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Cheap flights from Portland to Lisbon from $283

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 10/19. 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

Discover deals from 900+ travel sites with momondo.

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 - 12:50 pm
PDX
-
LIS
14h 05m
1 stop
Icelandair Logo
2:00 pm - 5:00 pm
LIS
-
PDX
35h 00m
1 stop
$709Icelandair
Mon, Nov 2 - Tue, Nov 17
Icelandair Logo
3:45 pm - 12:50 pm
PDX
-
LIS
14h 05m
1 stop
Icelandair Logo
2:00 pm - 5:00 pm
LIS
-
PDX
35h 00m
1 stop
$731Icelandair
Sat, Oct 31 - Thu, Nov 19
Lufthansa Logo
3:30 pm - 9:20 am
PDX
-
LIS
33h 50m
2 stops
Lufthansa Logo
5:00 am - 7:07 pm
LIS
-
PDX
22h 07m
2 stops
$741Lufthansa
Tue, Oct 20 - Tue, Nov 10
Air Canada Logo
3:15 pm - 10:40 am
PDX
-
LIS
35h 25m
2 stops
Air Canada Logo
5:00 am - 2:41 pm
LIS
-
PDX
17h 41m
2 stops
$742Air Canada
Sun, Nov 1 - Thu, Nov 19
Multiple Airlines Logo
10:00 am - 8:10 am
PDX
-
LIS
14h 10m
1 stop
Multiple Airlines Logo
5:00 am - 8:46 pm
LIS
-
PDX
23h 46m
2 stops
$744Multiple Airlines
Mon, Nov 2 - Wed, Nov 18
Lufthansa Logo
3:30 pm - 9:20 am
PDX
-
LIS
33h 50m
2 stops
Lufthansa Logo
5:00 am - 7:07 pm
LIS
-
PDX
22h 07m
2 stops
$745Lufthansa
Tue, Oct 20 - Tue, Nov 10
United Airlines Logo
10:00 am - 8:10 am
PDX
-
LIS
15h 10m
1 stop
United Airlines Logo
12:50 pm - 7:07 pm
LIS
-
PDX
38h 17m
2 stops
$746United Airlines
Sun, Oct 25 - Tue, Nov 3
Air Canada Logo
5:30 am - 6:55 am
PDX
-
LIS
17h 25m
2 stops
Air Canada Logo
5:00 am - 2:41 pm
LIS
-
PDX
17h 41m
2 stops
$747Air Canada
Wed, Nov 4 - Tue, Nov 17
Multiple Airlines Logo
10:58 am - 8:20 am
PDX
-
LIS
13h 22m
1 stop
Multiple Airlines Logo
5:00 am - 8:46 pm
LIS
-
PDX
23h 46m
2 stops
$748Multiple Airlines
Tue, Oct 20 - Tue, Nov 10
Delta Logo
5:50 am - 5:30 pm
PDX
-
LIS
27h 40m
2 stops
Delta Logo
5:00 am - 11:20 am
LIS
-
PDX
14h 20m
1 stop
$749Delta
Wed, Nov 4 - Fri, Nov 20

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Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets
Lufthansa
Oct 20
PDX3:30 pmPortland
33h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 10
LIS5:00 amLisbon Humberto Delgado
22h 07m
2 stops
PDX7:07 pmPortland
$741
Lufthansa
Oct 20
PDX3:30 pmPortland
33h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 10
LIS5:00 amLisbon Humberto Delgado
22h 07m
2 stops
PDX7:07 pmPortland
$745
Lufthansa
Nov 1
PDX10:00 amPortland
40h 40m
2 stops
LIS10:40 amLisbon Humberto Delgado
Nov 16
LIS12:25 pmLisbon Humberto Delgado
34h 16m
2 stops
PDX2:41 pmPortland
$767

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets
United Airlines
Oct 25
PDX10:00 amPortland
15h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
Nov 3
LIS12:50 pmLisbon Humberto Delgado
38h 17m
2 stops
PDX7:07 pmPortland
$746
United Airlines
Oct 20
PDX10:58 amPortland
13h 22m
1 stop
LIS8:20 amLisbon Humberto Delgado
Nov 10
LIS12:50 pmLisbon Humberto Delgado
31h 03m
2 stops
PDX11:53 amPortland
$751
United Airlines
Dec 9
PDX8:00 amPortland
18h 20m
1 stop
LIS10:20 amLisbon Humberto Delgado
Dec 22
LIS5:00 amLisbon Humberto Delgado
26h 00m
2 stops
PDX11:00 pmPortland
$758

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 July 23, 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

Mon 11/2

2:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Tue 11/17

2:00 pm-5:00 pm

1 stop35h 00m

$709

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 10/31

3:45 pm-12:50 pm

1 stop14h 05m

Lisbon Humberto Delgado

Thu 11/19

2:00 pm-5:00 pm

1 stop35h 00m

$731

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-7:07 pm

2 stops22h 07m

$741

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 11/1

3:15 pm-10:40 am

2 stops35h 25m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-2:41 pm

2 stops17h 41m

$742

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 11/2

10:00 am-8:10 am

1 stop14h 10m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-8:46 pm

2 stops23h 46m

$744

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

3:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-7:07 pm

2 stops22h 07m

$745

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 10/25

10:00 am-8:10 am

1 stop15h 10m

Lisbon Humberto Delgado

Tue 11/3

12:50 pm-7:07 pm

2 stops38h 17m

$746
Quickest round-trip

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 11/4

5:30 am-6:55 am

2 stops17h 25m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-2:41 pm

2 stops17h 41m

$747

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 10/20

10:58 am-8:20 am

1 stop13h 22m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-8:46 pm

2 stops23h 46m

$748

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 11/4

5:50 am-5:30 pm

2 stops27h 40m

Lisbon Humberto Delgado

Fri 11/20

5:00 am-11:20 am

1 stop14h 20m

$749

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 $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 $859 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 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 July 2026, prices for Portland to Lisbon flights are approximately 21% 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
Virgin AtlanticPriceFrom $318Free CancellationRating
7.5
693 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom $360Free CancellationRating
7.0
716 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.8
1,544 reviews
Search KLM flights
DeltaPriceFrom $492Free CancellationRating
7.8
8,479 reviews
Search Delta flights
LufthansaPriceFrom $501Free CancellationRating
6.8
8,159 reviews
Search Lufthansa flights
United AirlinesPriceFrom $508Free CancellationRating
7.4
10,024 reviews
Search United Airlines flights
British AirwaysPriceFrom $510Free CancellationRating
6.7
8,127 reviews
Search British Airways flights
Air CanadaPriceFrom $584Free CancellationRating
7.1
11,371 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
Figueira da Foz
Setúbal
Estoril
Fátima
Nazaré
Evora
Leiria
Peniche
Batalha
Sesimbra
Óbidos
Oeiras
Zambujeira do Mar
Tomar
Torres Vedras
Comporta
Sines
Costa da Caparica

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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