HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Prague

$178+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PRG
Mar 13 — Mar 201
Thu 3/13
Thu 3/20
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.

The best prices from Washington, D.C. Dulles Intl to Václav Havel Prague are usually found in January or February, booked 69 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap 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 March 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$580
(Icelandair)

One-way from

$178
(oojo)

Popular in

June

Cheapest in

January

Average price

$706
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. 21% potential increase in price ($223 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find 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 March 8, 2025.

This Icelandair deal was found by Cheapflights users on 3/7. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2811:15 pmIAD - PRG
1 stop31h 50mIcelandair
Sun 6/82:00 pmPRG - IAD
1 stop14h 10mIcelandair
Deal found 3/7$580
This Booking.com deal was found by Cheapflights users on 3/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/267:25 pmIAD - PRG
1 stop19h 10mBritish Airways
Sat 5/1011:00 amPRG - IAD
1 stop12h 30mBritish Airways
Deal found 3/7$581
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/612:11 pmIAD - PRG
2 stops16h 19mDelta
Tue 5/1311:00 amPRG - IAD
2 stops17h 54mDelta
Deal found 3/6$582
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/224:35 pmIAD - PRG
1 stop16h 15mAmerican Airlines
Tue 4/296:40 amPRG - IAD
2 stops15h 42mAmerican Airlines
Deal found 3/7$585
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/308:45 pmIAD - PRG
1 stop15h 40mSWISS
Sat 4/52:55 pmPRG - IAD
1 stop31h 20mSWISS
Deal found 3/7$589
This Gotogate deal was found by Cheapflights users on 3/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/223:55 pmIAD - PRG
2 stops12h 55mAir Canada
Tue 4/296:00 amPRG - IAD
2 stops15h 13mAir Canada
Deal found 3/7$590
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2110:35 amIAD - PRG
2 stops24h 30mMultiple Airlines
Tue 3/259:45 amPRG - IAD
1 stop12h 40mMultiple Airlines
Deal found 3/7$595
This FlightHub deal was found by Cheapflights users on 3/7. 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.
Sat 5/1710:05 pmIAD - PRG
1 stop16h 40mScandinavian Airlines
Thu 5/228:55 pmPRG - IAD
1 stop29h 04mScandinavian Airlines
Deal found 3/7$597
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/310:20 pmIAD - PRG
1 stop11h 40mUnited Airlines
Tue 5/136:00 amPRG - IAD
2 stops21h 08mUnited Airlines
Deal found 3/6$614
This deal was found by Cheapflights users on 3/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/136:10 pmIAD - PRG
1 stop10h 45mLufthansa
Wed 4/231:35 pmPRG - IAD
1 stop11h 50mLufthansa
Deal found 3/7$629
This Travelocity deal was found by Cheapflights users on 3/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:20 pmIAD - PRG
1 stop11h 50mAer Lingus
Thu 6/1211:50 amPRG - IAD
1 stop13h 05mAer Lingus
Deal found 3/7$680
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/85:00 pmIAD - PRG
1 stop13h 30mTAP AIR PORTUGAL
Tue 7/157:30 pmPRG - IAD
1 stop25h 50mTAP AIR PORTUGAL
Deal found 3/7$690

Find flights from Dulles Intl to Prague within your budget

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 March 8, 2025.

Fly from

Dulles Intl

Fly to

Prague

Route

Depart

Return

Price

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Wed 5/28

11:15 pm-1:05 pm

1 stop31h 50m

Václav Havel Prague

Sun 6/8

2:00 pm-10:10 pm

1 stop14h 10m

$580

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sat 4/26

7:25 pm-8:35 pm

1 stop19h 10m

Václav Havel Prague

Sat 5/10

11:00 am-5:30 pm

1 stop12h 30m

$581

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Tue 5/6

12:11 pm-10:30 am

2 stops16h 19m

Václav Havel Prague

Tue 5/13

11:00 am-10:54 pm

2 stops17h 54m

$582

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Tue 4/22

4:35 pm-2:50 pm

1 stop16h 15m

Václav Havel Prague

Tue 4/29

6:40 am-4:22 pm

2 stops15h 42m

$585

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 3/30

8:45 pm-6:25 pm

1 stop15h 40m

Václav Havel Prague

Sat 4/5

2:55 pm-4:15 pm

1 stop31h 20m

$589

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Tue 4/22

3:55 pm-10:50 am

2 stops12h 55m

Václav Havel Prague

Tue 4/29

6:00 am-3:13 pm

2 stops15h 13m

$590

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 3/21

10:35 am-4:05 pm

2 stops24h 30m

Václav Havel Prague

Tue 3/25

9:45 am-5:25 pm

1 stop12h 40m

$595

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sat 5/17

10:05 pm-8:45 pm

1 stop16h 40m

Václav Havel Prague

Thu 5/22

8:55 pm-7:59 pm

1 stop29h 04m

$597

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sat 5/3

10:20 pm-4:00 pm

1 stop11h 40m

Václav Havel Prague

Tue 5/13

6:00 am-9:08 pm

2 stops21h 08m

$614

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 4/13

6:10 pm-10:55 am

1 stop10h 45m

Václav Havel Prague

Wed 4/23

1:35 pm-7:25 pm

1 stop11h 50m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 24 results
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapOairPrice 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 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.

Travel insights for flights from Dulles Intl to Prague

Get recent, data-driven insights about flights from Dulles Intl to Prague including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Prague. Price data was last updated on February 28, 2025.

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 69 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Prague (average of $651). Flying from Washington, D.C. Dulles Intl Airport to Prague in June is currently the most expensive (average of $1,232). 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.

What is the cheapest time of day to fly from IAD to PRG?

Find hourly flight availability from Dulles Intl to Prague. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 8, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 10% on flights from Washington, D.C. Dulles Intl Airport to Prague by exploring options for tickets in the afternoon.

Rainfall in Prague by month

Plan your trip to Prague by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Prague ranges from 0.4 - 2.4 inches per month. June is typically the wettest month, when rainfall can reach 2.4 in. February is typically the driest time to visit Prague when rainfall is around 0.4 in.

Temperature in Prague by month

Plan your trip to Prague by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Prague, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 March 8, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Washington, D.C. 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.
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,024 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,322 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,566 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,649 reviews
Delta
8.0
Very good
8,024 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 $580. Other airlines that can offer you cheap pricing are British Airways, from $581, and Delta, from $582. Icelandair is priced at 30% 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 $178. However, be on the lookout for offers from TAP AIR PORTUGAL and Turkish Airlines, 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Prague (average of $651). Flying from Washington, D.C. Dulles Intl Airport to Prague in June is currently the most expensive (average of $1,232). 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
Reagan-National 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 March 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$441Average$537FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$459Average$775FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$526Average$878FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$530Average$748FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$554Average$608FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$554Average$784FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$571Average$983FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$581Average$974FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$589Average$1,247FlexibilityNo cancel feeOn-time78%
DeltaCheapest$599Average$1,038FlexibilityNo 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.