HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$421+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — IAD
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Prague to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2026.

This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/157:30 pm
PRG
-
IAD
2 stops29h 50m
Multiple Airlines
Sun 6/2111:20 pm
IAD
-
PRG
2 stops13h 30m
Multiple Airlines
Deal found 6/10$703
This Icelandair deal was found by Cheapflights users on 6/10. 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 8/212:00 pm
PRG
-
IAD
1 stop14h 15m
Icelandair
Thu 9/108:30 pm
IAD
-
PRG
1 stop10h 35m
Icelandair
Deal found 6/10$745
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/258:55 pm
PRG
-
IAD
1 stop26h 05m
Scandinavian Airlines
Thu 9/108:20 pm
IAD
-
PRG
1 stop12h 20m
Scandinavian Airlines
Deal found 6/10$767
This Mytrip deal was found by Cheapflights users on 6/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:30 pm
PRG
-
IAD
3 stops32h 45m
Multiple Airlines
Sat 10/38:30 pm
IAD
-
PRG
2 stops18h 40m
Multiple Airlines
Deal found 6/8$769
This Travelocity deal was found by Cheapflights users on 6/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:50 am
PRG
-
IAD
1 stop13h 35m
Aer Lingus
Sat 10/35:15 pm
IAD
-
PRG
1 stop11h 55m
Aer Lingus
Deal found 6/8$770
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/258:55 pm
PRG
-
IAD
1 stop26h 05m
Scandinavian Airlines
Fri 9/118:20 pm
IAD
-
PRG
1 stop31h 20m
Scandinavian Airlines
Deal found 6/10$774
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:20 am
PRG
-
IAD
1 stop12h 40m
Scandinavian Airlines
Wed 9/308:20 pm
IAD
-
PRG
1 stop17h 55m
Scandinavian Airlines
Deal found 6/9$782
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Wed 10/2111:15 pm
IAD
-
PRG
1 stop31h 50m
Icelandair
Deal found 6/12$786
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:30 pm
PRG
-
IAD
2 stops32h 45m
Multiple Airlines
Sat 7/48:30 pm
IAD
-
PRG
2 stops16h 20m
Multiple Airlines
Deal found 6/10$793
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Wed 9/309:50 pm
PRG
-
IAD
2 stops27h 20m
Multiple Airlines
Sun 10/185:15 pm
IAD
-
PRG
1 stop11h 55m
Multiple Airlines
Deal found 6/12$794
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Tue 10/68:15 pm
PRG
-
IAD
1 stop25h 15m
Multiple Airlines
Sun 10/1811:20 pm
IAD
-
PRG
2 stops30h 00m
Multiple Airlines
Deal found 6/12$813
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Thu 10/228:30 pm
IAD
-
PRG
1 stop10h 35m
Icelandair
Deal found 6/12$817

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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$703
(Mytrip)

One-way from

$445
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$795
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. 4% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 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

Thu 9/3

3:20 pm-5:00 pm

1 stop31h 40m

Washington, D.C. Dulles Intl

Sun 9/6

8:20 pm-2:40 pm

1 stop12h 20m

$823

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 8/23

10:40 am-5:25 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Sun 9/13

5:45 pm-1:35 pm

1 stop13h 50m

$846

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 10/2

6:00 am-4:05 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Fri 10/23

8:20 pm-1:55 pm

1 stop11h 35m

$846

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 8/23

10:40 am-5:25 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Thu 9/10

7:15 pm-5:05 pm

1 stop15h 50m

$846

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Wed 7/1

3:20 pm-11:35 am

1 stop26h 15m

Washington, D.C. Dulles Intl

Wed 9/2

9:45 pm-1:00 pm

1 stop33h 15m

$891

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Mon 7/6

2:20 pm-8:00 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Sun 9/6

8:20 pm-1:55 pm

1 stop11h 35m

$903

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 7/3

2:30 pm-8:00 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 9/4

5:40 pm-1:55 pm

1 stop14h 15m

$903
Quickest round-trip

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sat 7/4

2:40 pm-8:00 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 9/7

8:20 pm-1:55 pm

1 stop11h 35m

$903

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sat 7/4

2:40 pm-8:00 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Sun 9/6

8:20 pm-1:55 pm

1 stop11h 35m

$903

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 7/5

6:10 am-4:05 pm

1 stop15h 55m

Washington, D.C. Dulles Intl

Mon 9/7

8:20 pm-1:55 pm

1 stop11h 35m

$903

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June.
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 April is currently the most expensive (average of $996). 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?

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 June 12, 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
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
United Airlines
7.4
Good
9,813 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,603 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
674 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
8,056 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 5 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 12h 45m. 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 Lufthansa - these airlines can fly you to your destination from $696 and $702, respectively. Icelandair is priced at 26% 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 April is currently the most expensive (average of $996). 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
Tysons
Owings Mills
Springfield
Arlington
Reston
Rockville
Herndon
Fredericksburg
Laurel
Hyattsville
Manassas
Hanover
Chantilly
Lanham
Falls Church
Waldorf
Silver Spring
Largo
Clinton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 5 airlines flying from Prague to Dulles Intl

Discover the top 5 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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$596Average$654FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$696Average$752FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$702Average$828FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$726Average$891FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$996Average$1,081FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.