HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$727+ Cheap flights from Grand Rapids (GRR) 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
GRR — OPO
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Grand Rapids to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Grand Rapids to Porto

Cheapest flights from Grand Rapids to Porto
Explore the most affordable flight options available from Grand Rapids to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 11/14:50 pmGRR - OPO
2 stops12h 40mUnited Airlines
Tue 11/116:00 amOPO - GRR
2 stops20h 41mUnited Airlines
Deal found 10/27$812
This Gurufare deal was found by Cheapflights users on 10/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:25 pmGRR - OPO
1 stop16h 05mLufthansa
Tue 11/116:00 amOPO - GRR
2 stops19h 37mLufthansa
Deal found 10/27$852
This Expedia deal was found by Cheapflights users on 10/27. 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.
Thu 12/112:23 pmGRR - OPO
2 stops24h 37mIberia
Thu 12/188:20 amOPO - GRR
2 stops20h 39mIberia
Deal found 10/27$858
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:00 amGRR - OPO
3 stops24h 55mMultiple Airlines
Thu 12/181:00 pmOPO - GRR
3 stops34h 34mMultiple Airlines
Deal found 10/27$1,247

Cheap flight deals from Grand Rapids to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Grand Rapids (GRR) 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$727
(United Airlines)
Provider with most accurate pricing for Grand Rapids Gerald R. Ford Intl-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Grand Rapids Gerald R. Ford Intl-Porto flights.
Search Deals
From Grand Rapids Gerald R. Ford Intl to Porto
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Grand Rapids 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 October 29, 2025.
Use the filters below to find and compare flights from Grand Rapids to Porto that are best for you.

Fly from

Grand Rapids

Fly to

Porto

Route

Depart

Return

Price

Grand RapidsPorto

GRR - OPO

GRROPO

Grand Rapids Gerald R. Ford Intl

Fri 3/27

5:01 pm-9:30 am

2 stops12h 29m

Porto

Tue 3/31

6:00 am-8:10 pm

2 stops19h 10m

$727

Grand RapidsPorto

GRR - OPO

GRROPO

Grand Rapids Gerald R. Ford Intl

Tue 4/21

6:32 pm-11:20 pm

2 stops23h 48m

Porto

Thu 4/30

12:00 pm-11:49 pm

2 stops16h 49m

$736

Grand RapidsPorto

GRR - OPO

GRROPO

Grand Rapids Gerald R. Ford Intl

Tue 4/21

4:00 pm-9:45 am

1 stop12h 45m

Porto

Thu 4/30

6:00 am-11:49 pm

2 stops22h 49m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Grand Rapids to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Grand Rapids to Porto in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Grand Rapids-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Grand Rapids-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Grand Rapids-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Grand Rapids-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Grand Rapids-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Grand Rapids to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Grand Rapids 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 Grand Rapids to Porto

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

Find hourly flight availability from Grand Rapids 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 October 29, 2025.

It’s optimal to fly from Grand Rapids to Porto in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to 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 October 29, 2025.
Get a feel of what it's like to fly with United Airlines from Grand Rapids to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Grand Rapids 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 Grand Rapids to Porto?

    Departing from Grand Rapids to Porto will take you 12h 29m. There are 3795 mi between Grand Rapids and Porto. 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 Grand Rapids to Porto round-trip?

    Cheapflights users have booked flights from Grand Rapids to Porto round-trip from $790.

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

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

  • How can I find direct flights from Grand Rapids to Porto?

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

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

    Yes. Cheapflights offers flight deals from Grand Rapids 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.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Grand Rapids to Porto

Discover the top airline that operate flights from Grand Rapids 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$790Average$1,164FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.