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Cheap flights from Portland to Lisbon from $300

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 9/27. 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

 Logo
6:15 am - 6:20 pmPDX-LIS
28h 05m3 stops
 Logo
7:10 pm - 11:01 pmLIS-PDX
35h 51m3 stops
Sun, Oct 5 - Tue, Oct 14
Air Canada Logo
7:05 pm - 9:20 amPDX-LIS
30h 15m2 stops
Air Canada Logo
11:00 am - 6:20 pmLIS-PDX
39h 20m2 stops
$575Air Canada
Find Deal
Mon, Dec 1 - Thu, Dec 11
United Airlines Logo
6:00 am - 9:20 amPDX-LIS
19h 20m2 stops
United Airlines Logo
11:00 am - 10:13 pmLIS-PDX
43h 13m2 stops
$579United Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 9
Air Canada Logo
3:25 pm - 9:20 amPDX-LIS
33h 55m2 stops
Air Canada Logo
5:00 am - 9:34 amLIS-PDX
36h 34m2 stops
$582Air Canada
Find Deal
Mon, Nov 3 - Thu, Nov 13
United Airlines Logo
10:56 pm - 9:20 amPDX-LIS
26h 24m2 stops
United Airlines Logo
11:00 am - 6:36 pmLIS-PDX
39h 36m3 stops
$589United Airlines
Find Deal
Wed, Dec 3 - Fri, Jan 16
British Airways Logo
2:16 pm - 5:45 pmPDX-LIS
19h 29m2 stops
British Airways Logo
6:35 pm - 4:35 pmLIS-PDX
30h 00m1 stop
$648British Airways
Find Deal
Tue, Nov 4 - Thu, Nov 13
British Airways Logo
7:30 pm - 9:50 pmPDX-LIS
19h 20m1 stop
British Airways Logo
7:05 am - 4:35 pmLIS-PDX
17h 30m1 stop
$649British Airways
Find Deal
Wed, Oct 29 - Fri, Nov 14
Delta Logo
12:40 am - 8:00 amPDX-LIS
24h 20m2 stops
Delta Logo
11:15 am - 9:54 pmLIS-PDX
18h 39m2 stops
$678Delta
Find Deal
Tue, Oct 28 - Wed, Nov 12
Delta Logo
12:40 am - 8:00 amPDX-LIS
23h 20m2 stops
Delta Logo
12:45 pm - 11:52 pmLIS-PDX
19h 07m2 stops
$711Delta
Find Deal
Sun, Jul 27 - Thu, Aug 28
KLM Logo
7:00 am - 8:00 amPDX-LIS
17h 00m1 stop
KLM Logo
9:20 am - 11:20 amLIS-PDX
34h 00m1 stop
$758KLM
Find Deal
Tue, Sep 16 - Tue, Sep 30

Air Canada flights from Portland to Lisbon

Our best Air Canada deals on Portland to Lisbon flight tickets
Air Canada
Dec 1
PDX7:05 pmPortland
30h 15m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 11
LIS11:00 amLisbon Humberto Delgado
39h 20m
2 stops
PDX6:20 pmPortland
Air Canada
Nov 3
PDX3:25 pmPortland
33h 55m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 13
LIS5:00 amLisbon Humberto Delgado
36h 34m
2 stops
PDX9:34 amPortland
Air Canada
Nov 3
PDX3:25 pmPortland
33h 55m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 10
LIS5:00 amLisbon Humberto Delgado
21h 24m
2 stops
PDX6:24 pmPortland

United Airlines flights from Portland to Lisbon

Our best United Airlines deals on Portland to Lisbon flight tickets
United Airlines
Nov 25
PDX6:00 amPortland
19h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 9
LIS11:00 amLisbon Humberto Delgado
43h 13m
2 stops
PDX10:13 pmPortland
United Airlines
Dec 3
PDX10:56 pmPortland
26h 24m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 16
LIS11:00 amLisbon Humberto Delgado
39h 36m
3 stops
PDX6:36 pmPortland
United Airlines
Nov 4
PDX8:30 amPortland
15h 40m
2 stops
LIS8:10 amLisbon Humberto Delgado
Nov 13
LIS10:15 amLisbon Humberto Delgado
20h 18m
2 stops
PDX10:33 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 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 $604. 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 weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $935 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 $758 on momondo.

Can stopping save me money on Portland to Lisbon flights?

You could potentially save up to 2% 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 June 2025, prices for Portland to Lisbon flights are approximately 25% 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

$300

Fastest flight time

13h 49m

Direct flights

None

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Portland in the past 72 hours is $300. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $457.
The fastest flight from Portland to Lisbon takes 13h 49m
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 49m, 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
502 reviews
Search Icelandair flights
LufthansaPriceFrom $554Free CancellationRating
6.7
7,156 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $563Free CancellationRating
7.3
1,393 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $571Free CancellationRating
7.4
8,810 reviews
Search United Airlines flights
British AirwaysPriceFrom $573Free CancellationRating
6.6
7,031 reviews
Search British Airways flights
KLMPriceFrom $584Free CancellationRating
7.8
1,363 reviews
Search KLM flights
DeltaPriceFrom $584Free CancellationRating
8.0
7,964 reviews
Search Delta flights
Virgin AtlanticPriceFrom $595Free CancellationRating
7.4
653 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom $602Free CancellationRating
7.1
9,568 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
Fátima
Nazaré
Almada
Ericeira
Setúbal
Oeiras
Estoril
Evora
Óbidos
Tomar
Batalha
Sesimbra
Leiria
Figueira da Foz
Peniche
Torres Vedras
Comporta
Caldas da Rainha
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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1 adult
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