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$221+ Cheap flights from Washington, D.C. (WAS) 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PRG
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Václav Havel Prague are usually found in November or March, booked 66 days in advance, depart on a Tuesday or Thursday and return on a Sunday

Cheap flight deals from Washington, D.C. to Prague

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 septiembre 17, 2025.

Round-trip from

$467
(SmartFares)

One-way from

$221
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$708
From Washington, D.C. (WAS) to Václav Havel Prague
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One-way flight from Washington, D.C. (WAS) to Václav Havel Prague
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Highest demand for flights based on searches. 15% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington, D.C. to Prague

Cheapest flights from Washington, D.C. to Prague
Explore the most affordable flight options available from Washington, D.C. to Prague. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1212:11 pmIAD - PRG
2 stops15h 34mScandinavian Airlines
lun. 11/177:20 pmPRG - IAD
2 stops46h 11mScandinavian Airlines
Deal found 9/16$467
This oojo deal was found by Cheapflights users on 9/16. 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.
mar. 12/25:30 pmIAD - PRG
1 stop12h 10mTAP AIR PORTUGAL
mié. 12/1012:30 pmPRG - IAD
1 stop14h 30mTAP AIR PORTUGAL
Deal found 9/16$469
This oojo deal was found by Cheapflights users on 9/17. 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.
mié. 12/310:30 pmIAD - PRG
1 stop13h 55mTAP AIR PORTUGAL
dom. 12/147:15 pmPRG - IAD
1 stop26h 00mTAP AIR PORTUGAL
Deal found 9/17$470
This SmartFares deal was found by Cheapflights users on 9/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/67:59 pmIAD - PRG
2 stops31h 46mScandinavian Airlines
jue. 11/207:20 pmPRG - IAD
2 stops46h 11mScandinavian Airlines
Deal found 9/17$472
This SmartFares deal was found by Cheapflights users on 9/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/211:15 pmDCA - PRG
2 stops14h 30mScandinavian Airlines
lun. 10/273:00 pmPRG - DCA
2 stops37h 02mScandinavian Airlines
Deal found 9/15$473
This SmartFares deal was found by Cheapflights users on 9/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1712:11 pmIAD - PRG
2 stops20h 09mScandinavian Airlines
lun. 11/2410:25 amPRG - IAD
2 stops14h 43mScandinavian Airlines
Deal found 9/15$473
This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/57:59 pmIAD - PRG
2 stops42h 26mScandinavian Airlines
mié. 11/1910:25 amPRG - IAD
2 stops31h 06mScandinavian Airlines
Deal found 9/16$474
This oojo deal was found by Cheapflights users on 9/17. 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.
mié. 12/1010:30 pmIAD - PRG
1 stop13h 55mTAP AIR PORTUGAL
lun. 12/1512:30 pmPRG - IAD
1 stop32h 05mTAP AIR PORTUGAL
Deal found 9/17$476
This oojo deal was found by Cheapflights users on 9/17. 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.
jue. 11/65:30 pmIAD - PRG
1 stop11h 35mTAP AIR PORTUGAL
jue. 11/207:15 pmPRG - IAD
1 stop31h 45mTAP AIR PORTUGAL
Deal found 9/17$477
This FlightHub deal was found by Cheapflights users on 9/15. 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.
mar. 11/1812:11 pmIAD - PRG
2 stops20h 09mScandinavian Airlines
lun. 11/2410:25 amPRG - IAD
1 stop12h 50mScandinavian Airlines
Deal found 9/15$478
This oojo deal was found by Cheapflights users on 9/16. 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.
mié. 11/510:30 pmIAD - PRG
1 stop30h 35mTAP AIR PORTUGAL
mié. 11/1912:30 pmPRG - IAD
1 stop32h 45mTAP AIR PORTUGAL
Deal found 9/16$481
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
dom. 10/1210:05 pmIAD - PRG
1 stop16h 00mScandinavian Airlines
mié. 10/2210:25 amPRG - IAD
1 stop15h 34mScandinavian Airlines
Deal found 9/16$482

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Prague that are best for you.

Fly from

Washington, D.C.

Fly to

Prague

Route

Depart

Return

Price

Washington, D.C.Prague

DCA - PRG

DCAPRG

Washington, D.C. Reagan-National

mar. 2/17

12:00 pm-9:45 am

2 stops15h 45m

Václav Havel Prague

mar. 3/3

10:25 am-9:54 pm

2 stops17h 29m

$471

Washington, D.C.Prague

DCA - PRG

DCAPRG

Washington, D.C. Reagan-National

mié. 1/14

11:00 am-9:45 am

2 stops16h 45m

Václav Havel Prague

mar. 1/20

10:25 am-11:08 pm

2 stops18h 43m

$484

Washington, D.C.Prague

DCA - PRG

DCAPRG

Washington, D.C. Reagan-National

mié. 1/14

11:00 am-9:45 am

2 stops16h 45m

Václav Havel Prague

lun. 1/19

10:25 am-11:08 pm

2 stops18h 43m

$514

BaltimorePrague

BWI - PRG

BWIPRG

Baltimore/Washington

mar. 11/4

8:35 pm-10:50 pm

1 stop20h 15m

Václav Havel Prague

lun. 11/10

9:35 pm-6:45 pm

1 stop27h 10m

$521

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

mar. 1/13

8:30 pm-1:55 pm

1 stop11h 25m

Václav Havel Prague

mar. 1/27

7:25 am-4:24 pm

2 stops14h 59m

$521

BaltimorePrague

BWI - PRG

BWIPRG

Baltimore/Washington

mar. 2/3

8:35 pm-10:50 pm

1 stop20h 15m

Václav Havel Prague

mar. 2/17

10:55 am-6:45 pm

1 stop13h 50m

$521

BaltimorePrague

BWI - PRG

BWIPRG

Baltimore/Washington

mié. 1/14

8:35 pm-1:15 pm

1 stop10h 40m

Václav Havel Prague

mié. 1/28

6:50 am-6:45 pm

1 stop17h 55m

$521

BaltimorePrague

BWI - PRG

BWIPRG

Baltimore/Washington

mié. 11/5

8:35 pm-10:50 pm

1 stop20h 15m

Václav Havel Prague

lun. 11/10

9:35 pm-6:45 pm

1 stop27h 10m

$521

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

mar. 12/2

6:20 pm-10:25 pm

2 stops22h 05m

Václav Havel Prague

mié. 12/10

12:10 pm-8:15 pm

1 stop14h 05m

$527

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

mar. 11/4

10:15 pm-10:25 pm

2 stops18h 10m

Václav Havel Prague

mar. 11/18

7:25 am-3:50 pm

1 stop14h 25m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Prague

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Prague. Price data was last updated on September 12, 2025.

The best time to book flights from Washington, D.C. to Prague is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Prague (average of $651). Flying from Washington, D.C. to Prague in June is currently the most expensive (average of $1,119). 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 WAS to PRG?

Find hourly flight availability from Washington, D.C. 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 septiembre 17, 2025.

It’s typically best to fly out from Washington, D.C. to Prague at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. 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 septiembre 17, 2025.
See what other customers who have flown with Scandinavian Airlines, United Airlines, and Aer Lingus from Washington, D.C. to Prague have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
8,926 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Aer Lingus
7.2
Good
1,277 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
545 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,409 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Comfort

7.3

Boarding

7.6

Food

6.7

Crew

8.0

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    Václav Havel Prague (PRG), located 6.9 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Prague. 11 airlines have flights to Václav Havel Prague from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Václav Havel Prague should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

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

    A quick flight from Washington, D.C. to Prague can take about 11h 25m. Scandinavian Airlines provides one of the quickest options available for as low as $521. The distance between Washington, D.C. and Prague is about 4290 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Washington, D.C. to Prague is Icelandair. Our recent data shows that you can find tickets from as low as $401 on this airline. Additional options worth looking into are Scandinavian Airlines and British Airways, starting at $427 and $520 round-trip. Icelandair is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from Washington, D.C. to Prague?

    While some choose either Washington, D.C. Reagan-National - Václav Havel Prague or Baltimore/Washington - Václav Havel Prague, Washington, D.C. Dulles Intl - Václav Havel Prague is the most popular route from Washington, D.C. to Prague.

  • Can I find deals for flights from Washington, D.C. to Prague that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Prague flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Prague?

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

  • Can I find deals for business class flights from Washington, D.C. to Prague?

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Prague (average of $651). Flying from Washington, D.C. to Prague in June is currently the most expensive (average of $1,119). 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 Washington, D.C. to Prague

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Prague flights
Reagan-National to Prague flights

Top 10 airlines flying from Washington, D.C. to Prague

Discover the top 10 airlines that operate flights from Washington, D.C. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$381Average$597FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$427Average$497FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$520Average$729FlexibilityNo cancel feeOn-time70%
DeltaCheapest$525Average$835FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$528Average$830FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$563Average$873FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$563Average$832FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$566Average$599FlexibilityNo cancel feeOn-time77%
SWISSCheapest$571Average$704FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$578Average$822FlexibilityNo cancel feeOn-timeN/A

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