$621 Cheap Flights from Washington (IAD) to Graz (GRZ)

View $621 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Graz (GRZ)

Cheap Flights from Washington to Graz (IAD-GRZ)

Prices were available within the past 7 days and start at $621 for one-way flights and $758 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Dec 31 - Thu, Jan 15
IAD
Washington
GRZ
Graz
$758 Roundtrip, found 5 days ago
$758
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Dec 31 from Washington to Graz, returning Thu, Jan 15, priced at $758 found 5 days ago
Air Canada
Wed, Dec 31 - Thu, Jan 15
IAD
Washington
GRZ
Graz
$765 Roundtrip, found 5 days ago
$765
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Dec 31 from Washington to Graz, returning Thu, Jan 15, priced at $765 found 5 days ago
Air Canada
Wed, Dec 31 - Tue, Jan 13
IAD
Washington
GRZ
Graz
$776 Roundtrip, found 5 days ago
$776
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Dec 31 from Washington to Graz, returning Tue, Jan 13, priced at $776 found 5 days ago
Air Canada
Tue, Jan 13 - Tue, Jan 27
IAD
Washington
GRZ
Graz
$778 Roundtrip, found 5 days ago
$778
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Jan 13 from Washington to Graz, returning Tue, Jan 27, priced at $778 found 5 days ago
Air Canada
Thu, Jan 1 - Thu, Jan 15
IAD
Washington
GRZ
Graz
$810 Roundtrip, found 5 days ago
$810
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Jan 1 from Washington to Graz, returning Thu, Jan 15, priced at $810 found 5 days ago
Air Canada
Thu, Jan 8 - Thu, Jan 22
IAD
Washington
GRZ
Graz
$816 Roundtrip, found 5 days ago
$816
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Jan 8 from Washington to Graz, returning Thu, Jan 22, priced at $816 found 5 days ago
United
Wed, Dec 24 - Fri, Jan 9
IAD
Washington
GRZ
Graz
$851 Roundtrip, found 5 days ago
$851
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 24 from Washington to Graz, returning Fri, Jan 9, priced at $851 found 5 days ago
Swiss International Air Lines
Thu, Feb 5 - Sun, Feb 15
IAD
Washington
GRZ
Graz
$899 Roundtrip, found 2 days ago
$899
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Thu, Feb 5 from Washington to Graz, returning Sun, Feb 15, priced at $899 found 2 days ago
Lufthansa
Thu, Feb 5 - Sun, Feb 15
IAD
Washington
GRZ
Graz
$910 Roundtrip, found 2 days ago
$910
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Feb 5 from Washington to Graz, returning Sun, Feb 15, priced at $910 found 2 days ago
Austrian Airlines
Thu, Feb 5 - Sun, Feb 15
IAD
Washington
GRZ
Graz
$1,159 Roundtrip, found 2 days ago
$1,159
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Thu, Feb 5 from Washington to Graz, returning Sun, Feb 15, priced at $1,159 found 2 days ago

Alternative airports near Graz

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Thalerhof GRZ. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $1,325
GRZ
Thalerhof
CheapestClosest
Average driving time to city center12 min
Flights from $1,325
Flights from Washington (IAD) to Graz (GRZ)
Origin airport
Washington Dulles Intl.
Destination airport
Graz
Airlines serving
Air Canada, Austrian Airlines, Lufthansa
Roundtrip price
$758
Distance
4445 mi

Washington to Graz Flights

The cheapest times to fly from Washington to Graz

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Graz are during the month of December. You can find some of the cheapest flights from Washington to Graz with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Graz

Sunday is one of the best days to book for cheap flights from Washington to Graz: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Graz

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Graz in 2025. You can also book with separate airlines for your outbound and return journeys, from $621 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Graz flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Graz airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ) cost?
Grab a cheap one-way flight from $621 or cheap return flight from $758 from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ)?
Planning your getaway for December is a good way to save, as it's the cheapest month for flights between IAD and GRZ. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAD to GRZ. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to GRZ?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ) last-minute?
Waiting until just before your trip to book a flight from IAD to GRZ generally means paying more. Although you may find some last-minute offers, they aren't always guaranteed. Keep your travel schedule open to boost your chances of landing a bargain.
Is it cheaper to book an IAD to GRZ flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to GRZ flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place takes the hassle out of travel planning. Just secure your flights and choose from our wide range of hotels, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Thalerhof Airport (GRZ)?
In most cases, you can modify or cancel your IAD to GRZ flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further information, visit our Customer Service portal.

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*Available to One Key members.