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$541+ Cheap flights from Gilbert, AZ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — OPO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Gilbert to Porto are usually found in November or March, booked 17 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Gilbert to Porto

Keep the following information in mind while searching for Gilbert to Porto flight deals. Data was last updated October 30, 2025.

Round-trip from

$541
(Delta)

Popular in

December

Cheapest in

November

Average price

$787
From Gilbert to Porto
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Gilbert to Porto

Cheapest flights from Gilbert to Porto
Explore the most affordable flight options available from Gilbert to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:34 amPHX - OPO
2 stops20h 56mDelta
Mon 12/86:30 amOPO - PHX
2 stops24h 34mDelta
Deal found 10/29$541
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:45 amPHX - OPO
2 stops21h 40mDelta
Fri 1/306:30 amOPO - PHX
2 stops23h 19mDelta
Deal found 10/28$547
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 12/2912:45 amPHX - OPO
2 stops27h 55mUnited Airlines
Fri 1/3012:30 pmOPO - PHX
2 stops41h 30mUnited Airlines
Deal found 10/28$571
This Ovago deal was found by Cheapflights users on 10/29. 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.
Fri 12/53:25 pmPHX - OPO
2 stops20h 50mBritish Airways
Mon 12/85:30 pmOPO - PHX
1 stop31h 45mBritish Airways
Deal found 10/29$603
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/58:06 amPHX - OPO
2 stops23h 39mUnited Airlines
Mon 12/86:00 amOPO - PHX
3 stops41h 55mUnited Airlines
Deal found 10/29$627
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/2811:35 pmPHX - OPO
2 stops29h 05mUnited Airlines
Fri 1/3012:30 pmOPO - PHX
2 stops41h 30mUnited Airlines
Deal found 10/28$634
This Ovago deal was found by Cheapflights users on 10/29. 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.
Sun 12/283:30 pmPHX - OPO
2 stops37h 10mMultiple Airlines
Fri 1/3012:50 pmOPO - PHX
2 stops42h 07mMultiple Airlines
Deal found 10/29$638
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:35 amPHX - OPO
2 stops20h 55mDelta
Wed 12/311:15 amOPO - PHX
2 stops37h 10mDelta
Deal found 10/29$681
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:35 amPHX - OPO
2 stops20h 55mDelta
Fri 12/511:20 amOPO - PHX
2 stops31h 24mDelta
Deal found 10/29$687
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/127:00 amPHX - OPO
2 stops19h 30mUnited Airlines
Tue 12/212:30 pmOPO - PHX
2 stops53h 22mUnited Airlines
Deal found 10/29$693
This Air France deal was found by Cheapflights users on 10/29. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:55 amPHX - OPO
2 stops16h 35mAir France
Wed 12/311:25 amOPO - PHX
1 stop33h 10mAir France
Deal found 10/29$695

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gilbert 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 30, 2025.
Use the filters below to find and compare flights from Gilbert to Porto that are best for you.

Fly from

Gilbert

Fly to

Porto

Route

Depart

Return

Price

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 12/30

10:45 am-3:25 pm

2 stops21h 40m

Porto

Fri 1/30

6:30 am-10:49 pm

2 stops23h 19m

$547

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 12/29

12:45 am-11:40 am

2 stops27h 55m

Porto

Fri 1/30

12:30 pm-11:00 pm

2 stops41h 30m

$571

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/28

11:35 pm-11:40 am

2 stops29h 05m

Porto

Fri 1/30

12:30 pm-11:00 pm

2 stops41h 30m

$634

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/16

11:51 pm-10:30 am

2 stops27h 39m

Porto

Thu 12/4

11:15 am-12:46 am

2 stops44h 31m

$681

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/16

11:51 pm-10:30 am

2 stops27h 39m

Porto

Fri 12/5

11:20 am-11:44 am

2 stops31h 24m

$687

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/16

11:51 pm-10:30 am

2 stops27h 39m

Porto

Wed 12/3

11:25 am-1:35 pm

1 stop33h 10m

$695

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/16

11:51 pm-10:30 am

2 stops27h 39m

Porto

Sun 12/7

11:15 am-5:25 pm

2 stops37h 10m

$706

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 12/17

12:59 am-7:55 am

3 stops47h 56m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Gilbert to Porto

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

How far ahead should I book a flight from Gilbert to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Gilbert to Porto. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Gilbert to Porto, you should look to book at least 17 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Gilbert to Porto (average of $551). Flying from Gilbert to Porto in June is currently the most expensive (average of $849). 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 G1L to OPO?

Find hourly flight availability from Gilbert 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 30, 2025.

It’s optimal to fly from Gilbert to Porto in the evening. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Gilbert to Porto?

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 30, 2025.
Read reviews from past customers who have flown Delta, Air Transat, and United Airlines from Gilbert to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Transat
7.8
Good
469 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,995 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,034 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,488 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • What airport do you fly into for flights to Porto from Gilbert?

    Porto (OPO) is the airport you will fly into if you book a flight from Gilbert to Porto. You should not have trouble finding flights to Porto from Gilbert; the airport handles an average of 0 inbound flights from Gilbert per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Porto airport from Gilbert. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • How long is the flight from Gilbert to Porto?

    Delta and United Airlines can get you from Gilbert to Porto in just under 21h 40m. Your travel time can differ by up to 6h 15m. There are 5342 mi between Gilbert and Porto. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gilbert 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 Gilbert to Porto?

    Currently, November is the cheapest month in which you can book a flight from Gilbert to Porto (average of $551). Flying from Gilbert to Porto in June is currently the most expensive (average of $849). 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 6 airlines flying from Gilbert to Porto

Discover the top 6 airlines that operate flights from Gilbert 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$568Average$697FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$585Average$930FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$592Average$721FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$600Average$748FlexibilityNo cancel feeOn-time70%
DeltaCheapest$639Average$762FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$797Average$807FlexibilityNo cancel feeOn-time50%

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