$460+ Cheap flights from Portland, ME (PWM) to Lisbon (LIS)
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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jul 6 — Jul 131
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Lisbon 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 Portland to Lisbon
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to LisbonExplore the most affordable flight options available from Portland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 6, 2026.
Explore the most affordable flight options available from Portland to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 6, 2026.
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Mon 12/73:15 pm
PWM
- LIS
1 stop11h 55m
United Airlines
Thu 12/101:00 pm
LIS
- PWM
2 stops38h 57m
United Airlines
Deal found 6/5![United Airlines logo]()
$774
This Air Canada deal was found by Cheapflights users on 6/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
PWM
- LIS
2 stops22h 50m
Air Canada
Thu 12/101:00 pm
LIS
- PWM
2 stops38h 57m
Air Canada
Deal found 6/5![Air Canada logo]()
$778
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 stops37h 27m
United Airlines
Deal found 6/2![United Airlines logo]()
$780
This Delta deal was found by Cheapflights users on 6/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:35 pm
PWM
- LIS
1 stop12h 25m
Delta
Sat 11/145:00 am
LIS
- PWM
2 stops23h 49m
Delta
Deal found 6/1![Delta logo]()
$827
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:32 am
PWM
- LIS
1 stop20h 33m
American Airlines
Mon 11/236:30 am
LIS
- PWM
2 stops21h 17m
American Airlines
Deal found 6/5![American Airlines logo]()
$836
This Air France deal was found by Cheapflights users on 6/5. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:45 pm
PWM
- LIS
2 stops17h 10m
Multiple Airlines
Mon 11/235:00 am
LIS
- PWM
2 stops23h 49m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$837
Best flights from Portland to LisbonDiscover carefully curated flight deals from Portland to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 6, 2026.
Discover carefully curated flight deals from Portland to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 6, 2026.
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 stops37h 27m
United Airlines
Deal found 6/2![United Airlines logo]()
$780
This Delta deal was found by Cheapflights users on 6/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:35 pm
PWM
- LIS
1 stop12h 25m
Delta
Sat 11/145:00 am
LIS
- PWM
2 stops23h 49m
Delta
Deal found 6/1![Delta logo]()
$827
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:32 am
PWM
- LIS
1 stop20h 33m
American Airlines
Mon 11/236:30 am
LIS
- PWM
2 stops21h 17m
American Airlines
Deal found 6/5![American Airlines logo]()
$836
This Air France deal was found by Cheapflights users on 6/5. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:45 pm
PWM
- LIS
2 stops17h 10m
Multiple Airlines
Mon 11/235:00 am
LIS
- PWM
2 stops23h 49m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$837
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/149:55 am
PWM
- LIS
1 stop19h 35m
United Airlines
Mon 7/207:25 am
LIS
- PWM
2 stops45h 05m
United Airlines
Deal found 6/3![United Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 6/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:59 pm
PWM
- LIS
2 stops18h 56m
Delta
Thu 7/2311:55 am
LIS
- PWM
2 stops18h 04m
Delta
Deal found 6/1![Delta logo]()
$1,000
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Thu 7/169:55 am
PWM
- LIS
1 stop19h 35m
United Airlines
Thu 7/237:25 am
LIS
- PWM
2 stops31h 42m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,002
Last-minute flights from Portland to LisbonDiscover last-minute flight deals from Portland to Lisbon. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Lisbon. Data last updated June 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/12:59 pm
PWM
- LIS
2 stops18h 56m
Delta
Tue 7/75:00 am
LIS
- PWM
2 stops24h 59m
Delta
Deal found 6/2![Delta logo]()
$1,078
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:45 pm
PWM
- LIS
2 stops17h 10m
Delta
Thu 7/95:00 am
LIS
- PWM
2 stops23h 14m
Delta
Deal found 6/4![Delta logo]()
$1,059
This Air France deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/142:59 pm
PWM
- LIS
2 stops15h 16m
Air France
Mon 7/206:50 pm
LIS
- PWM
2 stops26h 11m
Air France
Deal found 6/3![Air France logo]()
$946
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/149:55 am
PWM
- LIS
1 stop19h 35m
United Airlines
Mon 7/207:25 am
LIS
- PWM
2 stops45h 05m
United Airlines
Deal found 6/3![United Airlines logo]()
$957
This KAYAK deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/142:20 pm
PWM
- LIS
1 stop15h 10m
Lufthansa
Mon 7/2010:25 am
LIS
- PWM
1 stop18h 05m
Lufthansa
Deal found 6/3![Lufthansa logo]()
$1,015
This Delta deal was found by Cheapflights users on 6/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:59 pm
PWM
- LIS
2 stops18h 56m
Delta
Thu 7/2311:55 am
LIS
- PWM
2 stops18h 04m
Delta
Deal found 6/1![Delta logo]()
$1,000
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Thu 7/169:55 am
PWM
- LIS
1 stop19h 35m
United Airlines
Thu 7/237:25 am
LIS
- PWM
2 stops31h 42m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,002
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Sun 7/195:15 am
PWM
- LIS
2 stops22h 05m
United Airlines
Sun 7/266:15 am
LIS
- PWM
2 stops22h 36m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,010
This KLM deal was found by Cheapflights users on 6/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:00 am
PWM
- LIS
1 stop21h 00m
KLM
Sun 7/265:00 am
LIS
- PWM
2 stops24h 59m
KLM
Deal found 6/4![KLM logo]()
$1,011
One-way flights from Portland to LisbonSearch for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
Search for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:59 pm
PWM
- LIS
2 stops17h 56m
American Airlines
Deal found 6/4![American Airlines logo]()
$460
This KLM deal was found by Cheapflights users on 6/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:59 pm
PWM
- LIS
1 stop12h 01m
KLM
Deal found 6/4![KLM logo]()
$463
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 9/37:40 am
PWM
- LIS
2 stops20h 40m
United Airlines
Deal found 6/2![United Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 9/32:53 pm
PWM
- LIS
2 stops19h 02m
Delta
Deal found 6/3![Delta logo]()
$538
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.
Sat 6/1312:58 pm
PWM
- LIS
2 stops39h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$636
This Cheapflightsfares deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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.
Thu 6/112:30 pm
PWM
- LIS
1 stop14h 45m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$641
This oojo deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 6/1112:40 pm
PWM
- LIS
2 stops28h 55m
WestJet
Deal found 6/2![WestJet logo]()
$671
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 6/1112:42 pm
PWM
- LIS
3 stops50h 43m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$718
Find flight deals from Portland to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $780 (United Airlines) |
One-way from | $460 (American Airlines) |
Popular in | December |
Cheapest in | February |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Lisbon 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 6, 2026.
Use the filters below to find and compare flights from Portland to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
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-9:27 pm
2 stops37h 27m
$780
Quickest round-trip
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Sat 11/7
2:35 pm-8:00 am
1 stop12h 25m
Lisbon Humberto Delgado
Sat 11/14
5:00 am-11:49 pm
2 stops23h 49m
$827
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Tue 9/29
7:32 am-9:05 am
1 stop20h 33m
Lisbon Humberto Delgado
Mon 11/23
6:30 am-10:47 pm
2 stops21h 17m
$836
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Tue 9/29
4:45 pm-2:55 pm
2 stops17h 10m
Lisbon Humberto Delgado
Mon 11/23
5:00 am-11:49 pm
2 stops23h 49m
$837
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Tue 7/14
9:55 am-10:30 am
1 stop19h 35m
Lisbon Humberto Delgado
Mon 7/20
7:25 am-11:30 pm
2 stops45h 05m
$957
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Thu 7/16
2:59 pm-2:55 pm
2 stops18h 56m
Lisbon Humberto Delgado
Thu 7/23
11:55 am-12:59 am
2 stops18h 04m
$1,000
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Thu 7/16
9:55 am-10:30 am
1 stop19h 35m
Lisbon Humberto Delgado
Thu 7/23
7:25 am-10:07 am
2 stops31h 42m
$1,002
Cheapest one-way
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Tue 7/21
6:59 pm-5:55 pm
2 stops17h 56m
$460
Quickest one-way
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Tue 7/21
2:59 pm-8:00 am
1 stop12h 01m
$463
PortlandLisbon
PWM - LIS
PWMLIS
Portland
Thu 9/3
5:15 am-9:20 am
2 stops23h 05m
$537
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Portland to Lisbon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Lisbon in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Portland with our price prediction graph.
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.
Reviews of airlines servicing Lisbon
Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated June 6, 2026.
See what other customers who have flown with United Airlines from Portland to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.6
Overall
7.4
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Overall
7.4
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Portland to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Lisbon flight routes
Other flight options
Other flights from Portland
Popular flights
Alternative routes for Portland to Lisbon
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Lisbon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Lisbon by cabin class
Find flights from Portland to Lisbon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Lisbon
Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 6, 2026.
Portland and Lisbon flights
Browse other Portland and Lisbon flight options. Last updated on June 6, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on June 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Portland to Lisbon
Discover the top airline that operate flights from Portland to Lisbon. 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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$707 | FlexibilityNo cancel fee | On-time69% |