Find flights
Deals
When to book
FAQs & Tips

Find cheap flights from Houston to Portugal from $325

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Portugal departing on 9/8. 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.
1 adult
0 bags
Sat 6/15
Sat 6/22

Search hundreds of travel sites at once for deals on flights to Portugal

In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Portugal Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lisbon
Lisbon2 stops$825
Porto
Porto3 stops$747
Funchal
Funchal1 stop$783

Good to know

Cheapest flight

$325
Flight from Houston George Bush Airport to Porto

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Houston to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from Houston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portugal with an airline and back to Houston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portugal from Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Houston to Portugal

Recent round-trip flight deals

8/26Mon
3 stops
24h 48mIAH-OPO
9/9Mon
1 stop
23h 29mOPO-IAH
$747
8/26Mon
3 stops
24h 48mIAH-OPO
9/9Mon
2 stops
21h 25mOPO-IAH
$782
11/8Fri
2 stopsDelta
18h 05mHOU-LIS
11/18Mon
2 stopsDelta
18h 15mLIS-HOU
$825
8/5Mon
1 stopAir Canada
15h 05mIAH-LIS
8/13Tue
1 stopAir Canada
29h 56mLIS-IAH
$1,003
5/28Tue
1 stopAir Canada
18h 50mIAH-LIS
6/4Tue
1 stopAir Canada
16h 06mLIS-IAH
$1,004
6/3Mon
2 stopsUnited Airlines
15h 10mIAH-OPO
6/18Tue
2 stopsUnited Airlines
19h 55mOPO-IAH
$1,004
8/5Mon
1 stopBritish Airways
20h 25mIAH-LIS
8/12Mon
1 stopBritish Airways
25h 00mLIS-IAH
$1,006
5/29Wed
1 stopUnited Airlines
12h 36mIAH-OPO
6/12Wed
1 stopUnited Airlines
14h 20mOPO-IAH
$1,011
6/12Wed
1 stopBritish Airways
20h 25mIAH-LIS
6/19Wed
1 stopBritish Airways
16h 39mLIS-IAH
$1,013
9/8Sun
1 stopDelta
17h 40mIAH-OPO
9/27Fri
2 stopsDelta
19h 32mOPO-IAH
$1,034

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/8Sun
2 stops
29h 57mIAH-OPO
$325
9/8Sun
3 stops
32h 20mIAH-OPO
$332
9/9Mon
2 stopsBritish Airways
20h 53mHOU-LIS
$852
6/24Mon
1 stopBritish Airways
20h 25mIAH-LIS
$857
9/9Mon
2 stopsIberia
22h 54mHOU-LIS
$876
9/8Sun
2 stopsAmerican Airlines
19h 24mHOU-OPO
$888
10/26Sat
2 stopsDelta
16h 30mHOU-LIS
$924
5/27Mon
2 stopsDelta
19h 59mHOU-LIS
$960
6/20Thu
2 stopsAmerican Airlines
23h 42mHOU-OPO
$990
9/24Tue
2 stopsIberia
15h 24mHOU-OPO
$1,079

Search by stops

Search by airline

Search by price

Last minute flights from Houston to Portugal

Last minute flight, train and bus deals

5/21Tue
multi-stop
28h 25mIAH-LIS
6/4Tue
multi-stop
32h 24mLIS-IAH
$1,113
5/19Sun
multi-stop
20h 40mIAH-LIS
5/27Mon
multi-stop
48h 17mLIS-IAH
$1,114
5/19Sun
multi-stopUnited Airlines
30h 25mIAH-LIS
6/3Mon
multi-stopUnited Airlines
16h 06mLIS-IAH
$1,530
5/19Sun
multi-stopUnited Airlines
30h 25mIAH-LIS
6/3Mon
multi-stopUnited Airlines
18h 29mLIS-IAH
$1,540
5/19Sun
multi-stopBrussels Airlines
13h 37mIAH-LIS
5/25Sat
multi-stopBrussels Airlines
52h 00mLIS-IAH
$1,676
5/21Tue
multi-stopAir Canada
15h 05mIAH-LIS
6/4Tue
multi-stopAir Canada
16h 06mLIS-IAH
$1,841
5/19Sun
multi-stopBritish Airways
13h 35mIAH-LIS
5/26Sun
multi-stopBritish Airways
25h 00mLIS-IAH
$1,893
5/19Sun
multi-stopBrussels Airlines
21h 50mIAH-LIS
6/3Mon
multi-stopBrussels Airlines
30h 59mLIS-IAH
$1,899
5/18Sat
multi-stopBritish Airways
20h 25mIAH-LIS
5/27Mon
multi-stopBritish Airways
26h 35mLIS-IAH
$1,908
5/21Tue
multi-stopAir Canada
18h 50mIAH-LIS
5/26Sun
multi-stopAir Canada
26h 56mLIS-IAH
$1,919

Search by stops

Search by airline

Search by price

Flights to Portugal

Return flight deals:

Portugal - Houston

Cabin classes: