HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Prague

$303+ Cheap flights from Dulles Intl (IAD) to Prague (PRG)

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PRG
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Prague 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 Dulles Intl to Prague

Cheapest flights from Dulles Intl to Prague
Explore the most affordable flight options available from Dulles Intl to Prague. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:30 pm
IAD
-
PRG
2 stops20h 10m
Scandinavian Airlines
Sun 10/258:50 pm
PRG
-
IAD
1 stop26h 25m
Scandinavian Airlines
Deal found 6/10$769
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:59 pm
IAD
-
PRG
2 stops31h 46m
Scandinavian Airlines
Mon 11/910:25 am
PRG
-
IAD
2 stops14h 45m
Scandinavian Airlines
Deal found 6/9$773
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:30 pm
IAD
-
PRG
2 stops15h 15m
Scandinavian Airlines
Wed 11/1810:25 am
PRG
-
IAD
2 stops14h 45m
Scandinavian Airlines
Deal found 6/9$774
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Sun 7/268:30 pm
IAD
-
PRG
2 stops19h 25m
Multiple Airlines
Tue 8/116:20 am
PRG
-
IAD
2 stops20h 04m
Multiple Airlines
Deal found 6/6$784
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:30 pm
IAD
-
PRG
1 stop10h 35m
Icelandair
Wed 8/192:00 pm
PRG
-
IAD
1 stop11h 20m
Icelandair
Deal found 6/8$789
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:20 pm
IAD
-
PRG
1 stop17h 10m
British Airways
Mon 12/219:35 pm
PRG
-
IAD
1 stop24h 00m
British Airways
Deal found 6/9$790
This FlightHub deal was found by Cheapflights users on 6/7. 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.
Tue 8/2510:35 pm
IAD
-
PRG
1 stop31h 55m
TAP AIR PORTUGAL
Tue 9/17:30 pm
PRG
-
IAD
1 stop25h 40m
TAP AIR PORTUGAL
Deal found 6/7$791
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:20 pm
IAD
-
PRG
2 stops40h 55m
Scandinavian Airlines
Mon 9/1410:20 am
PRG
-
IAD
1 stop12h 40m
Scandinavian Airlines
Deal found 6/10$792
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:30 pm
IAD
-
PRG
1 stop22h 55m
Turkish Airlines
Sun 11/299:30 am
PRG
-
IAD
1 stop15h 55m
Turkish Airlines
Deal found 6/9$793
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.
Sat 9/58:30 pm
IAD
-
PRG
2 stops13h 45m
Multiple Airlines
Sat 9/121:25 pm
PRG
-
IAD
2 stops35h 55m
Multiple Airlines
Deal found 6/8$794

Find flight deals from Dulles Intl to Prague

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Prague (PRG). 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 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$769
(Scandinavian Airlines)

One-way from

$303
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$903
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Václav Havel Prague flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Václav Havel Prague flights.
Search Deals
From Washington, D.C. Dulles Intl to Václav Havel Prague
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Václav Havel Prague
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 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 Dulles Intl to Prague 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 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Prague that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 12/6

1:30 pm-6:25 pm

1 stop22h 55m

Václav Havel Prague

Sat 12/12

7:20 pm-11:45 am

1 stop22h 25m

$784

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 11/6

2:30 pm-1:50 pm

1 stop17h 20m

Václav Havel Prague

Wed 11/18

7:20 pm-7:25 pm

1 stop30h 05m

$794

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 12/6

7:59 pm-5:05 pm

2 stops15h 06m

Václav Havel Prague

Sat 12/12

8:55 am-3:55 pm

1 stop13h 00m

$925

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 8/21

1:10 pm-8:55 am

2 stops13h 45m

Václav Havel Prague

Sun 8/30

12:30 pm-11:52 am

2 stops29h 22m

$972

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Wed 7/29

11:10 am-8:20 am

2 stops15h 10m

Václav Havel Prague

Sat 8/8

8:50 am-7:18 pm

2 stops16h 28m

$986
Quickest round-trip

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 7/10

6:15 pm-10:50 am

1 stop10h 35m

Václav Havel Prague

Thu 7/16

8:50 am-3:35 pm

1 stop12h 45m

$1,012

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 7/24

12:29 pm-8:20 am

2 stops13h 51m

Václav Havel Prague

Fri 7/31

6:00 am-4:41 pm

2 stops16h 41m

$1,032

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Wed 7/15

11:10 am-10:50 am

2 stops17h 40m

Václav Havel Prague

Sat 8/1

11:00 am-7:19 pm

1 stop14h 19m

$1,056

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sat 7/18

1:20 pm-1:00 pm

1 stop17h 40m

Václav Havel Prague

Sun 7/19

7:40 pm-11:35 am

1 stop21h 55m

$1,065

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sat 7/11

5:42 pm-10:50 am

2 stops35h 08m

Václav Havel Prague

Sat 7/18

1:20 pm-3:05 pm

1 stop31h 45m

$1,069

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Prague

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 Dulles Intl to Prague in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Washington, D.C. Dulles Intl Airport-Prague flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Prague flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Prague flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Prague 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 Washington, D.C. Dulles Intl Airport-Prague 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 Dulles Intl to Prague

Have a flexible travel schedule? Discover the best time to fly to Prague from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Prague

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Prague?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Prague, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Prague (average of $502). Flying from Washington, D.C. Dulles Intl Airport to Prague in June is currently the most expensive (average of $903). 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 Washington, D.C. Dulles Intl Airport to Prague?

Reviews of airlines servicing Prague

Get insights into the airlines that provide service to Prague. 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 Prague. Reviews last updated June 10, 2026.
Get a feel of what it's like to fly with SWISS,Scandinavian Airlines, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Prague by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
SWISS
7.5
Good
1,968 reviews
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Scandinavian Airlines
7.4
Good
1,815 reviews
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
United Airlines
7.4
Good
9,808 reviews
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Aer Lingus
7.3
Good
1,602 reviews
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Lufthansa
6.8
Okay
8,053 reviews
SWISS
7.5
Good
1,968 reviews

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Crew

8.3

Overall

7.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Prague. 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 into for flights to Prague from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Prague, you will be flying into Václav Havel Prague. Václav Havel Prague (PRG) is just 6.9 mi from the center of the city. Václav Havel Prague is the only Prague airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 12 airlines have flights to Václav Havel Prague from Washington, D.C. Dulles Intl on a regular basis.

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

    Airlines like Turkish Airlines, Delta, and United Airlines fly from Washington, D.C. Dulles Intl Airport to Prague in about 13h 45m. The time it takes to get you to your destination can typically vary by up to 9h 10m. The distance between Washington, D.C. Dulles Intl Airport and Prague is about 4290 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Prague round-trip from $427. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from $432, and TAP AIR PORTUGAL, from $469. Icelandair is priced at 39% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $272. However, be on the lookout for offers from United Airlines and Aer Lingus, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Prague for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Prague 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 Washington, D.C. Dulles Intl Airport to Prague?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Prague (average of $502). Flying from Washington, D.C. Dulles Intl Airport to Prague in June is currently the most expensive (average of $903). 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

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 Dulles Intl to Prague

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

Top 10 airlines flying from Dulles Intl to Prague

Discover the top 10 airlines that operate flights from Dulles Intl to Prague. 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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$427Average$582FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$432Average$500FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$469Average$750FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$486Average$715FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$545Average$597FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$561Average$775FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$564Average$788FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$566Average$821FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$594Average$762FlexibilityNo cancel feeOn-time77%
DeltaCheapest$647Average$762FlexibilityNo cancel feeOn-timeN/A

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.