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$619+ Cheap flights from Cleveland (CLE) to Porto (OPO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — OPO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Cleveland to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Cleveland (CLE) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$564
(United Airlines)

Popular in

January

Cheapest in

November

Average price

$1,648
From Cleveland Hopkins Intl to Porto
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Highest demand for flights based on searches. 15% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($97 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Cleveland to Porto

Cheapest flights from Cleveland to Porto
Explore the most affordable flight options available from Cleveland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:15 pmCLE - OPO
2 stops35h 55mAir Canada
Sun 12/76:15 amOPO - CLE
2 stops16h 24mAir Canada
Deal found 9/9$619
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:57 pmCLE - OPO
1 stop9h 48mUnited Airlines
Tue 10/146:00 amOPO - CLE
2 stops22h 58mUnited Airlines
Deal found 9/11$650
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:37 pmCLE - OPO
2 stops22h 43mLufthansa
Tue 10/146:00 amOPO - CLE
2 stops15h 59mLufthansa
Deal found 9/10$662
This Expedia deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:15 pmCLE - OPO
2 stops21h 15mMultiple Airlines
Fri 10/3112:30 pmOPO - CLE
2 stops33h 55mMultiple Airlines
Deal found 9/8$670
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:55 pmCLE - OPO
1 stop9h 50mUnited Airlines
Fri 10/3112:35 pmOPO - CLE
1 stop11h 45mUnited Airlines
Deal found 9/8$673
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:21 pmCLE - OPO
2 stops15h 54mUnited Airlines
Tue 10/146:00 amOPO - CLE
2 stops18h 24mUnited Airlines
Deal found 9/10$837
This Ovago deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 pmCLE - OPO
2 stops22h 20mMultiple Airlines
Sun 10/127:20 pmOPO - CLE
2 stops32h 03mMultiple Airlines
Deal found 9/10$852
This United deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:15 amCLE - OPO
1 stop21h 30mMultiple Airlines
Thu 10/96:00 amOPO - CLE
2 stops38h 23mMultiple Airlines
Deal found 9/9$868
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:40 amCLE - OPO
2 stops26h 05mUnited Airlines
Thu 10/96:00 amOPO - CLE
2 stops38h 23mUnited Airlines
Deal found 9/9$883
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:15 pmCLE - OPO
2 stops38h 10mSWISS
Sun 10/1212:25 pmOPO - CLE
2 stops38h 58mSWISS
Deal found 9/9$885
This Orbitz deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/119:54 amCLE - OPO
2 stops29h 41mBritish Airways
Sat 10/1810:40 amOPO - CLE
2 stops32h 27mBritish Airways
Deal found 9/9$933

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cleveland to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Cleveland to Porto that are best for you.

Fly from

Cleveland

Fly to

Porto

Route

Depart

Return

Price

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Wed 12/3

6:15 pm-11:10 am

2 stops35h 55m

Porto

Sun 12/7

6:15 am-5:39 pm

2 stops16h 24m

$619

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Sun 10/5

6:57 pm-9:45 am

1 stop9h 48m

Porto

Tue 10/14

6:00 am-11:58 pm

2 stops22h 58m

$650

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Sun 10/5

7:37 pm-11:20 pm

2 stops22h 43m

Porto

Tue 10/14

6:00 am-4:59 pm

2 stops15h 59m

$662

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Wed 10/22

11:00 am-10:45 am

1 stop18h 45m

$1,904

ClevelandPorto

CLE - OPO

CLEOPO

Cleveland Hopkins Intl

Wed 10/22

7:37 pm-11:20 pm

2 stops22h 43m

$2,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Cleveland to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Cleveland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cleveland to Porto

What is the cheapest month to book a flight from Cleveland to Porto?

Currently, January is the cheapest month in which you can book a flight from Cleveland to Porto (average of $523). Flying from Cleveland to Porto in June is currently the most expensive (average of $1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CLE to OPO?

Find hourly flight availability from Cleveland to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Cleveland to Porto, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 16% versus a flight in the afternoon.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with United Airlines from Cleveland to Porto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Cleveland to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cleveland to Porto?

    For as low as $650, Air Canada can have you in Porto from Cleveland in 9h 48m. Airlines will cover a distance of 3671 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Cleveland to Porto round-trip?

    Currently priced at $808, United Airlines will fly you from Cleveland to Porto and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. This flight start at 32% lower than the current average price 3 months from now.

  • Can I find deals for flights from Cleveland to Porto that include hotel bookings?

    Yes. In addition to deals on Cleveland to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cleveland to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cleveland to Porto.

  • Can I find deals for business class flights from Cleveland to Porto?

    Yes. Cheapflights offers flight deals from Cleveland to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cleveland to Porto?

    Currently, January is the cheapest month in which you can book a flight from Cleveland to Porto (average of $523). Flying from Cleveland to Porto in June is currently the most expensive (average of $1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Cleveland to Porto

Discover the top airline that operate flights from Cleveland to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$808Average$1,211FlexibilityNo cancel feeOn-time69%

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