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Cheap flights from Portland to Lisbon from $301

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Lisbon departing on 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:45 pm - 8:20 pm
PDX
-
LIS
21h 35m1 stop
Icelandair Logo
9:20 pm - 6:00 pm
LIS
-
PDX
27h 40m1 stop
$370Icelandair
Sat, Mar 7 - Thu, Mar 19
Icelandair Logo
2:45 pm - 8:20 pm
PDX
-
LIS
21h 35m1 stop
Icelandair Logo
9:20 pm - 6:00 pm
LIS
-
PDX
27h 40m1 stop
$374Icelandair
Sat, Mar 7 - Sun, Mar 22
Multiple Airlines Logo
7:00 pm - 9:20 am
PDX
-
LIS
30h 20m2 stops
Multiple Airlines Logo
5:00 am - 12:39 am
LIS
-
PDX
27h 39m2 stops
$458Multiple Airlines
Sun, Jan 18 - Sat, Jan 31
Multiple Airlines Logo
9:50 am - 9:20 am
PDX
-
LIS
15h 30m2 stops
Multiple Airlines Logo
5:00 am - 6:30 pm
LIS
-
PDX
21h 30m2 stops
$460Multiple Airlines
Tue, Jan 13 - Mon, Jan 26
Multiple Airlines Logo
7:00 am - 8:00 am
PDX
-
LIS
17h 00m1 stop
Multiple Airlines Logo
11:25 am - 11:25 am
LIS
-
PDX
32h 00m1 stop
$474Multiple Airlines
Sun, Jan 18 - Sat, Jan 31
Lufthansa Logo
9:50 am - 7:55 am
PDX
-
LIS
38h 05m2 stops
Lufthansa Logo
5:00 am - 6:49 pm
LIS
-
PDX
21h 49m2 stops
$478Lufthansa
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
7:00 am - 8:00 am
PDX
-
LIS
17h 00m1 stop
Multiple Airlines Logo
5:00 am - 6:50 pm
LIS
-
PDX
21h 50m2 stops
$481Multiple Airlines
Sun, Jan 18 - Sat, Jan 31
Air Canada Logo
3:15 pm - 7:55 am
PDX
-
LIS
32h 40m2 stops
Air Canada Logo
5:00 am - 6:30 pm
LIS
-
PDX
21h 30m2 stops
$482Air Canada
Wed, Feb 4 - Wed, Feb 11
British Airways Logo
5:45 pm - 5:40 pm
PDX
-
LIS
15h 55m1 stop
British Airways Logo
7:05 am - 3:55 pm
LIS
-
PDX
16h 50m1 stop
$483British Airways
Wed, Feb 18 - Wed, Feb 25
Air Canada Logo
9:50 am - 9:20 am
PDX
-
LIS
15h 30m2 stops
Air Canada Logo
11:20 am - 6:56 pm
LIS
-
PDX
39h 36m2 stops
$485Air Canada
Thu, Jan 15 - Thu, Jan 29

Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets
Lufthansa
Feb 18
PDX9:50 amPortland
38h 05m
2 stops
LIS7:55 amLisbon Humberto Delgado
Feb 25
LIS5:00 amLisbon Humberto Delgado
21h 49m
2 stops
PDX6:49 pmPortland
$478
Find similar
Lufthansa
Jan 12
PDX9:50 amPortland
39h 30m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 29
LIS5:00 amLisbon Humberto Delgado
26h 06m
2 stops
PDX11:06 pmPortland
$493
Find similar
Lufthansa
Jan 12
PDX9:50 amPortland
39h 30m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 28
LIS6:10 amLisbon Humberto Delgado
20h 46m
2 stops
PDX6:56 pmPortland
$494
Find similar

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets
British Airways
Feb 18
PDX5:45 pmPortland
32h 10m
1 stop
LIS9:55 amLisbon Humberto Delgado
Feb 25
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$483
Find similar
British Airways
Jan 12
PDX2:18 pmPortland
23h 37m
2 stops
LIS9:55 pmLisbon Humberto Delgado
Jan 19
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$504
Find similar
British Airways
Mar 6
PDX5:45 pmPortland
32h 10m
1 stop
LIS9:55 amLisbon Humberto Delgado
Mar 22
LIS3:55 pmLisbon Humberto Delgado
32h 00m
1 stop
PDX4:55 pmPortland
$508
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 8, 2025.
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

Price

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 3/7

2:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Thu 3/19

9:20 pm-6:00 pm

1 stop27h 40m

$370

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 3/7

2:45 pm-8:20 pm

1 stop21h 35m

Lisbon Humberto Delgado

Sun 3/22

9:20 pm-6:00 pm

1 stop27h 40m

$374

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 1/18

7:00 pm-9:20 am

2 stops30h 20m

Lisbon Humberto Delgado

Sat 1/31

5:00 am-12:39 am

2 stops27h 39m

$458

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 1/13

9:50 am-9:20 am

2 stops15h 30m

Lisbon Humberto Delgado

Mon 1/26

5:00 am-6:30 pm

2 stops21h 30m

$460

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 1/18

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Sat 1/31

11:25 am-11:25 am

1 stop32h 00m

$474

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

9:50 am-7:55 am

2 stops38h 05m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-6:49 pm

2 stops21h 49m

$478

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 1/18

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Sat 1/31

5:00 am-6:50 pm

2 stops21h 50m

$481

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

3:15 pm-7:55 am

2 stops32h 40m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-6:30 pm

2 stops21h 30m

$482

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

5:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 2/25

7:05 am-3:55 pm

1 stop16h 50m

$483

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 1/15

9:50 am-9:20 am

2 stops15h 30m

Lisbon Humberto Delgado

Thu 1/29

11:20 am-6:56 pm

2 stops39h 36m

$485

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lisbon from

How to get the cheapest flight ticket from Portland to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Lisbon?

What is the cheapest month to fly to Lisbon?

In general, November is the cheapest month to fly from Portland to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $558. If you are unable to visit Lisbon during the month of November, then departing from Portland during the month October is also very affordable. Most momondo users find prices during this month for around $740.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $622. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $981 on average. Flights to Lisbon from Portland in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $907 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Portland for as low as $785 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 26% on your flight if you consider stops on a Portland to Lisbon flight.

How have Portland to Lisbon flight prices changed over time?

As of December 2025, prices for Portland to Lisbon flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Lisbon according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Lisbon (PDX to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Lisbon

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Portland to Lisbon takes 15h 10m
There are no direct flights from Portland to Lisbon. There are no popular flight routes from Portland to Lisbon.
Search flight deals

  • How far is Portland to Lisbon Humberto Delgado by plane?

    The distance between Portland and Lisbon Humberto Delgado is about 5304.2 mi. Flights usually cover this in 14h 25m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Lisbon Humberto Delgado Airport?

    Prices for flights from Portland Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Portland Airport to Lisbon Humberto Delgado Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Lisbon?

Best airlines flying from Portland to Lisbon

Compare and see reviews for airlines that fly from Portland to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $391Free CancellationRating
7.0
588 reviews
Search Icelandair flights
KLMPriceFrom $558Free CancellationRating
7.7
1,431 reviews
Search KLM flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
DeltaPriceFrom $574Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,086 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $622Free CancellationRating
6.7
7,569 reviews
Search British Airways flights
Air CanadaPriceFrom $634Free CancellationRating
7.1
10,513 reviews
Search Air Canada flights
LufthansaPriceFrom $692Free CancellationRating
6.8
7,618 reviews
Search Lufthansa flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Comporta
Torres Vedras
Sines
Óbidos

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Lisbon?

Finding the right flight to Lisbon from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Lisbon quick and easy, saving you time and money.

Can I find flights from Portland to Lisbon with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Lisbon from Portland with this policy.

How can momondo help me find flights from Portland to Lisbon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Lisbon.

I’m not ready to book a flight from Portland to Lisbon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Lisbon trip

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