$312 Cheap Flights from Washington (IAD) to Prague (PRG)

View $312 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG)

Cheap Flights from Washington to Prague (IAD-PRG)

Prices were available within the past 7 days and start at $312 for one-way flights and $429 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, Nov 9 - Fri, Nov 14
IAD
Washington
PRG
Prague
$429 Roundtrip, found 1 hour ago
$429
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Sun, Nov 9 from Washington to Prague, returning Fri, Nov 14, priced at $429 found 1 hour ago
Scandinavian Airlines
Wed, Jan 21 - Wed, Feb 4
IAD
Washington
PRG
Prague
$436 Roundtrip, found 3 hours ago
$436
Roundtrip
found 3 hours ago
Select Scandinavian Airlines flight, departing Wed, Jan 21 from Washington to Prague, returning Wed, Feb 4, priced at $436 found 3 hours ago
Scandinavian Airlines
Tue, Mar 17 - Tue, Apr 7
IAD
Washington
PRG
Prague
$442 Roundtrip, found 6 days ago
$442
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Tue, Mar 17 from Washington to Prague, returning Tue, Apr 7, priced at $442 found 6 days ago
Scandinavian Airlines
Sat, Jan 31 - Sun, Feb 8
IAD
Washington
PRG
Prague
$465 Roundtrip, found 2 days ago
$465
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Sat, Jan 31 from Washington to Prague, returning Sun, Feb 8, priced at $465 found 2 days ago
Scandinavian Airlines
Sun, Jan 25 - Sat, Feb 14
IAD
Washington
PRG
Prague
$465 Roundtrip, found 5 days ago
$465
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Sun, Jan 25 from Washington to Prague, returning Sat, Feb 14, priced at $465 found 5 days ago
Lufthansa
Wed, Nov 26 - Fri, Dec 5
IAD
Washington
PRG
Prague
$540 Roundtrip, found 2 days ago
$540
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed, Nov 26 from Washington to Prague, returning Fri, Dec 5, priced at $540 found 2 days ago
United
Thu, Dec 4 - Thu, Dec 11
IAD
Washington
PRG
Prague
$540 Roundtrip, just found
$540
Roundtrip
just found
Select United flight, departing Thu, Dec 4 from Washington to Prague, returning Thu, Dec 11, priced at $540 just found
Delta
Thu, Jan 22 - Sat, Feb 7
IAD
Washington
PRG
Prague
$541 Roundtrip, just found
$541
Roundtrip
just found
Select Delta flight, departing Thu, Jan 22 from Washington to Prague, returning Sat, Feb 7, priced at $541 just found
Air Canada
Mon, Jan 12 - Wed, Jan 21
IAD
Washington
PRG
Prague
$542 Roundtrip, found 4 hours ago
$542
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Mon, Jan 12 from Washington to Prague, returning Wed, Jan 21, priced at $542 found 4 hours ago
American Airlines
Wed, Feb 4 - Sun, Feb 8
IAD
Washington
PRG
Prague
$544 Roundtrip, found 2 days ago
$544
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Feb 4 from Washington to Prague, returning Sun, Feb 8, priced at $544 found 2 days ago

Find the cheapest month to fly from Washington (IAD) to Prague (PRG)

November is typically the cheapest month to fly

From $414 - $972 per traveler.

Alternative airports near Prague

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

Select flight to Vaclav Havel PRG. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $640
PRG
Vaclav Havel
CheapestClosest
Average driving time to city center19 min
Flights from $640

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG) cost?
Snag a cheap one-way flight from $312 or cheap return flight from $429 from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG) 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 Vaclav Havel Airport (PRG)?
Traveling in November is a good way to save, as it's the cheapest month for flights between IAD and PRG. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from IAD to PRG. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to PRG?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the time of year and airline.*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 Vaclav Havel Airport (PRG)?
To reach Vaclav Havel Airport (PRG) without delays, pick a flight that leaves from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Vaclav Havel Airport (PRG) last-minute?
Last-minute fares from IAD to PRG are typically more expensive. To lock in the lowest rates, start searching for flights ahead of time. That being said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book an IAD to PRG flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to PRG flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and choose from our wide range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Vaclav Havel Airport (PRG)?
It's usually possible to cancel or reschedule your IAD to PRG flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Vaclav Havel
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$429
Distance
4292 mi

Book with confidence

Washington to Prague Flights

The cheapest times to fly from Washington to Prague

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 Prague are during the month of November. You can find some of the cheapest flights from Washington to Prague with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Prague

Sunday is one of the best days to book for cheap flights from Washington to Prague: 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 Prague

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 Prague in 2025. You can also book with separate airlines for your outbound and return journeys, from $312 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 Prague 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 Prague 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.

 

Washington to Prague Flights

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*Available to One Key members.