$704+ Cheap flights from Maine to Portugal
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Oct 31 — Nov 71
Round-trip
1 adult, Economy
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Find cheap flights from Maine to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Maine to Portugal
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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 October 1, 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 October 1, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:00 am -
2 stops42h 05m
Wed 11/185:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$704
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop12h 50m
Wed 11/186:00 am -
2 stops20h 51m
Deal found 9/26![United Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop11h 30m
Wed 11/185:00 am -
2 stops19h 02m
Deal found 9/27![United Airlines logo]()
$713
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 12/69:12 am -
1 stop19h 18m
Mon 12/1412:30 pm -
2 stops37h 12m
Deal found 9/28![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/128:49 am -
1 stop18h 21m
Thu 11/1910:55 am -
2 stops39h 57m
Deal found 9/28![United Airlines logo]()
$761
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:50 am -
1 stop21h 20m
Sun 11/225:00 am -
2 stops19h 02m
Deal found 10/1![United Airlines logo]()
$763
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:00 am -
1 stop16h 10m
Sun 11/225:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$769
This KLM deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/124:03 pm -
1 stop10h 57m
Thu 11/1910:00 am -
1 stop19h 19m
Deal found 9/28![KLM logo]()
$776
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:49 am -
1 stop18h 21m
Sat 11/215:00 am -
2 stops19h 02m
Deal found 9/30![United Airlines logo]()
$813
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/73:20 pm -
1 stop13h 10m
Fri 12/116:00 am -
2 stops20h 29m
Deal found 9/29![United Airlines logo]()
$1,080
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/163:41 pm -
1 stop11h 29m
Fri 11/205:00 am -
2 stops23h 21m
Deal found 9/29![United Airlines logo]()
$1,087
This Air France deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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.
Fri 10/24:15 pm -
2 stops17h 40m
Sun 10/46:50 pm -
2 stops25h 44m
Deal found 9/28![Air France logo]()
$1,115
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 October 1, 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 October 1, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:00 am -
2 stops42h 05m
Wed 11/185:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$704
This KLM deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/124:03 pm -
1 stop10h 57m
Thu 11/1910:00 am -
1 stop19h 19m
Deal found 9/28![KLM logo]()
$776
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/203:19 pm -
1 stop11h 41m
Sun 12/275:00 am -
2 stops38h 39m
Deal found 9/27![Delta logo]()
$1,283
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop12h 50m
Wed 11/186:00 am -
2 stops20h 51m
Deal found 9/26![United Airlines logo]()
$706
This KLM deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 1/172:35 pm -
1 stop12h 25m
Sun 1/2410:00 am -
1 stop18h 49m
Deal found 9/27![KLM logo]()
$781
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop11h 30m
Wed 11/1811:55 am -
1 stop12h 07m
Deal found 9/27![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 12/69:12 am -
1 stop19h 18m
Mon 12/1412:30 pm -
2 stops37h 12m
Deal found 9/28![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/128:49 am -
1 stop18h 21m
Thu 11/1910:55 am -
2 stops39h 57m
Deal found 9/28![United Airlines logo]()
$761
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:50 am -
1 stop21h 20m
Sun 11/225:00 am -
2 stops19h 02m
Deal found 10/1![United Airlines logo]()
$763
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:00 am -
1 stop16h 10m
Sun 11/225:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$769
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 10/252:38 pm -
2 stops16h 47m
Fri 10/3012:25 pm -
2 stops31h 05m
Deal found 9/28![Delta logo]()
$1,368
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/205:06 pm -
1 stop11h 04m
Sat 3/275:00 am -
2 stops21h 57m
Deal found 9/30![United Airlines logo]()
$912
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/73:20 pm -
1 stop13h 10m
Fri 12/116:00 am -
2 stops20h 29m
Deal found 9/29![United Airlines logo]()
$1,080
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:41 pm -
1 stop11h 29m
Fri 11/205:00 am -
2 stops23h 21m
Deal found 9/30![United Airlines logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/2511:00 am -
1 stop17h 10m
Fri 10/305:00 am -
2 stops33h 13m
Deal found 9/27![United Airlines logo]()
$1,357
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated October 1, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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.
Fri 10/24:15 pm -
2 stops17h 40m
Sun 10/46:50 pm -
2 stops25h 44m
Deal found 9/28![Air France logo]()
$1,115
This KAYAK deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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.
Fri 10/29:25 am -
2 stops17h 55m
Sun 10/410:25 am -
1 stop29h 50m
Deal found 9/28![Multiple Airlines logo]()
$1,190
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/252:38 pm -
2 stops16h 47m
Fri 10/3012:25 pm -
2 stops31h 05m
Deal found 9/27![Delta logo]()
$1,156
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:00 am -
2 stops42h 05m
Wed 11/185:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$704
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop12h 50m
Wed 11/186:00 am -
2 stops20h 51m
Deal found 9/26![United Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/113:40 pm -
1 stop11h 30m
Wed 11/185:00 am -
2 stops19h 02m
Deal found 9/27![United Airlines logo]()
$713
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/128:49 am -
1 stop18h 21m
Thu 11/1910:55 am -
2 stops39h 57m
Deal found 9/28![United Airlines logo]()
$761
This KLM deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/124:03 pm -
1 stop10h 57m
Thu 11/1910:00 am -
1 stop19h 19m
Deal found 9/28![KLM logo]()
$776
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:49 am -
1 stop18h 21m
Sat 11/215:00 am -
2 stops19h 02m
Deal found 9/30![United Airlines logo]()
$813
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:50 am -
1 stop21h 20m
Sun 11/225:00 am -
2 stops19h 02m
Deal found 10/1![United Airlines logo]()
$763
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:00 am -
1 stop16h 10m
Sun 11/225:00 am -
2 stops34h 19m
Deal found 10/1![United Airlines logo]()
$769
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/163:41 pm -
1 stop11h 29m
Fri 11/205:00 am -
2 stops23h 21m
Deal found 9/29![United Airlines logo]()
$1,087
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 October 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $704 (United Airlines) |
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 7,457,451 searches. Data last updated October 1, 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
BangorLisbon
BGR Bangor - LIS Lisbon Humberto Delgado
BGRLIS
Bangor
Mon 11/9
11:00 am-10:05 am
2 stops42h 05m
Lisbon Humberto Delgado
Wed 11/18
5:00 am-10:19 am
2 stops34h 19m
$704
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Wed 11/11
3:40 pm-9:30 am
1 stop12h 50m
Porto
Wed 11/18
6:00 am-9:51 pm
2 stops20h 51m
$706
Quickest round-trip
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Wed 11/11
3:40 pm-8:10 am
1 stop11h 30m
Lisbon Humberto Delgado
Wed 11/18
11:55 am-7:02 pm
1 stop12h 07m
$726
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Sun 12/6
9:12 am-9:30 am
1 stop19h 18m
Porto
Mon 12/14
12:30 pm-8:42 pm
2 stops37h 12m
$738
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Thu 11/12
8:49 am-8:10 am
1 stop18h 21m
Lisbon Humberto Delgado
Thu 11/19
10:55 am-9:52 pm
2 stops39h 57m
$761
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sun 11/15
5:50 am-8:10 am
1 stop21h 20m
Lisbon Humberto Delgado
Sun 11/22
5:00 am-7:02 pm
2 stops19h 02m
$763
BangorLisbon
BGR Bangor - LIS Lisbon Humberto Delgado
BGRLIS
Bangor
Sun 11/15
11:00 am-8:10 am
1 stop16h 10m
Lisbon Humberto Delgado
Sun 11/22
5:00 am-10:19 am
2 stops34h 19m
$769
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Thu 11/12
4:03 pm-8:00 am
1 stop10h 57m
Lisbon Humberto Delgado
Thu 11/19
10:00 am-12:19 am
1 stop19h 19m
$776
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sun 1/17
2:35 pm-8:00 am
1 stop12h 25m
Lisbon Humberto Delgado
Sun 1/24
10:00 am-11:49 pm
1 stop18h 49m
$781
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sat 3/20
5:06 pm-8:10 am
1 stop11h 04m
Lisbon Humberto Delgado
Sat 3/27
5:00 am-10:57 pm
2 stops21h 57m
$912
Showing 1-10 of 15 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.
BGR-LIS
PWM-OPO
PWM-LIS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Maine to Portugal
USME-PT0
BGR-LIS
PWM-OPO
PWM-LIS
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Maine to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 October 1, 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 7,457,451 searches. Data last updated October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$679 | FlexibilityNo cancel fee | On-time69% |