CLE - OPO

$463 Find Cheap Flights from Cleveland to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cleveland to Porto departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cleveland to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cleveland to Porto, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$717
United Airlines
Tue 11/17Thu 11/19
CLE - OPO • 1 stop
Cheapest one-way
$463
United Airlines
Sun 8/16
CLE - OPO • 2 stops
Top airlines
United Airlines
Cheapest • from $717 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Cleveland and Porto. You'll need at least 1 connection.
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We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Cleveland to Porto (CLE-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cleveland to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cleveland to Porto

Tue, Nov 17 - Thu, Nov 19
United Airlines Logo
7:12 pm - 9:30 am
CLE
-
OPO
9h 18m
1 stop
United Airlines Logo
12:35 pm - 9:34 am
OPO
-
CLE
25h 59m
2 stops
$717United Airlines
Tue, Nov 17 - Thu, Nov 19
United Airlines Logo
9:05 am - 9:30 am
CLE
-
OPO
19h 25m
2 stops
United Airlines Logo
12:35 pm - 9:34 am
OPO
-
CLE
25h 59m
2 stops
$722United Airlines
Tue, Nov 17 - Thu, Nov 19
United Airlines Logo
1:00 pm - 9:30 am
CLE
-
OPO
15h 30m
1 stop
United Airlines Logo
12:35 pm - 9:57 pm
OPO
-
CLE
14h 22m
1 stop
$726United Airlines
Sun, Oct 11 - Mon, Oct 19
Multiple Airlines Logo
7:00 pm - 7:00 am
CLE
-
OPO
55h 00m
2 stops
Multiple Airlines Logo
7:20 pm - 5:00 pm
OPO
-
CLE
26h 40m
2 stops
$804Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
Multiple Airlines Logo
2:45 pm - 7:10 am
CLE
-
OPO
11h 25m
1 stop
Multiple Airlines Logo
6:00 am - 6:20 pm
OPO
-
CLE
16h 20m
2 stops
$819Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
Multiple Airlines Logo
2:45 pm - 7:10 am
CLE
-
OPO
11h 25m
1 stop
Multiple Airlines Logo
6:00 am - 6:20 pm
OPO
-
CLE
16h 20m
2 stops
$823Multiple Airlines
Fri, Oct 23 - Fri, Oct 30
United Airlines Logo
4:07 pm - 9:45 am
CLE
-
OPO
12h 38m
1 stop
United Airlines Logo
6:00 am - 8:43 pm
OPO
-
CLE
18h 43m
2 stops
$824United Airlines
Fri, Oct 23 - Fri, Oct 30
United Airlines Logo
5:20 am - 7:10 am
CLE
-
OPO
20h 50m
2 stops
United Airlines Logo
6:00 am - 10:09 pm
OPO
-
CLE
20h 09m
2 stops
$828United Airlines
Fri, Oct 23 - Fri, Oct 30
United Airlines Logo
10:53 am - 9:45 am
CLE
-
OPO
17h 52m
2 stops
United Airlines Logo
6:00 am - 8:43 pm
OPO
-
CLE
18h 43m
2 stops
$829United Airlines
Fri, Oct 23 - Fri, Oct 30
United Airlines Logo
2:45 pm - 7:10 am
CLE
-
OPO
11h 25m
1 stop
United Airlines Logo
12:35 pm - 5:40 pm
OPO
-
CLE
33h 05m
1 stop
$837United Airlines
Booking Insights

KAYAK's insights & trends for Cleveland to Porto flights

Get data-powered insights and trends into flights from Cleveland to Porto to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Cleveland to Porto?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Cleveland to Porto were found on United Airlines ($717) and SWISS ($881).

Find deals

Good to know

Cheapest flight$463
Flight from Cleveland to Porto

When to book flights from Cleveland to Porto

Are your dates flexible? Find out the best times to travel from Cleveland to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cleveland to Porto

  • What is the cheapest flight from Cleveland to Porto?

    In the last 5 days, the lowest price for a flight from Cleveland to Porto was $463 for a one-way ticket and $717 for a round-trip.

  • Do I need a passport to fly between Cleveland and Porto?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Cleveland and on arrival in Porto.

  • Which airports will I be using when flying from Cleveland to Porto?

    On your way to Porto, you’ll fly out from Cleveland Hopkins Intl. You’ll be landing at Porto.

  • Which aircraft models fly most regularly from Cleveland to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Cleveland to Porto?

    Star Alliance is the only airline alliance operating flights between Cleveland and Porto.

  • How does KAYAK find such low prices on flights from Cleveland to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cleveland to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cleveland to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Cleveland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cleveland to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Cleveland with another airline. Booking your flights between Cleveland and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cleveland to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Cleveland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Cleveland to Porto

 
See real verified KAYAK customer reviews for airlines flying from Cleveland to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cleveland to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9831 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

4.0 OkayOlivia, Jun 2026
SEA - SFO
Read more United Airlines reviews

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

one of the flight attendants on the Dallas to frankfurt leg was somewhat rude..

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

It was perfect! United Airlines staff was extremely caring, super friendly and professional

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

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

Information on your arrival and departure airports

Cleveland (CLE)
Porto (OPO)