Cheap flights from Louisville to Portugal from $432
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Portugal departing on 12/9. 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 to
Route
Depart
Return
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Tue 3/23
7:45 pm-6:55 am
2 stops31h 10m
Lisbon Humberto Delgado
Thu 4/1
11:25 am-10:09 pm
2 stops39h 44m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Sun 11/8
7:47 am-9:05 am
1 stop20h 18m
Lisbon Humberto Delgado
Tue 11/24
8:20 am-9:37 pm
2 stops18h 17m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Sun 11/8
7:55 pm-8:00 am
2 stops31h 05m
Lisbon Humberto Delgado
Tue 11/24
10:00 am-9:13 pm
2 stops40h 13m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Sun 11/8
7:47 am-9:05 am
1 stop20h 18m
Lisbon Humberto Delgado
Tue 11/24
11:05 am-10:30 pm
1 stop16h 25m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Tue 12/1
3:27 pm-12:05 pm
2 stops15h 38m
Lisbon Humberto Delgado
Tue 12/8
11:05 am-10:34 pm
1 stop16h 29m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Tue 12/1
6:15 am-6:55 am
2 stops43h 40m
Lisbon Humberto Delgado
Thu 12/10
8:55 am-7:25 pm
2 stops39h 30m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Wed 12/2
8:45 am-8:10 am
1 stop18h 25m
Lisbon Humberto Delgado
Fri 12/11
5:00 am-9:00 pm
2 stops21h 00m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Wed 12/2
9:55 am-10:20 am
1 stop19h 25m
Lisbon Humberto Delgado
Wed 12/9
5:00 am-9:00 pm
2 stops21h 00m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Wed 12/2
2:55 pm-9:00 am
2 stops13h 05m
Lisbon Humberto Delgado
Tue 12/8
11:15 am-9:17 pm
2 stops15h 02m
LouisvilleLisbon
SDF Louisville Intl - LIS Lisbon Humberto Delgado
SDFLIS
Louisville Intl
Wed 12/2
1:30 pm-9:00 am
1 stop14h 30m
Lisbon Humberto Delgado
Tue 12/8
11:15 am-9:17 pm
2 stops15h 02m
See travel insights to Portugal from
How to get the cheapest flight ticket from Louisville to Portugal
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 cheapest month to fly to Portugal?
The cheapest month to fly to Portugal from Louisville is in April. Flight prices, which tend to average around $651, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Portugal from Louisville during January instead. Flights to Portugal in January, while not as cheap as those in April, still average around $659.
Can stopping save me money on Louisville to Portugal flights?
You could potentially save up to 19% on your flight if you consider stops on a Louisville to Portugal flight.
What is the cheapest airline that flies from Louisville Intl to Portugal?
Aer Lingus, Lufthansa, and Air Canada are the most popular carriers operating from Louisville Intl to Portugal
What airlines fly to Portugal?
United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Portugal from Louisville according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 5 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.
Cheap Louisville to Portugal flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Louisville to Portugal
Frequently asked questions about flying from Louisville to Portugal
When did momondo last update prices for flights from Louisville Intl Airport to Portugal?
Prices for flights from Louisville Intl Airport to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Portugal?
There are 3 operators available for flights from Louisville Intl Airport to Portugal as of October 2026.
How old do you have to be to fly from Louisville Intl Airport to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents you'll need for your trip to Portugal 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 Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Louisville to Portugal
Compare and see reviews for airlines that fly from Louisville to Portugal with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $543 | Free Cancellation | Rating 7.4 10,332 reviews | |||
| PriceFrom $587 | Free Cancellation | Rating 7.8 8,654 reviews | |||
| PriceFrom $606 | Free Cancellation | Rating 7.0 12,152 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Louisville to Portugal?
Finding the right flight to Portugal from Louisville 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 Portugal quick and easy, saving you time and money.
Can I find flights from Louisville to Portugal with flexible booking policies on momondo?
Flights from Louisville to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Louisville to Portugal?
Once all potential Louisville to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Louisville to Portugal right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Louisville and alert you when they change.