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Cheap flights from George Bush Intcntl (IAH) to Porto (OPO) from $265

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 9/21. 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.
IAH — OPO
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Houston George Bush Intcntl to Porto are usually found in February or January, booked 10 days in advance, depart on a Wednesday or Sunday 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 May 16, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$523

One-way from

$265
High demand for flights, 31% potential price rise
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Best time to find cheap flights, 32% potential price drop
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From Houston George Bush Intcntl to Porto
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One-way flight from Houston George Bush Intcntl to Porto
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What is the cheapest day to fly round-trip from Houston George Bush Intcntl Airport to Porto?

Friday flights are generally found to be more expensive for flights from Houston George Bush Intcntl Airport to Porto. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Porto.

What is the cheapest month to fly from Houston George Bush Intcntl Airport to Porto?

Due to multiple factors, expect to potentially pay more when booking in May. For low rates, February can be a great choice for travel to Porto. Flights to Porto from Houston George Bush Intcntl Airport in February are about $1,212 on average during February, but can be found for as low as $782.

When is the cheapest time to fly from Houston George Bush Intcntl Airport to Porto (IAH - OPO)?

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 evening. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight at noon.

Cheap United Airlines flights from George Bush Intcntl to Porto

Explore cheap flight options specifically provided by United Airlines for the route between George Bush Intcntl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the lowest-priced United Airlines flights heading from Houston to Porto. Deals update often to give you more flight options matching your criteria
Mon 6/39:45 amIAH - OPO
2 stops15h 10mUnited Airlines
Tue 6/189:00 amOPO - IAH
2 stops19h 55mUnited Airlines
Deal found 5/14$1,004
Wed 5/2912:19 pmIAH - OPO
1 stop12h 36mUnited Airlines
Wed 6/129:00 amOPO - IAH
1 stop14h 20mUnited Airlines
Deal found 5/15$1,011
Wed 5/292:20 pmIAH - OPO
2 stops13h 25mUnited Airlines
Wed 6/1212:35 pmOPO - IAH
2 stops16h 55mUnited Airlines
Deal found 5/15$1,015
Tue 6/412:19 pmIAH - OPO
1 stop12h 36mUnited Airlines
Tue 6/1112:35 pmOPO - IAH
2 stops17h 40mUnited Airlines
Deal found 5/16$1,016
Mon 8/261:50 pmIAH - OPO
1 stop13h 55mUnited Airlines
Sun 9/112:10 pmOPO - IAH
1 stop31h 25mUnited Airlines
Deal found 5/14$1,017
Mon 8/2612:03 pmIAH - OPO
2 stops15h 42mUnited Airlines
Sun 9/112:10 pmOPO - IAH
1 stop31h 25mUnited Airlines
Deal found 5/14$1,021
Mon 5/271:50 pmIAH - OPO
1 stop13h 55mUnited Airlines
Thu 6/2012:35 pmOPO - IAH
1 stop15h 39mUnited Airlines
Deal found 5/15$1,096
Mon 5/272:20 pmIAH - OPO
2 stops13h 25mUnited Airlines
Thu 6/2012:35 pmOPO - IAH
1 stop15h 39mUnited Airlines
Deal found 5/15$1,100
Sat 6/81:50 pmIAH - OPO
1 stop13h 55mUnited Airlines
Sat 6/226:00 amOPO - IAH
1 stop17h 45mUnited Airlines
Deal found 5/15$1,141

Cheap Air Canada flights from George Bush Intcntl to Porto

Explore cheap flight options specifically provided by Air Canada for the route between George Bush Intcntl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the cheapest available Air Canada flights departing from Houston and landing in Porto. Check back soon if you're not seeing flights that suit your needs.
Tue 8/67:20 amIAH - OPO
2 stops22h 10mAir Canada
Wed 8/1411:10 amOPO - IAH
2 stops30h 11mAir Canada
Deal found 5/15$1,025
Sun 8/187:20 amIAH - OPO
2 stops22h 45mAir Canada
Tue 8/276:15 amOPO - IAH
2 stops35h 06mAir Canada
Deal found 5/16$1,031
Sat 9/2110:05 amIAH - OPO
2 stops19h 25mAir Canada
Thu 10/36:15 amOPO - IAH
2 stops35h 06mAir Canada
Deal found 5/16$1,098
Sat 6/81:30 pmIAH - OPO
2 stops23h 00mAir Canada
Sat 6/226:00 amOPO - IAH
2 stops35h 31mAir Canada
Deal found 5/15$1,149

Cheap George Bush Intcntl to Porto flights in May & June 2024

Find cheap flight options from George Bush Intcntl to Porto specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Listed are some of the best fares we've found on flights departing from Houston to Porto in 2024. Check back regularly for other flight deals.
Sat 6/151:36 pmIAH - OPO
1 stop26h 54mMultiple Airlines
Sat 6/227:00 amOPO - IAH
2 stops32h 36mMultiple Airlines
Deal found 5/16$990
Mon 6/39:45 amIAH - OPO
2 stops15h 10mUnited Airlines
Tue 6/189:00 amOPO - IAH
2 stops19h 55mUnited Airlines
Deal found 5/14$1,004
Wed 5/2912:19 pmIAH - OPO
1 stop12h 36mUnited Airlines
Wed 6/129:00 amOPO - IAH
1 stop14h 20mUnited Airlines
Deal found 5/15$1,011
Wed 5/292:20 pmIAH - OPO
2 stops13h 25mUnited Airlines
Wed 6/1212:35 pmOPO - IAH
2 stops16h 55mUnited Airlines
Deal found 5/15$1,015
Tue 6/412:19 pmIAH - OPO
1 stop12h 36mUnited Airlines
Tue 6/1112:35 pmOPO - IAH
2 stops17h 40mUnited Airlines
Deal found 5/16$1,016
Sat 6/155:20 pmIAH - OPO
2 stops23h 10mMultiple Airlines
Sat 6/228:30 amOPO - IAH
2 stops27h 43mMultiple Airlines
Deal found 5/16$1,030
Mon 5/271:50 pmIAH - OPO
1 stop13h 55mUnited Airlines
Thu 6/2012:35 pmOPO - IAH
1 stop15h 39mUnited Airlines
Deal found 5/15$1,096
Mon 5/277:20 amIAH - OPO
2 stops17h 35mUnited Airlines
Thu 6/209:00 amOPO - IAH
2 stops17h 18mUnited Airlines
Deal found 5/15$1,100
Sat 6/81:50 pmIAH - OPO
1 stop13h 55mUnited Airlines
Sat 6/226:00 amOPO - IAH
1 stop17h 45mUnited Airlines
Deal found 5/15$1,141

George Bush Intcntl to Porto 2024 flight deals

Discover exclusive flight deals for travel between George Bush Intcntl and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Listed are some of the best fares we've found on flights departing from Houston to Porto in 2024. Check back regularly for other flight deals.
Mon 8/261:27 pmIAH - OPO
3 stops24h 48mMultiple Airlines
Mon 9/97:30 amOPO - IAH
1 stop23h 29mMultiple Airlines
Deal found 5/14$747
Mon 8/261:27 pmIAH - OPO
3 stops24h 48mMultiple Airlines
Mon 9/97:30 amOPO - IAH
2 stops21h 25mMultiple Airlines
Deal found 5/14$782
Mon 8/261:27 pmIAH - OPO
3 stops24h 48mMultiple Airlines
Mon 9/912:35 pmOPO - IAH
3 stops34h 58mMultiple Airlines
Deal found 5/14$803
Mon 8/269:36 amIAH - OPO
2 stops26h 39mMultiple Airlines
Mon 9/97:30 amOPO - IAH
1 stop23h 29mMultiple Airlines
Deal found 5/14$834
Mon 8/2611:13 amIAH - OPO
1 stop17h 22mMultiple Airlines
Mon 9/97:30 amOPO - IAH
1 stop23h 29mMultiple Airlines
Deal found 5/14$909
Sat 6/151:36 pmIAH - OPO
1 stop26h 54mMultiple Airlines
Sat 6/227:00 amOPO - IAH
2 stops32h 36mMultiple Airlines
Deal found 5/16$990
Mon 6/39:45 amIAH - OPO
2 stops15h 10mUnited Airlines
Tue 6/189:00 amOPO - IAH
2 stops19h 55mUnited Airlines
Deal found 5/14$1,004
Wed 5/2912:19 pmIAH - OPO
1 stop12h 36mUnited Airlines
Wed 6/129:00 amOPO - IAH
1 stop14h 20mUnited Airlines
Deal found 5/15$1,011
Wed 5/292:20 pmIAH - OPO
2 stops13h 25mUnited Airlines
Wed 6/1212:35 pmOPO - IAH
2 stops16h 55mUnited Airlines
Deal found 5/15$1,015

George Bush Intcntl to Porto flights leaving soon

Find last-minute flight options from George Bush Intcntl to Porto for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the last-minute flights available departing from Houston to Porto. Users should examine the flight details to ensure there are no surprises.
Fri 5/246:35 amIAH - OPO
3 stops29h 55mMultiple Airlines
Mon 5/274:45 pmOPO - IAH
3 stops38h 13mMultiple Airlines
Deal found 5/15$1,315
Fri 5/241:30 pmIAH - OPO
2 stops23h 00mMultiple Airlines
Mon 5/277:15 pmOPO - IAH
2 stops31h 03mMultiple Airlines
Deal found 5/15$1,368
Fri 5/241:50 pmIAH - OPO
1 stop13h 55mMultiple Airlines
Mon 5/274:35 pmOPO - IAH
1 stop27h 00mMultiple Airlines
Deal found 5/15$1,393
Fri 5/2412:07 pmIAH - OPO
2 stops15h 38mMultiple Airlines
Mon 5/274:35 pmOPO - IAH
1 stop27h 00mMultiple Airlines
Deal found 5/15$1,397
Fri 5/246:35 amIAH - OPO
3 stops29h 55mMultiple Airlines
Mon 5/277:35 amOPO - IAH
2 stops22h 37mMultiple Airlines
Deal found 5/15$1,508

One-way flights to Porto from George Bush Intcntl

Search for one-way flight options from George Bush Intcntl to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users in need of a one-way flight from Houston to Porto can choose from these deals. Users can also find round-trip Houston to Porto flights by using the search form above.
Sat 9/219:36 amIAH - OPO
2 stops40h 59mMultiple Airlines
Deal found 5/16$265
Thu 9/1911:13 amIAH - OPO
2 stops38h 27mMultiple Airlines
Deal found 5/16$320
Fri 9/2011:13 amIAH - OPO
2 stops29h 37mMultiple Airlines
Deal found 5/16$324
Sun 9/811:13 amIAH - OPO
2 stops29h 57mMultiple Airlines
Deal found 5/14$325
Sat 9/218:20 amIAH - OPO
3 stops27h 00mMultiple Airlines
Deal found 5/16$330
Sun 9/88:50 amIAH - OPO
3 stops32h 20mMultiple Airlines
Deal found 5/14$332
Sat 9/219:36 amIAH - OPO
1 stop30h 54mMultiple Airlines
Deal found 5/16$365
Thu 9/198:50 amIAH - OPO
3 stops30h 10mMultiple Airlines
Deal found 5/16$366
Fri 9/139:36 amIAH - OPO
2 stops40h 09mMultiple Airlines
Deal found 5/15$368

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$747 - $1,131

Route

Depart

Return

Price

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 8/26

3 stops24h 48m

Porto

Mon 9/9

1 stop23h 29m

$747

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 6/3

2 stops15h 10m

Porto

Tue 6/18

2 stops19h 55m

$1,004

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 8/6

2 stops22h 10m

Porto

Wed 8/14

2 stops30h 11m

$1,025

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 8/18

1 stop17h 40m

Porto

Tue 8/27

2 stops20h 21m

$1,033

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 9/8

1 stop17h 40m

Porto

Fri 9/27

2 stops19h 32m

$1,034

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 8/26

2 stops16h 12m

Porto

Sun 9/1

2 stops30h 45m

$1,046

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 9/24

2 stops41h 15m

Porto

Mon 10/7

2 stops31h 03m

$1,055

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Fri 9/20

1 stop22h 55m

Porto

Thu 10/3

1 stop22h 30m

$1,088

Houston George Bush IntcntlPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 11/3

1 stop35h 05m

Porto

Thu 11/7

1 stop34h 00m

$1,131

Flights are sorted by cheapest first

Deals found on 5/14

When is the best time to 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 May 10, 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.
Search Deals

When is the cheapest time to fly from Houston George Bush Intcntl Airport to Porto?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Porto. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Porto flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Porto by month

Plan your trip from George Bush Intcntl to Porto by taking into account the cheapest months to travel. The average price of a one-way flight from George Bush Intcntl to Porto is currently $333 while a round-trip flight costs $1,018. Price data was last updated on May 12, 2024.

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 $1,011). 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.

January

$523

February

$580

March

$600

April

$742

May

$879

June

$1,011

July

$980

August

$855

September

$766

October

$691

November

$560

December

$645

Temperature and rainfall in Porto by month

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

OPO

Temperature

48.2 - 68 °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 May 16, 2024.
Peruse reviews from past customers who have flown with United Airlines, Air Canada and Air France from Houston to Porto to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,764 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Turkish Airlines
7.4
Good
3,707 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 6 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • Can I find flights from Houston George Bush Intcntl Airport to Porto for under $800 on Cheapflights?

    Yes, there are multiple flights from Houston George Bush Intcntl Airport to Porto for under $800. The cheapest flight booked recently is on Multiple Airlines for just $747, but on average you can expect to pay $969.

  • Are there last-minute flights available from Houston George Bush Intcntl Airport to Porto for under $1,400?

    There are currently 5+ open flights from Houston George Bush Intcntl Airport to Porto within the next 7 days for less than $1,400.

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

    According to our current data, United Airlines ($1,004), Air Canada ($1,025), and Air France ($1,033) 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 14% less than the average price by searching for these airlines.

  • What are the most popular airlines that fly from Houston George Bush Intcntl Airport to Porto?

    British Airways, Delta and Iberia are the most popular airlines when flying from Houston George Bush Intcntl Airport to Porto.

  • What does IAH to OPO mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Houston George Bush Intcntl Airport to Porto Airport flight would often be abbreviated as a IAH to OPO flight.

  • Can I find deals for flights from George Bush Intcntl to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your George Bush Intcntl to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from George Bush Intcntl to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter George Bush Intcntl to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by 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.

  • Can I find deals for flights from George Bush Intcntl to Porto that allow pets onboard?

    Many airlines flying from George Bush Intcntl to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from George Bush Intcntl to Porto?

    Yes, you can often find last-minute deals on George Bush Intcntl to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Houston George Bush Intcntl Airport to Porto flight deals updated?

    The Houston George Bush Intcntl Airport to Porto flight deals you see on this page were last updated on 5/16.

See more FAQs

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

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Top 6 airlines flying from George Bush Intcntl to Porto

Discover the top 6 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$548Average$768FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest$588Average$1,246FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$704Average$904FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$749Average$1,408FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest$791Average$1,164FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest$848Average$1,215FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
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Search flights from George Bush Intcntl to Porto by cabin class

Find flights from George Bush Intcntl to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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