$379 Cheap Flights from Eureka (ACV) to Lisbon (LIS)

View $379 flight on Mon, Oct 19, 2026Opens in a new window

Popular airlines from Eureka, CA (ACV-Arcata - Eureka) to Humberto Delgado Airport (LIS)

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Cheap Flights from Eureka to Lisbon (ACV-LIS)

Prices were available within the past 7 days and start at $379 for one-way flights and $826 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$826 Roundtrip, found 6 days ago
$826
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $826 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$830 Roundtrip, found 6 days ago
$830
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $830 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$832 Roundtrip, found 6 days ago
$832
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $832 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$836 Roundtrip, found 6 days ago
$836
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $836 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$836 Roundtrip, found 6 days ago
$836
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $836 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$842 Roundtrip, found 6 days ago
$842
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $842 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$843 Roundtrip, found 6 days ago
$843
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $843 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$844 Roundtrip, found 6 days ago
$844
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $844 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$846 Roundtrip, found 6 days ago
$846
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $846 found 6 days ago
United
Mon, Oct 19 - Tue, Oct 27
ACV
Eureka
LIS
Lisbon
$847 Roundtrip, found 6 days ago
$847
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 19 from Eureka to Lisbon, returning Tue, Oct 27, priced at $847 found 6 days ago

Frequently asked questions

How much does a flight from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) cost?
You can find cheap one-way flights from $379 and cheap return flights from $826 ACV to LIS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ACV to LIS ticket fares go up or down.
What is the cheapest month to fly from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
The cheapest month to fly from ACV to LIS is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
Enter ACV to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
United and Alaska Airlines are just some of the carriers that fly from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Arcata - Eureka Airport (ACV) to Humberto Delgado Airport (LIS) usually departs at around 6:00 AM local time, operated by United and Air Canada. This is a seasonal service active in September. An early flight can help you arrive in Lisbon with plenty of time to explore. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
Flying from ACV to LIS with a connection usually takes about 20 hours, traveling roughly 5,575 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
Select the "Business class" and "First class" filters when looking for ACV to LIS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon from Arcata - Eureka (ACV)?
From Arcata - Eureka (ACV), you can fly typically into Humberto Delgado (LIS) to reach Lisbon. Some flights may connect through major hubs like San Francisco Intl. (SFO), Denver Intl. (DEN), Los Angeles Intl. (LAX) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) Lisbon Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado)?
If you booked your Eureka, CA (ACV-Arcata - Eureka) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Arcata - Eureka
Destination airport
Humberto Delgado
Airlines serving
United
Roundtrip price
$826
Distance
5573 mi

Book with confidence

Eureka to Lisbon Flights

The cheapest times to fly from Eureka to Lisbon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Eureka to Lisbon are during the month of October. You can find some of the cheapest flights from Eureka to Lisbon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Eureka to Lisbon

Sunday is one of the best days to book for cheap flights from Eureka to Lisbon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Eureka to Lisbon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Eureka to Lisbon in 2026. You can also book with separate airlines for your outbound and return journeys, from $379 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Eureka to Lisbon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Eureka to Lisbon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Eureka to Lisbon Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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