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Cheap flights from Portland to Lisbon from $294

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 3/9. 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.
Delta Logo
1:32 pm - 5:50 pm
PDX
-
LIS
20h 18m
2 stops
Delta Logo
5:00 am - 11:10 am
LIS
-
PDX
14h 10m
1 stop
$492Delta
Tue, Apr 14 - Wed, Apr 29
Scandinavian Airlines Logo
6:05 am - 8:00 am
PDX
-
LIS
18h 55m
2 stops
Scandinavian Airlines Logo
11:25 am - 12:25 pm
LIS
-
PDX
32h 00m
1 stop
$493Scandinavian Airlines
Mon, Mar 9 - Tue, Mar 17
Lufthansa Logo
1:39 pm - 10:45 pm
PDX
-
LIS
25h 06m
2 stops
Lufthansa Logo
5:05 am - 7:05 pm
LIS
-
PDX
22h 00m
2 stops
$494Lufthansa
Tue, Apr 21 - Thu, May 7
Lufthansa Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m
2 stops
Lufthansa Logo
5:05 am - 10:29 pm
LIS
-
PDX
25h 24m
2 stops
$495Lufthansa
Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
5:30 am - 10:45 pm
PDX
-
LIS
33h 15m
2 stops
United Airlines Logo
11:25 am - 6:34 pm
LIS
-
PDX
39h 09m
2 stops
$496United Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
3:15 pm - 9:20 am
PDX
-
LIS
34h 05m
2 stops
Multiple Airlines Logo
6:15 am - 9:14 pm
LIS
-
PDX
22h 59m
2 stops
$497Multiple Airlines
Wed, Apr 8 - Wed, Apr 29
United Airlines Logo
11:59 pm - 9:20 am
PDX
-
LIS
25h 21m
2 stops
United Airlines Logo
5:05 am - 10:54 pm
LIS
-
PDX
25h 49m
2 stops
$499United Airlines
Tue, Apr 7 - Fri, Apr 17
Delta Logo
12:30 am - 5:50 pm
PDX
-
LIS
33h 20m
2 stops
Delta Logo
5:00 am - 10:05 am
LIS
-
PDX
37h 05m
2 stops
$501Delta
Sat, Apr 11 - Tue, Apr 21
Multiple Airlines Logo
6:05 am - 8:00 am
PDX
-
LIS
18h 55m
2 stops
Multiple Airlines Logo
5:00 am - 8:59 pm
LIS
-
PDX
22h 59m
2 stops
$503Multiple Airlines
Mon, Mar 9 - Tue, Mar 17
Lufthansa Logo
1:39 pm - 10:45 pm
PDX
-
LIS
25h 06m
2 stops
Lufthansa Logo
5:05 am - 10:29 pm
LIS
-
PDX
25h 24m
2 stops
$504Lufthansa
Wed, Apr 15 - Tue, Apr 21

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets
Air Canada
Apr 8
PDX7:05 pmPortland
30h 15m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 29
LIS1:00 pmLisbon Humberto Delgado
33h 40m
2 stops
PDX2:40 pmPortland
$505
Air Canada
Apr 13
PDX7:05 pmPortland
32h 00m
2 stops
LIS11:05 amLisbon Humberto Delgado
Apr 28
LIS1:00 pmLisbon Humberto Delgado
33h 40m
2 stops
PDX2:40 pmPortland
$510
Air Canada
Apr 20
PDX7:05 pmPortland
32h 00m
2 stops
LIS11:05 amLisbon Humberto Delgado
May 4
LIS11:25 amLisbon Humberto Delgado
35h 48m
2 stops
PDX3:13 pmPortland
$520

Lufthansa flights from Portland to Lisbon

Our best Lufthansa deals on Portland to Lisbon flight tickets
Lufthansa
Apr 21
PDX1:39 pmPortland
25h 06m
2 stops
LIS10:45 pmLisbon Humberto Delgado
May 7
LIS5:05 amLisbon Humberto Delgado
22h 00m
2 stops
PDX7:05 pmPortland
$494
Lufthansa
Apr 15
PDX1:39 pmPortland
25h 06m
2 stops
LIS10:45 pmLisbon Humberto Delgado
Apr 22
LIS5:05 amLisbon Humberto Delgado
25h 24m
2 stops
PDX10:29 pmPortland
$504
Lufthansa
Apr 9
PDX2:10 pmPortland
24h 05m
2 stops
LIS10:15 pmLisbon Humberto Delgado
Apr 27
LIS7:25 amLisbon Humberto Delgado
24h 33m
2 stops
PDX11:58 pmPortland
$516

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 February 11, 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

Tue 4/14

1:32 pm-5:50 pm

2 stops20h 18m

Lisbon Humberto Delgado

Wed 4/29

5:00 am-11:10 am

1 stop14h 10m

$492

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/9

6:05 am-8:00 am

2 stops18h 55m

Lisbon Humberto Delgado

Tue 3/17

11:25 am-12:25 pm

1 stop32h 00m

$493

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/21

1:39 pm-10:45 pm

2 stops25h 06m

Lisbon Humberto Delgado

Thu 5/7

5:05 am-7:05 pm

2 stops22h 00m

$494

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 4/13

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Mon 4/20

5:05 am-10:29 pm

2 stops25h 24m

$495

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/14

5:30 am-10:45 pm

2 stops33h 15m

Lisbon Humberto Delgado

Tue 4/21

11:25 am-6:34 pm

2 stops39h 09m

$496

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/8

3:15 pm-9:20 am

2 stops34h 05m

Lisbon Humberto Delgado

Wed 4/29

6:15 am-9:14 pm

2 stops22h 59m

$497

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 4/7

11:59 pm-9:20 am

2 stops25h 21m

Lisbon Humberto Delgado

Fri 4/17

5:05 am-10:54 pm

2 stops25h 49m

$499

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sat 4/11

12:30 am-5:50 pm

2 stops33h 20m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-10:05 am

2 stops37h 05m

$501

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 3/9

6:05 am-8:00 am

2 stops18h 55m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-8:59 pm

2 stops22h 59m

$503

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 4/15

1:39 pm-10:45 pm

2 stops25h 06m

Lisbon Humberto Delgado

Tue 4/21

5:05 am-10:29 pm

2 stops25h 24m

$504

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 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 $749 on momondo.

How have Portland to Lisbon flight prices changed over time?

As of February 2026, prices for Portland to Lisbon flights are approximately 15% 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 19m

Direct flights

None
The fastest flight from Portland to Lisbon takes 15h 19m
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 15h 19m, 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
611 reviews
Search Icelandair flights
KLMPriceFrom $492Free CancellationRating
7.7
1,451 reviews
Search KLM flights
LufthansaPriceFrom $501Free CancellationRating
6.8
7,780 reviews
Search Lufthansa flights
British AirwaysPriceFrom $515Free CancellationRating
6.7
7,733 reviews
Search British Airways flights
DeltaPriceFrom $523Free CancellationRating
7.9
8,181 reviews
Search Delta flights
American AirlinesPriceFrom $524Free CancellationRating
7.2
11,271 reviews
Search American Airlines flights
United AirlinesPriceFrom $545Free CancellationRating
7.4
9,281 reviews
Search United Airlines flights
Air CanadaPriceFrom $584Free CancellationRating
7.1
10,709 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
Nazaré
Fátima
Setúbal
Estoril
Peniche
Evora
Oeiras
Leiria
Sesimbra
Tomar
Figueira da Foz
Zambujeira do Mar
Batalha
Óbidos
Comporta
Torres Vedras
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.

An easier way to manage your Lisbon trip

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