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Cheap flights from Washington, D.C. Dulles Intl Airport to Prague from $243

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Prague departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Prague

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:19 pm - 8:20 am
IAD
-
PRG
13h 01m2 stops
Delta Logo
6:00 am - 3:35 pm
PRG
-
IAD
15h 35m1 stop
$597Delta
Tue, Mar 31 - Wed, Apr 8
Delta Logo
5:15 pm - 3:00 pm
IAD
-
PRG
15h 45m2 stops
Delta Logo
6:00 am - 4:28 pm
PRG
-
IAD
16h 28m2 stops
$601Delta
Mon, Apr 13 - Thu, Apr 30
Air Canada Logo
9:45 am - 4:05 pm
IAD
-
PRG
24h 20m2 stops
Air Canada Logo
6:50 am - 8:54 pm
PRG
-
IAD
19h 04m2 stops
$602Air Canada
Wed, Mar 4 - Fri, Mar 13
Air Canada Logo
1:13 pm - 10:50 am
IAD
-
PRG
15h 37m2 stops
Air Canada Logo
6:50 am - 11:29 am
PRG
-
IAD
34h 39m2 stops
$603Air Canada
Tue, Feb 24 - Thu, Mar 5
Air Canada Logo
9:55 am - 8:40 am
IAD
-
PRG
16h 45m2 stops
Air Canada Logo
10:25 am - 8:32 pm
PRG
-
IAD
16h 07m2 stops
$604Air Canada
Wed, Apr 1 - Wed, Apr 8
Air Canada Logo
10:09 pm - 4:05 pm
IAD
-
PRG
35h 56m2 stops
Air Canada Logo
6:50 am - 4:21 pm
PRG
-
IAD
14h 31m2 stops
$605Air Canada
Sun, Mar 1 - Wed, Mar 11
Multiple Airlines Logo
4:30 pm - 12:45 pm
IAD
-
PRG
14h 15m2 stops
Multiple Airlines Logo
7:30 pm - 7:40 pm
PRG
-
IAD
30h 10m2 stops
$606Multiple Airlines
Mon, Mar 30 - Mon, Apr 13
Turkish Airlines Logo
9:15 pm - 1:50 pm
IAD
-
PRG
34h 35m1 stop
Turkish Airlines Logo
7:25 pm - 7:20 pm
PRG
-
IAD
29h 55m1 stop
$607Turkish Airlines
Fri, Feb 27 - Sat, Mar 7
SWISS Logo
8:20 pm - 1:55 pm
IAD
-
PRG
11h 35m1 stop
SWISS Logo
9:25 am - 3:15 pm
PRG
-
IAD
11h 50m1 stop
$608SWISS
Mon, Apr 13 - Sat, Apr 25
Multiple Airlines Logo
5:45 pm - 10:50 am
IAD
-
PRG
11h 05m1 stop
Multiple Airlines Logo
10:30 am - 3:50 pm
PRG
-
IAD
11h 20m1 stop
$609Multiple Airlines
Sun, Feb 8 - Sun, Feb 15

Air Canada flights from Washington, D.C. Dulles Intl Airport to Prague

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Prague flight tickets
Air Canada
Mar 4
IAD9:45 amWashington, D.C. Dulles Intl
24h 20m
2 stops
PRG4:05 pmVáclav Havel Prague
Mar 13
PRG6:50 amVáclav Havel Prague
19h 04m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$602
Find similar
Air Canada
Feb 24
IAD1:13 pmWashington, D.C. Dulles Intl
15h 37m
2 stops
PRG10:50 amVáclav Havel Prague
Mar 5
PRG6:50 amVáclav Havel Prague
34h 39m
2 stops
IAD11:29 amWashington, D.C. Dulles Intl
$603
Find similar
Air Canada
Apr 1
IAD9:55 amWashington, D.C. Dulles Intl
16h 45m
2 stops
PRG8:40 amVáclav Havel Prague
Apr 8
PRG10:25 amVáclav Havel Prague
16h 07m
2 stops
IAD8:32 pmWashington, D.C. Dulles Intl
$604
Find similar

SWISS flights from Washington, D.C. Dulles Intl Airport to Prague

Our best SWISS deals on Washington, D.C. Dulles Intl Airport to Prague flight tickets
SWISS
Apr 13
IAD8:20 pmWashington, D.C. Dulles Intl
11h 35m
1 stop
PRG1:55 pmVáclav Havel Prague
Apr 25
PRG9:25 amVáclav Havel Prague
11h 50m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
$608
Find similar
SWISS
Feb 15
IAD5:45 pmWashington, D.C. Dulles Intl
33h 00m
1 stop
PRG8:45 amVáclav Havel Prague
Mar 1
PRG8:15 pmVáclav Havel Prague
47h 45m
2 stops
IAD2:00 pmWashington, D.C. Dulles Intl
$618
Find similar
SWISS
Mar 24
IAD11:15 pmWashington, D.C. Dulles Intl
28h 30m
2 stops
PRG8:45 amVáclav Havel Prague
Mar 30
PRG7:10 pmVáclav Havel Prague
26h 20m
2 stops
IAD3:30 pmWashington, D.C. Dulles Intl
$651
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated December 27, 2025.
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

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Tue 3/31

1:19 pm-8:20 am

2 stops13h 01m

Václav Havel Prague

Wed 4/8

6:00 am-3:35 pm

1 stop15h 35m

$597

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Mon 4/13

5:15 pm-3:00 pm

2 stops15h 45m

Václav Havel Prague

Thu 4/30

6:00 am-4:28 pm

2 stops16h 28m

$601

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Wed 3/4

9:45 am-4:05 pm

2 stops24h 20m

Václav Havel Prague

Fri 3/13

6:50 am-8:54 pm

2 stops19h 04m

$602

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Tue 2/24

1:13 pm-10:50 am

2 stops15h 37m

Václav Havel Prague

Thu 3/5

6:50 am-11:29 am

2 stops34h 39m

$603

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Wed 4/1

9:55 am-8:40 am

2 stops16h 45m

Václav Havel Prague

Wed 4/8

10:25 am-8:32 pm

2 stops16h 07m

$604

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 3/1

10:09 pm-4:05 pm

2 stops35h 56m

Václav Havel Prague

Wed 3/11

6:50 am-4:21 pm

2 stops14h 31m

$605

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Mon 3/30

4:30 pm-12:45 pm

2 stops14h 15m

Václav Havel Prague

Mon 4/13

7:30 pm-7:40 pm

2 stops30h 10m

$606

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Fri 2/27

9:15 pm-1:50 pm

1 stop34h 35m

Václav Havel Prague

Sat 3/7

7:25 pm-7:20 pm

1 stop29h 55m

$607

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Mon 4/13

8:20 pm-1:55 pm

1 stop11h 35m

Václav Havel Prague

Sat 4/25

9:25 am-3:15 pm

1 stop11h 50m

$608

Washington, D.C.Prague

IAD - PRG

IADPRG

Washington, D.C. Dulles Intl

Sun 2/8

5:45 pm-10:50 am

1 stop11h 05m

Václav Havel Prague

Sun 2/15

10:30 am-3:50 pm

1 stop11h 20m

$609

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Prague from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Prague

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Prague?

What is the cheapest month to fly to Prague?

In general, February is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Prague. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $551. If you are unable to visit Prague during the month of February, then departing from Washington, D.C. Dulles Intl Airport during the month March is also very affordable. Most momondo users find prices during this month for around $642.

What is the cheapest day to depart on your flight to Prague?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Prague is on a Tuesday. Travelers who choose to depart for Prague on a Tuesday will often find tickets for as low as $763. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Prague for around $941.

What is the cheapest time of day to depart on your flight to Prague?

According to our data, the cheapest time of day to fly to Prague is at noon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Prague at noon for as low as $747. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $893. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Prague?

You are more likely to see cheaper flights to Prague from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Prague for around $727 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Prague from Washington, D.C. Dulles Intl Airport for as low as $546 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Prague flights?

You could potentially save up to 43% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Prague flight.

How have Washington, D.C. Dulles Intl Airport to Prague flight prices changed over time?

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to Prague flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Prague

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Prague according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Prague (IAD to PRG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Prague

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Prague takes 10h 15m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Prague. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Prague.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Václav Havel Prague by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Václav Havel Prague is 4296.7 mi. Flights usually cover this in 10h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Václav Havel Prague Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Václav Havel Prague Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Václav Havel Prague Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Václav Havel Prague Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Václav Havel Prague Airport.

  • What documentation or ID do you need to fly to Václav Havel Prague Airport?

    The travel and health documents required for your trip to Václav Havel Prague Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Václav Havel Prague Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Prague?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Prague

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Prague with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $416Free CancellationRating
7.0
592 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $427Free CancellationRating
7.4
1,627 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $525Free CancellationRating
7.9
8,019 reviews
Search Delta flights
SWISSPriceFrom $526Free CancellationRating
7.5
1,821 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom $528Free CancellationRating
7.2
2,098 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $547Free CancellationRating
6.7
7,614 reviews
Search British Airways flights
Turkish AirlinesPriceFrom $561Free CancellationRating
7.3
4,117 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $563Free CancellationRating
6.8
7,653 reviews
Search Lufthansa flights
United AirlinesPriceFrom $563Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
Aer LingusPriceFrom $611Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights

Traveling to a place near Prague?

Book flights to Prague if you plan to visit one of these locations
Český Krumlov
Pilsen
Liberec

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Prague?

It is quick and easy to find Washington, D.C. to Prague flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Prague that suits you.

Can I find flights from Washington, D.C. to Prague with flexible booking policies on momondo?

Flights from Washington, D.C. to Prague with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Prague?

Once you have performed a search for Washington, D.C. to Prague flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Prague right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Prague, momondo offers a useful price alert feature which will track prices for flights to Prague from Washington, D.C. and alert you when they change.

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Fly your favorite airline to Prague

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Lufthansa
Scandinavian Airlines
British Airways
SWISS
Aer Lingus
Delta
Icelandair
TAP AIR PORTUGAL
Air France
Turkish Airlines