CA $492 Cheap Flights from Houston (IAH) to Lisbon (LIS)

View CA $492 flight on Mon, Dec 28, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Humberto Delgado Airport (LIS)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Houston (IAH) to Lisbon (LIS)

Prices were available within the past 7 days and start at CA $492 for one-way flights and CA $1,121 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,121 Roundtrip, found 6 hours ago
CA $1,121
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,121 found 6 hours ago
Delta
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,128 Roundtrip, found 6 hours ago
CA $1,128
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,128 found 6 hours ago
Delta
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,131 Roundtrip, found 6 hours ago
CA $1,131
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,131 found 6 hours ago
KLM
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,134 Roundtrip, found 6 hours ago
CA $1,134
Roundtrip
found 6 hours ago
Select KLM flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,134 found 6 hours ago
Delta
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,134 Roundtrip, found 6 hours ago
CA $1,134
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,134 found 6 hours ago
Delta
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,138 Roundtrip, found 6 hours ago
CA $1,138
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,138 found 6 hours ago
Air Canada
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,151 Roundtrip, found 6 hours ago
CA $1,151
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,151 found 6 hours ago
American Airlines
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,157 Roundtrip, found 6 hours ago
CA $1,157
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,157 found 6 hours ago
British Airways
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,281 Roundtrip, found 6 hours ago
CA $1,281
Roundtrip
found 6 hours ago
Select British Airways flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,281 found 6 hours ago
United
Wed, May 6 - Tue, May 12
IAH
Houston
LIS
Lisbon
CA $1,366 Roundtrip, found 6 hours ago
CA $1,366
Roundtrip
found 6 hours ago
Select United flight, departing Wed, May 6 from Houston to Lisbon, returning Tue, May 12, priced at CA $1,366 found 6 hours ago

Find the cheapest month to fly from Houston (IAH) to Lisbon (LIS)

January is typically the cheapest month to fly

From CA $770 - CA $1,424 per traveller.

Frequently asked questions

How much is a flight from Houston Airport to Lisbon Airport?
Round-trip tickets between Houston Airport and Lisbon Airport start from CA $1,121. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAH to Lisbon Airport?
Most flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from IAH to LIS that have flexible change policies?
Many airlines will allow you to move your flight without charging a fee. All you pay is any additional cost for the new flight. When looking for Houston Airport to LIS flights, you'll see a "No change fees" box for you to pick.
How many hours is the flight from Houston Airport to Humberto Delgado Airport (LIS)?
Averaging 13 hours and 12 minutes, the flight from George Bush Intercontinental Airport (IAH) to Humberto Delgado Airport (LIS) is a long one. To make your journey more relaxing, remember to pack a good travel pillow and a set of earplugs.
How far is the flight from George Bush Intercontinental Airport (IAH) to LIS?
The distance is around 7,700 kilometres. Eye mask? Check. Noise-cancelling headphones? Check. You'll need to pack all the essentials for this long-haul Houston to Lisbon District flight.
Which airlines fly direct from Houston Airport to Humberto Delgado Airport (LIS)?
You won't find any airlines flying directly between Houston Airport and Lisbon Airport, so be ready to make at least one stop on your journey. A layover can be a welcome way to break up a trip!
Are George Bush Intercontinental Airport (IAH) to Lisbon/Portela Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Houston Airport to LIS at the last minute could be your ticket to an awesome deal. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Brussels Airlines, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
CA $1,120
Distance
7632 km

Explore a world of travel with Expedia

*Available to Expedia members.