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Cheap flights from Portland to Lisbon from $391

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 5/24. 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
7:30 pm - 5:55 pm
PDX
-
LIS
14h 25m
1 stop
Multiple Airlines Logo
8:25 am - 10:56 pm
LIS
-
PDX
22h 31m
2 stops
$712Multiple Airlines
Tue, Apr 28 - Tue, May 5
Finnair Logo
6:22 am - 11:25 pm
PDX
-
LIS
33h 03m
2 stops
Finnair Logo
6:35 am - 10:47 pm
LIS
-
PDX
24h 12m
2 stops
$716Finnair
Sun, Apr 26 - Sat, May 9
Multiple Airlines Logo
8:00 am - 11:50 am
PDX
-
LIS
19h 50m
2 stops
Multiple Airlines Logo
8:25 am - 10:56 pm
LIS
-
PDX
22h 31m
2 stops
$727Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
10:51 am - 11:50 am
PDX
-
LIS
16h 59m
1 stop
Multiple Airlines Logo
10:00 am - 10:13 pm
LIS
-
PDX
20h 13m
1 stop
$728Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
3:30 pm - 10:45 pm
PDX
-
LIS
23h 15m
2 stops
Multiple Airlines Logo
1:00 pm - 9:30 am
LIS
-
PDX
28h 30m
2 stops
$732Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
1:39 pm - 10:45 pm
PDX
-
LIS
25h 06m
2 stops
Multiple Airlines Logo
1:00 pm - 9:30 am
LIS
-
PDX
28h 30m
2 stops
$733Multiple Airlines
Tue, Apr 28 - Tue, May 5
Scandinavian Airlines Logo
11:03 pm - 10:05 pm
PDX
-
LIS
39h 02m
2 stops
Scandinavian Airlines Logo
5:00 pm - 11:01 pm
LIS
-
PDX
38h 01m
2 stops
$734Scandinavian Airlines
Sun, May 10 - Wed, May 13
Multiple Airlines Logo
3:59 pm - 10:45 pm
PDX
-
LIS
22h 46m
2 stops
Multiple Airlines Logo
11:25 am - 12:59 am
LIS
-
PDX
21h 34m
2 stops
$738Multiple Airlines
Thu, Apr 30 - Fri, May 8
Multiple Airlines Logo
3:59 pm - 10:45 pm
PDX
-
LIS
22h 46m
2 stops
Multiple Airlines Logo
11:25 am - 12:59 am
LIS
-
PDX
21h 34m
2 stops
$739Multiple Airlines
Thu, Apr 30 - Fri, May 8
Multiple Airlines Logo
7:30 pm - 10:05 am
PDX
-
LIS
30h 35m
1 stop
Multiple Airlines Logo
6:35 am - 8:54 pm
LIS
-
PDX
22h 19m
2 stops
$747Multiple Airlines
Sat, May 2 - Sat, May 9

Finnair flights from Portland to Lisbon

Our best Finnair deals on Portland to Lisbon flight tickets
Finnair
Apr 26
PDX6:22 amPortland
33h 03m
2 stops
LIS11:25 pmLisbon Humberto Delgado
May 9
LIS6:35 amLisbon Humberto Delgado
24h 12m
2 stops
PDX10:47 pmPortland
$716
Finnair
May 4
PDX7:00 amPortland
32h 25m
2 stops
LIS11:25 pmLisbon Humberto Delgado
May 13
LIS6:35 amLisbon Humberto Delgado
24h 12m
2 stops
PDX10:47 pmPortland
$779
Finnair
Apr 13
PDX7:00 amPortland
32h 25m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Apr 27
LIS6:35 amLisbon Humberto Delgado
24h 21m
2 stops
PDX10:56 pmPortland
$852

KLM flights from Portland to Lisbon

Our best KLM deals on Portland to Lisbon flight tickets
KLM
Apr 26
PDX5:05 pmPortland
17h 40m
2 stops
LIS6:45 pmLisbon Humberto Delgado
May 9
LIS7:45 pmLisbon Humberto Delgado
23h 25m
1 stop
PDX11:10 amPortland
$782
KLM
Apr 14
PDX1:05 pmPortland
13h 50m
1 stop
LIS10:55 amLisbon Humberto Delgado
Apr 27
LIS7:45 pmLisbon Humberto Delgado
23h 25m
1 stop
PDX11:10 amPortland
$859
KLM
Apr 13
PDX1:05 pmPortland
25h 45m
1 stop
LIS10:50 pmLisbon Humberto Delgado
Apr 28
LIS5:00 amLisbon Humberto Delgado
17h 53m
2 stops
PDX2:53 pmPortland
$869

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 April 3, 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
Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

7:30 pm-5:55 pm

1 stop14h 25m

Lisbon Humberto Delgado

Tue 5/5

8:25 am-10:56 pm

2 stops22h 31m

$712

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 4/26

6:22 am-11:25 pm

2 stops33h 03m

Lisbon Humberto Delgado

Sat 5/9

6:35 am-10:47 pm

2 stops24h 12m

$716

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

8:00 am-11:50 am

2 stops19h 50m

Lisbon Humberto Delgado

Tue 5/5

8:25 am-10:56 pm

2 stops22h 31m

$727

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

10:51 am-11:50 am

1 stop16h 59m

Lisbon Humberto Delgado

Tue 5/5

10:00 am-10:13 pm

1 stop20h 13m

$728

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/27

3:30 pm-10:45 pm

2 stops23h 15m

Lisbon Humberto Delgado

Mon 5/4

1:00 pm-9:30 am

2 stops28h 30m

$732

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/28

1:39 pm-10:45 pm

2 stops25h 06m

Lisbon Humberto Delgado

Tue 5/5

1:00 pm-9:30 am

2 stops28h 30m

$733

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 5/10

11:03 pm-10:05 pm

2 stops39h 02m

Lisbon Humberto Delgado

Wed 5/13

5:00 pm-11:01 pm

2 stops38h 01m

$734

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 4/30

3:59 pm-10:45 pm

2 stops22h 46m

Lisbon Humberto Delgado

Fri 5/8

11:25 am-12:59 am

2 stops21h 34m

$738

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 4/30

3:59 pm-10:45 pm

2 stops22h 46m

Lisbon Humberto Delgado

Fri 5/8

11:25 am-12:59 am

2 stops21h 34m

$739

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 5/2

7:30 pm-10:05 am

1 stop30h 35m

Lisbon Humberto Delgado

Sat 5/9

6:35 am-8:54 pm

2 stops22h 19m

$747

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 $557. If you are unable to visit Lisbon during the month of November, then departing from Portland during the month February is also very affordable. Most momondo users find prices during this month for around $601.

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 $831 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 $757 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 27% 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 April 2026, 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

13h 50m

Direct flights

None
The fastest flight from Portland to Lisbon takes 13h 50m
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 13h 50m, 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
630 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.7
1,485 reviews
Search KLM flights
LufthansaPriceFrom $501Free CancellationRating
6.8
7,885 reviews
Search Lufthansa flights
British AirwaysPriceFrom $511Free CancellationRating
6.7
7,843 reviews
Search British Airways flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,553 reviews
Search American Airlines flights
United AirlinesPriceFrom $543Free CancellationRating
7.4
9,539 reviews
Search United Airlines flights
DeltaPriceFrom $554Free CancellationRating
7.9
8,374 reviews
Search Delta flights
Air CanadaPriceFrom $577Free CancellationRating
7.1
10,884 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
Fátima
Ericeira
Nazaré
Setúbal
Peniche
Estoril
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Zambujeira do Mar
Óbidos
Batalha
Tomar
Comporta
Almada
Sines
Torres Vedras

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.

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