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Cheap flights from Portland to Lisbon from $296

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 10/31. 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
1 adult, Economy, 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
10:00 am - 10:40 amPDX  Portland-LIS Lisbon Humberto Delgado
16h 40m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:00 am - 6:31 pmLIS  Lisbon Humberto Delgado-PDX Portland
21h 31m2 stops Frankfurt am Main Vancouver Intl
$711Multiple Airlines
Mon, Nov 2 - Tue, Nov 24
United Airlines Logo
8:30 am - 10:20 amPDX  Portland-LIS Lisbon Humberto Delgado
17h 50m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:50 pm - 3:20 pmLIS  Lisbon Humberto Delgado-PDX Portland
34h 30m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$746United Airlines
Mon, Nov 2 - Tue, Nov 24
Multiple Airlines Logo
10:10 am - 9:20 amPDX  Portland-LIS Lisbon Humberto Delgado
15h 10m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
6:45 am - 7:06 pmLIS  Lisbon Humberto Delgado-PDX Portland
20h 21m2 stops Frankfurt am Main Vancouver Intl
$757Multiple Airlines
Mon, Sep 28 - Tue, Oct 13
British Airways Logo
5:45 pm - 6:55 pmPDX  Portland-LIS Lisbon Humberto Delgado
17h 10m1 stop London Heathrow
British Airways Logo
7:40 pm - 3:50 pmLIS  Lisbon Humberto Delgado-PDX Portland
28h 10m1 stop London Heathrow
$764British Airways
Mon, Nov 2 - Tue, Nov 24
Delta Logo
7:00 am - 8:00 amPDX  Portland-LIS Lisbon Humberto Delgado
18h 00m1 stop New York John F Kennedy Intl
Delta Logo
10:00 am - 8:50 pmLIS  Lisbon Humberto Delgado-PDX Portland
18h 50m1 stop New York John F Kennedy Intl
$766Delta
Sun, Oct 25 - Tue, Nov 3
United Airlines Logo
10:58 am - 8:20 amPDX  Portland-LIS Lisbon Humberto Delgado
13h 22m1 stop Newark
United Airlines Logo
12:20 pm - 8:15 pmLIS  Lisbon Humberto Delgado-PDX Portland
15h 55m1 stop Washington, D.C. Dulles Intl
$766United Airlines
Tue, Oct 20 - Tue, Nov 10
Icelandair Logo
3:30 pm - 1:50 pmPDX  Portland-LIS Lisbon Humberto Delgado
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
3:00 pm - 5:55 pmLIS  Lisbon Humberto Delgado-PDX Portland
34h 55m1 stop Reykjavik Keflavik Intl
$771Icelandair
Mon, Sep 28 - Tue, Oct 13
Delta Logo
1:00 pm - 5:50 pmPDX  Portland-LIS Lisbon Humberto Delgado
20h 50m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle
Delta Logo
5:00 am - 11:10 amLIS  Lisbon Humberto Delgado-PDX Portland
14h 10m1 stop Amsterdam Schiphol
$780Delta
Wed, Oct 14 - Wed, Oct 21
British Airways Logo
5:45 pm - 5:55 pmPDX  Portland-LIS Lisbon Humberto Delgado
16h 10m1 stop London Heathrow
British Airways Logo
11:05 am - 10:03 pmLIS  Lisbon Humberto Delgado-PDX Portland
18h 58m1 stop Philadelphia
$785British Airways
Fri, Nov 6 - Fri, Nov 13
Icelandair Logo
3:45 pm - 12:50 pmPDX  Portland-LIS Lisbon Humberto Delgado
14h 05m1 stop Reykjavik Keflavik Intl
Icelandair Logo
2:00 pm - 5:00 pmLIS  Lisbon Humberto Delgado-PDX Portland
35h 00m1 stop Reykjavik Keflavik Intl
$843Icelandair
Sat, Oct 31 - Sun, Nov 8

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Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets
Air Canada
Oct 12
PDX7:45 pmPortland
29h 35m
2 stops
LIS9:20 amLisbon Humberto Delgado
Oct 20
LIS6:45 amLisbon Humberto Delgado
20h 21m
2 stops
PDX7:06 pmPortland
$774
Air Canada
Oct 31
PDX7:10 pmPortland
31h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 8
LIS5:00 amLisbon Humberto Delgado
21h 31m
2 stops
PDX6:31 pmPortland
$797
Air Canada
Nov 4
PDX5:36 amPortland
19h 19m
2 stops
LIS8:55 amLisbon Humberto Delgado
Nov 14
LIS11:20 amLisbon Humberto Delgado
39h 04m
2 stops
PDX6:24 pmPortland
$809

Delta flights from Portland to Lisbon

Our best Delta deals on Portland to Lisbon flight tickets
Delta
Oct 14
PDX1:00 pmPortland
20h 50m
2 stops
LIS5:50 pmLisbon Humberto Delgado
Oct 21
LIS5:00 amLisbon Humberto Delgado
14h 10m
1 stop
PDX11:10 amPortland
$780
Delta
Oct 17
PDX10:15 pmPortland
25h 45m
1 stop
LIS8:00 amLisbon Humberto Delgado
Oct 30
LIS5:00 amLisbon Humberto Delgado
14h 20m
1 stop
PDX12:20 pmPortland
$787
Delta
Nov 11
PDX1:20 pmPortland
17h 20m
1 stop
LIS2:40 pmLisbon Humberto Delgado
Nov 16
LIS5:00 amLisbon Humberto Delgado
14h 20m
1 stop
PDX11:20 amPortland
$800

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 August 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 Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

10:00 am-10:40 am

2 stops16h 40m

Lisbon Humberto Delgado

Tue 11/24

5:00 am-6:31 pm

2 stops21h 31m

$711

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

8:30 am-10:20 am

1 stop17h 50m

Lisbon Humberto Delgado

Tue 11/24

12:50 pm-3:20 pm

2 stops34h 30m

$746

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 9/28

10:10 am-9:20 am

2 stops15h 10m

Lisbon Humberto Delgado

Tue 10/13

6:45 am-7:06 pm

2 stops20h 21m

$757

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 11/2

5:45 pm-6:55 pm

1 stop17h 10m

Lisbon Humberto Delgado

Tue 11/24

7:40 pm-3:50 pm

1 stop28h 10m

$764

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sun 10/25

7:00 am-8:00 am

1 stop18h 00m

Lisbon Humberto Delgado

Tue 11/3

10:00 am-8:50 pm

1 stop18h 50m

$766
Quickest round-trip

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Tue 10/20

10:58 am-8:20 am

1 stop13h 22m

Lisbon Humberto Delgado

Tue 11/10

12:20 pm-8:15 pm

1 stop15h 55m

$766

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Mon 9/28

3:30 pm-1:50 pm

1 stop14h 20m

Lisbon Humberto Delgado

Tue 10/13

3:00 pm-5:55 pm

1 stop34h 55m

$771

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Wed 10/14

1:00 pm-5:50 pm

2 stops20h 50m

Lisbon Humberto Delgado

Wed 10/21

5:00 am-11:10 am

1 stop14h 10m

$780

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Fri 11/6

5:45 pm-5:55 pm

1 stop16h 10m

Lisbon Humberto Delgado

Fri 11/13

11:05 am-10:03 pm

1 stop18h 58m

$785

PortlandLisbon

PDX Portland - LIS Lisbon Humberto Delgado

PDXLIS

Portland

Sat 10/31

3:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Sun 11/8

2:00 pm-5:00 pm

1 stop35h 00m

$843

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $655 to $1,049.
The lowest price recently found on this route was $766.

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 $598. 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 $654.

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 $871 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 $745 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 11% 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 August 2026, prices for Portland to Lisbon flights are approximately 3% 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

14h 05m

Direct flights

None
The fastest flight from Portland to Lisbon takes 14h 05m
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 14h 05m, 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
Virgin AtlanticPriceFrom $318Free CancellationRating
7.5
694 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom $360Free CancellationRating
6.9
728 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.8
1,555 reviews
Search KLM flights
DeltaPriceFrom $492Free CancellationRating
7.8
8,500 reviews
Search Delta flights
LufthansaPriceFrom $501Free CancellationRating
6.8
8,174 reviews
Search Lufthansa flights
British AirwaysPriceFrom $509Free CancellationRating
6.7
8,155 reviews
Search British Airways flights
United AirlinesPriceFrom $549Free CancellationRating
7.4
10,100 reviews
Search United Airlines flights
Air CanadaPriceFrom $576Free CancellationRating
7.1
11,460 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
Figueira da Foz
Setúbal
Nazaré
Estoril
Evora
Ericeira
Peniche
Óbidos
Tomar
Batalha
Leiria
Oeiras
Sesimbra
Zambujeira do Mar
Torres Vedras
Comporta
Sines
Caldas da Rainha

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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