How does KAYAK find such low prices on flights from Eugene to Portugal?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Eugene to Portugal. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Eugene to Portugal?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Eugene to Portugal is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Eugene to Portugal?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Eugene to Portugal with an airline and back with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Eugene to Portugal?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Eugene to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

What is the cheapest time of day to fly to Portugal?

The cheapest time of day to fly to Portugal is generally in the evening , when round-trip flights cost $879 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,262.

How long does a flight from Eugene to Portugal take?

The duration of a flight to Portugal depends on your arrival airport. The shortest routes to Portugal from Eugene are to Lisbon , which takes 18h 10m , and Porto , which takes 25h 38m.

How long does a flight from Eugene to Portugal take?

The duration of a flight to Portugal depends on your arrival airport. The shortest routes to Portugal from Eugene are to Lisbon , which takes 18h 10m , and Porto , which takes 25h 38m.

$399 CHEAP FLIGHTS from Eugene to Portugal

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Flight Deals

One-wayRound-trip

Lisbon2 stops$489

Porto2 stops$814

Lisbon2 stops$489

Porto2 stops$814

Book Cheap Eugene to Portugal Plane Tickets

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Eugene to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Eugene to Portugal

Wed, Jan 14 - Wed, Jan 21

2:00 pm - 9:20 amEUG-LIS

35h 20m2 stops

11:20 am - 1:07 pmLIS-EUG

33h 47m2 stops

$489United Airlines

Find Deal

Sun, Jan 18 - Sun, Feb 1

2:09 pm - 11:30 pmEUG-LIS

25h 21m2 stops

5:00 am - 11:09 pmLIS-EUG

26h 09m2 stops

$493Lufthansa

Find Deal

Thu, Mar 5 - Fri, Mar 13

2:02 pm - 11:30 pmEUG-LIS

25h 28m2 stops

5:00 am - 10:53 pmLIS-EUG

24h 53m2 stops

$494Lufthansa

Find Deal

Sun, Jan 11 - Mon, Jan 19

2:09 pm - 9:20 amEUG-LIS

35h 11m2 stops

11:20 am - 11:09 pmLIS-EUG

43h 49m2 stops

$496United Airlines

Find Deal

Tue, Jan 13 - Sat, Jan 24

11:25 am - 3:10 pmEUG-LIS

19h 45m2 stops

11:25 am - 11:02 pmLIS-EUG

43h 37m2 stops

$500Delta

Find Deal

Mon, Mar 23 - Thu, Apr 2

5:00 am - 8:10 amEUG-LIS

20h 10m2 stops

6:15 am - 11:20 pmLIS-EUG

25h 05m2 stops

$587United Airlines

Find Deal

Fri, Mar 6 - Mon, Mar 16

6:00 am - 1:20 pmEUG-LIS

47h 20m2 stops

5:00 am - 10:53 pmLIS-EUG

24h 53m2 stops

$592United Airlines

Find Deal

Sat, Jan 17 - Fri, Jan 23

2:09 pm - 1:20 pmEUG-LIS

39h 11m2 stops

2:10 pm - 9:10 pmLIS-EUG

39h 00m2 stops

$605Lufthansa

Find Deal

Wed, Apr 22 - Sat, May 2

7:00 am - 3:40 pmEUG-OPO

48h 40m2 stops

5:55 am - 11:26 pmOPO-EUG

25h 31m2 stops

$908Multiple Airlines

Find Deal

Tue, Apr 21 - Fri, May 1

6:15 am - 3:30 pmEUG-OPO

25h 15m2 stops

5:00 am - 11:54 pmOPO-EUG

26h 54m2 stops

$1,129Multiple Airlines

Find Deal

Booking Insights

KAYAK's insights & trends for Eugene to Portugal flights

Get data-powered insights and trends into flights from Eugene to Portugal to help you find the cheapest flights, the best time to fly and much more.

Airlines

There is just one airline that flies from Eugene to Portugal direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Lisbon (LIS) and costs $744.

Which airlines provide the cheapest flights from Eugene to Portugal?

In the past 3 days, the cheapest round-trip tickets from Eugene to Portugal were found on United Airlines ($489) and Lufthansa ($493).

Find deals

Low season	October
High season	December
Cheapest flight	$399

Best time to beat the crowds with an average 4% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Eugene to Lisbon

How does KAYAK find such low prices on flights from Eugene to Portugal?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Eugene to Portugal.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Eugene to Portugal?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Eugene to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Eugene to Portugal?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Eugene to Portugal with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Eugene to Portugal?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Eugene to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
What is the cheapest time of day to fly to Portugal?
The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $879 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,262.

7.4

United AirlinesOverall score based on 9015 reviews

8.1Crew

7.3Comfort

7.1Entertainment

6.6Food

7.7Boarding

Airline reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

4.0 OkayThomas, Nov 2025SFO - KOA

Read more United Airlines reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Everything you need to know for your flight from Eugene to Portugal

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Popular routes

Information on your arrival and departure airports

Eugene (EUG)

$399 Find Cheap Flights from Eugene to Portugal

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Cheap Flights from Eugene to Portugal

Book Cheap Eugene to Portugal Plane Tickets

Recent round-trip flight deals from Eugene to Portugal

Recent one-way flight deals from Eugene to Portugal

Recent last minute flight deals from Eugene to Portugal

KAYAK's insights & trends for Eugene to Portugal flights

Get data-powered insights and trends into flights from Eugene to Portugal to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Eugene and Portugal?

There is just one airline that flies from Eugene to Portugal direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Lisbon (LIS) and costs $744.

Which airlines provide the cheapest flights from Eugene to Portugal?

In the past 3 days, the cheapest round-trip tickets from Eugene to Portugal were found on United Airlines ($489) and Lufthansa ($493).

How long does a flight from Eugene to Portugal take?

The duration of a flight to Portugal depends on your arrival airport. The shortest routes to Portugal from Eugene are to Lisbon, which takes 18h 10m, and Porto, which takes 25h 38m.

Good to know

FAQs - booking Portugal flights

How does KAYAK find such low prices on flights from Eugene to Portugal?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Eugene to Portugal.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Eugene to Portugal?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Eugene to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Eugene to Portugal?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Eugene to Portugal with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Eugene to Portugal?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Eugene to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

What is the cheapest time of day to fly to Portugal?

Reviews of the top airline flying from Eugene to Portugal

Everything you need to know for your flight from Eugene to Portugal

Information on your arrival and departure airports

Cabin class types available on flights to Portugal

Complete your trip to Portugal with a hotel stay or car rental

Flights to other popular destinations

Flights from other airports in Eugene to Portugal

Flights from Eugene to popular cities in Portugal