What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Portugal?

British Airways, Delta, and KLM are the most popular carriers operating from Cincinnati Cinci./N. Kentucky 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 Cincinnati 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.

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal?

Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal are updated daily.

How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal?

As of September 2026, there are 5 operators available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal.

How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Portugal?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$318 Cheap Flights from Cincinnati to Portugal in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cincinnati to Portugal

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 pm - 2:50 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 10m2 stops Toronto Pearson Intl Frankfurt am Main

5:00 am - 6:00 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

18h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$687Air Canada

Wed, Nov 11 - Wed, Nov 18

7:44 pm - 10:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

10h 36m1 stop Washington, D.C. Dulles Intl

5:00 am - 5:25 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$700Lufthansa

Mon, Oct 26 - Thu, Nov 5

8:50 pm - 2:50 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

13h 00m1 stop London Heathrow

11:05 am - 9:59 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 54m1 stop Philadelphia

$703British Airways

Tue, Jan 5 - Tue, Jan 19

10:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 4:09 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 14m1 stop Paris Charles de Gaulle

$704Delta

Tue, Oct 27 - Thu, Nov 5

9:10 pm - 10:00 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 4:09 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 14m1 stop Paris Charles de Gaulle

$704Air France

Tue, Nov 10 - Tue, Nov 17

8:55 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 35m1 stop Newark

6:00 am - 9:20 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

32h 20m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Mon, Nov 9 - Tue, Nov 24

8:55 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

19h 35m1 stop Newark

6:00 am - 6:59 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

17h 59m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$706United Airlines

Tue, Nov 10 - Tue, Nov 17

3:00 pm - 9:00 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

14h 00m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

5:30 am - 4:09 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 39m1 stop Paris Charles de Gaulle

$708Delta

Mon, Oct 26 - Thu, Nov 5

6:14 pm - 8:00 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

9h 46m1 stop New York John F Kennedy Intl

5:30 am - 4:09 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 39m1 stop Paris Charles de Gaulle

$708Air France

Mon, Oct 26 - Thu, Nov 5

8:50 pm - 9:45 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

31h 55m1 stop London Heathrow

11:05 am - 10:36 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

16h 31m1 stop Philadelphia

$724British Airways

Sun, Dec 13 - Wed, Dec 23

Cheap last minute flights

Enter your travel dates to find the best prices.

6:06 pm - 5:50 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 44m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:30 am - 5:00 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 30m1 stop Paris Charles de Gaulle

$962Delta

Mon, Oct 5 - Tue, Mar 16

10:00 am - 8:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

17h 50m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 7:36 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

18h 36m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$965Delta

Mon, Oct 5 - Tue, Mar 16

7:47 pm - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

9h 43m1 stop Washington, D.C. Dulles Intl

10:15 am - 6:12 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

11h 57m1 stop Newark

$1,004United Airlines

Mon, Oct 5 - Tue, Mar 16

1:55 pm - 9:35 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

14h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

2:40 pm - 6:00 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

31h 20m3 stops London Heathrow Vienna Intl Toronto Pearson Intl

$1,265Multiple Airlines

Mon, Oct 5 - Tue, Mar 16

11:04 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

17h 01m1 stop Philadelphia

11:05 am - 7:39 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 34m1 stop Philadelphia

$1,599American Airlines

Thu, Oct 1 - Sat, Oct 3

11:48 am - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

17h 42m2 stops Newark Washington, D.C. Dulles Intl

10:25 am - 11:59 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

18h 34m2 stops Newark Chicago O'Hare Intl

$1,607United Airlines

Thu, Oct 1 - Sat, Oct 3

10:50 am - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 40m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:25 am - 11:19 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 54m1 stop Newark

$1,607United Airlines

Thu, Oct 1 - Sat, Oct 3

1:55 pm - 1:40 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 45m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

7:40 am - 11:38 amLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

32h 58m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson

$1,789Multiple Airlines

Thu, Oct 1 - Sat, Oct 3

11:58 am - 11:10 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

30h 12m2 stops Chicago O'Hare Intl London Heathrow

6:45 pm - 5:49 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

28h 04m2 stops London Heathrow New York John F Kennedy Intl

$9,230British Airways

Mon, Oct 5 - Wed, Oct 14

11:58 am - 11:10 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

30h 12m2 stops Chicago O'Hare Intl London Heathrow

6:45 pm - 5:49 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

28h 04m2 stops London Heathrow New York John F Kennedy Intl

$9,231British Airways

Mon, Oct 5 - Wed, Oct 14

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Air Canada flights from Cincinnati to Portugal

Our best Air Canada deals on Cincinnati to Portugal flight tickets

Air Canada

Nov 11

CVG6:40 pmCincinnati Cinci./N. Kentucky

15h 10m

2 stops

LIS2:50 pmLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

18h 00m

2 stops

CVG6:00 pmCincinnati Cinci./N. Kentucky

$687

Air Canada

Oct 28

CVG6:24 pmCincinnati Cinci./N. Kentucky

34h 56m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 6

LIS11:20 amLisbon Humberto Delgado

32h 01m

2 stops

CVG2:21 pmCincinnati Cinci./N. Kentucky

$779

Air Canada

Oct 12

CVG1:55 pmCincinnati Cinci./N. Kentucky

14h 25m

1 stop

LIS9:20 amLisbon Humberto Delgado

Oct 13

LIS1:00 pmLisbon Humberto Delgado

36h 30m

2 stops

CVG8:30 pmCincinnati Cinci./N. Kentucky

$1,739

Lufthansa flights from Cincinnati to Portugal

Our best Lufthansa deals on Cincinnati to Portugal flight tickets

Lufthansa

Oct 26

CVG7:44 pmCincinnati Cinci./N. Kentucky

10h 36m

1 stop

LIS10:20 amLisbon Humberto Delgado

Nov 5

LIS5:00 amLisbon Humberto Delgado

17h 25m

2 stops

CVG5:25 pmCincinnati Cinci./N. Kentucky

$700

Lufthansa

Oct 26

CVG1:52 pmCincinnati Cinci./N. Kentucky

29h 38m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Nov 6

LIS5:00 amLisbon Humberto Delgado

23h 54m

2 stops

CVG11:54 pmCincinnati Cinci./N. Kentucky

$725

Lufthansa

Oct 26

CVG6:24 pmCincinnati Cinci./N. Kentucky

25h 06m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Nov 3

LIS6:05 amLisbon Humberto Delgado

22h 54m

2 stops

CVG11:59 pmCincinnati Cinci./N. Kentucky

$727

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 11/11

6:40 pm-2:50 pm

2 stops15h 10m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:00 pm

2 stops18h 00m

$687

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 10/26

7:44 pm-10:20 am

1 stop10h 36m

Lisbon Humberto Delgado

Thu 11/5

5:00 am-5:25 pm

2 stops17h 25m

$700

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Tue 1/5

8:50 pm-2:50 pm

1 stop13h 00m

Lisbon Humberto Delgado

Tue 1/19

11:05 am-9:59 pm

1 stop15h 54m

$703

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Thu 11/5

5:55 am-4:09 pm

1 stop15h 14m

$704

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 11/10

9:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 11/17

5:55 am-4:09 pm

1 stop15h 14m

$704

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 11/9

8:55 am-9:30 am

1 stop19h 35m

Porto

Tue 11/24

6:00 am-9:20 am

2 stops32h 20m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 11/10

8:55 am-9:30 am

1 stop19h 35m

Porto

Tue 11/17

6:00 am-6:59 pm

2 stops17h 59m

$706

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 10/26

3:00 pm-9:00 am

2 stops14h 00m

Lisbon Humberto Delgado

Thu 11/5

5:30 am-4:09 pm

1 stop15h 39m

$708

Quickest round-trip

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 10/26

6:14 pm-8:00 am

1 stop9h 46m

Lisbon Humberto Delgado

Thu 11/5

5:30 am-4:09 pm

1 stop15h 39m

$708

CincinnatiLisbon

CVG Cincinnati Cinci./N. Kentucky - LIS Lisbon Humberto Delgado

CVGLIS

Cincinnati Cinci./N. Kentucky

Sun 12/13

8:50 pm-9:45 am

1 stop31h 55m

Lisbon Humberto Delgado

Wed 12/23

11:05 am-10:36 pm

1 stop16h 31m

$724

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cincinnati 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

Prices

Airlines

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Cincinnati is in March. 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 March, then book flights to Portugal from Cincinnati during February instead. Flights to Portugal in February, while not as cheap as those in March, still average around $708.

How far in advance should I book a flight from Cincinnati to Portugal?

You are more likely to see cheaper flights to Portugal from Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $928 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Cincinnati for as low as $609 on momondo.

Cheap Cincinnati to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cincinnati to Portugal

Best Price Found	$318
Fastest flight time	10h 36m
Direct flights	None

The best one-way flight to Portugal from Cincinnati in the past 72 hours is $318. The best round-trip flight deal from Cincinnati to Portugal found on momondo in the last 72 hours is $687.

The fastest flight from Cincinnati to Portugal takes 10h 36m

There are no direct flights from Cincinnati to Portugal. There are no popular flight routes from Cincinnati to Portugal.

Search flight deals

Frequently asked questions about flying from Cincinnati to Portugal

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal?
Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal are updated daily.
How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal?
As of September 2026, there are 5 operators available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Portugal.
How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Portugal?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Cincinnati to Portugal

Compare and see reviews for airlines that fly from Cincinnati to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Air France	PriceFrom $493	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 8,239 reviews	Search British Airways flights
Delta	PriceFrom $507	Free Cancellation	Rating 7.8 8,611 reviews	Search Delta flights
United Airlines	PriceFrom $531	Free Cancellation	Rating 7.4 10,251 reviews	Search United Airlines flights
American Airlines	PriceFrom $719	Free Cancellation	Rating 7.0 12,099 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Cincinnati to Portugal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Cincinnati to Portugal. momondo saves you time and could save you money on your trip.

Can I find flights from Cincinnati to Portugal with flexible booking policies on momondo?

Flights from Cincinnati 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 Cincinnati to Portugal?

Once you have performed a search for Cincinnati to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Portugal from Cincinnati are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal trip

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Popular cities

Other flights from Cincinnati

Other flights to Portugal

Airlines

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $397

Flights to Portofrom $403

Flights to Funchalfrom $403

Flights to Farofrom $403

Flights to Ponta Delgadafrom $406

Flights to Lajesfrom $556

Flights to Hortafrom $743

Flights to Pico Islandfrom $577

Flights to Porto Santofrom $883

Flights to Velasfrom $578

Cheap flights from Cincinnati to Portugal from $318

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to Portugal departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Cincinnati to Portugal

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Cheap last minute flights

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Air Canada flights from Cincinnati to Portugal

Our best Air Canada deals on Cincinnati to Portugal flight tickets

Lufthansa flights from Cincinnati to Portugal

Our best Lufthansa deals on Cincinnati to Portugal flight tickets

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Use the filters below to find and compare flights from Cincinnati to Portugal that are best for you.

See travel insights to Portugal from

How to get the cheapest flight ticket from Cincinnati to Portugal

What is the cheapest month to fly to Portugal?

How far in advance should I book a flight from Cincinnati to Portugal?

What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Portugal?

What airlines fly to Portugal?

Cheap Cincinnati to Portugal flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Cincinnati to Portugal

Best airlines flying from Cincinnati to Portugal

Compare and see reviews for airlines that fly from Cincinnati to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Cincinnati flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year