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Cheap flights from Houston Hobby Airport to Porto from $650

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 5/18. 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

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Find the cheapest flights from Houston Hobby Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:23 pm - 10:05 pm
HOU
-
OPO
22h 42m
2 stops
Delta Logo
11:30 am - 9:32 am
OPO
-
HOU
28h 02m
2 stops
$782Delta
Tue, May 5 - Tue, May 12
Delta Logo
5:23 pm - 10:00 pm
HOU
-
OPO
22h 37m
2 stops
Delta Logo
5:00 am - 10:26 pm
OPO
-
HOU
23h 26m
2 stops
$821Delta
Wed, May 6 - Wed, May 13
Delta Logo
5:23 pm - 10:15 pm
HOU
-
OPO
22h 52m
2 stops
Delta Logo
5:00 am - 11:07 pm
OPO
-
HOU
24h 07m
2 stops
$827Delta
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
4:18 pm - 4:00 pm
HOU
-
OPO
17h 42m
2 stops
American Airlines Logo
12:25 pm - 11:47 pm
OPO
-
HOU
17h 22m
2 stops
$830American Airlines
Wed, Apr 15 - Wed, Apr 22
British Airways Logo
8:21 pm - 8:35 pm
HOU
-
OPO
18h 14m
2 stops
British Airways Logo
12:25 pm - 11:47 pm
OPO
-
HOU
17h 22m
2 stops
$858British Airways
Sun, Apr 19 - Wed, Apr 29
Delta Logo
10:05 am - 10:25 am
HOU
-
OPO
18h 20m
2 stops
Delta Logo
5:00 am - 9:35 pm
OPO
-
HOU
22h 35m
2 stops
$920Delta
Sun, Sep 6 - Thu, Sep 24
Delta Logo
5:23 pm - 10:00 pm
HOU
-
OPO
22h 37m
2 stops
Delta Logo
5:00 am - 10:26 pm
OPO
-
HOU
23h 26m
2 stops
$921Delta
Mon, May 4 - Tue, May 12
American Airlines Logo
4:15 pm - 4:00 pm
HOU
-
OPO
17h 45m
2 stops
American Airlines Logo
12:25 pm - 11:53 pm
OPO
-
HOU
17h 28m
2 stops
$927American Airlines
Mon, Aug 24 - Fri, Sep 4
Delta Logo
5:35 pm - 10:00 pm
HOU
-
OPO
22h 25m
2 stops
Delta Logo
5:55 am - 9:35 pm
OPO
-
HOU
21h 40m
2 stops
$997Delta
Sat, Sep 12 - Thu, Sep 17
Delta Logo
5:23 pm - 10:00 pm
HOU
-
OPO
22h 37m
2 stops
Delta Logo
6:15 am - 10:26 pm
OPO
-
HOU
22h 11m
2 stops
$1,017Delta
Sun, May 3 - Tue, Jun 2

British Airways flights from Houston Hobby Airport to Porto

Our best British Airways deals on Houston Hobby Airport to Porto flight tickets
British Airways
Apr 19
HOU8:21 pmHouston Hobby
18h 14m
2 stops
OPO8:35 pmPorto
Apr 29
OPO12:25 pmPorto
17h 22m
2 stops
HOU11:47 pmHouston Hobby
$858
British Airways
Sep 2
HOU6:19 pmHouston Hobby
18h 46m
2 stops
OPO7:05 pmPorto
Sep 12
OPO8:00 pmPorto
29h 51m
2 stops
HOU7:51 pmHouston Hobby
$6,333

Delta flights from Houston Hobby Airport to Porto

Our best Delta deals on Houston Hobby Airport to Porto flight tickets
Delta
May 5
HOU5:23 pmHouston Hobby
22h 42m
2 stops
OPO10:05 pmPorto
May 12
OPO11:30 amPorto
28h 02m
2 stops
HOU9:32 amHouston Hobby
$782
Delta
May 6
HOU5:23 pmHouston Hobby
22h 37m
2 stops
OPO10:00 pmPorto
May 13
OPO5:00 amPorto
23h 26m
2 stops
HOU10:26 pmHouston Hobby
$821
Delta
Apr 15
HOU5:23 pmHouston Hobby
22h 52m
2 stops
OPO10:15 pmPorto
Apr 22
OPO5:00 amPorto
24h 07m
2 stops
HOU11:07 pmHouston Hobby
$827

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 March 24, 2026.
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

Cheapest round-trip

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 5/5

5:23 pm-10:05 pm

2 stops22h 42m

Porto

Tue 5/12

11:30 am-9:32 am

2 stops28h 02m

$782

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 5/6

5:23 pm-10:00 pm

2 stops22h 37m

Porto

Wed 5/13

5:00 am-10:26 pm

2 stops23h 26m

$821

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 4/15

5:23 pm-10:15 pm

2 stops22h 52m

Porto

Wed 4/22

5:00 am-11:07 pm

2 stops24h 07m

$827
Quickest round-trip

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 4/15

4:18 pm-4:00 pm

2 stops17h 42m

Porto

Wed 4/22

12:25 pm-11:47 pm

2 stops17h 22m

$830

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 4/19

8:21 pm-8:35 pm

2 stops18h 14m

Porto

Wed 4/29

12:25 pm-11:47 pm

2 stops17h 22m

$858

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 9/6

10:05 am-10:25 am

2 stops18h 20m

Porto

Thu 9/24

5:00 am-9:35 pm

2 stops22h 35m

$920

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Mon 5/4

5:23 pm-10:00 pm

2 stops22h 37m

Porto

Tue 5/12

5:00 am-10:26 pm

2 stops23h 26m

$921

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Mon 8/24

4:15 pm-4:00 pm

2 stops17h 45m

Porto

Fri 9/4

12:25 pm-11:53 pm

2 stops17h 28m

$927

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sat 9/12

5:35 pm-10:00 pm

2 stops22h 25m

Porto

Thu 9/17

5:55 am-9:35 pm

2 stops21h 40m

$997

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 5/3

5:23 pm-10:00 pm

2 stops22h 37m

Porto

Tue 6/2

6:15 am-10:26 pm

2 stops22h 11m

$1,017

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February is, on average, the cheapest month to fly to Porto from Houston Hobby Airport, with most prices found around $550. If you aren’t able to travel during the month of February, then book flights to Porto from Houston Hobby Airport during November instead. Flights to Porto in November, while not as cheap as those in February, still average around $592.

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

Fastest flight time

17h 35m

Direct flights

None
The fastest flight from Houston Hobby Airport to Porto takes 17h 35m
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 17h 35m, 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 $490Free CancellationRating
7.8
1,477 reviews
Search KLM flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,471 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
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
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.

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