$306 Find Cheap Flights from Houston to Portugal - Compare and Save

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 10/15. 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
1 adult, Economy, 0 bags

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Cheap Flights from Houston to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$697
Porto
Porto2 stops$727
Funchal
Funchal2 stops$868
Lisbon
Lisbon1 stop$697
Porto
Porto2 stops$727
Funchal
Funchal2 stops$868

Book Cheap Houston to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Portugal

Sun, Nov 1 - Thu, Nov 26
Multiple Airlines Logo
12:00 pm - 9:20 am
IAH
-
LIS
15h 20m
1 stop
Multiple Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$697Multiple Airlines
Wed, Nov 18 - Wed, Nov 25
Multiple Airlines Logo
11:50 am - 6:55 am
IAH
-
LIS
13h 05m
1 stop
Multiple Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$705Multiple Airlines
Wed, Nov 11 - Thu, Nov 19
United Airlines Logo
11:50 am - 6:55 am
IAH
-
LIS
13h 05m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$727United Airlines
Tue, Nov 10 - Wed, Nov 18
United Airlines Logo
7:30 am - 8:10 am
IAH
-
LIS
18h 40m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$728United Airlines
Tue, Nov 3 - Mon, Nov 9
British Airways Logo
12:46 pm - 9:05 am
IAH
-
LIS
14h 19m
1 stop
British Airways Logo
3:50 pm - 2:05 pm
LIS
-
IAH
28h 15m
1 stop
$738British Airways
Wed, Nov 4 - Tue, Nov 10
Delta Logo
7:10 pm - 3:10 pm
IAH
-
LIS
14h 00m
1 stop
Delta Logo
5:00 am - 10:34 pm
LIS
-
IAH
23h 34m
2 stops
$739Delta
Mon, Nov 2 - Mon, Nov 9
British Airways Logo
9:40 pm - 6:55 pm
IAH
-
LIS
15h 15m
1 stop
British Airways Logo
6:35 pm - 2:05 pm
LIS
-
IAH
25h 30m
1 stop
$742British Airways
Tue, Nov 10 - Wed, Nov 18
Air Canada Logo
11:50 am - 9:20 am
IAH
-
LIS
15h 30m
2 stops
Air Canada Logo
5:00 am - 6:27 pm
LIS
-
IAH
19h 27m
2 stops
$743Air Canada
Wed, Nov 11 - Thu, Nov 19
Delta Logo
10:05 am - 3:10 pm
HOU
-
LIS
23h 05m
2 stops
Delta Logo
5:00 am - 9:43 pm
LIS
-
HOU
22h 43m
2 stops
$744Delta
Mon, Sep 21 - Tue, Oct 6
Air Canada Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
Air Canada Logo
1:00 pm - 11:07 am
LIS
-
IAH
28h 07m
1 stop
$746Air Canada
Booking Insights

KAYAK's insights & trends for Houston to Portugal flights

Get data-powered insights and trends into flights from Houston to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Houston to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston to Portugal is January, when tickets cost $682 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,349 and $1,216 respectively.

How far in advance should I book a flight from Houston to Portugal?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to Portugal, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston to Portugal, you should book around 3 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Find deals

Good to know

Cheapest flight

$306
Flight from Houston George Bush Airport to Lisbon

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 from Houston to Portugal 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 from Houston to Portugal with an airline and back 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 from Houston to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Houston to Portugal

Cabin class types available on flights to Portugal

Cabin classes available on flights to Portugal. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights from Houston to Portugal
Business Class flights from Houston to Portugal
Premium Economy Class flights from Houston to Portugal
Economy Class flights from Houston to Portugal