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.
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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.
What is the cheapest airline that flies from Portland to Lisbon Humberto Delgado?
TAP AIR PORTUGAL, Icelandair, and British Airways are the most popular carriers operating from Portland to Lisbon Humberto Delgado
What airlines fly to Lisbon?
British Airways, Delta and United Airlines 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 39% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 11 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.
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
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?
The number of operators available for flights from Portland Airport to Lisbon Humberto Delgado Airport is 11 as of June 2025.
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 32% of all bookings. The subsequent popular airlines are Delta at 19%, United Airlines at 17%, and KLM at 15%.
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 $434 | Free Cancellation | Rating 7.0 502 reviews | |||
| PriceFrom $554 | Free Cancellation | Rating 6.7 7,156 reviews | |||
| PriceFrom $563 | Free Cancellation | Rating 7.3 1,393 reviews | |||
| PriceFrom $564 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $571 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $573 | Free Cancellation | Rating 6.6 7,031 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 7.8 1,363 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $595 | Free Cancellation | Rating 7.4 653 reviews | |||
| PriceFrom $602 | Free Cancellation | Rating 7.1 9,568 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.