Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Lisbon from $335

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 7/14. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
7:25 pm - 5:55 pmPDX-LIS
14h 30m1 stop
6:45 pm - 11:02 pmLIS-PDX
36h 17m2 stops
$764British Airways
Find Deal
mié., abr. 9 - lun., abr. 28
7:25 pm - 10:05 amPDX-LIS
30h 40m1 stop
4:25 pm - 6:41 pmLIS-PDX
34h 16m2 stops
$777British Airways
Find Deal
dom., may. 11 - sáb., may. 17
5:26 am - 11:00 pmPDX-LIS
33h 34m2 stops
4:25 pm - 6:41 pmLIS-PDX
34h 16m2 stops
$782British Airways
Find Deal
dom., may. 11 - sáb., may. 17
9:59 am - 8:20 amPDX-LIS
14h 21m1 stop
11:25 am - 1:15 pmLIS-PDX
33h 50m2 stops
$788United Airlines
Find Deal
mié., ago. 13 - mié., ago. 27
10:55 am - 10:30 amPDX-LIS
15h 35m2 stops
11:25 am - 1:15 pmLIS-PDX
33h 50m2 stops
$793United Airlines
Find Deal
mié., ago. 13 - mié., ago. 27
3:25 pm - 9:20 amPDX-LIS
33h 55m2 stops
12:55 pm - 3:14 pmLIS-PDX
34h 19m2 stops
$975Air Canada
Find Deal
sáb., jul. 26 - vie., ago. 8
3:25 pm - 3:25 pmPDX-LIS
40h 00m2 stops
12:55 pm - 8:47 pmLIS-PDX
39h 52m2 stops
$998Air Canada
Find Deal
mar., may. 6 - jue., may. 29
1:15 pm - 10:50 pmPDX-LIS
25h 35m1 stop
7:30 pm - 11:20 amLIS-PDX
23h 50m1 stop
$1,009KLM
Find Deal
mié., may. 7 - mar., may. 27
6:40 am - 5:55 pmPDX-LIS
27h 15m2 stops
10:00 am - 11:15 pmLIS-PDX
21h 15m1 stop
$1,014Delta
Find Deal
mié., may. 7 - vie., may. 30
7:00 am - 5:50 pmPDX-LIS
26h 50m2 stops
10:00 am - 8:30 amLIS-PDX
30h 30m2 stops
$1,018Delta
Find Deal
mar., may. 6 - vie., may. 30

British Airways flights from Portland to Lisbon

Our best British Airways deals on Portland to Lisbon flight tickets
British Airways
Apr 9
PDX7:25 pmPortland
14h 30m
1 stop
LIS5:55 pmLisbon Humberto Delgado
Apr 28
LIS6:45 pmLisbon Humberto Delgado
36h 17m
2 stops
PDX11:02 pmPortland
British Airways
May 11
PDX7:25 pmPortland
30h 40m
1 stop
LIS10:05 amLisbon Humberto Delgado
May 17
LIS4:25 pmLisbon Humberto Delgado
34h 16m
2 stops
PDX6:41 pmPortland
British Airways
May 11
PDX5:26 amPortland
33h 34m
2 stops
LIS11:00 pmLisbon Humberto Delgado
May 17
LIS4:25 pmLisbon Humberto Delgado
34h 16m
2 stops
PDX6:41 pmPortland

Finnair flights from Portland to Lisbon

Our best Finnair deals on Portland to Lisbon flight tickets
Finnair
Sep 17
PDX8:01 amPortland
31h 09m
2 stops
LIS11:10 pmLisbon Humberto Delgado
Sep 25
LIS4:30 pmLisbon Humberto Delgado
34h 03m
2 stops
PDX6:33 pmPortland
Finnair
Apr 23
PDX7:35 amPortland
31h 35m
2 stops
LIS11:10 pmLisbon Humberto Delgado
Apr 30
LIS7:20 amLisbon Humberto Delgado
23h 42m
2 stops
PDX11:02 pmPortland
Finnair
Apr 4
PDX7:25 pmPortland
19h 45m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Apr 12
LIS7:10 amLisbon Humberto Delgado
18h 25m
1 stop
PDX5:35 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 $625. 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 $947 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 $797 on momondo.

How have Portland to Lisbon flight prices changed over time?

As of March 2025, prices for Portland to Lisbon flights are approximately 71% 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

Best Price Found

$335

Fastest flight time

14h 20m

Direct flights

None

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Portland in the past 72 hours is $335. The best round-trip flight deal from Portland to Lisbon found on momondo in the last 72 hours is $764.
The fastest flight from Portland to Lisbon takes 14h 20m
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 14h 20m, 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
474 reviews
Search Icelandair flights
LufthansaPriceFrom $554Free CancellationRating
6.7
6,956 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $563Free CancellationRating
7.3
1,325 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $570Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights
British AirwaysPriceFrom $572Free CancellationRating
6.6
6,712 reviews
Search British Airways flights
Air CanadaPriceFrom $586Free CancellationRating
7.0
8,986 reviews
Search Air Canada flights
KLMPriceFrom $591Free CancellationRating
7.8
1,321 reviews
Search KLM flights
DeltaPriceFrom $594Free CancellationRating
8.0
7,895 reviews
Search Delta flights
Virgin AtlanticPriceFrom $595Free CancellationRating
7.4
634 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
Peniche
Torres Vedras
Batalha
Figueira da Foz
Caldas da Rainha
Tomar
Leiria
Sesimbra
Comporta
Costa da Caparica

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
mié. 4/2
mié. 4/9

Find better results for your trip to Portugal