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Cheap flights from Portland to Lisbon from $301

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 4/16. 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.
Icelandair Logo
3:30 pm - 1:50 pm
PDX
-
LIS
14h 20m1 stop
Icelandair Logo
10:20 pm - 5:55 pm
LIS
-
PDX
27h 35m1 stop
$404Icelandair
Sat, May 9 - Thu, May 21
United Airlines Logo
8:05 am - 10:30 am
PDX
-
LIS
18h 25m1 stop
United Airlines Logo
11:25 am - 6:34 pm
LIS
-
PDX
39h 09m2 stops
$437United Airlines
Tue, Apr 14 - Tue, Apr 28
Multiple Airlines Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m2 stops
Multiple Airlines Logo
11:25 am - 6:30 pm
LIS
-
PDX
39h 05m2 stops
$442Multiple Airlines
Mon, Apr 13 - Tue, Apr 28
Multiple Airlines Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m2 stops
Multiple Airlines Logo
11:25 am - 6:30 pm
LIS
-
PDX
39h 05m2 stops
$443Multiple Airlines
Mon, Apr 13 - Tue, Apr 28
American Airlines Logo
5:45 pm - 6:55 pm
PDX
-
LIS
17h 10m1 stop
American Airlines Logo
8:20 am - 9:58 pm
LIS
-
PDX
21h 38m2 stops
$444American Airlines
Mon, Feb 9 - Wed, Feb 25
Multiple Airlines Logo
2:18 pm - 6:55 pm
PDX
-
LIS
20h 37m2 stops
Multiple Airlines Logo
6:30 am - 9:52 pm
LIS
-
PDX
23h 22m2 stops
$445Multiple Airlines
Mon, Feb 9 - Wed, Feb 25
Multiple Airlines Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m2 stops
Multiple Airlines Logo
12:05 pm - 7:05 pm
LIS
-
PDX
39h 00m2 stops
$448Multiple Airlines
Mon, Apr 6 - Wed, May 6
Multiple Airlines Logo
5:45 pm - 5:40 pm
PDX
-
LIS
15h 55m1 stop
Multiple Airlines Logo
6:30 am - 9:52 pm
LIS
-
PDX
23h 22m2 stops
$449Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
British Airways Logo
7:30 pm - 11:15 pm
PDX
-
LIS
19h 45m1 stop
British Airways Logo
11:00 am - 5:40 pm
LIS
-
PDX
14h 40m1 stop
$451British Airways
Wed, Apr 8 - Wed, Apr 29
Finnair Logo
6:22 am - 3:40 pm
PDX
-
LIS
25h 18m2 stops
Finnair Logo
6:35 am - 10:32 pm
LIS
-
PDX
23h 57m2 stops
$452Finnair
Mon, Apr 27 - Wed, May 6

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets
British Airways
Apr 8
PDX7:30 pmPortland
19h 40m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Apr 22
LIS7:20 amLisbon Humberto Delgado
18h 20m
1 stop
PDX5:40 pmPortland
$451
British Airways
Feb 4
PDX6:00 amPortland
22h 10m
2 stops
LIS12:10 pmLisbon Humberto Delgado
Feb 11
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$455
British Airways
Apr 13
PDX7:30 pmPortland
14h 25m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Apr 27
LIS5:10 pmLisbon Humberto Delgado
32h 30m
1 stop
PDX5:40 pmPortland
$457

American Airlines flights from Portland to Lisbon

Our best American Airlines deals on Portland to Lisbon flight tickets
American Airlines
Feb 9
PDX5:45 pmPortland
20h 10m
1 stop
LIS9:55 pmLisbon Humberto Delgado
Feb 25
LIS8:20 amLisbon Humberto Delgado
21h 32m
2 stops
PDX9:52 pmPortland
$443
American Airlines
Feb 9
PDX5:45 pmPortland
17h 10m
1 stop
LIS6:55 pmLisbon Humberto Delgado
Feb 25
LIS8:20 amLisbon Humberto Delgado
21h 38m
2 stops
PDX9:58 pmPortland
$444
American Airlines
Feb 9
PDX5:45 pmPortland
17h 10m
1 stop
LIS6:55 pmLisbon Humberto Delgado
Feb 25
LIS7:05 amLisbon Humberto Delgado
16h 50m
1 stop
PDX3:55 pmPortland
$459

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 January 8, 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

Sat 5/9

3:30 pm-1:50 pm

1 stop14h 20m

Lisbon Humberto Delgado

Thu 5/21

10:20 pm-5:55 pm

1 stop27h 35m

$404

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/14

8:05 am-10:30 am

1 stop18h 25m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-6:34 pm

2 stops39h 09m

$437

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-6:30 pm

2 stops39h 05m

$442

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-6:30 pm

2 stops39h 05m

$443

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/9

5:45 pm-6:55 pm

1 stop17h 10m

Lisbon Humberto Delgado

Wed 2/25

8:20 am-9:58 pm

2 stops21h 38m

$444

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/9

2:18 pm-6:55 pm

2 stops20h 37m

Lisbon Humberto Delgado

Wed 2/25

6:30 am-9:52 pm

2 stops23h 22m

$445

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/6

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Wed 5/6

12:05 pm-7:05 pm

2 stops39h 00m

$448

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

5:45 pm-5:40 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 2/25

6:30 am-9:52 pm

2 stops23h 22m

$449

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/8

7:30 pm-11:15 pm

1 stop19h 45m

Lisbon Humberto Delgado

Wed 4/29

11:00 am-5:40 pm

1 stop14h 40m

$451

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/27

6:22 am-3:40 pm

2 stops25h 18m

Lisbon Humberto Delgado

Wed 5/6

6:35 am-10:32 pm

2 stops23h 57m

$452

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 February is also very affordable. Most momondo users find prices during this month for around $670.

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 $869 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 $806 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 21% 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 11% 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

14h 15m

Direct flights

None
The fastest flight from Portland to Lisbon takes 14h 15m
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 15m, 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 $515Free CancellationRating
7.7
1,434 reviews
Search KLM flights
American AirlinesPriceFrom $524Free CancellationRating
7.2
11,097 reviews
Search American Airlines flights
DeltaPriceFrom $559Free CancellationRating
7.9
8,032 reviews
Search Delta flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,142 reviews
Search United Airlines flights
British AirwaysPriceFrom $593Free CancellationRating
6.7
7,659 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $603Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom $627Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
LufthansaPriceFrom $692Free CancellationRating
6.8
7,698 reviews
Search Lufthansa 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
Estoril
Peniche
Leiria
Oeiras
Sesimbra
Tomar
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Torres Vedras
Óbidos
Comporta
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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