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

Delta, United Airlines, and Air Canada are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Portugal

What airlines fly to Portugal?

United Airlines, American Airlines and British Airways 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 42% 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.

$276 Cheap Flights from Cincinnati to Portugal in 2026

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.

8:50 pm - 9:55 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

20h 05m1 stop London Heathrow

11:05 am - 7:15 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 10m1 stop Philadelphia

$703British Airways

Wed, Jan 27 - Tue, Feb 2

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

$705Delta

Tue, Nov 3 - Thu, Nov 12

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

$705Delta

Tue, Oct 27 - Tue, Nov 10

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

19h 35m1 stop Newark

6:00 am - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Tue, Nov 3 - Thu, Nov 12

11:44 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

17h 46m1 stop Newark

6:00 am - 5:25 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Tue, Oct 27 - Thu, Nov 5

3:36 pm - 12:05 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 29m2 stops Chicago O'Hare Intl London Heathrow

11:05 am - 10:00 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 55m1 stop Philadelphia

$708British Airways

Wed, Jan 27 - Tue, Feb 2

1:05 pm - 11:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

17h 45m2 stops New York John F Kennedy Intl Madrid Barajas

8:45 pm - 4:57 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

25h 12m2 stops Madrid Barajas New York John F Kennedy Intl

$710Iberia

Wed, Jan 27 - Tue, Feb 2

2:34 pm - 11:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 16m2 stops Chicago O'Hare Intl Madrid Barajas

8:45 pm - 7:16 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

27h 31m2 stops Madrid Barajas Chicago O'Hare Intl

$718Iberia

Mon, Nov 9 - Mon, Nov 23

11:03 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

17h 02m1 stop Philadelphia

8:20 am - 7:18 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 58m2 stops Madrid Barajas Chicago O'Hare Intl

$719American Airlines

Wed, Nov 11 - Tue, Nov 17

11:45 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 20m2 stops Chicago O'Hare Intl Philadelphia

8:20 am - 7:18 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 58m2 stops Madrid Barajas Chicago O'Hare Intl

$724American Airlines

Wed, Nov 11 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

11:58 am - 11:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 52m2 stops Chicago O'Hare Intl Madrid Barajas

8:45 pm - 9:05 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

29h 20m2 stops Madrid Barajas Boston Logan Intl

$1,258Iberia

Fri, Sep 11 - Mon, Sep 21

9:15 pm - 11:10 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

20h 55m1 stop London Heathrow

5:10 pm - 3:30 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

27h 20m1 stop London Heathrow

$1,259British Airways

Fri, Sep 11 - Mon, Sep 21

9:15 pm - 11:10 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

20h 55m1 stop London Heathrow

5:10 pm - 6:54 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

30h 44m2 stops London Heathrow Chicago O'Hare Intl

$1,327British Airways

Fri, Sep 11 - Mon, Sep 21

4:30 pm - 9:35 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

24h 05m2 stops Toronto Pearson Intl Dublin

10:00 pm - 9:23 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

28h 23m3 stops Madrid Barajas Halifax Intl Toronto Pearson Intl

$1,342Multiple Airlines

Fri, Sep 11 - Mon, Sep 21

2:55 pm - 12:05 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 10m2 stops Washington, D.C. Dulles Intl Brussels Bruxelles-National

7:20 pm - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

26h 40m2 stops Zurich Chicago O'Hare Intl

$1,354Multiple Airlines

Fri, Sep 11 - Sun, Sep 13

4:53 pm - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

11h 52m1 stop Newark

12:15 pm - 8:30 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

13h 15m1 stop Montreal Pierre Elliott Trudeau Intl

$1,629United Airlines

Fri, Sep 11 - Sun, Sep 13

5:15 pm - 2:55 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 stop Paris Charles de Gaulle

5:35 am - 3:11 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

14h 36m1 stop Paris Charles de Gaulle

$1,841Air France

Mon, Sep 7 - Sun, Sep 13

5:15 pm - 2:55 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 stop Paris Charles de Gaulle

5:35 am - 3:11 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

14h 36m1 stop Paris Charles de Gaulle

$1,842Air France

Mon, Sep 7 - Sun, Sep 13

5:15 pm - 2:55 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 stop Paris Charles de Gaulle

5:35 am - 3:11 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

14h 36m1 stop Paris Charles de Gaulle

$1,843Air France

Mon, Sep 7 - Sun, Sep 13

10:22 am - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

19h 08m1 stop Washington, D.C. Dulles Intl

1:00 pm - 9:23 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 23m1 stop Toronto Pearson Intl

$1,881United Airlines

Mon, Sep 7 - Sun, Sep 13

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Air France flights from Cincinnati to Portugal

Our best Air France deals on Cincinnati to Portugal flight tickets

Air France

Sep 14

CVG6:06 pmCincinnati Cinci./N. Kentucky

11h 24m

1 stop

OPO10:30 amPorto

Sep 24

OPO5:55 amPorto

14h 16m

1 stop

CVG3:11 pmCincinnati Cinci./N. Kentucky

$1,275

Air France

Sep 12

CVG5:49 pmCincinnati Cinci./N. Kentucky

11h 56m

1 stop

LIS10:45 amLisbon Humberto Delgado

Sep 20

LIS5:35 amLisbon Humberto Delgado

14h 36m

1 stop

CVG3:11 pmCincinnati Cinci./N. Kentucky

$1,319

Delta flights from Cincinnati to Portugal

Our best Delta deals on Cincinnati to Portugal flight tickets

Delta

Oct 27

CVG10:10 pmCincinnati Cinci./N. Kentucky

19h 50m

1 stop

OPO10:00 pmPorto

Nov 5

OPO5:55 amPorto

15h 14m

1 stop

CVG4:09 pmCincinnati Cinci./N. Kentucky

$705

Delta

Oct 27

CVG10:10 pmCincinnati Cinci./N. Kentucky

19h 50m

1 stop

OPO10:00 pmPorto

Nov 10

OPO5:00 amPorto

19h 10m

2 stops

CVG7:10 pmCincinnati Cinci./N. Kentucky

$707

Delta

Nov 1

CVG8:00 amCincinnati Cinci./N. Kentucky

19h 15m

1 stop

OPO8:15 amPorto

Nov 11

OPO11:15 amPorto

18h 22m

2 stops

CVG12:37 amCincinnati Cinci./N. Kentucky

$708

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 1/27

8:50 pm-9:55 pm

1 stop20h 05m

Lisbon Humberto Delgado

Tue 2/2

11:05 am-7:15 pm

1 stop13h 10m

$703

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 11/3

9:10 pm-10:00 pm

1 stop19h 50m

Porto

Thu 11/12

5:55 am-4:09 pm

1 stop15h 14m

$705

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

Tue 11/10

5:55 am-4:09 pm

1 stop15h 14m

$705

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 11/3

8:55 am-9:30 am

1 stop19h 35m

Porto

Thu 11/12

6:00 am-5:25 pm

2 stops16h 25m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

11:44 am-9:30 am

1 stop17h 46m

Porto

Thu 11/5

6:00 am-5:25 pm

2 stops16h 25m

$706

Quickest round-trip

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 1/27

3:36 pm-12:05 pm

2 stops15h 29m

Lisbon Humberto Delgado

Tue 2/2

11:05 am-10:00 pm

1 stop15h 55m

$708

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 1/27

1:05 pm-11:50 am

2 stops17h 45m

Lisbon Humberto Delgado

Tue 2/2

8:45 pm-4:57 pm

2 stops25h 12m

$710

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 11/9

2:34 pm-11:50 am

2 stops16h 16m

Lisbon Humberto Delgado

Mon 11/23

8:45 pm-7:16 pm

2 stops27h 31m

$718

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 11/11

11:03 am-9:05 am

1 stop17h 02m

Lisbon Humberto Delgado

Tue 11/17

8:20 am-7:18 pm

2 stops15h 58m

$719

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 11/11

11:45 am-9:05 am

2 stops16h 20m

Lisbon Humberto Delgado

Tue 11/17

8:20 am-7:18 pm

2 stops15h 58m

$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 $699, 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 $931 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.

Can stopping save me money on Cincinnati to Portugal flights?

You could potentially save up to 1% on your flight if you consider stops on a Cincinnati to Portugal flight.

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	$276
Fastest flight time	10h 00m
Direct flights	None

The best one-way flight to Portugal from Cincinnati in the past 72 hours is $276. The best round-trip flight deal from Cincinnati to Portugal found on momondo in the last 72 hours is $703.

The fastest flight from Cincinnati to Portugal takes 10h 00m

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 1,645 reviews	Search Air France flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 8,205 reviews	Search British Airways flights
Delta	PriceFrom $507	Free Cancellation	Rating 7.8 8,573 reviews	Search Delta flights
United Airlines	PriceFrom $531	Free Cancellation	Rating 7.4 10,172 reviews	Search United Airlines flights
American Airlines	PriceFrom $763	Free Cancellation	Rating 7.1 12,044 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

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Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $509

Flights to Portofrom $539

Flights to Funchalfrom $554

Flights to Farofrom $574

Flights to Ponta Delgadafrom $554

Flights to Lajesfrom $577

Flights to Hortafrom $591

Flights to Pico Islandfrom $561

Flights to Porto Santofrom $942

Flights to Velasfrom $692

Cheap flights from Cincinnati to Portugal from $276

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 10/19. 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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Big names and deals

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Air France flights from Cincinnati to Portugal

Our best Air France deals on Cincinnati to Portugal flight tickets

Delta flights from Cincinnati to Portugal

Our best Delta deals on Cincinnati to Portugal flight tickets

momondo Fare Finder

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?

Can stopping save me money on Cincinnati to Portugal flights?

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