Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Houston to Porto from $339

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:23 pm - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
15h 07m1 stop Newark
United Airlines Logo
6:00 am - 6:15 pmOPO  Porto-IAH Houston George Bush Intcntl
18h 15m1 stop Frankfurt am Main
$708United Airlines
Tue, Dec 8 - Fri, Dec 11
United Airlines Logo
8:25 am - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
19h 05m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:15 pmOPO  Porto-IAH Houston George Bush Intcntl
18h 15m1 stop Frankfurt am Main
$712United Airlines
Tue, Dec 8 - Fri, Dec 11
Delta Logo
10:58 am - 10:25 amIAH  Houston George Bush Intcntl-OPO Porto
17h 27m1 stop New York LaGuardia
Delta Logo
11:15 am - 1:05 pmOPO  Porto-IAH Houston George Bush Intcntl
31h 50m1 stop Amsterdam Schiphol
$712Delta
Sun, Oct 18 - Mon, Nov 2
KLM Logo
8:10 pm - 10:00 pmIAH  Houston George Bush Intcntl-OPO Porto
20h 50m1 stop Paris Charles de Gaulle
KLM Logo
5:00 am - 1:10 pmOPO  Porto-IAH Houston George Bush Intcntl
14h 10m1 stop Amsterdam Schiphol
$718KLM
Wed, Oct 28 - Thu, Nov 5
United Airlines Logo
9:56 am - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
17h 34m1 stop Newark
United Airlines Logo
6:00 am - 8:23 pmOPO  Porto-IAH Houston George Bush Intcntl
20h 23m2 stops Frankfurt am Main Newark
$718United Airlines
Mon, Dec 7 - Fri, Dec 11
Delta Logo
2:22 pm - 10:35 amIAH  Houston George Bush Intcntl-OPO Porto
15h 13m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 1:10 pmOPO  Porto-IAH Houston George Bush Intcntl
14h 10m1 stop Amsterdam Schiphol
$723Delta
Wed, Oct 28 - Thu, Nov 5
Air Canada Logo
12:00 pm - 11:15 amIAH  Houston George Bush Intcntl-OPO Porto
41h 15m2 stops Toronto Pearson Intl Zurich
Air Canada Logo
6:00 am - 10:53 amOPO  Porto-IAH Houston George Bush Intcntl
34h 53m2 stops Frankfurt am Main Toronto Pearson Intl
$728Air Canada
Mon, Dec 7 - Fri, Dec 11
KLM Logo
8:10 pm - 10:00 pmIAH  Houston George Bush Intcntl-OPO Porto
20h 50m1 stop Paris Charles de Gaulle
KLM Logo
5:00 am - 1:05 pmOPO  Porto-IAH Houston George Bush Intcntl
14h 05m1 stop Amsterdam Schiphol
$768KLM
Mon, Oct 26 - Mon, Nov 9
Delta Logo
6:09 am - 10:25 amHOU  Houston Hobby-OPO Porto
22h 16m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
Delta Logo
10:15 am - 11:03 pmOPO  Porto-HOU Houston Hobby
18h 48m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson
$775Delta
Sun, Oct 18 - Mon, Nov 2
Multiple Airlines Logo
10:27 am - 8:15 amHOU  Houston Hobby-OPO Porto
15h 48m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
Multiple Airlines Logo
11:15 am - 11:21 pmOPO  Porto-HOU Houston Hobby
18h 06m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$784Multiple Airlines
Wed, Nov 11 - Tue, Nov 17

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

KLM flights from Houston to Porto

Our best KLM deals on Houston to Porto flight tickets
KLM
Oct 28
IAH8:10 pmHouston George Bush Intcntl
20h 50m
1 stop
OPO10:00 pmPorto
Nov 5
OPO5:00 amPorto
14h 10m
1 stop
IAH1:10 pmHouston George Bush Intcntl
$718
KLM
Oct 26
IAH8:10 pmHouston George Bush Intcntl
20h 50m
1 stop
OPO10:00 pmPorto
Nov 9
OPO5:00 amPorto
14h 05m
1 stop
IAH1:05 pmHouston George Bush Intcntl
$768
KLM
Oct 18
IAH3:55 pmHouston George Bush Intcntl
17h 35m
1 stop
OPO3:30 pmPorto
Nov 2
OPO11:15 amPorto
18h 40m
2 stops
IAH11:55 pmHouston George Bush Intcntl
$772

Iberia flights from Houston to Porto

Our best Iberia deals on Houston to Porto flight tickets
Iberia
Feb 10
IAH7:37 amHouston George Bush Intcntl
22h 08m
2 stops
OPO11:45 amPorto
Feb 20
OPO8:40 pmPorto
17h 41m
2 stops
IAH8:21 amHouston George Bush Intcntl
$762
Iberia
Nov 19
HOU11:35 amHouston Hobby
14h 05m
2 stops
OPO7:40 amPorto
Nov 27
OPO8:20 amPorto
21h 09m
2 stops
HOU11:29 pmHouston Hobby
$1,244

momondo Fare Finder

 
Use the filters below to find and compare flights from Houston to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Tue 12/8

12:23 pm-9:30 am

1 stop15h 07m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$708

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Tue 12/8

8:25 am-9:30 am

2 stops19h 05m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$712

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 10/18

10:58 am-10:25 am

1 stop17h 27m

Porto

Mon 11/2

11:15 am-1:05 pm

1 stop31h 50m

$712

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Wed 10/28

8:10 pm-10:00 pm

1 stop20h 50m

Porto

Thu 11/5

5:00 am-1:10 pm

1 stop14h 10m

$718

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

9:56 am-9:30 am

1 stop17h 34m

Porto

Fri 12/11

6:00 am-8:23 pm

2 stops20h 23m

$718
Quickest round-trip

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Wed 10/28

2:22 pm-10:35 am

2 stops15h 13m

Porto

Thu 11/5

5:00 am-1:10 pm

1 stop14h 10m

$723

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

12:00 pm-11:15 am

2 stops41h 15m

Porto

Fri 12/11

6:00 am-10:53 am

2 stops34h 53m

$728

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 10/26

8:10 pm-10:00 pm

1 stop20h 50m

Porto

Mon 11/9

5:00 am-1:05 pm

1 stop14h 05m

$768

HoustonPorto

HOU Houston Hobby - OPO Porto

HOUOPO

Houston Hobby

Sun 10/18

6:09 am-10:25 am

2 stops22h 16m

Porto

Mon 11/2

10:15 am-11:03 pm

2 stops18h 48m

$775

HoustonPorto

HOU Houston Hobby - OPO Porto

HOUOPO

Houston Hobby

Wed 11/11

10:27 am-8:15 am

2 stops15h 48m

Porto

Tue 11/17

11:15 am-11:21 pm

2 stops18h 06m

$784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Houston to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Houston, with most prices found around $682. If you aren’t able to travel during the month of January, then book flights to Porto from Houston during March instead. Flights to Porto in March, while not as cheap as those in January, still average around $700.

Cheap Houston to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Porto

Best Price Found

$339

Fastest flight time

15h 10m

Direct flights

None
The best one-way flight to Porto from Houston in the past 72 hours is $339. The best round-trip flight deal from Houston to Porto found on momondo in the last 72 hours is $708.
The fastest flight from Houston to Porto takes 15h 10m
There are no direct flights from Houston to Porto. There are no popular flight routes from Houston to Porto.
Search flight deals

Frequently asked questions about flying from Houston to Porto

  • How far is Houston to Porto by plane?

    A flight from Houston to Porto will travel around 4740.9 mi. A reasonable flight in good conditions will take 15h 10m.

  • When did momondo last update prices for flights from Houston to Porto Airport?

    Prices for flights from Houston to Porto Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston to Porto Airport?

  • How old do you have to be to fly from Houston to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Porto

Compare and see reviews for airlines that fly from Houston to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $476Free CancellationRating
7.8
1,570 reviews
Search KLM flights
DeltaPriceFrom $484Free CancellationRating
7.8
8,533 reviews
Search Delta flights
United AirlinesPriceFrom $657Free CancellationRating
7.4
10,146 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Aveiro
Braga
Pinhao
Matosinhos
Esposende
Chaves
Arcos de Valdevez
Viseu
Espinho
Guimarães
Lamego
Ponte de Lima
Mesao Frio
Penafiel
Caminha
Baiao
Mira

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Porto?

Finding the right flight to Porto from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

Can I find flights from Houston to Porto with flexible booking policies on momondo?

Flights from Houston to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Houston to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Houston to Porto.

I’m not ready to book a flight from Houston to Porto right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 9/30
Wed 10/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal