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Dulles Intl

$410+ Cheap flights from Prague (PRG) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — IAD
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheap flight deals from Prague to Dulles Intl

Cheapest flights from Prague to Dulles Intl
Explore the most affordable flight options available from Prague to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Thu 9/108:30 pm
IAD
-
PRG
1 stop10h 35m
Icelandair
Deal found 7/25$590
This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Thu 9/108:30 pm
IAD
-
PRG
1 stop10h 35m
Icelandair
Deal found 7/28$611
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Sun 11/17:40 pm
IAD
-
PRG
1 stop10h 15m
Icelandair
Deal found 7/28$622
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Thu 11/57:40 pm
IAD
-
PRG
1 stop10h 15m
Icelandair
Deal found 7/28$623
This Icelandair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Thu 11/57:40 pm
IAD
-
PRG
1 stop10h 15m
Icelandair
Deal found 7/28$624
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:40 pm
PRG
-
IAD
1 stop31h 30m
TAP AIR PORTUGAL
Tue 10/65:05 pm
IAD
-
PRG
1 stop13h 25m
TAP AIR PORTUGAL
Deal found 7/25$626
This FlightHub deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:40 pm
PRG
-
IAD
1 stop12h 55m
TAP AIR PORTUGAL
Wed 10/75:45 pm
IAD
-
PRG
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 7/25$644
This FlightHub deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:40 pm
PRG
-
IAD
1 stop12h 55m
TAP AIR PORTUGAL
Mon 10/510:35 pm
IAD
-
PRG
1 stop31h 55m
TAP AIR PORTUGAL
Deal found 7/25$648
This FlightHub deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:40 pm
PRG
-
IAD
1 stop31h 30m
TAP AIR PORTUGAL
Wed 10/75:45 pm
IAD
-
PRG
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 7/25$651
This FlightHub deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:40 pm
PRG
-
IAD
1 stop31h 30m
TAP AIR PORTUGAL
Mon 10/510:35 pm
IAD
-
PRG
1 stop31h 55m
TAP AIR PORTUGAL
Deal found 7/25$655
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1412:30 pm
PRG
-
IAD
1 stop32h 15m
TAP AIR PORTUGAL
Thu 12/315:25 pm
IAD
-
PRG
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 7/26$656

Find flight deals from Prague to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Prague (PRG) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$590
(Gotogate)

One-way from

$410
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$888
Provider with most accurate pricing for Václav Havel Prague-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Václav Havel Prague-Washington, D.C. Dulles Intl flights.
Search Deals
From Václav Havel Prague to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Václav Havel Prague to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Prague to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Prague to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Wed 9/30

1:40 pm-3:10 pm

1 stop31h 30m

Washington, D.C. Dulles Intl

Mon 10/5

10:35 pm-12:30 pm

1 stop31h 55m

$660

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 8/28

3:20 pm-5:00 pm

1 stop31h 40m

Washington, D.C. Dulles Intl

Fri 9/4

8:20 pm-8:15 pm

1 stop17h 55m

$781

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Wed 9/30

8:20 pm-5:00 pm

2 stops26h 40m

Washington, D.C. Dulles Intl

Mon 10/5

8:20 pm-2:40 pm

1 stop12h 20m

$786

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 8/28

10:20 am-5:00 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Thu 9/10

8:20 pm-8:50 am

2 stops30h 30m

$837

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Tue 8/25

6:10 am-1:35 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Tue 9/1

1:05 pm-12:40 pm

2 stops17h 35m

$902

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 9/18

2:30 pm-11:13 am

2 stops26h 43m

Washington, D.C. Dulles Intl

Fri 9/25

8:20 pm-1:55 pm

1 stop11h 35m

$903

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Mon 8/17

11:30 am-8:00 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Fri 8/28

5:20 pm-5:50 pm

1 stop18h 30m

$904
Quickest round-trip

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 8/28

6:00 am-3:01 pm

2 stops15h 01m

Washington, D.C. Dulles Intl

Fri 9/4

10:15 pm-5:50 pm

1 stop13h 35m

$905

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Wed 9/30

6:00 am-5:46 pm

2 stops17h 46m

Washington, D.C. Dulles Intl

Mon 10/5

12:25 pm-10:50 am

2 stops16h 25m

$911
Cheapest one-way

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Tue 8/18

2:45 pm-10:45 am

3 stops50h 00m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

Compare providers for flights from Prague to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Prague to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Prague-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Prague-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Prague-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Prague-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Prague-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Prague to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Prague with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Prague to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Prague to Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Prague to Washington, D.C. Dulles Intl Airport (average of $638). Flying from Prague to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Prague to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Prague to Washington, D.C. Dulles Intl Airport flights typically cost between $745 and $2,356 in August.
The cheapest round-trip price found within the last 5 days was $590 on Icelandair (Aug 28-Sep 10).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 28, 2026.
Read reviews from past customers who have flown KLM,United Airlines, andAer Lingus from Prague to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,550 reviews

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
KLM
7.8
Good
1,550 reviews
KLM
7.8
Good
1,550 reviews

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
United Airlines
7.4
Good
10,045 reviews
KLM
7.8
Good
1,550 reviews

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Aer Lingus
7.3
Good
1,682 reviews
KLM
7.8
Good
1,550 reviews

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Icelandair
7.0
Good
715 reviews
KLM
7.8
Good
1,550 reviews

Comfort

7.7

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

Find useful and relevant information for your journey from Prague to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Prague to Washington, D.C. Dulles Intl?

    Václav Havel Prague (PRG) is the airport you will fly out of if you book a flight from Prague to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Václav Havel Prague; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Prague airport to Washington, D.C. Dulles Intl. It is only a 6.9 mi journey to Václav Havel Prague (PRG) from Prague’s city center.

  • How long is the flight from Prague to Washington, D.C. Dulles Intl Airport?

    Departing from Prague to Washington, D.C. Dulles Intl Airport will take you 11h 20m. Prague and Washington, D.C. Dulles Intl Airport are separated by a distance of 4290 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Prague to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $596, Icelandair will fly you from Prague to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Aer Lingus - these airlines can fly you to your destination from $665 and $726, respectively. Icelandair is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Prague to Washington, D.C. Dulles Intl Airport one-way?

    $508 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $554 and $702, respectively.

  • Can I find deals for flights from Prague to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Prague to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Prague to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Prague to Dulles Intl.

  • Can I find deals for business class flights from Prague to Dulles Intl?

    Yes. Cheapflights offers flight deals from Prague to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Prague to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Prague to Washington, D.C. Dulles Intl Airport (average of $638). Flying from Prague to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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Alternative routes for Prague to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Prague to Baltimore flights

Top 4 airlines flying from Prague to Dulles Intl

Discover the top 4 airlines that operate flights from Prague to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$596Average$676FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$665Average$743FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$726Average$891FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$850Average$1,081FlexibilityNo cancel feeOn-time75%

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