What airlines fly to Portugal?

United Airlines, American Airlines and Delta 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?

American Airlines, British Airways, and Delta 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 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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 - Thu, Nov 5

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

11:10 am - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

18h 20m2 stops Chicago O'Hare Intl Newark

6:00 am - 7:18 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

18h 18m2 stops Frankfurt am Main Chicago O'Hare Intl

$711United Airlines

Tue, Oct 27 - Thu, Nov 5

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

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

1:05 pm - 12:05 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 00m2 stops New York John F Kennedy Intl London Heathrow

6:35 pm - 8:27 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

30h 52m2 stops London Heathrow New York John F Kennedy Intl

$743British Airways

Wed, Feb 10 - Mon, Feb 15

1:05 pm - 5:45 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

23h 40m2 stops New York John F Kennedy Intl London Heathrow

6:35 pm - 11:13 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

33h 38m2 stops London Heathrow Chicago O'Hare Intl

$743British Airways

Wed, Feb 10 - Mon, Feb 15

4:05 pm - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

12h 00m1 stop Philadelphia

11:05 am - 8:57 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

14h 52m1 stop Philadelphia

$771American Airlines

Mon, Feb 22 - Fri, Feb 26

8:00 am - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

20h 05m1 stop Philadelphia

11:05 am - 11:56 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 51m2 stops Philadelphia Charlotte Douglas

$781American Airlines

Sun, Dec 13 - Sun, Dec 20

7:00 am - 8:15 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

20h 15m1 stop New York John F Kennedy Intl

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

15h 14m1 stop Paris Charles de Gaulle

$785Delta

Fri, Nov 13 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

4:58 pm - 6:55 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

32h 57m1 stop Newark

12:15 pm - 10:32 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

39h 17m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,151United Airlines

Sat, Sep 12 - Tue, Sep 22

10:22 am - 9:45 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

42h 23m2 stops Washington, D.C. Dulles Intl Newark

12:15 pm - 11:44 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

40h 29m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$1,161United Airlines

Sat, Sep 12 - Tue, Sep 22

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

20h 40m1 stop London Heathrow

8:55 am - 9:05 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 10m2 stops Madrid Barajas Boston Logan Intl

$1,162Multiple Airlines

Sun, Sep 13 - Wed, Sep 23

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

20h 40m1 stop London Heathrow

11:00 am - 7:40 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 40m1 stop London Heathrow

$1,167British Airways

Sun, Sep 13 - Wed, Sep 23

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

20h 40m1 stop London Heathrow

7:10 am - 3:30 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

13h 20m1 stop London Heathrow

$1,167British Airways

Sun, Sep 13 - Tue, Sep 22

11:58 am - 11:25 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

30h 27m2 stops Chicago O'Hare Intl Madrid Barajas

6:35 am - 9:05 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

19h 30m2 stops Madrid Barajas Boston Logan Intl

$1,186Iberia

Sun, Sep 13 - Tue, Sep 22

6:30 pm - 5:50 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 20m1 stop Paris Charles de Gaulle

5:00 am - 7:41 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

19h 41m2 stops Amsterdam Schiphol Boston Logan Intl

$1,193Delta

Sun, Sep 13 - Tue, Sep 22

11:53 am - 8:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 57m2 stops Boston Logan Intl 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

$1,263Delta

Fri, Sep 11 - Tue, Sep 15

5:49 pm - 10:45 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

11h 56m1 stop Boston Logan Intl

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

14h 36m1 stop Paris Charles de Gaulle

$1,319Air France

Sat, Sep 12 - Sun, Sep 20

11:40 am - 8:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

16h 10m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:35 am - 5:28 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

16h 53m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$1,335Air France

Sat, Sep 12 - Sun, Sep 20

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United Airlines flights from Cincinnati to Portugal

Our best United Airlines deals on Cincinnati to Portugal flight tickets

United Airlines

Oct 27

CVG11:44 amCincinnati Cinci./N. Kentucky

17h 46m

1 stop

OPO9:30 amPorto

Nov 5

OPO6:00 amPorto

16h 25m

2 stops

CVG5:25 pmCincinnati Cinci./N. Kentucky

$706

United Airlines

Oct 27

CVG11:10 amCincinnati Cinci./N. Kentucky

18h 20m

2 stops

OPO9:30 amPorto

Nov 5

OPO6:00 amPorto

18h 18m

2 stops

CVG7:18 pmCincinnati Cinci./N. Kentucky

$711

United Airlines

Nov 11

CVG9:50 amCincinnati Cinci./N. Kentucky

17h 20m

1 stop

LIS8:10 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

19h 18m

2 stops

CVG7:18 pmCincinnati Cinci./N. Kentucky

$714

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

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

Delta

Nov 2

CVG7:05 amCincinnati Cinci./N. Kentucky

22h 30m

2 stops

OPO10:35 amPorto

Nov 12

OPO5:55 amPorto

15h 14m

1 stop

CVG4:09 pmCincinnati Cinci./N. Kentucky

$709

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

$705

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

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 10/27

11:10 am-9:30 am

2 stops18h 20m

Porto

Thu 11/5

6:00 am-7:18 pm

2 stops18h 18m

$711

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

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 2/10

1:05 pm-12:05 pm

2 stops18h 00m

Lisbon Humberto Delgado

Mon 2/15

6:35 pm-8:27 pm

2 stops30h 52m

$743

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 2/10

1:05 pm-5:45 pm

2 stops23h 40m

Lisbon Humberto Delgado

Mon 2/15

6:35 pm-11:13 pm

2 stops33h 38m

$743

Quickest round-trip

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Mon 2/22

4:05 pm-9:05 am

1 stop12h 00m

Lisbon Humberto Delgado

Fri 2/26

11:05 am-8:57 pm

1 stop14h 52m

$771

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Sun 12/13

8:00 am-9:05 am

1 stop20h 05m

Lisbon Humberto Delgado

Sun 12/20

11:05 am-11:56 pm

2 stops17h 51m

$781

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Fri 11/13

7:00 am-8:15 am

1 stop20h 15m

Porto

Tue 11/17

5:55 am-4:09 pm

1 stop15h 14m

$785

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 5% 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 $705.

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 1,649 reviews	Search Air France flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 8,209 reviews	Search British Airways flights
Delta	PriceFrom $507	Free Cancellation	Rating 7.8 8,548 reviews	Search Delta flights
United Airlines	PriceFrom $531	Free Cancellation	Rating 7.4 10,178 reviews	Search United Airlines flights
American Airlines	PriceFrom $763	Free Cancellation	Rating 7.1 12,042 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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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $509

Flights to Portofrom $526

Flights to Funchalfrom $589

Flights to Farofrom $574

Flights to Ponta Delgadafrom $554

Flights to Lajesfrom $577

Flights to Hortafrom $591

Flights to Pico Islandfrom $588

Flights to Porto Santofrom $942

Flights to Velasfrom $583

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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United Airlines flights from Cincinnati to Portugal

Our best United Airlines 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