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Cheap flights from Portland to Lisbon from $338

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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Lisbon

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to Lisbon.
Air Canada Logo
7:40 pm - 9:20 amPDX-LIS
29h 40m2 stops
Air Canada Logo
5:00 am - 6:24 pmLIS-PDX
21h 24m2 stops
$624Air Canada
Find Deal
Sun, Oct 12 - Sun, Nov 16
United Airlines Logo
7:35 pm - 9:20 amPDX-LIS
29h 45m2 stops
United Airlines Logo
11:25 am - 3:05 pmLIS-PDX
35h 40m2 stops
$673United Airlines
Find Deal
Mon, Oct 13 - Tue, Oct 21
KLM Logo
7:00 am - 8:00 amPDX-LIS
17h 00m1 stop
KLM Logo
9:20 am - 7:13 pmLIS-PDX
17h 53m2 stops
$719KLM
Find Deal
Mon, Oct 13 - Tue, Oct 21
Delta Logo
11:20 am - 2:50 pmPDX-LIS
19h 30m2 stops
Delta Logo
5:00 am - 11:25 amLIS-PDX
14h 25m1 stop
$725Delta
Find Deal
Sun, Oct 12 - Sun, Nov 16
Delta Logo
3:15 pm - 5:55 pmPDX-LIS
18h 40m2 stops
Delta Logo
5:00 am - 12:25 pmLIS-PDX
14h 25m1 stop
$726Delta
Find Deal
Sat, Oct 18 - Fri, Oct 31
British Airways Logo
7:25 pm - 5:55 pmPDX-LIS
14h 30m1 stop
British Airways Logo
6:35 am - 10:52 pmLIS-PDX
24h 17m2 stops
$748British Airways
Find Deal
Mon, Sep 22 - Wed, Oct 8
British Airways Logo
7:25 pm - 5:55 pmPDX-LIS
14h 30m1 stop
British Airways Logo
6:35 am - 10:52 pmLIS-PDX
24h 17m2 stops
$749British Airways
Find Deal
Mon, Sep 22 - Wed, Oct 8
KLM Logo
1:15 pm - 6:40 pmPDX-LIS
21h 25m1 stop
KLM Logo
5:00 am - 11:20 amLIS-PDX
14h 20m1 stop
$789KLM
Find Deal
Wed, May 7 - Wed, May 14
American Airlines Logo
7:25 pm - 11:10 pmPDX-LIS
19h 45m1 stop
American Airlines Logo
11:05 am - 10:06 pmLIS-PDX
19h 01m1 stop
$966American Airlines
Find Deal
Mon, Jun 30 - Wed, Jul 9
American Airlines Logo
7:25 pm - 11:10 pmPDX-LIS
19h 45m1 stop
American Airlines Logo
11:05 am - 11:22 pmLIS-PDX
20h 17m2 stops
$971American Airlines
Find Deal
Mon, Jun 30 - Wed, Jul 9

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets
British Airways
Sep 22
PDX7:25 pmPortland
14h 30m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Oct 8
LIS6:35 amLisbon Humberto Delgado
24h 17m
2 stops
PDX10:52 pmPortland
British Airways
Sep 22
PDX7:25 pmPortland
14h 30m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Oct 8
LIS6:35 amLisbon Humberto Delgado
24h 17m
2 stops
PDX10:52 pmPortland
British Airways
Sep 22
PDX7:25 pmPortland
14h 30m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Oct 8
LIS7:20 amLisbon Humberto Delgado
18h 15m
1 stop
PDX5:35 pmPortland

Finnair flights from Portland to Lisbon

Our best Finnair deals on Portland to Lisbon flight tickets
Finnair
Oct 19
PDX7:25 pmPortland
19h 40m
1 stop
LIS11:05 pmLisbon Humberto Delgado
Oct 27
LIS6:30 amLisbon Humberto Delgado
45h 25m
2 stops
PDX8:55 pmPortland
Finnair
Sep 2
PDX7:59 amPortland
23h 31m
2 stops
LIS3:30 pmLisbon Humberto Delgado
Oct 6
LIS4:30 pmLisbon Humberto Delgado
34h 08m
2 stops
PDX6:38 pmPortland

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 $607. 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 $647.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $864. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Lisbon for around $1,041.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the afternoon when flights can be purchased for as low as $622. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $981 on average. Flights to Lisbon from Portland in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 10 weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $935 when searching 10 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 $784 on momondo.

How have Portland to Lisbon flight prices changed over time?

As of April 2025, prices for Portland to Lisbon flights are approximately 34% 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

Best Price Found

$338

Fastest flight time

13h 40m

Direct flights

None

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Portland in the past 72 hours is $338. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $624.
The fastest flight from Portland to Lisbon takes 13h 40m
There are no direct flights from Portland to Lisbon. Popular non-direct route for this connection is Portland Airport - Lisbon Humberto Delgado Airport.
There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

  • 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 13h 40m, 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 $434Free CancellationRating
7.0
484 reviews
Search Icelandair flights
LufthansaPriceFrom $554Free CancellationRating
6.7
7,029 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $563Free CancellationRating
7.3
1,345 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $569Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
British AirwaysPriceFrom $572Free CancellationRating
6.6
6,806 reviews
Search British Airways flights
Air CanadaPriceFrom $586Free CancellationRating
7.0
9,197 reviews
Search Air Canada flights
KLMPriceFrom $587Free CancellationRating
7.8
1,333 reviews
Search KLM flights
DeltaPriceFrom $588Free CancellationRating
8.0
7,920 reviews
Search Delta flights
Virgin AtlanticPriceFrom $595Free CancellationRating
7.4
642 reviews
Search Virgin Atlantic flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Nazaré
Almada
Ericeira
Setúbal
Oeiras
Evora
Óbidos
Estoril
Tomar
Peniche
Figueira da Foz
Torres Vedras
Batalha
Caldas da Rainha
Sesimbra
Leiria
Comporta
Sines

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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