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.

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

British Airways, Iberia, and United Airlines are the most popular carriers operating from Cincinnati Cinci./N. Kentucky 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 October 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.

$328 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 pm - 12:50 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

37h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:00 am - 11:49 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 49m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$706Multiple Airlines

Mon, Mar 1 - Wed, Mar 10

3:00 pm - 11:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

16h 45m2 stops Newark Frankfurt am Main

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

40h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$711Multiple Airlines

Mon, Mar 15 - Thu, Mar 25

12:30 pm - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

17h 00m1 stop Newark

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

40h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$715United Airlines

Mon, Mar 15 - Thu, Mar 25

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

17h 00m1 stop Newark

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

41h 00m2 stops Frankfurt am Main Toronto Pearson Intl

$715United Airlines

Mon, Mar 1 - Wed, Mar 10

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

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 05m1 stop Paris Charles de Gaulle

$715Delta

Tue, Mar 2 - Tue, Mar 16

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

19h 50m1 stop Paris Charles de Gaulle

5:55 am - 5:00 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

15h 05m1 stop Paris Charles de Gaulle

$715Delta

Tue, Mar 16 - Thu, Mar 25

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

20h 05m1 stop London Heathrow

11:05 am - 7:36 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 31m1 stop Philadelphia

$732British Airways

Wed, Mar 3 - Wed, Mar 10

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

20h 05m1 stop London Heathrow

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

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

$736American Airlines

Wed, Nov 11 - Wed, Nov 18

8:50 pm - 5:45 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 55m1 stop London Heathrow

7:05 am - 6:55 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

16h 50m1 stop London Heathrow

$740British Airways

Tue, Dec 1 - Tue, Dec 8

8:50 pm - 12:05 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

34h 15m1 stop London Heathrow

11:05 am - 7:45 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 40m1 stop Philadelphia

$740American Airlines

Sun, Nov 29 - Tue, Dec 15

Cheap last minute flights

Enter your travel dates to find the best prices.

1:55 pm - 9:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

14h 25m1 stop Montreal Pierre Elliott Trudeau 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

$828Multiple Airlines

Fri, Oct 23 - Wed, Nov 4

1:55 pm - 9:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

14h 25m1 stop Montreal Pierre Elliott Trudeau 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

$829Multiple Airlines

Fri, Oct 23 - Wed, Nov 4

6:14 pm - 10:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

11h 16m1 stop New York John F Kennedy Intl

5:55 am - 12:10 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 15m2 stops Paris Charles de Gaulle Minneapolis St Paul

$838Delta

Wed, Oct 21 - Sun, Nov 1

5:30 am - 9:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

22h 50m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 11:42 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

23h 42m2 stops Frankfurt am Main Chicago O'Hare Intl

$840United Airlines

Fri, Oct 23 - Wed, Nov 4

4:00 pm - 3:25 pmCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 25m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:55 am - 12:10 amOPO Porto-CVG Cincinnati Cinci./N. Kentucky

22h 15m2 stops Paris Charles de Gaulle Minneapolis St Paul

$841Delta

Wed, Oct 21 - Sun, Nov 1

11:25 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 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

$843American Airlines

Fri, Oct 23 - Wed, Nov 4

11:58 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 07m2 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

$848American Airlines

Fri, Oct 23 - Wed, Nov 4

11:25 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 stop Philadelphia

10:45 am - 6:55 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 10m1 stop London Heathrow

$858British Airways

Fri, Oct 23 - Wed, Nov 4

11:25 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 40m1 stop Philadelphia

10:45 am - 6:55 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 10m1 stop London Heathrow

$859British Airways

Fri, Oct 23 - Wed, Nov 4

4:47 pm - 8:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

10h 33m1 stop Newark

12:20 pm - 11:59 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 39m1 stop Washington, D.C. Dulles Intl

$913United Airlines

Tue, Oct 20 - Tue, Oct 27

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United Airlines flights from Cincinnati to Portugal

Our best United Airlines deals on Cincinnati to Portugal flight tickets

United Airlines

Mar 14

CVG4:00 pmCincinnati Cinci./N. Kentucky

13h 30m

1 stop

OPO9:30 amPorto

Mar 23

OPO6:00 amPorto

21h 53m

2 stops

CVG11:53 pmCincinnati Cinci./N. Kentucky

$717

United Airlines

Mar 14

CVG6:00 amCincinnati Cinci./N. Kentucky

23h 30m

2 stops

OPO9:30 amPorto

Mar 26

OPO6:00 amPorto

31h 55m

2 stops

CVG9:55 amCincinnati Cinci./N. Kentucky

$721

United Airlines

Mar 3

CVG7:57 amCincinnati Cinci./N. Kentucky

19h 13m

1 stop

LIS8:10 amLisbon Humberto Delgado

Mar 10

LIS5:00 amLisbon Humberto Delgado

23h 53m

2 stops

CVG11:53 pmCincinnati Cinci./N. Kentucky

$725

American Airlines flights from Cincinnati to Portugal

Our best American Airlines deals on Cincinnati to Portugal flight tickets

American Airlines

Nov 29

CVG8:50 pmCincinnati Cinci./N. Kentucky

34h 15m

1 stop

LIS12:05 pmLisbon Humberto Delgado

Dec 15

LIS11:05 amLisbon Humberto Delgado

13h 40m

1 stop

CVG7:45 pmCincinnati Cinci./N. Kentucky

$740

American Airlines

Feb 12

CVG11:03 amCincinnati Cinci./N. Kentucky

17h 02m

1 stop

LIS9:05 amLisbon Humberto Delgado

Feb 19

LIS6:30 amLisbon Humberto Delgado

15h 29m

2 stops

CVG4:59 pmCincinnati Cinci./N. Kentucky

$781

American Airlines

Nov 11

CVG8:50 pmCincinnati Cinci./N. Kentucky

20h 05m

1 stop

LIS9:55 pmLisbon Humberto Delgado

Nov 18

LIS8:20 amLisbon Humberto Delgado

15h 58m

2 stops

CVG7:18 pmCincinnati Cinci./N. Kentucky

$786

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/1

6:40 pm-12:50 pm

2 stops37h 10m

Porto

Wed 3/10

6:00 am-11:49 pm

2 stops22h 49m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/15

3:00 pm-11:45 am

2 stops16h 45m

Porto

Thu 3/25

6:00 am-6:00 pm

2 stops40h 00m

$711

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/15

12:30 pm-9:30 am

1 stop17h 00m

Porto

Thu 3/25

6:00 am-6:00 pm

2 stops40h 00m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Mon 3/1

11:30 am-9:30 am

1 stop17h 00m

Porto

Wed 3/10

6:00 am-6:00 pm

2 stops41h 00m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/2

9:10 pm-10:00 pm

1 stop19h 50m

Porto

Tue 3/16

5:55 am-5:00 pm

1 stop15h 05m

$715

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 3/16

10:10 pm-10:00 pm

1 stop19h 50m

Porto

Thu 3/25

5:55 am-5:00 pm

1 stop15h 05m

$715

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 3/3

8:50 pm-9:55 pm

1 stop20h 05m

Lisbon Humberto Delgado

Wed 3/10

11:05 am-7:36 pm

1 stop13h 31m

$732

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 11/11

8:50 pm-9:55 pm

1 stop20h 05m

Lisbon Humberto Delgado

Wed 11/18

8:20 am-7:18 pm

2 stops15h 58m

$736

Quickest round-trip

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Tue 12/1

8:50 pm-5:45 pm

1 stop15h 55m

Lisbon Humberto Delgado

Tue 12/8

7:05 am-6:55 pm

1 stop16h 50m

$740

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Sun 11/29

8:50 pm-12:05 pm

1 stop34h 15m

Lisbon Humberto Delgado

Tue 12/15

11:05 am-7:45 pm

1 stop13h 40m

$740

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 $617, 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 December instead. Flights to Portugal in December, while not as cheap as those in March, still average around $700.

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 $921 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 $629 on momondo.

Can stopping save me money on Cincinnati to Portugal flights?

You could potentially save up to 26% 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	$328
Fastest flight time	11h 30m
Direct flights	None

The best one-way flight to Portugal from Cincinnati in the past 72 hours is $328. The best round-trip flight deal from Cincinnati to Portugal found on momondo in the last 72 hours is $706.

The fastest flight from Cincinnati to Portugal takes 11h 30m

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 October 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
United Airlines	PriceFrom $490	Free Cancellation	Rating 7.3 10,388 reviews	Search United Airlines flights
Air France	PriceFrom $493	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 8,266 reviews	Search British Airways flights
Delta	PriceFrom $507	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
American Airlines	PriceFrom $719	Free Cancellation	Rating 7.0 12,182 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

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.

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Popular cities

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Airlines

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $405

Flights to Portofrom $396

Flights to Funchalfrom $405

Flights to Farofrom $570

Flights to Ponta Delgadafrom $553

Flights to Lajesfrom $554

Flights to Hortafrom $550

Flights to Pico Islandfrom $557

Flights to Porto Santofrom $1,072

Flights to Velasfrom $557

Cheap flights from Cincinnati to Portugal from $328

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 1/18. 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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United Airlines flights from Cincinnati to Portugal

Our best United Airlines deals on Cincinnati to Portugal flight tickets

American Airlines flights from Cincinnati to Portugal

Our best American Airlines 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