Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Houston Hobby Airport to Porto from $471

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston Hobby Airport to Porto departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Houston Hobby Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:06 pm - 10:30 amHOU-OPO
15h 24m2 stops
Multiple Airlines Logo
6:35 am - 9:46 pmOPO-HOU
20h 11m2 stops
$591Multiple Airlines
Find Deal
Wed, Mar 4 - Thu, Mar 12
Delta Logo
1:06 pm - 3:25 pmHOU-OPO
20h 19m2 stops
Delta Logo
11:15 am - 9:32 amOPO-HOU
27h 17m2 stops
$841Delta
Find Deal
Tue, Mar 3 - Sat, Mar 14
Delta Logo
5:25 am - 10:30 amHOU-OPO
23h 05m2 stops
Delta Logo
11:15 am - 9:32 amOPO-HOU
27h 17m2 stops
$891Delta
Find Deal
Tue, Mar 3 - Sat, Mar 14
KLM Logo
6:47 pm - 7:20 pmHOU-OPO
18h 33m2 stops
KLM Logo
5:00 am - 5:52 pmOPO-HOU
18h 52m2 stops
$893KLM
Find Deal
Wed, Dec 3 - Sun, Dec 7
American Airlines Logo
10:16 am - 7:40 amHOU-OPO
15h 24m2 stops
American Airlines Logo
8:40 pm - 9:23 amOPO-HOU
17h 43m2 stops
$896American Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 14
Iberia Logo
12:16 pm - 11:45 amHOU-OPO
17h 29m2 stops
Iberia Logo
8:20 am - 11:43 pmOPO-HOU
20h 23m2 stops
$1,039Iberia
Find Deal
Fri, Feb 27 - Sun, Mar 15
Iberia Logo
6:31 pm - 4:00 pmHOU-OPO
15h 29m2 stops
Iberia Logo
12:25 pm - 11:42 pmOPO-HOU
17h 17m2 stops
$1,058Iberia
Find Deal
Sun, May 3 - Tue, Jun 2
KLM Logo
6:47 pm - 3:25 pmHOU-OPO
14h 38m2 stops
KLM Logo
6:00 am - 5:33 pmOPO-HOU
17h 33m2 stops
$1,086KLM
Find Deal
Fri, Dec 5 - Sat, Dec 13
American Airlines Logo
12:16 pm - 11:45 amHOU-OPO
17h 29m2 stops
American Airlines Logo
8:20 am - 11:58 pmOPO-HOU
21h 38m2 stops
$1,567American Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
10:39 am - 10:30 amHOU-OPO
17h 51m2 stops
Delta Logo
7:35 am - 7:14 pmOPO-HOU
17h 39m2 stops
$1,814Delta
Find Deal
Wed, Dec 17 - Wed, Dec 24

Delta flights from Houston Hobby Airport to Porto

Our best Delta deals on Houston Hobby Airport to Porto flight tickets
Delta
Nov 11
HOU10:40 amHouston Hobby
17h 50m
2 stops
OPO10:30 amPorto
Nov 19
OPO6:00 amPorto
23h 07m
2 stops
HOU11:07 pmHouston Hobby
$741
Find similar
Delta
Mar 3
HOU1:06 pmHouston Hobby
20h 19m
2 stops
OPO3:25 pmPorto
Mar 14
OPO11:15 amPorto
27h 17m
2 stops
HOU9:32 amHouston Hobby
$841
Find similar
Delta
Mar 3
HOU5:25 amHouston Hobby
23h 05m
2 stops
OPO10:30 amPorto
Mar 14
OPO11:15 amPorto
27h 17m
2 stops
HOU9:32 amHouston Hobby
$891
Find similar

KLM flights from Houston Hobby Airport to Porto

Our best KLM deals on Houston Hobby Airport to Porto flight tickets
KLM
Nov 12
HOU6:48 pmHouston Hobby
14h 37m
2 stops
OPO3:25 pmPorto
Nov 19
OPO6:00 amPorto
23h 07m
2 stops
HOU11:07 pmHouston Hobby
$746
Find similar
KLM
Dec 3
HOU6:47 pmHouston Hobby
18h 33m
2 stops
OPO7:20 pmPorto
Dec 7
OPO5:00 amPorto
18h 52m
2 stops
HOU5:52 pmHouston Hobby
$893
Find similar
KLM
Dec 5
HOU6:47 pmHouston Hobby
14h 38m
2 stops
OPO3:25 pmPorto
Dec 13
OPO6:00 amPorto
17h 33m
2 stops
HOU5:33 pmHouston Hobby
$1,086
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston Hobby Airport 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Houston Hobby Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 3/4

1:06 pm-10:30 am

2 stops15h 24m

Porto

Thu 3/12

6:35 am-9:46 pm

2 stops20h 11m

$591

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 3/3

1:06 pm-3:25 pm

2 stops20h 19m

Porto

Sat 3/14

11:15 am-9:32 am

2 stops27h 17m

$841

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 3/3

5:25 am-10:30 am

2 stops23h 05m

Porto

Sat 3/14

11:15 am-9:32 am

2 stops27h 17m

$891

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 12/3

6:47 pm-7:20 pm

2 stops18h 33m

Porto

Sun 12/7

5:00 am-5:52 pm

2 stops18h 52m

$893

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 3/3

10:16 am-7:40 am

2 stops15h 24m

Porto

Sat 3/14

8:40 pm-9:23 am

2 stops17h 43m

$896

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Fri 2/27

12:16 pm-11:45 am

2 stops17h 29m

Porto

Sun 3/15

8:20 am-11:43 pm

2 stops20h 23m

$1,039

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 5/3

6:31 pm-4:00 pm

2 stops15h 29m

Porto

Tue 6/2

12:25 pm-11:42 pm

2 stops17h 17m

$1,058

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Fri 12/5

6:47 pm-3:25 pm

2 stops14h 38m

Porto

Sat 12/13

6:00 am-5:33 pm

2 stops17h 33m

$1,086

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 12/3

12:16 pm-11:45 am

2 stops17h 29m

Porto

Sun 12/7

8:20 am-11:58 pm

2 stops21h 38m

$1,567

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 12/17

10:39 am-10:30 am

2 stops17h 51m

Porto

Wed 12/24

7:35 am-7:14 pm

2 stops17h 39m

$1,814

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Houston Hobby Airport 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 November is, on average, the cheapest month to fly to Porto from Houston Hobby Airport, with most prices found around $623. If you aren’t able to travel during the month of November, then book flights to Porto from Houston Hobby Airport during January instead. Flights to Porto in January, while not as cheap as those in November, still average around $682.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Wednesday when prices can be found for as low as $887. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,432. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the afternoon is the cheapest time of day to fly from Houston Hobby Airport to Porto when you can find flight prices for as low as $1,080. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,403 on average. Flights to Porto from Houston Hobby Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Houston Hobby Airport to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Houston Hobby Airport to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston Hobby Airport to Porto (HOU to OPO) flight deals and tips

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

Direct flights

None
There are no direct flights from Houston Hobby Airport to Porto. There are no popular flight routes from Houston Hobby Airport to Porto.
Search flight deals

  • How far is Houston Hobby to Porto by plane?

    A flight from Houston Hobby to Porto will travel around 4741.0 mi. Flights usually cover this in 14h 38m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston Hobby Airport to Porto Airport.

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

    The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Houston Hobby Airport to Porto?

Best airlines flying from Houston Hobby Airport to Porto

Compare and see reviews for airlines that fly from Houston Hobby Airport to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $655Free CancellationRating
7.7
1,405 reviews
Search KLM flights
United AirlinesPriceFrom $662Free CancellationRating
7.4
8,998 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
Matosinhos
Braga
Lamego
Guimarães
Esposende
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
Curia
Penafiel
Mesao Frio
Mira
Baiao

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?

Yes. momondo allows you to filter the results for Houston to Porto flights to just show those with flexible booking policies.

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

Once you have performed a search for Houston to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Porto from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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
Thu 12/4
Thu 12/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal