$345+ Cheap flights from Louisville (SDF) to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIS
Aug 12 — Aug 191
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Portugal with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Louisville to PortugalExplore the most affordable flight options available from Louisville to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.
Explore the most affordable flight options available from Louisville to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:20 am
SDF
- LIS
1 stop20h 50m
United Airlines
Tue 11/1712:50 pm
LIS
- SDF
2 stops36h 43m
United Airlines
Deal found 7/11![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/41:25 pm
SDF
- LIS
1 stop13h 55m
United Airlines
Tue 10/206:45 am
LIS
- SDF
2 stops31h 52m
United Airlines
Deal found 7/11![United Airlines logo]()
$795
This Expedia deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:59 pm
SDF
- LIS
2 stops41h 06m
Iberia
Tue 10/208:45 pm
LIS
- SDF
2 stops29h 50m
Iberia
Deal found 7/11![Iberia logo]()
$797
This Air Canada deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:25 am
SDF
- LIS
2 stops41h 55m
Air Canada
Thu 11/268:55 am
LIS
- SDF
2 stops43h 33m
Air Canada
Deal found 7/9![Air Canada logo]()
$800
This Air Canada deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:12 pm
SDF
- LIS
2 stops34h 08m
Air Canada
Wed 11/2511:20 am
LIS
- SDF
2 stops40h 10m
Air Canada
Deal found 7/9![Air Canada logo]()
$805
This Gotogate deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:15 am
SDF
- LIS
2 stops23h 05m
Air Canada
Sun 11/2910:40 am
LIS
- SDF
2 stops39h 01m
Air Canada
Deal found 7/8![Air Canada logo]()
$819
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:12 pm
SDF
- LIS
1 stop15h 18m
United Airlines
Sun 11/2910:50 am
LIS
- SDF
2 stops37h 11m
United Airlines
Deal found 7/8![United Airlines logo]()
$821
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:40 pm
SDF
- LIS
2 stops16h 15m
Delta
Mon 10/195:00 am
LIS
- SDF
2 stops19h 01m
Delta
Deal found 7/8![Delta logo]()
$829
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:00 am
SDF
- LIS
2 stops19h 20m
United Airlines
Fri 11/2712:20 pm
LIS
- SDF
1 stop11h 55m
United Airlines
Deal found 7/9![United Airlines logo]()
$839
This Air Canada deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:25 am
SDF
- LIS
3 stops17h 55m
Air Canada
Fri 11/2711:20 am
LIS
- SDF
3 stops27h 23m
Air Canada
Deal found 7/9![Air Canada logo]()
$842
This Air Canada deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:25 am
SDF
- LIS
2 stops17h 55m
Air Canada
Thu 11/268:55 am
LIS
- SDF
2 stops37h 06m
Air Canada
Deal found 7/9![Air Canada logo]()
$844
Best flights from Louisville to PortugalDiscover carefully curated flight deals from Louisville to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 13, 2026.
Discover carefully curated flight deals from Louisville to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 13, 2026.
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:12 pm
SDF
- LIS
1 stop15h 18m
United Airlines
Sun 11/2910:50 am
LIS
- SDF
2 stops37h 11m
United Airlines
Deal found 7/8![United Airlines logo]()
$821
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:20 pm
SDF
- LIS
1 stop13h 25m
Delta
Tue 8/255:00 am
LIS
- SDF
2 stops21h 19m
Delta
Deal found 7/13![Delta logo]()
$908
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:00 am
SDF
- LIS
2 stops19h 20m
United Airlines
Fri 11/2712:20 pm
LIS
- SDF
1 stop11h 55m
United Airlines
Deal found 7/9![United Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:25 pm
SDF
- LIS
1 stop13h 55m
United Airlines
Mon 10/191:00 pm
LIS
- SDF
2 stops33h 40m
United Airlines
Deal found 7/8![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:00 am
SDF
- LIS
2 stops21h 20m
United Airlines
Fri 10/91:00 pm
LIS
- SDF
2 stops33h 40m
United Airlines
Deal found 7/11![United Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:48 pm
SDF
- LIS
1 stop15h 42m
United Airlines
Tue 8/2510:25 am
LIS
- SDF
1 stop17h 34m
United Airlines
Deal found 7/10![United Airlines logo]()
$912
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:25 pm
SDF
- LIS
1 stop13h 55m
United Airlines
Sat 10/2410:25 am
LIS
- SDF
1 stop12h 15m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,008
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:56 pm
SDF
- LIS
1 stop15h 34m
United Airlines
Mon 9/1411:25 am
LIS
- SDF
2 stops34h 52m
United Airlines
Deal found 7/12![United Airlines logo]()
$1,067
Last-minute flights from Louisville to PortugalDiscover last-minute flight deals from Louisville to Portugal. Data last updated July 13, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Portugal. Data last updated July 13, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:22 pm
SDF
- LIS
2 stops15h 53m
Delta
Sun 9/65:00 am
LIS
- SDF
2 stops22h 08m
Delta
Deal found 7/10![Delta logo]()
$1,080
This United deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:00 am
SDF
- LIS
2 stops21h 20m
Multiple Airlines
Tue 8/255:05 am
LIS
- SDF
2 stops19h 02m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$901
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:20 pm
SDF
- LIS
1 stop13h 25m
Delta
Tue 8/255:00 am
LIS
- SDF
2 stops21h 19m
Delta
Deal found 7/13![Delta logo]()
$908
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:48 pm
SDF
- LIS
1 stop15h 42m
United Airlines
Tue 8/2510:25 am
LIS
- SDF
1 stop17h 34m
United Airlines
Deal found 7/10![United Airlines logo]()
$912
This Ovago deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:05 am
SDF
- LIS
1 stop19h 25m
Lufthansa
Tue 8/2510:25 am
LIS
- SDF
1 stop17h 34m
Lufthansa
Deal found 7/13![Lufthansa logo]()
$969
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:34 pm
SDF
- LIS
2 stops19h 21m
Delta
Sun 8/305:00 am
LIS
- SDF
2 stops21h 33m
Delta
Deal found 7/12![Delta logo]()
$1,032
This American Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:32 pm
SDF
- LIS
1 stop15h 33m
American Airlines
Sun 8/3011:05 am
LIS
- SDF
1 stop16h 54m
American Airlines
Deal found 7/12![American Airlines logo]()
$1,039
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:15 pm
SDF
- LIS
2 stops39h 05m
United Airlines
Sat 8/296:15 am
LIS
- SDF
2 stops41h 52m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,020
One-way flights from Louisville to PortugalSearch for one-way flight options from Louisville to Portugal. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
Search for one-way flight options from Louisville to Portugal. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
This American Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:52 pm
SDF
- LIS
2 stops15h 03m
American Airlines
Deal found 7/11![American Airlines logo]()
$345
This TravelUp deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:12 pm
SDF
- LIS
1 stop15h 18m
Lufthansa
Deal found 7/11![Lufthansa logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:25 am
SDF
- LIS
3 stops52h 30m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/27:32 pm
SDF
- LIS
2 stops33h 33m
United Airlines
Deal found 7/10![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:39 pm
SDF
- LIS
2 stops15h 31m
American Airlines
Deal found 7/10![American Airlines logo]()
$395
This TravelUp deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:00 am
SDF
- LIS
1 stop19h 20m
Lufthansa
Deal found 7/10![Lufthansa logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:28 pm
SDF
- LIS
3 stops45h 42m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$442
This oojo deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:30 pm
SDF
- LIS
2 stops16h 15m
British Airways
Deal found 7/8![British Airways logo]()
$446
This TravelUp deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:56 pm
SDF
- LIS
1 stop15h 34m
Lufthansa
Deal found 7/8![Lufthansa logo]()
$461
This Air Canada deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:23 am
SDF
- LIS
3 stops17h 57m
Air Canada
Deal found 7/8![Air Canada logo]()
$475
This Air Canada deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/210:50 am
SDF
- LIS
3 stops17h 05m
Air Canada
Deal found 7/10![Air Canada logo]()
$949
Find flight deals from Louisville to Portugal
Keep the following information in mind while searching for Louisville to Portugal flight deals. Data was last updated July 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $726 (United Airlines) |
One-way from | $345 (American Airlines) |
Popular in | June |
Cheapest in | December |
Average price | $1,217 |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 13, 2026.
Use the filters below to find and compare flights from Louisville to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Tue 10/20
2:12 pm-10:30 am
1 stop15h 18m
Lisbon Humberto Delgado
Sun 11/29
10:50 am-7:01 pm
2 stops37h 11m
$821
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Fri 11/20
9:00 am-9:20 am
2 stops19h 20m
Lisbon Humberto Delgado
Fri 11/27
12:20 pm-7:15 pm
1 stop11h 55m
$839
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Tue 10/13
1:25 pm-8:20 am
1 stop13h 55m
Lisbon Humberto Delgado
Mon 10/19
1:00 pm-5:40 pm
2 stops33h 40m
$846
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Thu 10/1
6:00 am-8:20 am
2 stops21h 20m
Lisbon Humberto Delgado
Fri 10/9
1:00 pm-5:40 pm
2 stops33h 40m
$855
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Sun 8/9
4:20 pm-10:45 am
1 stop13h 25m
Lisbon Humberto Delgado
Tue 8/25
5:00 am-9:19 pm
2 stops21h 19m
$908
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Sun 8/9
1:48 pm-10:30 am
1 stop15h 42m
Lisbon Humberto Delgado
Tue 8/25
10:25 am-10:59 pm
1 stop17h 34m
$912
Quickest round-trip
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Fri 10/16
1:25 pm-8:20 am
1 stop13h 55m
Lisbon Humberto Delgado
Sat 10/24
10:25 am-5:40 pm
1 stop12h 15m
$1,008
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Thu 9/10
1:56 pm-10:30 am
1 stop15h 34m
Lisbon Humberto Delgado
Mon 9/14
11:25 am-5:17 pm
2 stops34h 52m
$1,067
Cheapest one-way
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Mon 10/19
10:25 am-7:55 pm
3 stops52h 30m
$358
LouisvilleLisbon
SDF - LIS
SDFLIS
Louisville Intl
Sat 1/2
7:32 pm-10:05 am
2 stops33h 33m
$365
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Louisville to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Louisville with our price prediction graph.
SDF-LIS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Louisville to Portugal
SDF-PT0
SDF-LIS
What is the cheapest month to book a flight from Louisville to Portugal?
Currently, December is the cheapest month in which you can book a flight from Louisville to Portugal (average of $449). Flying from Louisville to Portugal in June is currently the most expensive (average of $1,052). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated July 13, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Louisville to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Louisville to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to Portugal
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Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Portugal by cabin class
Find flights from Louisville to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Portugal flights
Browse other Louisville and Portugal flight options. Last updated on July 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Louisville to Portugal flights
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Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 3 airlines flying from Louisville to Portugal
Discover the top 3 airlines that operate flights from Louisville to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$543 | Average$958 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$587 | Average$1,187 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$606 | Average$957 | FlexibilityNo cancel fee | On-time71% |