Cheap flights from Portland to Lisbon from $329
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 2/8. 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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Fly from
Fly to
Route
Depart
Return
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 12/5
7:10 am-8:00 am
1 stop16h 50m
Lisbon Humberto Delgado
Sat 12/12
10:00 am-10:18 pm
1 stop20h 18m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 12/5
7:10 am-8:00 am
1 stop16h 50m
Lisbon Humberto Delgado
Sun 12/13
10:00 am-10:18 pm
1 stop20h 18m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 12/5
5:45 am-8:00 am
2 stops18h 15m
Lisbon Humberto Delgado
Sun 12/13
11:15 am-10:07 pm
2 stops18h 52m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sun 12/13
1:40 pm-2:40 pm
1 stop17h 00m
Lisbon Humberto Delgado
Thu 12/24
10:00 am-8:12 pm
1 stop18h 12m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sun 2/14
3:15 pm-10:40 am
2 stops35h 25m
Lisbon Humberto Delgado
Fri 2/19
10:55 am-7:17 pm
2 stops40h 22m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 3/13
10:00 am-6:55 am
2 stops36h 55m
Lisbon Humberto Delgado
Thu 3/25
8:55 am-7:17 pm
2 stops41h 22m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sun 2/14
1:20 pm-2:40 pm
1 stop17h 20m
Lisbon Humberto Delgado
Fri 2/19
5:00 am-11:20 am
1 stop14h 20m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Tue 1/5
1:38 pm-3:10 pm
2 stops17h 32m
Lisbon Humberto Delgado
Fri 1/15
5:00 am-11:20 am
1 stop14h 20m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sun 2/14
4:05 pm-8:10 am
3 stops32h 05m
Lisbon Humberto Delgado
Thu 2/18
8:55 am-10:08 pm
2 stops45h 13m
PortlandLisbon
PDX Portland - LIS Lisbon Humberto Delgado
PDXLIS
Portland
Sat 2/13
10:56 pm-8:10 am
1 stop25h 14m
Lisbon Humberto Delgado
Tue 3/2
12:50 pm-7:17 pm
2 stops38h 27m
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?
Prices are currently typical for flights on this route.
Typical prices usually range from $708 to $961.The lowest price recently found on this route was $715.
What is the cheapest month to fly to Lisbon?
In general, February 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 $598. If you are unable to visit Lisbon during the month of February, then departing from Portland during the month April is also very affordable. Most momondo users find prices during this month for around $651.
How far in advance should I book a flight from Portland 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 $879 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 $745 on momondo.
Can stopping save me money on Portland to Lisbon flights?
You could potentially save up to 11% 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 October 2026, prices for Portland to Lisbon flights are approximately 5% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Portland to Lisbon Humberto Delgado?
Icelandair is the most popular carrier operating from Portland to Lisbon Humberto Delgado
What airlines fly to Lisbon?
British Airways, KLM and Delta are the top three most popular airlines that fly to Lisbon from Portland according to our data. British Airways is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 8 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Portland and Lisbon?
Amsterdam (AMS) was the most common stop: 49% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Portland to Lisbon?
Flights via Reykjavik (KEF) offer the lowest average round-trip price of $382.
Which layover airport has the shortest travel time from Portland to Lisbon?
Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 22m.
Which layover airport has the shortest connection time from Portland to Lisbon?
London (LHR) has the shortest average layover time for this route: 2h 08m.
When to book flights from Portland to Lisbon
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
Frequently asked questions about flying from Portland to Lisbon
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 50m, 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?
The number of operators available for flights from Portland Airport to Lisbon Humberto Delgado Airport is 8 as of October 2026.
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?
momondo data reveals that the most frequently booked airline on the route from Portland to Lisbon is British Airways, representing 45% of all bookings. The subsequent popular airlines are KLM at 19%, Delta at 17%, and United Airlines at 11%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $318 | Free Cancellation | Rating 7.5 694 reviews | |||
| PriceFrom $360 | Free Cancellation | Rating 6.9 758 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.8 1,580 reviews | |||
| PriceFrom $492 | Free Cancellation | Rating 7.8 8,651 reviews | |||
| PriceFrom $501 | Free Cancellation | Rating 6.8 8,269 reviews | |||
| PriceFrom $508 | Free Cancellation | Rating 6.7 8,255 reviews | |||
| PriceFrom $549 | Free Cancellation | Rating 7.4 10,331 reviews | |||
| PriceFrom $576 | Free Cancellation | Rating 7.1 11,748 reviews |
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsWhy 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.