
BOS
- TER
1 stop12h 55m
TAP AIR PORTUGAL
Wed 8/57:15 am
TER
- BOS
1 stop11h 30m
TAP AIR PORTUGAL
Deal found 5/23![TAP AIR PORTUGAL logo]()
$890
This Scandinavian Airlines deal was found by Cheapflights users on 5/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:40 pm
BOS
- FNC
2 stops18h 10m
Scandinavian Airlines
Sat 8/155:40 pm
FNC
- BOS
2 stops26h 55m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$1,255
This LEVEL deal was found by Cheapflights users on 5/20. 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 6/1411:30 pm
BOS
- FAO
1 stop29h 15m
LEVEL
Sat 6/206:25 pm
FAO
- BOS
1 stop32h 15m
LEVEL
Deal found 5/20![LEVEL logo]()
$706
This United Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am
PWM
- LIS
1 stop21h 10m
United Airlines
Thu 11/51:00 pm
LIS
- PWM
2 stops38h 57m
United Airlines
Deal found 5/24![United Airlines logo]()
$780
This SWISS deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Wed 8/199:40 pm
BOS
- FAO
1 stop15h 00m
SWISS
Fri 8/287:00 pm
FAO
- BOS
1 stop25h 10m
SWISS
Deal found 5/21![SWISS logo]()
$798
This Air Transat deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/86:35 pm
BOS
- OPO
1 stop12h 10m
Air Transat
Fri 6/128:25 am
OPO
- BOS
1 stop17h 30m
Air Transat
Deal found 5/22![Air Transat logo]()
$817
This Mytrip deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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 6/910:05 am
BOS
- TER
2 stops31h 55m
Multiple Airlines
Tue 6/167:25 am
TER
- BOS
3 stops18h 02m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 8/102:31 pm
BOS
- FAO
1 stop13h 39m
United Airlines
Thu 8/203:25 pm
FAO
- BOS
2 stops28h 45m
United Airlines
Deal found 5/22![United Airlines logo]()
$782
This KLM deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/1411:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Tue 7/2112:45 pm
LIS
- BOS
Nonstop7h 25m
KLM
Deal found 5/21![KLM logo]()
$862
This Delta deal was found by Cheapflights users on 5/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:10 pm
BOS
- LIS
1 stop11h 05m
Delta
Thu 8/612:45 pm
LIS
- BOS
Nonstop7h 30m
Delta
Deal found 5/20![Delta logo]()
$881
This Virgin Atlantic deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Thu 6/411:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Sun 6/712:45 pm
LIS
- BOS
Nonstop7h 29m
Virgin Atlantic
Deal found 5/21![Virgin Atlantic logo]()
$886
This Air Transat deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Thu 7/910:05 am
BOS
- OPO
1 stop20h 40m
Air Transat
Thu 7/161:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 5/21![Air Transat logo]()
$822
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/2311:00 pm
BOS
- TER
1 stop14h 05m
TAP AIR PORTUGAL
Wed 9/27:15 am
TER
- BOS
2 stops27h 54m
TAP AIR PORTUGAL
Deal found 5/25![TAP AIR PORTUGAL logo]()
$912
This SWISS deal was found by Cheapflights users on 5/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:20 pm
BOS
- FAO
1 stop19h 55m
SWISS
Tue 8/186:25 pm
FAO
- BOS
2 stops54h 30m
SWISS
Deal found 5/20![SWISS logo]()
$858
This Gotogate deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/179:15 pm
BOS
- HOR
1 stop16h 50m
Multiple Airlines
Fri 10/305:15 pm
HOR
- BOS
2 stops30h 45m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$867
This KLM deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 7/911:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Mon 7/1312:45 pm
LIS
- BOS
Nonstop7h 25m
KLM
Deal found 5/24![KLM logo]()
$886
This Virgin Atlantic deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Mon 8/109:05 am
BOS
- LIS
1 stop17h 55m
Virgin Atlantic
Mon 8/2412:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 5/22![Virgin Atlantic logo]()
$890
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/262:53 pm
PWM
- LIS
2 stops19h 02m
Delta
Tue 9/155:00 am
LIS
- PWM
2 stops23h 59m
Delta
Deal found 5/21![Delta logo]()
$916
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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
Thu 7/2311:50 am
OPO
- BOS
1 stop27h 00m
United Airlines
Deal found 5/23![United Airlines logo]()
$848
This KLM deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 7/109:45 pm
BOS
- LIS
1 stop12h 10m
Multiple Airlines
Fri 7/1712:45 pm
LIS
- BOS
Nonstop7h 25m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$881
This KLM deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 7/2111:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Sun 7/2612:45 pm
LIS
- BOS
Nonstop7h 25m
KLM
Deal found 5/24![KLM logo]()
$886
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated May 25, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated May 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 5/309:15 pm
BOS
- FNC
1 stop10h 20m
Multiple Airlines
Fri 6/127:00 am
FNC
- BOS
2 stops37h 06m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$741
This KAYAK deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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.
Mon 6/89:15 pm
BOS
- TER
Nonstop5h 05m
Multiple Airlines
Tue 6/161:00 pm
TER
- BOS
1 stop23h 30m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$639
This Cheapflightsfares deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/89:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Tue 6/166:05 pm
TER
- BOS
Nonstop5h 45m
Azores Airlines
Deal found 5/25![Azores Airlines logo]()
$707
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 6/89:20 pm
BOS
- OPO
1 stop28h 25m
Multiple Airlines
Wed 9/910:00 pm
OPO
- BOS
1 stop28h 05m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$740
This LEVEL deal was found by Cheapflights users on 5/20. 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 6/1411:30 pm
BOS
- FAO
1 stop29h 15m
LEVEL
Sat 6/206:25 pm
FAO
- BOS
1 stop32h 15m
LEVEL
Deal found 5/20![LEVEL logo]()
$706
This Mytrip deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 6/155:50 am
BOS
- OPO
3 stops35h 10m
Multiple Airlines
Mon 6/229:25 pm
OPO
- BOS
3 stops26h 40m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$756
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/1611:15 am
BOS
- OPO
3 stops30h 45m
Multiple Airlines
Sun 11/155:50 pm
OPO
- BOS
Nonstop7h 55m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$759
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/177:10 am
BOS
- OPO
2 stops33h 10m
Multiple Airlines
Tue 11/172:10 pm
OPO
- BOS
1 stop10h 50m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$733
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/177:10 am
BOS
- OPO
2 stops33h 10m
Multiple Airlines
Thu 11/1912:40 pm
OPO
- BOS
1 stop12h 20m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$743
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/177:10 am
BOS
- OPO
2 stops33h 10m
Multiple Airlines
Mon 11/1612:40 pm
OPO
- BOS
1 stop12h 20m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$749
This Iberia deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:50 pm
BOS
- OPO
1 stop10h 25m
Iberia
Wed 7/152:05 pm
OPO
- BOS
1 stop12h 00m
Iberia
Deal found 5/24![Iberia logo]()
$702
This Iberia deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:50 pm
BOS
- OPO
1 stop10h 25m
Iberia
Wed 7/292:05 pm
OPO
- BOS
1 stop12h 00m
Iberia
Deal found 5/24![Iberia logo]()
$744
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 May 25, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
This Booking.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:45 pm
BOS
- PDL
1 stop10h 30m
TAP AIR PORTUGAL
Deal found 5/21![TAP AIR PORTUGAL logo]()
$293
This Booking.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 stop12h 20m
TAP AIR PORTUGAL
Deal found 5/21![TAP AIR PORTUGAL logo]()
$295
This oojo deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 10/1510:20 pm
BOS
- TER
1 stop10h 35m
TAP AIR PORTUGAL
Deal found 5/24![TAP AIR PORTUGAL logo]()
$297
This Trip.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 7/87:10 am
BOS
- PDL
1 stop21h 00m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$299
This Trip.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” 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.
Fri 8/710:05 am
BOS
- PDL
1 stop19h 30m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/57:10 am
BOS
- PDL
1 stop21h 00m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/1410:05 am
BOS
- FAO
2 stops46h 30m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/910:05 am
BOS
- PDL
1 stop18h 05m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$325
This Cheapflightsfares deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 5/24![Azores Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/118:10 pm
BOS
- PDL
1 stop32h 00m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:50 pm
BOS
- FAO
3 stops45h 15m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$326
This Booking.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:40 pm
BOS
- PDL
1 stop31h 05m
TAP AIR PORTUGAL
Deal found 5/22![TAP AIR PORTUGAL logo]()
$330
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 May 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $490 (Kiwi.com) |
One-way from | $293 (Booking.com) |
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 May 25, 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 7/12
11:35 pm-9:45 am
1 stop29h 10m
Faro
Sat 7/25
6:25 pm-9:45 pm
1 stop32h 20m
$684
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 6/14
11:30 pm-9:45 am
1 stop29h 15m
Faro
Sat 6/20
6:25 pm-9:40 pm
1 stop32h 15m
$706
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Wed 8/19
3:35 pm-7:00 am
1 stop10h 25m
Porto
Sun 8/23
12:15 pm-6:07 pm
1 stop10h 52m
$748
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Wed 8/12
5:20 pm-5:40 pm
1 stop19h 20m
Faro
Thu 8/20
6:30 pm-3:10 pm
1 stop25h 40m
$756
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Sun 11/1
6:00 am-8:10 am
1 stop21h 10m
Lisbon Humberto Delgado
Thu 11/5
1:00 pm-10:57 pm
2 stops38h 57m
$780
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Mon 8/10
2:31 pm-9:10 am
1 stop13h 39m
Faro
Thu 8/20
3:25 pm-3:10 pm
2 stops28h 45m
$782
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Mon 6/8
5:10 am-11:00 am
2 stops25h 50m
Lajes
Tue 6/16
1:40 pm-5:59 pm
2 stops32h 19m
$787
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Wed 8/19
9:40 pm-5:40 pm
1 stop15h 00m
Faro
Fri 8/28
7:00 pm-3:10 pm
1 stop25h 10m
$798
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Thu 7/9
8:10 pm-11:45 am
1 stop10h 35m
Porto
Wed 7/22
8:25 am-8:55 pm
1 stop17h 30m
$816
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 6/8
6:35 pm-11:45 am
1 stop12h 10m
Porto
Fri 6/12
8:25 am-8:55 pm
1 stop17h 30m
$817
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Maine to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Maine with our price prediction graph.
BOS-TER
BOS-OPO
BOS-FAO
BOS-FNC
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-TER
BOS-OPO
BOS-FAO
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 May 25, 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 May 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$721 | FlexibilityNo cancel fee | On-time69% |