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Cheap flights from Graz to Houston from $983

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 9/25. 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

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Find the cheapest flights from Graz to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:10 am - 1:35 pm
GRZ
-
IAH
14h 25m
1 stop
Lufthansa Logo
3:35 pm - 2:00 pm
IAH
-
GRZ
15h 25m
1 stop
$983Lufthansa
Fri, Sep 25 - Wed, Sep 30
Lufthansa Logo
6:00 am - 1:35 pm
GRZ
-
IAH
14h 35m
1 stop
Lufthansa Logo
3:35 pm - 1:45 pm
IAH
-
GRZ
15h 10m
1 stop
$984Lufthansa
Wed, Sep 23 - Sat, Oct 3
Lufthansa Logo
6:05 am - 1:35 pm
GRZ
-
IAH
14h 30m
1 stop
Lufthansa Logo
4:40 pm - 12:35 pm
IAH
-
GRZ
12h 55m
1 stop
$988Lufthansa
Thu, Sep 24 - Sat, Oct 3
Air Canada Logo
9:50 am - 9:52 pm
GRZ
-
IAH
19h 02m
2 stops
Air Canada Logo
10:00 am - 12:35 pm
IAH
-
GRZ
19h 35m
2 stops
$991Air Canada
Thu, Sep 24 - Sat, Oct 3
United Airlines Logo
6:10 am - 1:35 pm
GRZ
-
IAH
14h 25m
1 stop
United Airlines Logo
9:35 am - 12:35 pm
IAH
-
GRZ
20h 00m
2 stops
$993United Airlines
Fri, Sep 25 - Wed, Sep 30
United Airlines Logo
6:00 am - 1:35 pm
GRZ
-
IAH
14h 35m
1 stop
United Airlines Logo
2:20 pm - 12:35 pm
IAH
-
GRZ
39h 15m
2 stops
$994United Airlines
Wed, Sep 23 - Sat, Oct 3
United Airlines Logo
6:10 am - 6:48 pm
GRZ
-
IAH
19h 38m
2 stops
United Airlines Logo
2:20 pm - 12:35 pm
IAH
-
GRZ
15h 15m
2 stops
$999United Airlines
Fri, Sep 25 - Wed, Sep 30
Air Canada Logo
9:50 am - 9:31 pm
GRZ
-
IAH
18h 41m
3 stops
Air Canada Logo
12:00 pm - 12:35 pm
IAH
-
GRZ
17h 35m
2 stops
$1,070Air Canada
Wed, Sep 23 - Sat, Oct 3
United Airlines Logo
6:05 am - 1:35 pm
GRZ
-
IAH
14h 30m
1 stop
United Airlines Logo
4:40 pm - 12:35 pm
IAH
-
GRZ
12h 55m
1 stop
$1,130United Airlines
Thu, Jun 11 - Tue, Jun 23
United Airlines Logo
6:00 am - 8:39 am
GRZ
-
IAH
33h 39m
2 stops
United Airlines Logo
4:40 pm - 12:35 pm
IAH
-
GRZ
12h 55m
1 stop
$1,135United Airlines
Sat, Jun 13 - Tue, Jun 23

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 25
GRZ6:10 amGraz Thalerhof
14h 25m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Sep 30
IAH9:35 amHouston George Bush Intcntl
20h 00m
2 stops
GRZ12:35 pmGraz Thalerhof
$993
United Airlines
Sep 23
GRZ6:00 amGraz Thalerhof
14h 35m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Oct 3
IAH2:20 pmHouston George Bush Intcntl
39h 15m
2 stops
GRZ12:35 pmGraz Thalerhof
$994
United Airlines
Sep 25
GRZ6:10 amGraz Thalerhof
19h 38m
2 stops
IAH6:48 pmHouston George Bush Intcntl
Sep 30
IAH2:20 pmHouston George Bush Intcntl
15h 15m
2 stops
GRZ12:35 pmGraz Thalerhof
$999

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
Sep 25
GRZ6:10 amGraz Thalerhof
14h 25m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Sep 30
IAH3:35 pmHouston George Bush Intcntl
15h 25m
1 stop
GRZ2:00 pmGraz Thalerhof
$983
Lufthansa
Sep 23
GRZ6:00 amGraz Thalerhof
14h 35m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Oct 3
IAH3:35 pmHouston George Bush Intcntl
15h 10m
1 stop
GRZ1:45 pmGraz Thalerhof
$984
Lufthansa
Sep 24
GRZ6:05 amGraz Thalerhof
14h 30m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Oct 3
IAH4:40 pmHouston George Bush Intcntl
12h 55m
1 stop
GRZ12:35 pmGraz Thalerhof
$988

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 April 5, 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

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Fri 9/25

6:10 am-1:35 pm

1 stop14h 25m

Houston George Bush Intcntl

Wed 9/30

3:35 pm-2:00 pm

1 stop15h 25m

$983

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Wed 9/23

6:00 am-1:35 pm

1 stop14h 35m

Houston George Bush Intcntl

Sat 10/3

3:35 pm-1:45 pm

1 stop15h 10m

$984
Quickest round-trip

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Thu 9/24

6:05 am-1:35 pm

1 stop14h 30m

Houston George Bush Intcntl

Sat 10/3

4:40 pm-12:35 pm

1 stop12h 55m

$988

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Thu 9/24

9:50 am-9:52 pm

2 stops19h 02m

Houston George Bush Intcntl

Sat 10/3

10:00 am-12:35 pm

2 stops19h 35m

$991

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Fri 9/25

6:10 am-1:35 pm

1 stop14h 25m

Houston George Bush Intcntl

Wed 9/30

9:35 am-12:35 pm

2 stops20h 00m

$993

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Wed 9/23

6:00 am-1:35 pm

1 stop14h 35m

Houston George Bush Intcntl

Sat 10/3

2:20 pm-12:35 pm

2 stops39h 15m

$994

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Fri 9/25

6:10 am-6:48 pm

2 stops19h 38m

Houston George Bush Intcntl

Wed 9/30

2:20 pm-12:35 pm

2 stops15h 15m

$999

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Wed 9/23

9:50 am-9:31 pm

3 stops18h 41m

Houston George Bush Intcntl

Sat 10/3

12:00 pm-12:35 pm

2 stops17h 35m

$1,070

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Thu 6/11

6:05 am-1:35 pm

1 stop14h 30m

Houston George Bush Intcntl

Tue 6/23

4:40 pm-12:35 pm

1 stop12h 55m

$1,130

GrazHouston

GRZ - IAH

GRZIAH

Graz Thalerhof

Sat 6/13

6:00 am-8:39 am

2 stops33h 39m

Houston George Bush Intcntl

Tue 6/23

4:40 pm-12:35 pm

1 stop12h 55m

$1,135

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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

14h 25m

Direct flights

None
The fastest flight from Graz to Houston George Bush Intcntl Airport takes 14h 25m
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 14h 25m 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
Conroe
Humble
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.

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