Cheap Flights from Houston George Bush Intercntl. to Lisbon

Compare Houston George Bush Intercntl. to Lisbon flight deals

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Flight deals from Houston George Bush Intercntl. to Lisbon

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. Airport to Lisbon Airport? If you want to travel next month, return fares start from $1,419. Find the lowest prices on one-way and return tickets right here.

Lisbon.$1,246 per passenger.Departing Tue, 1 Dec, returning Tue, 8 Dec.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 1 Dec, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Tue, 8 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,246, select.

Lisbon.$1,249 per passenger.Departing Wed, 10 Feb, returning Wed, 17 Feb.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Wed, 10 Feb, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Wed, 17 Feb, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,249, select.

Lisbon.$1,249 per passenger.Departing Tue, 3 Nov, returning Tue, 10 Nov.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 3 Nov, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Tue, 10 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,249, select.

Lisbon.$1,251 per passenger.Departing Tue, 12 Jan, returning Tue, 19 Jan.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 12 Jan, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Tue, 19 Jan, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,251, select.

Lisbon.$1,252 per passenger.Departing Tue, 23 Feb, returning Tue, 2 Mar.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 23 Feb, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Tue, 2 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,252, select.

Lisbon.$1,252 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 27 Oct, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Tue, 3 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,252, select.

Lisbon.$1,260 per passenger.Departing Wed, 27 Jan, returning Wed, 3 Feb.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Wed, 27 Jan, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Wed, 3 Feb, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,260, select.

Lisbon.$1,299 per passenger.Departing Wed, 25 Nov, returning Wed, 2 Dec.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Houston George Bush Intercntl. on Wed, 25 Nov, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Wed, 2 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,299, select.

Lisbon.$1,300 per passenger.Departing Tue, 2 Mar, returning Tue, 16 Mar.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 2 Mar, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Tue, 16 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,300, select.

Lisbon.$1,305 per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 13 Oct, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Tue, 20 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,305, select.

Lisbon.$1,306 per passenger.Departing Mon, 28 Sep, returning Fri, 18 Dec.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Mon, 28 Sep, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Fri, 18 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,306, select.

Lisbon.$1,320 per passenger.Departing Tue, 20 Apr, returning Thu, 29 Apr.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 20 Apr, arriving in Lisbon.Inbound indirect flight with Lufthansa, departs from Lisbon on Thu, 29 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,320, select.

Lisbon.$1,340 per passenger.Departing Tue, 29 Dec, returning Wed, 6 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Tue, 29 Dec, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 6 Jan, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,340, select.

Lisbon.$1,351 per passenger.Departing Tue, 29 Sep, returning Wed, 7 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Tue, 29 Sep, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 7 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,351, select.

Lisbon.$1,360 per passenger.Departing Mon, 19 Oct, returning Sat, 5 Dec.Return flight with Air France.Outbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Mon, 19 Oct, arriving in Lisbon.Inbound indirect flight with Air France, departs from Lisbon on Sat, 5 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,360, select.

Lisbon.$1,365 per passenger.Departing Tue, 22 Sep, returning Wed, 30 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Tue, 22 Sep, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 30 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $1,365, select.

Find the cheapest month to fly from Houston George Bush Intercntl. to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to Lisbon flights are currently cheapest in December.

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Houston George Bush Intercntl. to Lisbon: Alternative routes

Compare routes from Houston George Bush Intercntl. to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

Lisbon

8km from central Lisbon

ClosestCheapest

from $1,246

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Cascais Municipal Aerodrome

19km from central Lisbon

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Houston to Lisbon: Flight information

The things to know before you go.

Cheapest flight found	$1,246
Cheapest month to fly	December

Finding cheap flights from Houston George Bush Intercntl. to Lisbon: Frequently asked questions

How much are return flights from Houston George Bush Intercntl. to Lisbon?

The best price we found for a return flight from Houston George Bush Intercntl. to Lisbon is $1,244. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Houston George Bush Intercntl. to Lisbon?

Currently, there are no airlines that fly direct from Houston George Bush Intercntl. to Lisbon. But we found flights with one or more stops from $1,246.

How many flights are there a week from Houston George Bush Intercntl. to Lisbon?

As of July 2026, there are no flights flying from Houston George Bush Intercntl. to Lisbon.

When is the cheapest time to fly from Houston George Bush Intercntl. to Lisbon?

The cheapest month to fly from Houston George Bush Intercntl. to Lisbon is usually December.

Which upcoming date is cheapest to fly from Houston George Bush Intercntl. Airport to Lisbon Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to Lisbon Airport on Tuesday, 1 December 2026.

Can I get a direct flight from Houston George Bush Intercntl. Airport to Lisbon Airport?

No airlines currently offer direct flights between Houston George Bush Intercntl. Airport and Lisbon Airport. Most routes have one or more stops.

How can I find the best flight deal to Lisbon?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Lisbon?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Houston George Bush Intercntl. Airport to Lisbon with?

Currently, United offers the cheapest flight tickets to Lisbon.

Travelling from Houston George Bush Intercntl. Airport (IAH) to Lisbon Airport (LIS): what you need to know

Lisbon's timezone is UTC+0, which makes Lisbon six hours ahead of Houston.
Get to the airport on time so you don't miss your IAH to LIS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.
Flying during a peak time such as July? Public holidays and other high seasons can mean longer lines at security. Play it safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.
We make it a cinch to book a flight with a stopover. To see all your options for tickets from Houston George Bush Intercntl. Airport to Lisbon Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to visit the city of your choice. Worthwhile stopovers between IAH and LIS include:
- New York Newark Airport
- Boston Logan International Airport
- Washington Dulles Airport

How to find the cheapest flights from Houston George Bush Intercntl. Airport (IAH) to Lisbon Airport (LIS)

The lowest price we've seen for a one-way Houston George Bush Intercntl. Airport to Lisbon Airport flight is $608. A return ticket is currently $1,246. Depending on the availability when you book, these fares could change.
To pick up cheap tickets from IAH to LIS, book ahead. Airlines typically offer lower fares when flights are first released.
Getting cheap flights from Houston George Bush Intercntl. Airport to Lisbon Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' search function to see the lowest fares across every month and snap up a great deal.
You won't have to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll send you an update the moment a special offer becomes available on cheap flights from IAH to LIS.
Discover the right flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Houston George Bush Intercntl. Airport to Lisbon Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and number of stops.

Handy information about Houston George Bush Intercntl. Airport (IAH)

You'll find IAH at 16930 JFK Boulevard.
Of the flights that depart from Houston George Bush Intercntl. Airport, 79% arrive as scheduled at their destination.
Central Houston to Houston George Bush Intercntl. Airport is approximately 40 kilometres. Depending on traffic, it'll take you about 30 minutes to get there if you're catching a taxi, ride-sharing or driving.
The trip on public transport takes about 1 hour 10 minutes.
Looking for a convenient hotel close to IAH? If you've booked an early flight from Houston George Bush Intercntl. Airport to Lisbon Airport, these accommodation options will put you moments from your departure gate:

Arriving at Lisbon Airport (LIS)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late Houston George Bush Intercntl. Airport to Lisbon Airport flight. Reserve one of these accommodation options near LIS instead:
Go where the road takes you with a Lisbon Airport rental car. Book your wheels from Klass Wagen, Goldcar or OK Mobility and find adventure across Lisbon and beyond.
Booking your vehicle from Lisbon Airport around two weeks ahead can help you secure the lowest rate.

When to fly to Lisbon Airport (LIS)

It's time to plan your trip dates for your flight from Houston George Bush Intercntl. Airport to Lisbon Airport. August is the busiest month to visit Lisbon. If you prefer a quieter vibe, go in March.
The warmest month in Lisbon is August, with the temperature ranging between 16ºC and 29ºC. Book your flights from Houston George Bush Intercntl. Airport to Lisbon Airport in this month if you like this kind of weather.
Look for cheap tickets from IAH to LIS in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 8ºC and 16ºC on average.

Explore more of Portugal

You've visited Lisbon, now it's time to discover other corners of Portugal. Travel about 274 kilometres north to Porto to tick off its popular sights. From Ribeira District to Rio Douro and Livraria Lello, you've got a jam-packed schedule ahead.
Around 8 kilometres north-west of Lisbon, Amadora is another favourite stop in Portugal. No visit is complete without checking out Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.