Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Houston to Lisbon from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Lisbon departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Houston to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 9:20 am
IAH
-
LIS
21h 20m
2 stops
United Airlines Logo
11:25 am - 3:49 pm
LIS
-
IAH
34h 24m
2 stops
$540United Airlines
Wed, Apr 8 - Tue, Apr 14
KLM Logo
3:20 pm - 2:35 pm
IAH
-
LIS
17h 15m
1 stop
KLM Logo
5:00 am - 1:15 pm
LIS
-
IAH
14h 15m
1 stop
$541KLM
Thu, Apr 9 - Wed, Apr 22
KLM Logo
3:20 pm - 6:45 pm
IAH
-
LIS
21h 25m
1 stop
KLM Logo
5:00 am - 1:15 pm
LIS
-
IAH
14h 15m
1 stop
$542KLM
Thu, Apr 9 - Wed, Apr 22
Multiple Airlines Logo
3:30 pm - 5:55 pm
IAH
-
LIS
20h 25m
1 stop
Multiple Airlines Logo
8:55 am - 11:59 pm
LIS
-
IAH
21h 04m
2 stops
$543Multiple Airlines
Wed, Apr 22 - Wed, May 6
Multiple Airlines Logo
9:05 pm - 11:10 pm
IAH
-
LIS
20h 05m
1 stop
Multiple Airlines Logo
4:35 pm - 7:19 pm
LIS
-
IAH
32h 44m
2 stops
$544Multiple Airlines
Mon, Apr 20 - Tue, Apr 28
Delta Logo
5:05 pm - 5:30 pm
IAH
-
LIS
19h 25m
1 stop
Delta Logo
11:55 am - 11:59 pm
LIS
-
IAH
18h 04m
2 stops
$547Delta
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
3:20 pm - 10:50 pm
IAH
-
LIS
25h 30m
1 stop
Multiple Airlines Logo
6:50 pm - 1:35 pm
LIS
-
IAH
24h 45m
1 stop
$548Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Delta Logo
3:20 pm - 10:55 am
IAH
-
LIS
13h 35m
1 stop
Delta Logo
5:00 am - 6:34 pm
LIS
-
IAH
19h 34m
2 stops
$551Delta
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
10:13 am - 8:55 am
HOU
-
LIS
16h 42m
2 stops
American Airlines Logo
11:05 am - 11:58 pm
LIS
-
HOU
17h 53m
2 stops
$672American Airlines
Wed, Mar 4 - Wed, Mar 11
British Airways Logo
8:21 pm - 11:10 pm
HOU
-
LIS
20h 49m
2 stops
British Airways Logo
6:45 pm - 11:47 pm
LIS
-
HOU
35h 02m
2 stops
$706British Airways
Fri, Apr 17 - Tue, Apr 21

United Airlines flights from Houston to Lisbon

Our best United Airlines deals on Houston to Lisbon flight tickets
United Airlines
Apr 8
IAH6:00 amHouston George Bush Intcntl
21h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 14
LIS11:25 amLisbon Humberto Delgado
34h 24m
2 stops
IAH3:49 pmHouston George Bush Intcntl
$540
United Airlines
Mar 17
IAH2:45 pmHouston George Bush Intcntl
12h 25m
1 stop
LIS8:10 amLisbon Humberto Delgado
Mar 25
LIS11:55 amLisbon Humberto Delgado
17h 35m
1 stop
IAH12:30 amHouston George Bush Intcntl
$615
United Airlines
Mar 1
IAH7:35 amHouston George Bush Intcntl
18h 35m
2 stops
LIS8:10 amLisbon Humberto Delgado
Mar 7
LIS12:20 pmLisbon Humberto Delgado
35h 55m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$630

Iberia flights from Houston to Lisbon

Our best Iberia deals on Houston to Lisbon flight tickets
Iberia
Apr 23
IAH6:04 amHouston George Bush Intcntl
30h 21m
2 stops
LIS6:25 pmLisbon Humberto Delgado
Apr 29
LIS8:55 amLisbon Humberto Delgado
21h 04m
2 stops
IAH11:59 pmHouston George Bush Intcntl
$557
Iberia
Apr 24
IAH6:09 pmHouston George Bush Intcntl
23h 16m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Apr 28
LIS8:45 pmLisbon Humberto Delgado
33h 14m
2 stops
IAH11:59 pmHouston George Bush Intcntl
$569
Iberia
Apr 13
HOU4:18 pmHouston Hobby
21h 47m
2 stops
LIS8:05 pmLisbon Humberto Delgado
Apr 23
LIS8:25 amLisbon Humberto Delgado
41h 26m
2 stops
HOU7:51 pmHouston Hobby
$758

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 23, 2026.
Use the filters below to find and compare flights from Houston to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 4/8

6:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Tue 4/14

11:25 am-3:49 pm

2 stops34h 24m

$540

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 4/9

3:20 pm-2:35 pm

1 stop17h 15m

Lisbon Humberto Delgado

Wed 4/22

5:00 am-1:15 pm

1 stop14h 15m

$541

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 4/9

3:20 pm-6:45 pm

1 stop21h 25m

Lisbon Humberto Delgado

Wed 4/22

5:00 am-1:15 pm

1 stop14h 15m

$542

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 4/22

3:30 pm-5:55 pm

1 stop20h 25m

Lisbon Humberto Delgado

Wed 5/6

8:55 am-11:59 pm

2 stops21h 04m

$543

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Mon 4/20

9:05 pm-11:10 pm

1 stop20h 05m

Lisbon Humberto Delgado

Tue 4/28

4:35 pm-7:19 pm

2 stops32h 44m

$544

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 3/24

5:05 pm-5:30 pm

1 stop19h 25m

Lisbon Humberto Delgado

Tue 3/31

11:55 am-11:59 pm

2 stops18h 04m

$547

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 4/23

3:20 pm-10:50 pm

1 stop25h 30m

Lisbon Humberto Delgado

Mon 4/27

6:50 pm-1:35 pm

1 stop24h 45m

$548

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 4/9

3:20 pm-10:55 am

1 stop13h 35m

Lisbon Humberto Delgado

Tue 4/14

5:00 am-6:34 pm

2 stops19h 34m

$551

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 3/4

10:13 am-8:55 am

2 stops16h 42m

Lisbon Humberto Delgado

Wed 3/11

11:05 am-11:58 pm

2 stops17h 53m

$672

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Fri 4/17

8:21 pm-11:10 pm

2 stops20h 49m

Lisbon Humberto Delgado

Tue 4/21

6:45 pm-11:47 pm

2 stops35h 02m

$706

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Lisbon from

How to get the cheapest flight ticket from Houston to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Lisbon?

In general, January is the cheapest month to fly from Houston to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $680. If you are unable to visit Lisbon during the month of January, then departing from Houston during the month March is also very affordable. Most momondo users find prices during this month for around $694.

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $869 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Houston for as low as $604 on momondo.

Cheap Houston to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Lisbon

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Houston to Lisbon takes 13h 15m
There are no direct flights from Houston to Lisbon. There are no popular flight routes from Houston to Lisbon.
Search flight deals

  • How far is Houston to Lisbon Humberto Delgado by plane?

    A flight from Houston to Lisbon Humberto Delgado will travel around 4778.5 mi. 13h 15m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Houston to Lisbon Humberto Delgado Airport?

    Prices for flights from Houston to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Houston to Lisbon Humberto Delgado Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Houston to Lisbon

Compare and see reviews for airlines that fly from Houston to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $466Free CancellationRating
7.9
8,238 reviews
Search Delta flights
Air FrancePriceFrom $540Free CancellationRating
7.4
1,537 reviews
Search Air France flights
British AirwaysPriceFrom $559Free CancellationRating
6.7
7,761 reviews
Search British Airways flights
KLMPriceFrom $586Free CancellationRating
7.7
1,458 reviews
Search KLM flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $621Free CancellationRating
7.3
4,234 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $646Free CancellationRating
7.1
10,742 reviews
Search Air Canada flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Setúbal
Estoril
Peniche
Evora
Oeiras
Sesimbra
Leiria
Figueira da Foz
Tomar
Zambujeira do Mar
Batalha
Óbidos
Sines
Comporta
Torres Vedras
Almada

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Lisbon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Houston to Lisbon for you.

Can I find flights from Houston to Lisbon with flexible booking policies on momondo?

Yes. All flights to Lisbon from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Houston to Lisbon?

momondo provides multiple filters to help you find the best flight to Lisbon from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Lisbon right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Houston to Lisbon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lisbon and let you know when they change.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/25
Wed 4/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal