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Cheap flights from Portland to Lisbon from $303

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 2/17. 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
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m2 stops
Multiple Airlines Logo
6:40 pm - 7:05 pm
LIS
-
PDX
32h 25m2 stops
$470Multiple Airlines
seg, abr 6 - qua, mai 6
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
qua, fev 18 - qua, fev 25
Multiple Airlines Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m2 stops
Multiple Airlines Logo
6:40 pm - 10:29 pm
LIS
-
PDX
35h 49m2 stops
$480Multiple Airlines
seg, abr 13 - ter, abr 28
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
$481Lufthansa
qua, fev 18 - qua, fev 25
Delta Logo
7:00 am - 8:00 am
PDX
-
LIS
17h 00m1 stop
Delta Logo
5:00 am - 11:25 am
LIS
-
PDX
14h 25m1 stop
$482Delta
qui, jan 29 - qua, fev 11
Multiple Airlines Logo
7:00 am - 8:00 am
PDX
-
LIS
17h 00m1 stop
Multiple Airlines Logo
5:00 am - 11:25 am
LIS
-
PDX
14h 25m1 stop
$483Multiple Airlines
qui, jan 29 - qua, fev 11
British Airways Logo
5:45 pm - 9:50 pm
PDX
-
LIS
20h 05m1 stop
British Airways Logo
7:05 am - 3:55 pm
LIS
-
PDX
16h 50m1 stop
$484British Airways
qua, fev 18 - qua, fev 25
United Airlines Logo
11:05 pm - 8:10 am
PDX
-
LIS
25h 05m1 stop
United Airlines Logo
5:00 am - 9:49 pm
LIS
-
PDX
24h 49m2 stops
$485United Airlines
qui, jan 29 - qua, fev 11
United Airlines Logo
3:45 pm - 8:10 am
PDX
-
LIS
32h 25m2 stops
United Airlines Logo
5:00 am - 9:49 pm
LIS
-
PDX
24h 49m2 stops
$486United Airlines
qui, jan 29 - qua, fev 11
KLM Logo
7:00 am - 8:00 am
PDX
-
LIS
17h 00m1 stop
KLM Logo
11:55 am - 11:10 am
LIS
-
PDX
31h 15m1 stop
$487KLM
seg, abr 13 - seg, abr 27

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets
United Airlines
Jan 29
PDX1:35 pmPortland
34h 35m
3 stops
LIS8:10 amLisbon Humberto Delgado
Feb 11
LIS5:00 amLisbon Humberto Delgado
24h 49m
2 stops
PDX9:49 pmPortland
$485
Find similar
United Airlines
Jan 29
PDX11:05 pmPortland
25h 05m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 11
LIS5:00 amLisbon Humberto Delgado
24h 49m
2 stops
PDX9:49 pmPortland
$486
Find similar
United Airlines
Apr 13
PDX11:59 pmPortland
25h 21m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 27
LIS11:25 amLisbon Humberto Delgado
32h 21m
2 stops
PDX11:46 amPortland
$490
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
20h 05m
1 stop
LIS9:50 pmLisbon Humberto Delgado
Feb 25
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$484
Find similar
British Airways
Apr 14
PDX8:00 amPortland
23h 30m
2 stops
LIS3:30 pmLisbon Humberto Delgado
May 3
LIS6:50 pmLisbon Humberto Delgado
30h 50m
1 stop
PDX5:40 pmPortland
$505
Find similar
British Airways
Mar 6
PDX5:45 pmPortland
20h 40m
1 stop
LIS10:25 pmLisbon Humberto Delgado
Mar 12
LIS12:55 pmLisbon Humberto Delgado
35h 00m
1 stop
PDX4:55 pmPortland
$506
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 janeiro 1, 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

PortlandLisbon

PDX - LIS

PDXLIS

Portland

seg 4/6

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

qua 5/6

6:40 pm-7:05 pm

2 stops32h 25m

$470

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qua 2/18

9:50 am-7:55 am

2 stops38h 05m

Lisbon Humberto Delgado

qua 2/25

5:00 am-6:49 pm

2 stops21h 49m

$478

PortlandLisbon

PDX - LIS

PDXLIS

Portland

seg 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

ter 4/28

6:40 pm-10:29 pm

2 stops35h 49m

$480

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qua 2/18

9:50 am-7:55 am

2 stops38h 05m

Lisbon Humberto Delgado

qua 2/25

5:00 am-6:49 pm

2 stops21h 49m

$481

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qui 1/29

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

qua 2/11

5:00 am-11:25 am

1 stop14h 25m

$482

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qui 1/29

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

qua 2/11

5:00 am-11:25 am

1 stop14h 25m

$483

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qua 2/18

5:45 pm-9:50 pm

1 stop20h 05m

Lisbon Humberto Delgado

qua 2/25

7:05 am-3:55 pm

1 stop16h 50m

$484

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qui 1/29

11:05 pm-8:10 am

1 stop25h 05m

Lisbon Humberto Delgado

qua 2/11

5:00 am-9:49 pm

2 stops24h 49m

$485

PortlandLisbon

PDX - LIS

PDXLIS

Portland

qui 1/29

3:45 pm-8:10 am

2 stops32h 25m

Lisbon Humberto Delgado

qua 2/11

5:00 am-9:49 pm

2 stops24h 49m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

seg 4/13

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

seg 4/27

11:55 am-11:10 am

1 stop31h 15m

$487

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 $739.

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 $904 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 $775 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 January 2026, prices for Portland to Lisbon flights are approximately 6% 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 25m

Direct flights

None
The fastest flight from Portland to Lisbon takes 14h 25m
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 $360Free CancellationRating
7.1
593 reviews
Search Icelandair flights
KLMPriceFrom $541Free CancellationRating
7.7
1,435 reviews
Search KLM flights
DeltaPriceFrom $563Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,635 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom $634Free CancellationRating
7.1
10,572 reviews
Search Air Canada flights
LufthansaPriceFrom $692Free CancellationRating
6.8
7,674 reviews
Search Lufthansa 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
Estoril
Peniche
Leiria
Oeiras
Sesimbra
Tomar
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Torres Vedras
Comporta
Óbidos
Sines
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.

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