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Cheap flights from Portland to Lisbon from $333

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 9/28. 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.
Multiple Airlines Logo
5:45 pm - 5:45 pm
PDX
-
LIS
16h 00m
1 stop
Multiple Airlines Logo
6:30 am - 10:59 pm
LIS
-
PDX
24h 29m
2 stops
$796Multiple Airlines
Sun, Nov 1 - Tue, Nov 24
Multiple Airlines Logo
6:45 pm - 9:45 pm
PDX
-
LIS
20h 00m
1 stop
Multiple Airlines Logo
6:30 am - 10:59 pm
LIS
-
PDX
24h 29m
2 stops
$797Multiple Airlines
Sun, Oct 25 - Tue, Nov 3
Multiple Airlines Logo
7:30 pm - 5:55 pm
PDX
-
LIS
14h 25m
1 stop
Multiple Airlines Logo
8:20 am - 11:51 pm
LIS
-
PDX
23h 31m
2 stops
$798Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Multiple Airlines Logo
7:30 pm - 11:00 pm
PDX
-
LIS
19h 30m
1 stop
Multiple Airlines Logo
8:20 am - 11:51 pm
LIS
-
PDX
23h 31m
2 stops
$799Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Multiple Airlines Logo
7:30 pm - 11:00 pm
PDX
-
LIS
19h 30m
1 stop
Multiple Airlines Logo
11:05 am - 8:06 pm
LIS
-
PDX
17h 01m
1 stop
$803Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Multiple Airlines Logo
7:30 pm - 11:00 pm
PDX
-
LIS
19h 30m
1 stop
Multiple Airlines Logo
4:10 pm - 7:15 pm
LIS
-
PDX
35h 05m
2 stops
$804Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Multiple Airlines Logo
1:28 pm - 2:50 pm
PDX
-
LIS
18h 22m
2 stops
Multiple Airlines Logo
11:05 am - 8:06 pm
LIS
-
PDX
17h 01m
1 stop
$807Multiple Airlines
Sun, Oct 25 - Tue, Nov 3
Multiple Airlines Logo
12:32 pm - 9:05 am
PDX
-
LIS
13h 33m
1 stop
Multiple Airlines Logo
11:05 am - 8:06 pm
LIS
-
PDX
17h 01m
1 stop
$810Multiple Airlines
Sun, Oct 25 - Tue, Nov 3
Multiple Airlines Logo
12:32 pm - 9:05 am
PDX
-
LIS
13h 33m
1 stop
Multiple Airlines Logo
11:05 am - 8:06 pm
LIS
-
PDX
17h 01m
1 stop
$811Multiple Airlines
Sun, Oct 25 - Tue, Nov 3
American Airlines Logo
1:28 pm - 3:35 pm
PDX
-
LIS
18h 07m
2 stops
American Airlines Logo
11:05 am - 10:25 pm
LIS
-
PDX
19h 20m
2 stops
$812American Airlines
Tue, Oct 20 - Tue, Nov 10

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets
British Airways
Nov 1
PDX5:45 pmPortland
20h 00m
1 stop
LIS9:45 pmLisbon Humberto Delgado
Nov 24
LIS7:40 pmLisbon Humberto Delgado
28h 15m
1 stop
PDX3:55 pmPortland
$823
British Airways
Oct 20
PDX7:30 pmPortland
14h 25m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Nov 4
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$840
British Airways
Oct 21
PDX7:30 pmPortland
14h 25m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Nov 3
LIS4:00 pmLisbon Humberto Delgado
31h 55m
1 stop
PDX3:55 pmPortland
$866

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets
Air Canada
Oct 20
PDX10:10 amPortland
15h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 4
LIS5:00 amLisbon Humberto Delgado
21h 30m
2 stops
PDX6:30 pmPortland
$839
Air Canada
Oct 24
PDX7:45 pmPortland
32h 15m
2 stops
LIS11:00 amLisbon Humberto Delgado
Nov 4
LIS5:00 amLisbon Humberto Delgado
36h 25m
2 stops
PDX9:25 amPortland
$844
Air Canada
Oct 16
PDX7:45 pmPortland
53h 35m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 2
LIS5:00 amLisbon Humberto Delgado
21h 30m
2 stops
PDX6:30 pmPortland
$889

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 May 10, 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

Price

Cheapest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/1

5:45 pm-5:45 pm

1 stop16h 00m

Lisbon Humberto Delgado

Tue 11/24

6:30 am-10:59 pm

2 stops24h 29m

$796

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

6:45 pm-9:45 pm

1 stop20h 00m

Lisbon Humberto Delgado

Tue 11/3

6:30 am-10:59 pm

2 stops24h 29m

$797

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

7:30 pm-5:55 pm

1 stop14h 25m

Lisbon Humberto Delgado

Tue 11/10

8:20 am-11:51 pm

2 stops23h 31m

$798

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Tue 11/10

8:20 am-11:51 pm

2 stops23h 31m

$799

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Tue 11/10

11:05 am-8:06 pm

1 stop17h 01m

$803

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

7:30 pm-11:00 pm

1 stop19h 30m

Lisbon Humberto Delgado

Tue 11/10

4:10 pm-7:15 pm

2 stops35h 05m

$804

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

1:28 pm-2:50 pm

2 stops18h 22m

Lisbon Humberto Delgado

Tue 11/3

11:05 am-8:06 pm

1 stop17h 01m

$807
Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

12:32 pm-9:05 am

1 stop13h 33m

Lisbon Humberto Delgado

Tue 11/3

11:05 am-8:06 pm

1 stop17h 01m

$810

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

12:32 pm-9:05 am

1 stop13h 33m

Lisbon Humberto Delgado

Tue 11/3

11:05 am-8:06 pm

1 stop17h 01m

$811

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

1:28 pm-3:35 pm

2 stops18h 07m

Lisbon Humberto Delgado

Tue 11/10

11:05 am-10:25 pm

2 stops19h 20m

$812

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, February 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 $603. If you are unable to visit Lisbon during the month of February, then departing from Portland during the month November is also very affordable. Most momondo users find prices during this month for around $625.

How far in advance should I book a flight from Portland 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 $826 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 $681 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 35% 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 May 2026, prices for Portland to Lisbon flights are approximately 30% cheaper 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

Frequently asked questions about flying from Portland to Lisbon

  • 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 15h 10m, 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 $360Free CancellationRating
7.0
653 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.8
1,513 reviews
Search KLM flights
LufthansaPriceFrom $501Free CancellationRating
6.8
7,986 reviews
Search Lufthansa flights
British AirwaysPriceFrom $510Free CancellationRating
6.7
7,969 reviews
Search British Airways flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
United AirlinesPriceFrom $549Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights
DeltaPriceFrom $551Free CancellationRating
7.9
8,451 reviews
Search Delta flights
Air CanadaPriceFrom $577Free CancellationRating
7.1
11,015 reviews
Search Air Canada flights

Traveling to a place near Lisbon?

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

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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