$348+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Nov 7 — Nov 141
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
Cheapest
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Last-minute
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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 8, 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 8, 2026.
This Air France deal was found by Cheapflights users on 10/6. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:15 pm -
2 stops17h 55m
Tue 11/105:00 am -
2 stops24h 19m
Deal found 10/6![Multiple Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:31 am -
2 stops17h 34m
Tue 11/1011:05 am -
1 stop16h 42m
Deal found 10/6![American Airlines logo]()
$739
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:47 pm -
2 stops17h 23m
Thu 11/125:00 am -
2 stops23h 31m
Deal found 10/6![Delta logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Thu 11/58:49 am -
1 stop18h 21m
Thu 11/1212:20 pm -
1 stop11h 42m
Deal found 10/6![United Airlines logo]()
$800
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/198:49 am -
2 stops25h 01m
Thu 11/265:00 am -
2 stops19h 02m
Deal found 10/5![United Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/1911:00 am -
2 stops22h 50m
Thu 11/265:00 am -
2 stops34h 13m
Deal found 10/5![United Airlines logo]()
$810
This Air France deal was found by Cheapflights users on 10/8. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:03 pm -
1 stop10h 57m
Sun 11/295:00 am -
2 stops24h 19m
Deal found 10/8![Multiple Airlines logo]()
$969
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/1112:08 pm -
2 stops41h 22m
Tue 10/205:05 am -
2 stops35h 10m
Deal found 10/6![United Airlines logo]()
$1,005
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 11/205:50 am -
1 stop21h 20m
Fri 11/276:00 am -
2 stops22h 59m
Deal found 10/6![United Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/167:35 pm -
1 stop9h 45m
Fri 11/2011:20 am -
2 stops36h 29m
Deal found 10/6![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/7. 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 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 10/7![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/811:00 am -
1 stop17h 30m
Fri 11/136:00 am -
2 stops33h 13m
Deal found 10/8![United Airlines logo]()
$1,085
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 8, 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 8, 2026.
This United deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/168:55 am -
1 stop18h 15m
Tue 3/3011:25 am -
2 stops33h 44m
Deal found 10/5![Multiple Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 10/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/28:55 am -
2 stops20h 10m
Wed 3/1011:20 am -
2 stops39h 07m
Deal found 10/7![United Airlines logo]()
$720
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:10 pm -
2 stops18h 15m
Fri 11/135:00 am -
2 stops39h 05m
Deal found 10/6![Delta logo]()
$1,094
This Air France deal was found by Cheapflights users on 10/8. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:10 pm -
1 stop11h 50m
Fri 10/3012:25 pm -
2 stops31h 05m
Deal found 10/8![Air France logo]()
$1,367
This United Airlines deal was found by Cheapflights users on 10/6. 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 3/711:17 am -
1 stop17h 13m
Wed 3/1712:35 pm -
1 stop14h 22m
Deal found 10/6![United Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Tue 1/197:30 am -
1 stop19h 40m
Mon 1/256:00 am -
2 stops46h 32m
Deal found 10/8![United Airlines logo]()
$731
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 2/168:55 am -
1 stop18h 15m
Tue 3/3010:25 am -
1 stop12h 48m
Deal found 10/5![United Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2010:52 am -
2 stops19h 53m
Mon 1/258:20 am -
3 stops19h 28m
Deal found 10/8![Multiple Airlines logo]()
$1,056
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/198:49 am -
2 stops25h 01m
Thu 11/265:00 am -
2 stops19h 02m
Deal found 10/5![United Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/1911:00 am -
2 stops22h 50m
Thu 11/2610:15 am -
1 stop28h 58m
Deal found 10/5![United Airlines logo]()
$823
This Delta deal was found by Cheapflights users on 10/7. 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 10/254:10 pm -
1 stop11h 50m
Fri 10/305:00 am -
2 stops38h 30m
Deal found 10/7![Delta logo]()
$1,356
This British Airways deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:32 pm -
2 stops18h 23m
Fri 10/307:05 am -
2 stops20h 50m
Deal found 10/4![Multiple Airlines logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 11/205:50 am -
1 stop21h 20m
Fri 11/276:00 am -
2 stops22h 59m
Deal found 10/6![United Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/167:35 pm -
1 stop9h 45m
Fri 11/2011:20 am -
2 stops36h 29m
Deal found 10/6![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/6. 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 12/73:20 pm -
1 stop13h 10m
Fri 12/116:00 am -
2 stops20h 29m
Deal found 10/6![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:00 am -
1 stop17h 30m
Fri 11/136:00 am -
2 stops33h 13m
Deal found 10/7![United Airlines logo]()
$1,085
This United Airlines deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” 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 11/1911:00 am -
2 stops21h 30m
Wed 11/254:10 am -
2 stops35h 03m
Deal found 10/4![United Airlines logo]()
$3,438
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated October 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/1112:08 pm -
2 stops41h 22m
Tue 10/205:05 am -
2 stops35h 10m
Deal found 10/6![United Airlines logo]()
$1,005
This Air France deal was found by Cheapflights users on 10/6. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:15 pm -
2 stops17h 55m
Tue 11/105:00 am -
2 stops24h 19m
Deal found 10/6![Multiple Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:31 am -
2 stops17h 34m
Tue 11/1011:05 am -
1 stop16h 42m
Deal found 10/6![American Airlines logo]()
$739
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:47 pm -
2 stops17h 23m
Thu 11/125:00 am -
2 stops23h 31m
Deal found 10/6![Delta logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Thu 11/58:49 am -
1 stop18h 21m
Thu 11/1212:20 pm -
1 stop11h 42m
Deal found 10/6![United Airlines logo]()
$800
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/811:00 am -
1 stop17h 30m
Fri 11/136:00 am -
2 stops33h 13m
Deal found 10/8![United Airlines logo]()
$1,085
This Delta deal was found by Cheapflights users on 10/8. 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.
Sun 11/84:10 pm -
2 stops18h 15m
Fri 11/135:00 am -
2 stops39h 05m
Deal found 10/8![Delta logo]()
$1,094
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/167:35 pm -
1 stop9h 45m
Fri 11/2011:20 am -
2 stops36h 29m
Deal found 10/6![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/198:49 am -
2 stops25h 01m
Thu 11/265:00 am -
2 stops19h 02m
Deal found 10/5![United Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” 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 11/1911:00 am -
2 stops22h 50m
Thu 11/265:00 am -
2 stops34h 13m
Deal found 10/5![United Airlines logo]()
$810
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 11/205:50 am -
1 stop21h 20m
Fri 11/276:00 am -
2 stops22h 59m
Deal found 10/6![United Airlines logo]()
$1,028
This Air France deal was found by Cheapflights users on 10/8. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:03 pm -
1 stop10h 57m
Sun 11/295:00 am -
2 stops24h 19m
Deal found 10/8![Multiple Airlines logo]()
$969
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 October 8, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Orbitz deal was found by Cheapflights users on 10/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/227:50 pm -
2 stops56h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Air Canada logo]()
$348
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2210:52 am -
1 stop16h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Fri 1/229:48 am -
3 stops30h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$464
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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $711 (United Airlines) |
One-way from | $348 (Orbitz) |
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 8, 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
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Fri 1/22
7:50 pm-9:20 am
2 stops56h 30m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$348
Quickest round-trip
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Fri 1/22
10:52 am-8:50 am
1 stop16h 58m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$379
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Fri 1/22
9:48 am-9:35 pm
3 stops30h 47m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$464
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Tue 2/16
8:55 am-8:10 am
1 stop18h 15m
Lisbon Humberto Delgado
Tue 3/30
11:25 am-4:09 pm
2 stops33h 44m
$712
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Tue 3/2
8:55 am-10:05 am
2 stops20h 10m
Lisbon Humberto Delgado
Wed 3/10
11:20 am-9:27 pm
2 stops39h 07m
$720
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Sun 3/7
11:17 am-9:30 am
1 stop17h 13m
Porto
Wed 3/17
12:35 pm-10:57 pm
1 stop14h 22m
$721
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Tue 1/19
7:30 am-8:10 am
1 stop19h 40m
Lisbon Humberto Delgado
Mon 1/25
6:00 am-11:32 pm
2 stops46h 32m
$731
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Tue 2/16
8:55 am-8:10 am
1 stop18h 15m
Lisbon Humberto Delgado
Tue 3/30
10:25 am-6:13 pm
1 stop12h 48m
$732
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Thu 11/19
8:49 am-2:50 pm
2 stops25h 01m
Lisbon Humberto Delgado
Thu 11/26
5:00 am-7:02 pm
2 stops19h 02m
$805
BangorLisbon
BGR Bangor - LIS Lisbon Humberto Delgado
BGRLIS
Bangor
Thu 11/19
11:00 am-2:50 pm
2 stops22h 50m
Lisbon Humberto Delgado
Thu 11/26
10:15 am-10:13 am
1 stop28h 58m
$823
Showing 1-10 of 20 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.
PWM-LIS
BGR-LIS
BGR-OPO
PWM-OPO
BGR-FNC
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
PWM-LIS
BGR-LIS
BGR-OPO
PWM-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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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 8, 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$679 | FlexibilityNo cancel fee | On-time69% |