CLE - OPO

$612 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 5/6. 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
$762
United Airlines
Tue 10/13Tue 10/20
CLE - OPO • 1 stop
Cheapest one-way
$570
Multiple Airlines
Wed 5/6
CLE - OPO • 3 stops
Top airlines
United Airlines
Cheapest • from $762 (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, Oct 13 - Tue, Oct 20
United Airlines Logo
2:45 pm - 7:00 am
CLE
-
OPO
11h 15m
1 stop
United Airlines Logo
12:15 pm - 11:41 am
OPO
-
CLE
28h 26m
2 stops
$762United Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
7:05 am - 7:00 am
CLE
-
OPO
18h 55m
2 stops
United Airlines Logo
12:15 pm - 11:41 am
OPO
-
CLE
28h 26m
2 stops
$766United Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
7:20 pm - 9:45 am
CLE
-
OPO
9h 25m
1 stop
United Airlines Logo
6:00 am - 11:58 pm
OPO
-
CLE
22h 58m
2 stops
$775United Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
7:05 am - 7:00 am
CLE
-
OPO
18h 55m
2 stops
United Airlines Logo
12:05 pm - 9:34 am
OPO
-
CLE
26h 29m
2 stops
$778United Airlines
Tue, Oct 13 - Mon, Oct 19
Multiple Airlines Logo
6:00 am - 7:00 am
CLE
-
OPO
20h 00m
2 stops
Multiple Airlines Logo
7:20 pm - 4:51 pm
OPO
-
CLE
26h 31m
2 stops
$780Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
2:45 pm - 7:00 am
CLE
-
OPO
11h 15m
1 stop
United Airlines Logo
12:35 pm - 9:57 pm
OPO
-
CLE
14h 22m
1 stop
$782United Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
4:07 pm - 9:45 am
CLE
-
OPO
12h 38m
1 stop
United Airlines Logo
12:35 pm - 9:57 pm
OPO
-
CLE
14h 22m
1 stop
$783United Airlines
Tue, Oct 13 - Mon, Oct 19
Multiple Airlines Logo
4:07 pm - 9:45 am
CLE
-
OPO
12h 38m
1 stop
Multiple Airlines Logo
7:20 pm - 4:51 pm
OPO
-
CLE
26h 31m
2 stops
$825Multiple Airlines
Tue, Oct 6 - Thu, Oct 15
United Airlines Logo
7:05 am - 9:45 am
CLE
-
OPO
21h 40m
1 stop
United Airlines Logo
11:40 am - 11:41 am
OPO
-
CLE
53h 01m
2 stops
$830United Airlines
Tue, Oct 6 - Thu, Oct 22
Delta Logo
12:00 pm - 10:30 am
CLE
-
OPO
17h 30m
1 stop
Delta Logo
5:00 am - 8:57 pm
OPO
-
CLE
20h 57m
2 stops
$831Delta
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Cleveland to Porto were found on United Airlines ($762) and Delta ($831).

Find deals

Good to know

Cheapest flight$570
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 3 days, the lowest price for a flight from Cleveland to Porto was $570 for a one-way ticket and $762 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 9680 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Some crew were unfriendly or in some cases just straight up rude.

6.0 GoodAnonymous, Apr 2026
SFO - YVR
Read more United Airlines reviews

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

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

Information on your arrival and departure airports

Cleveland (CLE)
Porto (OPO)