What are the cheapest airlines flying from Portland, Maine to Lisbon round-trip?

United Airlines, at $779, was found to be the cheapest airline from Portland, Maine to Lisbon.Alternate airlines to your destination round-trip include Scandinavian Airlines and American Airlines. United Airlines is currently priced 23% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Portland, Maine to Lisbon one-way?

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $366. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Portland, Maine to Lisbon for a low price.

What is the cheapest day to fly from Portland, Maine to Lisbon?

Travelers seeking maximum savings on their Portland, Maine to Lisbon flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Portland, Maine to Lisbon?

Before booking your flight from Portland, Maine to Lisbon check out the most popular airlines for this route: Delta, KLM or United Airlines.

What is the cheapest day to fly round-trip from Portland, Maine to Lisbon?

Wednesday flights are generally found to be more expensive for flights from Portland, Maine to Lisbon. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Lisbon.

What is the cheapest month to fly from Portland, Maine to Lisbon?

November can be a great time to fly to Lisbon from Portland, Maine with a flight ticket averaging about $1,015. Cheapflights users have found deals in the month of November for as cheap as $557. The most expensive prices can be found in the month of June.

Most accurate provider : When it comes to deals on Portland, Maine-Lisbon flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland, Maine-Lisbon flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Can I find deals for flights from Portland to Lisbon that include hotel bookings?

Yes. In addition to deals on Portland to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portland to Lisbon?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Lisbon.

Can I find deals for business class flights from Portland to Lisbon?

Yes. Cheapflights offers flight deals from Portland to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$366+ Flights from Portland, Maine to Lisbon, Portugal

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1. Tell us where you want to go

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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.

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Cheap flight deals from Portland to Lisbon

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Popular in	June
Cheapest in	November
Round-trip from	$779 (United Airlines)
One-way from	$366 (Delta)

Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.

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Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.

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High demand for flights, 39% potential price rise

Search Deals

Best time to find cheap flights, 44% potential price drop

Search Deals

From Portland to Lisbon Humberto Delgado

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One-way flight from Portland to Lisbon Humberto Delgado

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Find flight deals from Portland to Lisbon

Cheapest flights from Portland to Lisbon
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 November 20, 2024.

Sun 12/112:59 pmPWM - LIS

1 stop14h 56mAmerican Airlines

Thu 12/58:20 amLIS - PWM

2 stops19h 26mAmerican Airlines

Deal found 11/19

$1,340

Fri 12/204:05 pmPWM - LIS

2 stops35h 50mMultiple Airlines

Fri 12/2711:00 amLIS - PWM

2 stops17h 59mMultiple Airlines

Deal found 11/20

$1,563

Mon 11/259:30 amPWM - LIS

2 stops19h 45mUnited Airlines

Fri 11/2910:15 amLIS - PWM

2 stops18h 44mUnited Airlines

Deal found 11/20

$1,585

Best flights from Portland to Lisbon
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 November 20, 2024.

Sat 1/45:20 amPWM - LIS

1 stop23h 40mUnited Airlines

Sat 1/115:00 amLIS - PWM

2 stops16h 52mUnited Airlines

Deal found 11/20

$779

Fri 5/162:35 pmPWM - LIS

2 stops20h 15mScandinavian Airlines

Sun 5/257:00 amLIS - PWM

2 stops21h 38mScandinavian Airlines

Deal found 11/20

$952

Fri 5/165:50 pmPWM - LIS

1 stop11h 20mMultiple Airlines

Sun 5/255:05 pmLIS - PWM

1 stop21h 22mMultiple Airlines

Deal found 11/20

$1,327

Sun 12/112:59 pmPWM - LIS

1 stop14h 56mAmerican Airlines

Thu 12/58:20 amLIS - PWM

2 stops19h 26mAmerican Airlines

Deal found 11/19

$1,340

Fri 5/1611:17 amPWM - LIS

3 stops17h 03mAir Canada

Sun 5/257:55 amLIS - PWM

3 stops20h 22mAir Canada

Deal found 11/20

$1,759

Last-minute flights from Portland to Lisbon
Discover last-minute flight deals from Portland to Lisbon. Data last updated November 20, 2024 and is based on user searches.

Mon 11/251:31 pmPWM - LIS

2 stops14h 49mMultiple Airlines

Fri 11/295:00 amLIS - PWM

3 stops22h 50mMultiple Airlines

Deal found 11/20

$1,583

Mon 11/259:30 amPWM - LIS

2 stops19h 45mUnited Airlines

Fri 11/2910:15 amLIS - PWM

2 stops18h 44mUnited Airlines

Deal found 11/20

$1,585

Mon 11/254:12 pmPWM - LIS

1 stop11h 53mAmerican Airlines

Fri 11/2911:05 amLIS - PWM

1 stop16h 42mAmerican Airlines

Deal found 11/20

$1,685

Sun 12/112:59 pmPWM - LIS

1 stop14h 56mAmerican Airlines

Thu 12/58:20 amLIS - PWM

2 stops19h 26mAmerican Airlines

Deal found 11/19

$1,340

Fri 12/204:05 pmPWM - LIS

2 stops35h 50mMultiple Airlines

Fri 12/2711:00 amLIS - PWM

2 stops17h 59mMultiple Airlines

Deal found 11/20

$1,563

One-way flights from Portland to Lisbon
Search for one-way flight options from Portland to Lisbon. Find affordable one-way fares based on user searches. Data last updated November 20, 2024.

Sat 3/13:02 pmPWM - LIS

1 stop11h 58mDelta

Deal found 11/19

$366

Sat 3/17:15 pmPWM - LIS

2 stops35h 10mUnited Airlines

Deal found 11/19

$383

Tue 3/116:07 pmPWM - LIS

2 stops33h 38mMultiple Airlines

Deal found 11/19

$510

Tue 3/111:07 pmPWM - LIS

1 stop16h 08mAmerican Airlines

Deal found 11/19

$590

Find flights from Portland to Lisbon within your budget

Fly from

Fly to

Route

Depart

Return

Price

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sat 1/4

5:20 am-10:00 am

1 stop23h 40m

Lisbon Humberto Delgado

Sat 1/11

5:00 am-4:52 pm

2 stops16h 52m

$779

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Fri 5/16

2:35 pm-3:50 pm

2 stops20h 15m

Lisbon Humberto Delgado

Sun 5/25

7:00 am-11:38 pm

2 stops21h 38m

$952

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Fri 5/16

5:50 pm-10:10 am

1 stop11h 20m

Lisbon Humberto Delgado

Sun 5/25

5:05 pm-9:27 am

1 stop21h 22m

$1,327

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sun 12/1

12:59 pm-8:55 am

1 stop14h 56m

Lisbon Humberto Delgado

Thu 12/5

8:20 am-10:46 pm

2 stops19h 26m

$1,340

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Fri 5/16

11:17 am-9:20 am

3 stops17h 03m

Lisbon Humberto Delgado

Sun 5/25

7:55 am-11:17 pm

3 stops20h 22m

$1,759

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sat 3/1

3:02 pm-8:00 am

1 stop11h 58m

$366

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sat 3/1

7:15 pm-11:25 am

2 stops35h 10m

$383

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Tue 3/11

6:07 pm-7:45 am

2 stops33h 38m

$510

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Tue 3/11

1:07 pm-9:15 am

1 stop16h 08m

$590

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Compare providers for flights from Portland to Lisbon

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Lisbon in November.

Provider	Price Accuracy	Trust Score*
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Portland, Maine-Lisbon flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland, Maine-Lisbon flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

Travel insights for flights from Portland to Lisbon

Get recent, data-driven insights about flights from Portland to Lisbon including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to Lisbon?

Currently, December is the cheapest month in which you can book a flight from Portland, Maine to Lisbon (average of $589). Flying from Portland, Maine to Lisbon in June is currently the most expensive (average of $1,182). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to LIS?

It’s typically best to fly out from Portland, Maine to Lisbon at noon. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in Lisbon by month

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Read reviews from past customers who have flown United Airlines and American Airlines from Portland to Lisbon. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,756 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

9,171 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines

7.3

Good

1,301 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,237 reviews

Delta

8.0

Very good

8,756 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Portland, Maine to Lisbon round-trip?
United Airlines, at $779, was found to be the cheapest airline from Portland, Maine to Lisbon.Alternate airlines to your destination round-trip include Scandinavian Airlines and American Airlines. United Airlines is currently priced 23% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Portland, Maine to Lisbon one-way?
The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $366. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Portland, Maine to Lisbon for a low price.
Can I find deals for flights from Portland to Lisbon that include hotel bookings?
Yes. In addition to deals on Portland to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Lisbon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Lisbon.
Can I find deals for business class flights from Portland to Lisbon?
Yes. Cheapflights offers flight deals from Portland to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Portland, Maine to Lisbon?
Currently, December is the cheapest month in which you can book a flight from Portland, Maine to Lisbon (average of $589). Flying from Portland, Maine to Lisbon in June is currently the most expensive (average of $1,182). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Lisbon

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Other flights to Lisbon

Top 3 airlines flying from Portland to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$524	Average$683	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$550	Average$1,025	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$590	Average$1,159	FlexibilityNo cancel fee	On-timeN/A

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$366+ Cheap flights from Portland (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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Lisbon

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Round-trip from

One-way from

Find flight deals from Portland to Lisbon

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 November 20, 2024.

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 November 20, 2024.

Find flights from Portland to Lisbon within your budget

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 November.

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.

Travel insights for flights from Portland to Lisbon

Get recent, data-driven insights about flights from Portland to Lisbon including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to Lisbon?

What is the cheapest time of day to fly from PWM to LIS?

Find hourly flight availability from Portland to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

Reviews of airlines servicing Lisbon

Read reviews from past customers who have flown United Airlines and American Airlines from Portland to Lisbon. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines flying from Portland, Maine to Lisbon round-trip?

What are the cheapest airlines to fly from Portland, Maine to Lisbon one-way?

Can I find deals for flights from Portland to Lisbon that include hotel bookings?

How can I find direct flights from Portland to Lisbon?

Can I find deals for business class flights from Portland to Lisbon?

What is the cheapest month to book a flight from Portland, Maine to Lisbon?

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 for Portland to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Portland to Lisbon

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Travel Smart

Cheapest flights from Portland to Lisbon
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 November 20, 2024.