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Cheap flights from Kentucky to Porto from $331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to Porto departing on 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Kentucky to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:15 am - 7:00 am
BNA
-
OPO
16h 45m
1 stop
United Airlines Logo
12:45 pm - 12:28 pm
OPO
-
BNA
29h 43m
2 stops
$828United Airlines
Mo, Sep 21 - Mi, Sep 30
United Airlines Logo
8:30 am - 7:00 am
BNA
-
OPO
16h 30m
2 stops
United Airlines Logo
12:45 pm - 12:28 pm
OPO
-
BNA
29h 43m
2 stops
$832United Airlines
Mo, Sep 21 - Mi, Sep 30
Multiple Airlines Logo
8:15 am - 7:00 am
BNA
-
OPO
16h 45m
1 stop
Multiple Airlines Logo
6:00 am - 8:54 pm
OPO
-
BNA
20h 54m
2 stops
$833Multiple Airlines
Mo, Sep 21 - Mi, Sep 30
Multiple Airlines Logo
9:47 am - 7:00 am
BNA
-
OPO
15h 13m
2 stops
Multiple Airlines Logo
6:00 am - 8:54 pm
OPO
-
BNA
20h 54m
2 stops
$837Multiple Airlines
Mo, Sep 21 - Mi, Sep 30
United Airlines Logo
8:15 am - 7:00 am
BNA
-
OPO
16h 45m
1 stop
United Airlines Logo
12:45 pm - 8:54 pm
OPO
-
BNA
14h 09m
1 stop
$841United Airlines
Mo, Sep 21 - Mi, Sep 30
Multiple Airlines Logo
6:35 pm - 7:00 am
BNA
-
OPO
30h 25m
2 stops
Multiple Airlines Logo
6:00 am - 8:54 pm
OPO
-
BNA
20h 54m
2 stops
$842Multiple Airlines
Mo, Sep 21 - Mi, Sep 30
American Airlines Logo
2:59 pm - 11:45 am
CVG
-
OPO
15h 46m
2 stops
American Airlines Logo
12:25 pm - 12:59 am
OPO
-
CVG
17h 34m
2 stops
$857American Airlines
Di, Aug 18 - Mi, Sep 2
Delta Logo
2:15 pm - 10:25 am
BNA
-
OPO
14h 10m
1 stop
Delta Logo
12:25 pm - 8:46 pm
OPO
-
BNA
14h 21m
1 stop
$909Delta
So, Sep 20 - So, Okt 4
Iberia Logo
3:38 pm - 11:45 am
CVG
-
OPO
15h 07m
2 stops
Iberia Logo
8:40 pm - 9:05 pm
OPO
-
CVG
29h 25m
2 stops
$1,008Iberia
Sa, Sep 19 - Mo, Sep 28
Delta Logo
7:52 pm - 6:20 pm
CVG
-
OPO
17h 28m
2 stops
Delta Logo
5:55 am - 3:05 pm
OPO
-
CVG
14h 10m
1 stop
$1,018Delta
Di, Mai 19 - So, Mai 24

United Airlines flights from Kentucky to Porto

Our best United Airlines deals on Kentucky to Porto flight tickets
United Airlines
Sep 21
BNA8:15 amNashville Intl
16h 45m
1 stop
OPO7:00 amPorto
Sep 30
OPO12:45 pmPorto
29h 43m
2 stops
BNA12:28 pmNashville Intl
$828
United Airlines
Sep 21
BNA8:30 amNashville Intl
16h 30m
2 stops
OPO7:00 amPorto
Sep 30
OPO12:45 pmPorto
29h 43m
2 stops
BNA12:28 pmNashville Intl
$832
United Airlines
Sep 21
BNA8:15 amNashville Intl
16h 45m
1 stop
OPO7:00 amPorto
Sep 30
OPO12:45 pmPorto
14h 09m
1 stop
BNA8:54 pmNashville Intl
$841

Delta flights from Kentucky to Porto

Our best Delta deals on Kentucky to Porto flight tickets
Delta
Sep 20
BNA2:15 pmNashville Intl
14h 10m
1 stop
OPO10:25 amPorto
Oct 4
OPO12:25 pmPorto
14h 21m
1 stop
BNA8:46 pmNashville Intl
$909
Delta
Sep 19
BNA2:15 pmNashville Intl
14h 05m
1 stop
OPO10:20 amPorto
Oct 4
OPO12:25 pmPorto
14h 21m
1 stop
BNA8:46 pmNashville Intl
$969
Delta
Sep 7
BNA7:00 amNashville Intl
21h 30m
1 stop
OPO10:30 amPorto
Sep 23
OPO5:00 amPorto
18h 02m
2 stops
BNA5:02 pmNashville Intl
$979

momondo Fare Finder

 
Customize your flight search to find flights from Kentucky to Porto 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, momondo users made 832,500 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Kentucky to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

8:15 am-7:00 am

1 stop16h 45m

Porto

Mi 9/30

12:45 pm-12:28 pm

2 stops29h 43m

$828

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

8:30 am-7:00 am

2 stops16h 30m

Porto

Mi 9/30

12:45 pm-12:28 pm

2 stops29h 43m

$832

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

8:15 am-7:00 am

1 stop16h 45m

Porto

Mi 9/30

6:00 am-8:54 pm

2 stops20h 54m

$833

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

9:47 am-7:00 am

2 stops15h 13m

Porto

Mi 9/30

6:00 am-8:54 pm

2 stops20h 54m

$837

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

8:15 am-7:00 am

1 stop16h 45m

Porto

Mi 9/30

12:45 pm-8:54 pm

1 stop14h 09m

$841

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mo 9/21

6:35 pm-7:00 am

2 stops30h 25m

Porto

Mi 9/30

6:00 am-8:54 pm

2 stops20h 54m

$842

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Di 8/18

2:59 pm-11:45 am

2 stops15h 46m

Porto

Mi 9/2

12:25 pm-12:59 am

2 stops17h 34m

$857
Quickest round-trip

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

So 9/20

2:15 pm-10:25 am

1 stop14h 10m

Porto

So 10/4

12:25 pm-8:46 pm

1 stop14h 21m

$909

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Sa 9/19

3:38 pm-11:45 am

2 stops15h 07m

Porto

Mo 9/28

8:40 pm-9:05 pm

2 stops29h 25m

$1,008

CincinnatiPorto

CVG - OPO

CVGOPO

Cincinnati Cinci./N. Kentucky

Di 5/19

7:52 pm-6:20 pm

2 stops17h 28m

Porto

So 5/24

5:55 am-3:05 pm

1 stop14h 10m

$1,018

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Kentucky to Porto

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

Can stopping save me money on Kentucky to Porto flights?

You could potentially save up to 36% on your flight if you consider stops on a Kentucky to Porto flight.

Cheap Kentucky to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kentucky to Porto

Fastest flight time

11h 20m

Direct flights

None
The fastest flight from Kentucky to Porto takes 11h 20m
There are no direct flights from Kentucky to Porto. There are no popular flight routes from Kentucky to Porto.
Search flight deals

Frequently asked questions about flying from Kentucky to Porto

  • When did momondo last update prices for flights from Kentucky to Porto Airport?

    Prices for flights from Kentucky to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Kentucky to Porto Airport?

  • How old do you have to be to fly from Kentucky to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Kentucky to Porto?

Finding the right flight to Porto from Kentucky 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 Porto quick and easy, saving you time and money.

Can I find flights from Kentucky to Porto with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Kentucky to Porto flights to just show those with flexible booking policies.

How can momondo help me find flights from Kentucky to Porto?

momondo provides multiple filters to help you find the best flight to Porto from Kentucky. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Kentucky to Porto right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Kentucky to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.

An easier way to manage your Porto trip

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Mo 5/18
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