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$495+ Cheap flights from Gilbert, AZ to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — OPO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$532
(United Airlines)

One-way from

$495
(British Airways)

Popular in

December

Cheapest in

November

Average price

$742
From Gilbert to Porto
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One-way flight from Gilbert to Porto
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Highest demand for flights based on searches. 11% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($64 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 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/2710:57 pmPHX - OPO
1 stop27h 33mUnited Airlines
Wed 11/126:00 amOPO - PHX
2 stops21h 43mUnited Airlines
Deal found 9/15$532
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:15 amPHX - OPO
2 stops16h 25mAmerican Airlines
Fri 1/308:20 amOPO - PHX
2 stops22h 16mAmerican Airlines
Deal found 9/14$598
This KLM deal was found by Cheapflights users on 9/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:50 pmPHX - OPO
1 stop35h 40mMultiple Airlines
Fri 1/3011:20 amOPO - PHX
2 stops18h 32mMultiple Airlines
Deal found 9/15$599
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/307:30 amPHX - OPO
2 stops19h 00mUnited Airlines
Thu 11/612:35 pmOPO - PHX
2 stops27h 43mUnited Airlines
Deal found 9/15$622
This Travelocity deal was found by Cheapflights users on 9/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:45 pmPHX - OPO
2 stops18h 45mMultiple Airlines
Wed 10/2211:10 amOPO - PHX
2 stops20h 15mMultiple Airlines
Deal found 9/15$626
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 12/287:00 amPHX - OPO
2 stops20h 30mDelta
Fri 1/3011:20 amOPO - PHX
2 stops18h 32mDelta
Deal found 9/15$628
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/2712:45 amPHX - OPO
2 stops27h 55mUnited Airlines
Fri 1/3012:30 pmOPO - PHX
2 stops39h 07mUnited Airlines
Deal found 9/15$636
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 11/13:44 pmPHX - OPO
2 stops24h 56mLufthansa
Sat 11/86:00 amOPO - PHX
2 stops23h 51mLufthansa
Deal found 9/14$652
This KLM deal was found by Cheapflights users on 9/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:05 pmPHX - OPO
1 stop16h 25mKLM
Tue 10/76:15 amOPO - PHX
2 stops20h 50mKLM
Deal found 9/16$702
This Delta deal was found by Cheapflights users on 9/16. 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 9/2312:16 pmPHX - OPO
2 stops19h 14mDelta
Tue 10/76:15 amOPO - PHX
2 stops24h 58mDelta
Deal found 9/16$706

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 September 16, 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

Mon 10/27

10:57 pm-9:30 am

1 stop27h 33m

Porto

Wed 11/12

6:00 am-8:43 pm

2 stops21h 43m

$532

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 10/30

7:30 am-9:30 am

2 stops19h 00m

Porto

Thu 11/6

12:35 pm-9:18 am

2 stops27h 43m

$622

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 11/1

3:44 pm-11:40 pm

2 stops24h 56m

Porto

Sat 11/8

6:00 am-10:51 pm

2 stops23h 51m

$652

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 9/23

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Tue 10/7

6:15 am-7:05 pm

2 stops20h 50m

$702

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 9/23

12:16 pm-3:30 pm

2 stops19h 14m

Porto

Tue 10/7

6:15 am-11:13 pm

2 stops24h 58m

$706

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 10/27

11:50 am-9:30 am

1 stop14h 40m

Porto

Wed 11/12

12:35 pm-10:34 pm

1 stop16h 59m

$796

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 11/1

5:20 pm-9:30 am

3 stops33h 10m

Porto

Sat 11/8

12:30 pm-10:44 pm

2 stops41h 14m

$801

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 10/15

7:30 am-4:35 pm

3 stops25h 05m

Porto

Wed 10/22

10:25 pm-7:19 pm

3 stops28h 54m

$804

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/13

8:25 pm-7:15 pm

1 stop15h 50m

$495

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/13

6:30 pm-10:25 pm

2 stops44h 55m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 12 results
1
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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 September 12, 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, January is the cheapest month in which you can book a flight from Gilbert to Porto (average of $523). Flying from Gilbert 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 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Gilbert to Porto as you normally would.

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 16, 2025.
Read reviews from past customers who have flown Delta, KLM, 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
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,386 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 7 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?

    United Airlines and Lufthansa can get you from Gilbert to Porto in just under 24h 56m. Your travel time can differ by up to 2h 37m. There are 5342 mi between Gilbert and Porto. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Gilbert to Porto one-way?

    The cheapest airlines for a one-way flight from Gilbert to Porto are British Airways ($495), United Airlines ($543), and KLM ($547).

  • 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, January is the cheapest month in which you can book a flight from Gilbert to Porto (average of $523). Flying from Gilbert 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 7 airlines flying from Gilbert to Porto

Discover the top 7 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$568Average$697FlexibilityNo cancel feeOn-time67%
KLMCheapest$579Average$870FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$589Average$976FlexibilityNo cancel feeOn-time69%
DeltaCheapest$590Average$761FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$592Average$714FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$600Average$748FlexibilityNo cancel feeOn-time70%
Air TransatCheapest$797Average$807FlexibilityNo cancel feeOn-time50%

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