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

Delta and British Airways 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 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.

$326 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.

5:00 pm - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

11h 30m1 stop Newark

12:35 pm - 11:52 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 17m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Tue, Dec 1 - Wed, Dec 9

2:10 pm - 9:30 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

14h 20m2 stops Chicago O'Hare Intl Newark

12:35 pm - 11:52 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

16h 17m2 stops Frankfurt am Main Chicago O'Hare Intl

$710United Airlines

Tue, Dec 1 - Wed, Dec 9

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

$712Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

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

15h 10m2 stops Toronto Pearson Intl Frankfurt am Main

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

17h 00m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$730Multiple Airlines

Wed, Nov 18 - Wed, Nov 25

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

15h 55m1 stop London Heathrow

10:55 am - 11:18 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 23m1 stop Philadelphia

$732British Airways

Sun, Feb 21 - Thu, Feb 25

9:50 pm - 5:45 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 55m1 stop London Heathrow

11:05 am - 11:18 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 13m1 stop Philadelphia

$733British Airways

Wed, Mar 17 - Wed, Mar 31

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

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

$777Delta

Tue, Oct 27 - Thu, Nov 5

7:05 am - 8:15 amCVG Cincinnati Cinci./N. Kentucky-OPO Porto

20h 10m1 stop New York John F Kennedy Intl

5:00 am - 11:16 pmOPO Porto-CVG Cincinnati Cinci./N. Kentucky

23h 16m2 stops Amsterdam Schiphol Boston Logan Intl

$781Delta

Sun, Nov 1 - Sun, Nov 8

8:00 am - 8:55 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

19h 55m1 stop Philadelphia

11:05 am - 11:43 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

17h 38m1 stop Philadelphia

$788American Airlines

Wed, Feb 10 - Mon, Feb 15

Cheap last minute flights

Enter your travel dates to find the best prices.

7:13 pm - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

32h 52m1 stop Philadelphia

6:45 pm - 6:33 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

28h 48m2 stops London Heathrow Philadelphia

$949British Airways

Mon, Oct 12 - Mon, Oct 19

7:13 pm - 9:05 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

32h 52m1 stop Philadelphia

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

28h 25m1 stop London Heathrow

$952British Airways

Mon, Oct 12 - Mon, Oct 19

9:04 pm - 11:50 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

33h 46m2 stops Chicago O'Hare Intl Madrid Barajas

8:45 pm - 9:18 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

29h 33m2 stops Madrid Barajas Boston Logan Intl

$1,016Iberia

Mon, Oct 12 - Mon, Oct 19

7:30 am - 8:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

19h 50m1 stop Newark

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

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

$1,087United Airlines

Mon, Oct 12 - Sun, Oct 25

10:00 am - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

19h 30m2 stops Newark Washington, D.C. Dulles Intl

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

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

$1,091United Airlines

Mon, Oct 12 - Sun, Oct 25

4:10 pm - 10:30 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

13h 20m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

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

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

$1,091United Airlines

Mon, Oct 12 - Sun, Oct 25

10:50 am - 5:25 pmCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

25h 35m2 stops Chicago O'Hare Intl Zurich

6:15 am - 10:29 amLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

32h 14m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

$1,134Multiple Airlines

Mon, Oct 12 - Sun, Oct 25

11:48 am - 8:20 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

15h 32m1 stop Newark

6:15 am - 12:07 amLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

46h 52m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,230Lufthansa

Wed, Oct 7 - Sun, Oct 11

11:38 am - 10:45 amCVG Cincinnati Cinci./N. Kentucky-LIS Lisbon Humberto Delgado

18h 07m1 stop Boston Logan Intl

5:35 am - 3:09 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

14h 34m1 stop Paris Charles de Gaulle

$1,299Multiple Airlines

Wed, Oct 7 - Sun, Oct 11

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

20h 55m1 stop London Heathrow

11:05 am - 9:52 pmLIS Lisbon Humberto Delgado-CVG Cincinnati Cinci./N. Kentucky

15h 47m1 stop Philadelphia

$8,040British Airways

Sat, Oct 10 - Fri, Nov 13

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American Airlines flights from Cincinnati to Portugal

Our best American Airlines deals on Cincinnati to Portugal flight tickets

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

$736

American Airlines

Feb 10

CVG8:00 amCincinnati Cinci./N. Kentucky

19h 55m

1 stop

LIS8:55 amLisbon Humberto Delgado

Feb 15

LIS11:05 amLisbon Humberto Delgado

17h 13m

1 stop

CVG11:18 pmCincinnati Cinci./N. Kentucky

$788

British Airways flights from Cincinnati to Portugal

Our best British Airways deals on Cincinnati to Portugal flight tickets

British Airways

Mar 17

CVG9:50 pmCincinnati Cinci./N. Kentucky

15h 55m

1 stop

LIS5:45 pmLisbon Humberto Delgado

Mar 31

LIS11:05 amLisbon Humberto Delgado

17h 13m

1 stop

CVG11:18 pmCincinnati Cinci./N. Kentucky

$733

British Airways

Nov 11

CVG8:50 pmCincinnati Cinci./N. Kentucky

15h 55m

1 stop

LIS5:45 pmLisbon Humberto Delgado

Nov 18

LIS11:05 amLisbon Humberto Delgado

15h 47m

1 stop

CVG9:52 pmCincinnati Cinci./N. Kentucky

$737

British Airways

Feb 10

CVG4:08 pmCincinnati Cinci./N. Kentucky

11h 47m

1 stop

LIS8:55 amLisbon Humberto Delgado

Feb 15

LIS6:35 pmLisbon Humberto Delgado

30h 17m

2 stops

CVG7:52 pmCincinnati Cinci./N. Kentucky

$748

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 12/1

5:00 pm-9:30 am

1 stop11h 30m

Porto

Wed 12/9

12:35 pm-11:52 pm

2 stops16h 17m

$706

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Tue 12/1

2:10 pm-9:30 am

2 stops14h 20m

Porto

Wed 12/9

12:35 pm-11:52 pm

2 stops16h 17m

$710

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

$712

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 11/18

6:40 pm-2:50 pm

2 stops15h 10m

Lisbon Humberto Delgado

Wed 11/25

6:00 am-6:00 pm

2 stops17h 00m

$730

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Sun 2/21

8:50 pm-5:45 pm

1 stop15h 55m

Lisbon Humberto Delgado

Thu 2/25

10:55 am-11:18 pm

1 stop17h 23m

$732

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 3/17

9:50 pm-5:45 pm

1 stop15h 55m

Lisbon Humberto Delgado

Wed 3/31

11:05 am-11:18 pm

1 stop17h 13m

$733

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

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

$777

CincinnatiPorto

CVG Cincinnati Cinci./N. Kentucky - OPO Porto

CVGOPO

Cincinnati Cinci./N. Kentucky

Sun 11/1

7:05 am-8:15 am

1 stop20h 10m

Porto

Sun 11/8

5:00 am-11:16 pm

2 stops23h 16m

$781

CincinnatiLisbon

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

CVGLIS

Cincinnati Cinci./N. Kentucky

Wed 2/10

8:00 am-8:55 am

1 stop19h 55m

Lisbon Humberto Delgado

Mon 2/15

11:05 am-11:43 pm

1 stop17h 38m

$788

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 $640, 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 $930 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.

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	$326
Fastest flight time	11h 30m
Direct flights	None

The best one-way flight to Portugal from Cincinnati in the past 72 hours is $326. 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 7.4 10,288 reviews	Search United Airlines flights
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 8,245 reviews	Search British Airways flights
Delta	PriceFrom $507	Free Cancellation	Rating 7.8 8,634 reviews	Search Delta flights
American Airlines	PriceFrom $719	Free Cancellation	Rating 7.0 12,127 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 $396

Flights to Portofrom $406

Flights to Funchalfrom $418

Flights to Farofrom $407

Flights to Ponta Delgadafrom $563

Flights to Lajesfrom $561

Flights to Hortafrom $585

Flights to Pico Islandfrom $812

Flights to Porto Santofrom $957

Flights to Velasfrom $578

Cheap flights from Cincinnati to Portugal from $326

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 2/1. 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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American Airlines flights from Cincinnati to Portugal

Our best American Airlines deals on Cincinnati to Portugal flight tickets

British Airways flights from Cincinnati to Portugal

Our best British Airways 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