Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Graz to Houston from $993

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Graz to Houston departing on 9/2. 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
1 adult, Economy, 0 bags

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 Graz to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 1:35 pm
GRZ
-
IAH
14h 35m
1 stop
United Airlines Logo
4:40 pm - 12:35 pm
IAH
-
GRZ
12h 55m
1 stop
$993United Airlines
Wed, Sep 2 - Sun, Sep 6
United Airlines Logo
6:00 am - 5:19 pm
GRZ
-
IAH
18h 19m
2 stops
United Airlines Logo
10:57 am - 12:35 pm
IAH
-
GRZ
18h 38m
2 stops
$998United Airlines
Wed, Sep 2 - Sun, Sep 6
Lufthansa Logo
2:45 pm - 12:34 am
GRZ
-
IAH
16h 49m
2 stops
Lufthansa Logo
4:40 pm - 12:35 pm
IAH
-
GRZ
12h 55m
1 stop
$1,002Lufthansa
Mon, Jul 6 - Mon, Jul 13
Lufthansa Logo
7:00 pm - 5:55 pm
GRZ
-
IAH
29h 55m
1 stop
Lufthansa Logo
4:40 pm - 4:10 pm
IAH
-
GRZ
16h 30m
1 stop
$1,030Lufthansa
Mon, Jul 6 - Mon, Jul 13
Multiple Airlines Logo
10:25 am - 11:10 am
GRZ
-
IAH
31h 45m
2 stops
Multiple Airlines Logo
7:20 am - 9:45 am
IAH
-
GRZ
19h 25m
2 stops
$1,287Multiple Airlines
Tue, Jun 16 - Sat, Jun 20
Multiple Airlines Logo
7:15 pm - 7:38 pm
GRZ
-
IAH
55h 23m
2 stops
Multiple Airlines Logo
10:00 am - 9:45 am
IAH
-
GRZ
16h 45m
2 stops
$1,300Multiple Airlines
Sun, Jun 21 - Fri, Jun 26
Multiple Airlines Logo
10:25 am - 5:55 pm
GRZ
-
IAH
14h 30m
1 stop
Multiple Airlines Logo
4:40 pm - 12:40 pm
IAH
-
GRZ
13h 00m
1 stop
$1,361Multiple Airlines
Tue, Jun 16 - Sat, Jun 20
Multiple Airlines Logo
2:45 pm - 12:45 am
GRZ
-
IAH
17h 00m
2 stops
Multiple Airlines Logo
4:40 pm - 12:40 pm
IAH
-
GRZ
13h 00m
1 stop
$1,366Multiple Airlines
Tue, Jun 16 - Sat, Jun 20
Multiple Airlines Logo
7:15 pm - 7:38 pm
GRZ
-
IAH
55h 23m
2 stops
Multiple Airlines Logo
7:20 am - 9:45 am
IAH
-
GRZ
19h 25m
2 stops
$1,395Multiple Airlines
Sun, Jun 21 - Fri, Jun 26
Multiple Airlines Logo
7:15 pm - 1:35 pm
GRZ
-
IAH
25h 20m
1 stop
Multiple Airlines Logo
10:00 am - 9:45 am
IAH
-
GRZ
16h 45m
2 stops
$1,423Multiple Airlines
Sun, Jun 21 - Fri, Jun 26

United Airlines flights from Graz to Houston George Bush Intcntl Airport

Our best United Airlines deals on Graz to Houston George Bush Intcntl Airport flight tickets
United Airlines
Sep 2
GRZ6:00 amGraz Thalerhof
14h 35m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Sep 6
IAH4:40 pmHouston George Bush Intcntl
12h 55m
1 stop
GRZ12:35 pmGraz Thalerhof
$993
United Airlines
Sep 2
GRZ6:00 amGraz Thalerhof
18h 19m
2 stops
IAH5:19 pmHouston George Bush Intcntl
Sep 6
IAH10:57 amHouston George Bush Intcntl
18h 38m
2 stops
GRZ12:35 pmGraz Thalerhof
$998
United Airlines
Sep 24
GRZ1:15 pmGraz Thalerhof
26h 02m
2 stops
IAH8:17 amHouston George Bush Intcntl
Oct 3
IAH8:20 pmHouston George Bush Intcntl
36h 50m
2 stops
GRZ4:10 pmGraz Thalerhof
$2,015

Lufthansa flights from Graz to Houston George Bush Intcntl Airport

Our best Lufthansa deals on Graz to Houston George Bush Intcntl Airport flight tickets
Lufthansa
Jul 6
GRZ2:45 pmGraz Thalerhof
16h 49m
2 stops
IAH12:34 amHouston George Bush Intcntl
Jul 13
IAH4:40 pmHouston George Bush Intcntl
12h 55m
1 stop
GRZ12:35 pmGraz Thalerhof
$1,002
Lufthansa
Jul 6
GRZ7:00 pmGraz Thalerhof
29h 55m
1 stop
IAH5:55 pmHouston George Bush Intcntl
Jul 13
IAH4:40 pmHouston George Bush Intcntl
16h 30m
1 stop
GRZ4:10 pmGraz Thalerhof
$1,030
Lufthansa
Jun 21
GRZ7:15 pmGraz Thalerhof
25h 20m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Jun 26
IAH6:20 pmHouston George Bush Intcntl
32h 25m
1 stop
GRZ9:45 amGraz Thalerhof
$1,531

momondo Fare Finder

 
Customize your flight search to find flights from Graz to Houston George Bush Intcntl Airport 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 June 4, 2026.
Use the filters below to find and compare flights from Graz to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Wed 9/2

6:00 am-1:35 pm

1 stop14h 35m

Houston George Bush Intcntl

Sun 9/6

4:40 pm-12:35 pm

1 stop12h 55m

$993

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Wed 9/2

6:00 am-5:19 pm

2 stops18h 19m

Houston George Bush Intcntl

Sun 9/6

10:57 am-12:35 pm

2 stops18h 38m

$998

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Mon 7/6

2:45 pm-12:34 am

2 stops16h 49m

Houston George Bush Intcntl

Mon 7/13

4:40 pm-12:35 pm

1 stop12h 55m

$1,002

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Mon 7/6

7:00 pm-5:55 pm

1 stop29h 55m

Houston George Bush Intcntl

Mon 7/13

4:40 pm-4:10 pm

1 stop16h 30m

$1,030

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Tue 6/16

10:25 am-11:10 am

2 stops31h 45m

Houston George Bush Intcntl

Sat 6/20

7:20 am-9:45 am

2 stops19h 25m

$1,287

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Sun 6/21

7:15 pm-7:38 pm

2 stops55h 23m

Houston George Bush Intcntl

Fri 6/26

10:00 am-9:45 am

2 stops16h 45m

$1,300

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Tue 6/16

10:25 am-5:55 pm

1 stop14h 30m

Houston George Bush Intcntl

Sat 6/20

4:40 pm-12:40 pm

1 stop13h 00m

$1,361

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Tue 6/16

2:45 pm-12:45 am

2 stops17h 00m

Houston George Bush Intcntl

Sat 6/20

4:40 pm-12:40 pm

1 stop13h 00m

$1,366

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Sun 6/21

7:15 pm-7:38 pm

2 stops55h 23m

Houston George Bush Intcntl

Fri 6/26

7:20 am-9:45 am

2 stops19h 25m

$1,395

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Sun 6/21

7:15 pm-1:35 pm

1 stop25h 20m

Houston George Bush Intcntl

Fri 6/26

10:00 am-9:45 am

2 stops16h 45m

$1,423

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Graz to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Graz to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Graz to Houston George Bush Intcntl Airport (GRZ to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Graz to Houston George Bush Intcntl Airport

Fastest flight time

16h 49m

Direct flights

None
The fastest flight from Graz to Houston George Bush Intcntl Airport takes 16h 49m
There are no direct flights from Graz to Houston George Bush Intcntl Airport. There are no popular flight routes from Graz to Houston George Bush Intcntl Airport.
Search flight deals

Frequently asked questions about flying from Graz to Houston George Bush Intcntl Airport

  • How far is Graz Thalerhof to Houston George Bush Intcntl by plane?

    A flight from Graz Thalerhof to Houston George Bush Intcntl will travel around 5592.4 mi. Typically, this will take 16h 49m by plane in normal conditions.

  • When did momondo last update prices for flights from Graz Thalerhof Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Graz Thalerhof Airport to Houston George Bush Intcntl Airport were last updated today.

  • How old do you have to be to fly from Graz Thalerhof Airport to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Graz Thalerhof Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents required for your trip to Houston George Bush Intcntl 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 Houston George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Graz to Houston George Bush Intcntl Airport

  • How do I get Price Alerts for flights from Graz to Houston George Bush Intcntl Airport?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Graz from Houston George Bush Intcntl Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Graz to Houston George Bush Intcntl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Humble
Conroe
Spring
Cypress
Montgomery
Jersey Village
Tomball
Livingston

Why use momondo?

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

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 Graz to Houston for you.

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

Yes. momondo enables you to select and highlight flights to Houston from Graz with this policy.

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

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

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

If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from Graz and alert you when they change.

An easier way to manage your Houston George Bush Intcntl Airport 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
Sat 7/4
Sat 7/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston