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Flight Deals from Porto to Houston from $725

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Stops

  • Up to 1 stop
    $871
  • Up to 2 stops
    $876

Airlines

  • American Airlines
    $2142
  • British Airways
    $1151
  • Brussels Airlines
    $881
  • IBERIA
    $1030
  • Lufthansa
    $871
  • SWISS
    $885
  • TAP Portugal
    $1252
  • Turkish Airlines
    $969

Cabin Class

  • Economy
    $871

Departure Airports

  • Francisco de Sá Carneiro Airport
    $871

Arrival Airports

  • George Bush Intercontinental Houston Airport
    $871

Layover Airports

  • Adolfo Suárez Madrid–Barajas Airport
    $1030
  • Chicago O Hare Airport
    $876
  • Frankfurt am Main Airport
    $876
  • General Edward Lawrence Logan International Airport
    $1252
  • Humberto Delgado Airport (Lisbon Portela Airport)
    $1389
  • Istanbul Airport
    $969
  • London Heathrow Airport
    $1045
  • Miami International Airport
    $1030
  • Montreal Trudeau Airport
    $871
  • Munich Airport
    $871
  • New York LaGuardia Airport
    $885
  • Newark Liberty Airport
    $876
  • Reagan Washington National Airport
    $1465
  • Washington Dulles Airport
    $885
  • Zürich Airport
    $885

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On average save $240 per traveler
Lufthansa Logo
Lufthansa

09/23/25

OPO
6h 52m
YUL

09/23/25

IAH
Lufthansa Logo
Lufthansa

09/29/25

IAH
30h 35m
MUC

09/30/25

OPO
$871
Lufthansa Logo
Lufthansa

09/23/25

OPO
11h 16m
FRA
ORD

09/23/25

IAH
Lufthansa Logo
Lufthansa

09/29/25

IAH
17h 25m
EWR

09/30/25

OPO
$876
Brussels Airlines Logo
Brussels Airlines

09/23/25

OPO
11h 9m
YUL
ORD

09/23/25

IAH
Brussels Airlines Logo
Brussels Airlines

09/29/25

IAH
20h 20m
EWR

09/30/25

OPO
$881
Lufthansa Logo
Lufthansa

09/23/25

OPO
11h 16m
FRA
ORD

09/23/25

IAH
Lufthansa Logo
Lufthansa

09/29/25

IAH
28h
ORD
FRA

09/30/25

OPO
$883
SWISS Logo
SWISS

09/23/25

OPO
11h 33m
ZRH
IAD

09/23/25

IAH
SWISS Logo
SWISS

09/29/25

IAH
21h 20m
LGA
YUL

09/30/25

OPO
$885
SWISS Logo
SWISS

09/23/25

OPO
11h 33m
ZRH
IAD

09/23/25

IAH
SWISS Logo
SWISS

09/29/25

IAH
19h 10m
EWR

09/30/25

OPO
$885
Brussels Airlines Logo
Brussels Airlines

09/23/25

OPO
9h 51m
EWR

09/23/25

IAH
Brussels Airlines Logo
Brussels Airlines

09/29/25

IAH
17h 25m
EWR

09/30/25

OPO
$898
Turkish Airlines Logo
Turkish Airlines

09/23/25

OPO
19h 50m
IST

09/24/25

IAH
Turkish Airlines Logo
Turkish Airlines

09/29/25

IAH
25h 25m
IST

09/30/25

OPO
$969
IBERIA Logo
IBERIA

09/23/25

OPO
12h 7m
MAD
MIA

09/23/25

IAH
IBERIA Logo
IBERIA

09/29/25

IAH
22h 55m
ORD
MAD

09/30/25

OPO
$1030
IBERIA Logo
IBERIA

09/23/25

OPO
12h 7m
MAD
MIA

09/23/25

IAH
IBERIA Logo
IBERIA

09/29/25

IAH
22h 55m
LHR
MAD

09/30/25

OPO
$1045
British Airways Logo
British Airways

09/23/25

OPO
11h 36m
MAD
MIA

09/23/25

IAH
British Airways Logo
British Airways

09/29/25

IAH
22h 55m
ORD
MAD

09/30/25

OPO
$1151
British Airways Logo
British Airways

09/23/25

OPO
11h 36m
MAD
MIA

09/23/25

IAH
British Airways Logo
British Airways

09/29/25

IAH
22h 55m
LHR
MAD

09/30/25

OPO
$1156
TAP Portugal Logo
TAP Portugal

09/23/25

OPO
15h 46m
EWR

09/24/25

IAH
TAP Portugal Logo
TAP Portugal

09/29/25

IAH
20h 16m
BOS

09/30/25

OPO
$1252
TAP Portugal Logo
TAP Portugal

09/23/25

OPO
13h 26m
LIS
EWR

09/23/25

IAH
TAP Portugal Logo
TAP Portugal

09/29/25

IAH
20h 16m
BOS

09/30/25

OPO
$1389
Brussels Airlines Logo
Brussels Airlines

10/03/25

OPO
9h 23m
EWR

10/03/25

IAH
Brussels Airlines Logo
Brussels Airlines

10/04/25

IAH
18h 55m
EWR

10/05/25

OPO
$1460
Brussels Airlines Logo
Brussels Airlines

10/03/25

OPO
9h 39m
EWR
DCA

10/03/25

IAH
Brussels Airlines Logo
Brussels Airlines

10/04/25

IAH
21h 45m
ORD
EWR

10/05/25

OPO
$1465
Brussels Airlines Logo
Brussels Airlines

10/03/25

OPO
9h 23m
EWR

10/03/25

IAH
Brussels Airlines Logo
Brussels Airlines

10/04/25

IAH
21h 45m
ORD
EWR

10/05/25

OPO
$1465
Lufthansa Logo
Lufthansa

10/03/25

OPO
11h 50m
FRA

10/03/25

IAH
Lufthansa Logo
Lufthansa

10/04/25

IAH
18h 55m
EWR

10/05/25

OPO
$1468
SWISS Logo
SWISS

10/03/25

OPO
12h 4m
ZRH
ORD

10/03/25

IAH
SWISS Logo
SWISS

10/04/25

IAH
20h 15m
EWR

10/05/25

OPO
$1472
Lufthansa Logo
Lufthansa

10/03/25

OPO
11h 50m
FRA

10/03/25

IAH
Lufthansa Logo
Lufthansa

10/04/25

IAH
21h 45m
ORD
EWR

10/05/25

OPO
$1473
Lufthansa Logo
Lufthansa

10/03/25

OPO
10h 14m
LIS
IAD

10/03/25

IAH
Lufthansa Logo
Lufthansa

10/04/25

IAH
21h 45m
ORD
EWR

10/05/25

OPO
$1487
SWISS Logo
SWISS

10/03/25

OPO
12h 4m
ZRH
ORD

10/03/25

IAH
SWISS Logo
SWISS

10/04/25

IAH
23h 14m
IAD
ZRH

10/05/25

OPO
$1494
IBERIA Logo
IBERIA

10/03/25

OPO
12h 7m
MAD
MIA

10/03/25

IAH
IBERIA Logo
IBERIA

10/04/25

IAH
22h 55m
LHR
MAD

10/05/25

OPO
$1496
TAP Portugal Logo
TAP Portugal

09/23/25

OPO
11h 56m
LIS
MIA

09/23/25

IAH
TAP Portugal Logo
TAP Portugal

09/29/25

IAH
22h 3m
EWR
LIS

09/30/25

OPO
$1543
TAP Portugal Logo
TAP Portugal

10/03/25

OPO
15h 42m
EWR

10/04/25

IAH
TAP Portugal Logo
TAP Portugal

10/04/25

IAH
20h 16m
BOS

10/05/25

OPO
$1551
TAP Portugal Logo
TAP Portugal

10/03/25

OPO
14h 45m
EWR

10/04/25

IAH
TAP Portugal Logo
TAP Portugal

10/04/25

IAH
26h 21m
BOS
LIS

10/05/25

OPO
$1573
TAP Portugal Logo
TAP Portugal

10/03/25

OPO
22h 50m
LIS
EWR

10/04/25

IAH
TAP Portugal Logo
TAP Portugal

10/04/25

IAH
32h 36m
BOS
LIS

10/05/25

OPO
$1595
American Airlines Logo
American Airlines

10/03/25

OPO
12h 7m
MAD
MIA

10/03/25

IAH
American Airlines Logo
American Airlines

10/04/25

IAH
22h 55m
LHR
MAD

10/05/25

OPO
$2142
IBERIA Logo
IBERIA

09/23/25

OPO
11h
MAD
ORD

09/23/25

IAH
IBERIA Logo
IBERIA

09/29/25

IAH
24h 35m
MIA
MAD

09/30/25

OPO
$3125

Top Deals on flights from Porto to Houston

Porto, PT (OPO) - Houston, US (HOU)

American Airlines Logo
American Airlines

Nov 30

OPO
33h 34m
MAD
DFW

Dec 1

IAH

as low as

$725

Porto, PT (OPO) - Houston, US (HOU)

TAP Portugal Logo
TAP Portugal

Aug 18

OPO
17h 8m
BOS

Aug 19

IAH

as low as

$795

Porto, PT (OPO) - Houston, US (HOU)

IBERIA Logo
IBERIA

Nov 30

OPO
23h 35m
BCN
LHR

Dec 1

IAH

as low as

$843

Porto, PT (OPO) - Houston, US (HOU)

TAP Portugal Logo
TAP Portugal

Jul 17

OPO
14h 3m
EWR

Jul 18

IAH

as low as

$967

Porto, PT (OPO) - Houston, US (HOU)

Turkish Airlines Logo
Turkish Airlines

Nov 30

OPO
32h 15m
IST

Dec 1

IAH

as low as

$967

Porto, PT (OPO) - Houston, US (HOU)

Lufthansa Logo
Lufthansa

Nov 30

OPO
9h 55m
MUC

Nov 30

IAH

as low as

$969

Porto, PT (OPO) - Houston, US (HOU)

American Airlines Logo
American Airlines

Jul 14

OPO
15h 9m
MAD
ORD

Jul 14

IAH

as low as

$971

Porto, PT (OPO) - Houston, US (HOU)

TAP Portugal Logo
TAP Portugal

Nov 30

OPO
38h 8m
LIS
EWR

Dec 2

IAH

as low as

$971

Porto, PT (OPO) - Houston, US (HOU)

American Airlines Logo
American Airlines

Jul 17

OPO
11h 40m
MAD
CLT

Jul 17

IAH

as low as

$971

Porto, PT (OPO) - Houston, US (HOU)

 Logo

Nov 30

OPO
11h 45m
MAD
DFW

Nov 30

IAH

as low as

$979

Porto, PT (OPO) - Houston, US (HOU)

SWISS Logo
SWISS

Nov 30

OPO
24h 54m
ZRH
IAD

Dec 1

IAH

as low as

$990

Porto, PT (OPO) - Houston, US (HOU)

Brussels Airlines Logo
Brussels Airlines

Nov 30

OPO
20h 14m
EWR

Dec 1

IAH

as low as

$990

Priceline Phone Deals

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Frequently Asked Questions

What are the cheapest and fastest flights from Porto to Houston?
The cheapest flight is with British Airways at $783, taking 22 hours 35 minutes. The fastest option is with Lufthansa at $871, taking 6 hours 52 minutes.
What are all possible destination arrival airports?
The possible destination arrival airports are George Bush Intercontinental Airport, Montreal Trudeau Airport, Frankfurt am Main Airport, Chicago O'Hare Airport, Zürich Airport, Washington Dulles Airport, and Istanbul Airport.
What is the time difference between destination and arrival?
The time difference between Porto and Houston is typically 6 hours, with Houston being behind Porto.
Is there a direct flight from Porto to Houston?
There is no direct flight available from Porto to Houston.
Are there convenient layover flights from Porto to Houston?
Yes, convenient layover flights from Porto to Houston include 1 stop options with British Airways at $783, Lufthansa at $871, Brussels Airlines at $898, Turkish Airlines at $969, and IBERIA at $1085. Additionally, there are 2 stop flights offered by Lufthansa at $876, Brussels Airlines at $881, SWISS at $885, British Airways at $945, and Finnair at $977.
What are the most convenient layover airports for the flight?
Consider layovers at Montreal Trudeau, Frankfurt am Main, Chicago O'Hare, Zurich, or London Gatwick. These offer good connections for your flight from Porto to Houston with various airlines.