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$312+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PRG
maig 24 — maig 311
dg. 5/24
dg. 5/31
1 adult, Economy
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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 abril 24, 2026.

This FlightHub deal was found by Cheapflights users on 4/19. 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.
dv. 8/211:20 pm
IAD
-
PRG
1 stop19h 05m
Turkish Airlines
dv. 9/49:15 am
PRG
-
IAD
1 stop32h 20m
Turkish Airlines
Deal found 4/19$611
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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.
dl. 9/218:20 pm
IAD
-
PRG
1 stop12h 20m
Scandinavian Airlines
dj. 10/110:20 am
PRG
-
IAD
1 stop12h 40m
Scandinavian Airlines
Deal found 4/20$612
This oojo deal was found by Cheapflights users on 4/20. 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.
dg. 9/208:20 pm
IAD
-
PRG
1 stop12h 20m
Scandinavian Airlines
dc. 9/308:55 pm
PRG
-
IAD
1 stop26h 05m
Scandinavian Airlines
Deal found 4/20$616
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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.
dl. 10/198:20 pm
IAD
-
PRG
2 stops15h 35m
Scandinavian Airlines
dl. 11/210:25 am
PRG
-
IAD
1 stop12h 50m
Scandinavian Airlines
Deal found 4/21$619
This Justfly.com deal was found by Cheapflights users on 4/22. 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.
dc. 10/78:20 pm
IAD
-
PRG
1 stop12h 20m
Scandinavian Airlines
dg. 10/189:30 pm
PRG
-
IAD
1 stop25h 30m
Scandinavian Airlines
Deal found 4/22$621
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
dl. 5/48:20 pm
IAD
-
PRG
1 stop31h 20m
Scandinavian Airlines
dj. 5/78:55 pm
PRG
-
IAD
1 stop26h 05m
Scandinavian Airlines
Deal found 4/20$626
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
dg. 9/208:20 pm
IAD
-
PRG
1 stop12h 20m
Scandinavian Airlines
dg. 9/279:30 pm
PRG
-
IAD
1 stop25h 30m
Scandinavian Airlines
Deal found 4/22$627
This FlightHub deal was found by Cheapflights users on 4/20. 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.
dg. 8/301:20 pm
IAD
-
PRG
1 stop19h 05m
Turkish Airlines
dg. 9/63:20 pm
PRG
-
IAD
1 stop26h 15m
Turkish Airlines
Deal found 4/20$629
This oojo deal was found by Cheapflights users on 4/19. 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.
dt. 4/281:20 pm
IAD
-
PRG
1 stop19h 05m
Turkish Airlines
dt. 5/57:20 pm
PRG
-
IAD
1 stop22h 15m
Turkish Airlines
Deal found 4/19$639
This Justfly.com deal was found by Cheapflights users on 4/23. 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.
dg. 4/261:20 pm
IAD
-
PRG
1 stop19h 05m
Turkish Airlines
dt. 5/127:20 pm
PRG
-
IAD
1 stop22h 15m
Turkish Airlines
Deal found 4/23$641

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 abril 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$611
(FlightHub)

One-way from

$312
(Booking.com)

Popular in

April

Cheapest in

October

Average price

$775
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. 2% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 abril 24, 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

dg. 10/11

8:20 pm-5:55 pm

2 stops39h 35m

Václav Havel Prague

dj. 10/15

10:20 am-5:00 pm

1 stop12h 40m

$651

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dj. 8/13

10:10 pm-10:50 am

2 stops30h 40m

Václav Havel Prague

dv. 8/21

6:15 am-8:24 pm

2 stops20h 09m

$869

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dl. 5/11

7:33 pm-7:35 pm

2 stops18h 02m

Václav Havel Prague

dt. 5/26

11:00 am-6:53 pm

1 stop13h 53m

$989

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dl. 7/20

9:45 pm-7:35 pm

1 stop15h 50m

Václav Havel Prague

dc. 8/5

11:00 am-7:15 pm

1 stop14h 15m

$1,001

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dl. 7/6

7:59 pm-7:35 pm

2 stops17h 36m

Václav Havel Prague

dj. 7/16

11:00 am-7:15 pm

1 stop14h 15m

$1,006

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dg. 7/19

12:29 pm-10:30 am

2 stops16h 01m

Václav Havel Prague

dj. 8/6

6:00 am-3:35 pm

1 stop15h 35m

$1,009

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dt. 6/9

12:29 pm-9:00 am

1 stop14h 31m

Václav Havel Prague

dt. 6/23

6:00 am-4:35 pm

2 stops16h 35m

$1,031
Quickest round-trip

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

ds. 7/4

5:25 pm-10:35 am

1 stop11h 10m

Václav Havel Prague

dv. 7/17

7:30 am-2:35 pm

1 stop13h 05m

$1,070

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dg. 7/19

10:20 pm-4:05 pm

1 stop11h 45m

Václav Havel Prague

ds. 8/8

6:00 am-1:35 pm

1 stop13h 35m

$1,074

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

dt. 7/7

12:29 pm-10:50 am

2 stops16h 21m

Václav Havel Prague

ds. 7/18

6:30 am-7:15 pm

2 stops18h 45m

$1,092

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 23 resultsSorted by cheapest first
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice 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 53 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 $497). Flying from Washington, D.C. Dulles Intl Airport to Prague in April is currently the most expensive (average of $775). 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 abril 24, 2026.
Get a feel of what it's like to fly with SWISS,United Airlines, andAer Lingus 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
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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
7.6
Good
1,926 reviews
SWISS
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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
9,644 reviews
SWISS
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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
1,528 reviews
SWISS
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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
7.3
Good
1,759 reviews
SWISS
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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
7,946 reviews
SWISS
7.6
Good
1,926 reviews

Food

7.1

Boarding

7.7

Comfort

7.4

Overall

7.6

Crew

8.3

Entertainment

6.8

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. 11 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 Scandinavian Airlines, United Airlines, and Delta fly from Washington, D.C. Dulles Intl Airport to Prague in about 18h 02m. The time it takes to get you to your destination can typically vary by up to 21h 33m. 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 $427, and TAP AIR PORTUGAL, from $469. Icelandair is priced at 38% 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 Icelandair, with whom users have recently found tickets for as low as $175. However, be on the lookout for offers from British Airways and TAP AIR PORTUGAL, 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 $497). Flying from Washington, D.C. Dulles Intl Airport to Prague in April is currently the most expensive (average of $775). 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 abril 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$427Average$562FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$427Average$499FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$469Average$750FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$526Average$705FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$545Average$597FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$547Average$687FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$565Average$796FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$572Average$841FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$628Average$879FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$647Average$796FlexibilityNo cancel feeOn-timeN/A

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