HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$516+ Cheap flights from George Bush Intcntl (IAH) 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — OPO
Dec 25 — Jan 11
Wed 12/25
Wed 1/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl 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.

The best prices from Houston George Bush Intcntl to Porto are usually found in February or January, booked 8 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from George Bush Intcntl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 December 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$649
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$1,221
Provider with most accurate pricing for Houston George Bush Intcntl-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Porto flights.
Search Deals
From Houston George Bush Intcntl to Porto
Search Deals
High demand for flights, 19% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from George Bush Intcntl to Porto

Best flights from George Bush Intcntl to Porto
Discover carefully curated flight deals from George Bush Intcntl to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 20, 2024.

This Booking.com deal was found by Cheapflights users on 12/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/99:30 amIAH - OPO
2 stops19h 40mAir Canada
Mon 2/246:00 amOPO - IAH
2 stops46h 18mAir Canada
Deal found 12/19$649
This Iberia deal was found by Cheapflights users on 12/19. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/93:55 pmIAH - OPO
1 stop18h 45mMultiple Airlines
Mon 2/248:40 pmOPO - IAH
2 stops31h 26mMultiple Airlines
Deal found 12/19$684
This Delta deal was found by Cheapflights users on 12/19. 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 2/93:25 pmIAH - OPO
1 stop13h 05mDelta
Mon 2/2411:15 amOPO - IAH
1 stop32h 20mDelta
Deal found 12/19$692
This KLM deal was found by Cheapflights users on 12/19. 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 4/13:50 pmIAH - OPO
1 stop17h 40mKLM
Tue 4/811:25 amOPO - IAH
1 stop32h 00mKLM
Deal found 12/19$694
This United Airlines deal was found by Cheapflights users on 12/20. 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 2/34:30 pmIAH - OPO
1 stop16h 55mUnited Airlines
Mon 2/106:00 amOPO - IAH
2 stops39h 47mUnited Airlines
Deal found 12/20$718
This FlightHub deal was found by Cheapflights users on 12/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/302:35 pmIAH - OPO
1 stop19h 15mTurkish Airlines
Tue 5/1310:45 amOPO - IAH
1 stop32h 05mTurkish Airlines
Deal found 12/19$780
This Iberia deal was found by Cheapflights users on 12/19. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:26 pmIAH - OPO
2 stops15h 29mIberia
Tue 5/1312:20 pmOPO - IAH
2 stops17h 59mIberia
Deal found 12/19$1,147
This Aeromexico deal was found by Cheapflights users on 12/19. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:50 pmIAH - OPO
1 stop34h 35mAir France
Mon 5/124:20 pmOPO - IAH
2 stops34h 49mAir France
Deal found 12/19$1,167
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/19. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/143:30 pmIAH - OPO
1 stop13h 05mTAP AIR PORTUGAL
Tue 7/86:05 pmOPO - IAH
1 stop35h 09mTAP AIR PORTUGAL
Deal found 12/19$1,635
This British Airways deal was found by Cheapflights users on 12/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/143:47 pmIAH - OPO
2 stops13h 53mBritish Airways
Thu 7/109:05 pmOPO - IAH
1 stop22h 35mBritish Airways
Deal found 12/19$1,687

Find flights from George Bush Intcntl to Porto within your budget

Customize your flight search to find flights from George Bush Intcntl 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 December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 2/9

9:30 am-11:10 am

2 stops19h 40m

Porto

Mon 2/24

6:00 am-10:18 pm

2 stops46h 18m

$649

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 2/9

3:55 pm-4:40 pm

1 stop18h 45m

Porto

Mon 2/24

8:40 pm-10:06 pm

2 stops31h 26m

$684

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 2/9

3:25 pm-10:30 am

1 stop13h 05m

Porto

Mon 2/24

11:15 am-1:35 pm

1 stop32h 20m

$692

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 4/1

3:50 pm-3:30 pm

1 stop17h 40m

Porto

Tue 4/8

11:25 am-1:25 pm

1 stop32h 00m

$694

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 2/3

4:30 pm-3:25 pm

1 stop16h 55m

Porto

Mon 2/10

6:00 am-3:47 pm

2 stops39h 47m

$718

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 4/30

2:35 pm-3:50 pm

1 stop19h 15m

Porto

Tue 5/13

10:45 am-12:50 pm

1 stop32h 05m

$780

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 4/30

6:26 pm-3:55 pm

2 stops15h 29m

Porto

Tue 5/13

12:20 pm-12:19 am

2 stops17h 59m

$1,147

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 4/30

3:50 pm-8:25 am

1 stop34h 35m

Porto

Mon 5/12

4:20 pm-9:09 pm

2 stops34h 49m

$1,167

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sat 6/14

3:30 pm-10:35 am

1 stop13h 05m

Porto

Tue 7/8

6:05 pm-11:14 pm

1 stop35h 09m

$1,635

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sat 6/14

3:47 pm-11:40 am

2 stops13h 53m

Porto

Thu 7/10

9:05 pm-1:40 pm

1 stop22h 35m

$1,687

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 14 results
1
2

Compare providers for flights from George Bush Intcntl 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 George Bush Intcntl to Porto in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 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 Houston George Bush Intcntl Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Porto flights, Cheapflights users trust FlightHub the most. FlightHub 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 Houston George Bush Intcntl Airport-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 George Bush Intcntl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from George Bush Intcntl 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.

Travel insights for flights from George Bush Intcntl to Porto

Get recent, data-driven insights about flights from George Bush Intcntl to Porto including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Porto?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Porto. Price data was last updated on December 13, 2024.

The price you pay for your flight from Houston George Bush Intcntl Airport to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 5 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Porto?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Porto (average of $523). Flying from Houston George Bush Intcntl Airport to Porto in June is currently the most expensive (average of $1,000). 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 IAH to OPO?

Find hourly flight availability from George Bush Intcntl 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 December 20, 2024.

A simple way to save on the total cost of your ticket is to fly from Houston George Bush Intcntl Airport to Porto in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at noon.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 December 20, 2024.
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,600 reviews
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,502 reviews
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,048 reviews
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,897 reviews
Delta
8.0
Very good
8,600 reviews

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl 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 Houston George Bush Intcntl?

    Most people fly into Porto (OPO) if they book a flight to Porto from Houston George Bush Intcntl. On average, Porto has 0 inbound flights from Houston George Bush Intcntl per day from 4 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Porto round-trip?

    According to our current data, Air Canada ($649), Delta ($692), and KLM ($694) offers the cheapest pricing from Houston George Bush Intcntl Airport to Porto. You may be able to fly from Houston George Bush Intcntl Airport to Porto for 44% less than the average price by searching for these airlines.

  • Can I find deals for flights from George Bush Intcntl to Porto that include hotel bookings?

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

  • How can I find direct flights from George Bush Intcntl to Porto?

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

  • Can I find deals for business class flights from George Bush Intcntl to Porto?

    Yes. Cheapflights offers flight deals from George Bush Intcntl 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 Houston George Bush Intcntl Airport to Porto?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Porto (average of $523). Flying from Houston George Bush Intcntl Airport to Porto in June is currently the most expensive (average of $1,000). 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

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.

Alternative routes for George Bush Intcntl to Porto

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Lisbon flights
George Bush Intcntl to Lisbon flights
Hobby to Porto flights
Hobby to Funchal flights
George Bush Intcntl to Funchal flights

Top 4 airlines flying from George Bush Intcntl to Porto

Discover the top 4 airlines that operate flights from George Bush Intcntl 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 December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$644Average$1,086FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$788Average$1,207FlexibilityNo cancel feeOn-time69%
DeltaCheapest$812Average$1,026FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$944Average$1,385FlexibilityNo cancel feeOn-time76%
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.