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Cheap flights from Prague to Washington, D.C. from $347

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Prague to Washington, D.C. departing on 9/18. 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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Cheap round-trip flights

TAP AIR PORTUGAL Logo
7:15 pm - 3:15 pmPRG-IAD
26h 00m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 6:25 pmIAD-PRG
13h 55m1 stop
$458TAP AIR PORTUGAL
Find Deal
Sun, Nov 23 - Wed, Dec 3
TAP AIR PORTUGAL Logo
7:15 pm - 3:15 pmPRG-IAD
26h 00m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 11:05 amIAD-PRG
30h 35m1 stop
$462TAP AIR PORTUGAL
Find Deal
Sun, Nov 23 - Wed, Dec 3
TAP AIR PORTUGAL Logo
7:15 pm - 3:15 pmPRG-IAD
26h 00m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 6:25 pmIAD-PRG
18h 55m1 stop
$469TAP AIR PORTUGAL
Find Deal
Sun, Nov 2 - Sat, Nov 15
Aer Lingus Logo
11:50 am - 6:55 pmPRG-IAD
13h 05m1 stop
Aer Lingus Logo
5:05 pm - 11:00 amIAD-PRG
11h 55m1 stop
$571Aer Lingus
Find Deal
Thu, Oct 23 - Sat, Nov 8
Aer Lingus Logo
11:40 am - 7:30 pmPRG-IAD
13h 50m1 stop
Aer Lingus Logo
5:05 pm - 11:00 amIAD-PRG
11h 55m1 stop
$602Aer Lingus
Find Deal
Sat, Dec 27 - Sat, Jan 3
Icelandair Logo
12:50 pm - 7:30 pmPRG-IAD
11h 40m1 stop
Icelandair Logo
7:40 pm - 11:55 amIAD-PRG
10h 15m1 stop
$616Icelandair
Find Deal
Fri, Oct 31 - Thu, Nov 13
Icelandair Logo
12:50 pm - 6:30 pmPRG-IAD
11h 40m1 stop
Icelandair Logo
7:40 pm - 11:55 amIAD-PRG
10h 15m1 stop
$629Icelandair
Find Deal
Fri, Dec 12 - Thu, Dec 25
Lufthansa Logo
6:00 am - 1:30 pmPRG-IAD
13h 30m1 stop
Lufthansa Logo
10:20 pm - 4:00 pmIAD-PRG
11h 40m1 stop
$658Lufthansa
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Thu, Oct 9 - Wed, Oct 22
United Airlines Logo
12:10 pm - 8:15 pmPRG-IAD
14h 05m1 stop
United Airlines Logo
5:25 pm - 1:55 pmIAD-PRG
15h 30m1 stop
$661United Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
11:50 am - 8:15 pmPRG-IAD
14h 25m1 stop
United Airlines Logo
8:30 pm - 1:55 pmIAD-PRG
11h 25m1 stop
$662United Airlines
Find Deal
Tue, Nov 4 - Fri, Nov 14

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

Our best United Airlines deals on Prague to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Mar 6
PRG12:10 pmVáclav Havel Prague
14h 05m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
Mar 10
IAD5:25 pmWashington, D.C. Dulles Intl
15h 30m
1 stop
PRG1:55 pmVáclav Havel Prague
$661
Find similar
United Airlines
Nov 4
PRG11:50 amVáclav Havel Prague
14h 25m
1 stop
IAD8:15 pmWashington, D.C. Dulles Intl
Nov 14
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
PRG1:55 pmVáclav Havel Prague
$662
Find similar
United Airlines
Dec 12
PRG7:35 amVáclav Havel Prague
13h 00m
1 stop
IAD2:35 pmWashington, D.C. Dulles Intl
Dec 30
IAD8:30 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
PRG1:55 pmVáclav Havel Prague
$663
Find similar

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

Our best Aer Lingus deals on Prague to Washington, D.C. Dulles Intl Airport flight tickets
Aer Lingus
Oct 23
PRG11:50 amVáclav Havel Prague
13h 05m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
Nov 8
IAD5:05 pmWashington, D.C. Dulles Intl
11h 55m
1 stop
PRG11:00 amVáclav Havel Prague
$571
Find similar
Aer Lingus
Dec 27
PRG11:40 amVáclav Havel Prague
13h 50m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Jan 3
IAD5:05 pmWashington, D.C. Dulles Intl
11h 55m
1 stop
PRG11:00 amVáclav Havel Prague
$602
Find similar
Aer Lingus
Sep 13
PRG11:50 amVáclav Havel Prague
13h 05m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
Oct 5
IAD5:20 pmWashington, D.C. Dulles Intl
11h 50m
1 stop
PRG11:10 amVáclav Havel Prague
$861
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Prague to Washington, D.C. Dulles Intl Airport 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 September 11, 2025.
Use the filters below to find and compare flights from Prague to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 11/23

7:15 pm-3:15 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Wed 12/3

10:30 pm-6:25 pm

1 stop13h 55m

$458

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 11/23

7:15 pm-3:15 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Wed 12/3

10:30 pm-11:05 am

1 stop30h 35m

$462

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sun 11/2

7:15 pm-3:15 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Sat 11/15

5:30 pm-6:25 pm

1 stop18h 55m

$469

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Thu 10/23

11:50 am-6:55 pm

1 stop13h 05m

Washington, D.C. Dulles Intl

Sat 11/8

5:05 pm-11:00 am

1 stop11h 55m

$571

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Sat 12/27

11:40 am-7:30 pm

1 stop13h 50m

Washington, D.C. Dulles Intl

Sat 1/3

5:05 pm-11:00 am

1 stop11h 55m

$602

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 10/31

12:50 pm-7:30 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Thu 11/13

7:40 pm-11:55 am

1 stop10h 15m

$616

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 12/12

12:50 pm-6:30 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Thu 12/25

7:40 pm-11:55 am

1 stop10h 15m

$629

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Thu 10/9

6:00 am-1:30 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

Wed 10/22

10:20 pm-4:00 pm

1 stop11h 40m

$658

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Fri 3/6

12:10 pm-8:15 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Tue 3/10

5:25 pm-1:55 pm

1 stop15h 30m

$661

PragueWashington, D.C.

PRG - IAD

PRGIAD

Václav Havel Prague

Tue 11/4

11:50 am-8:15 pm

1 stop14h 25m

Washington, D.C. Dulles Intl

Fri 11/14

8:30 pm-1:55 pm

1 stop11h 25m

$662

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 Prague and Washington, D.C. Dulles Intl Airport?

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $652. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Prague to Washington, D.C. Dulles Intl Airport for around $925.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Prague at noon is the least expensive time of day to depart. momondo users have found prices as low as $779 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $780 on average. Flights to Washington, D.C. Dulles Intl Airport from Prague in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

As of September 2025, prices for Prague to Washington, D.C. Dulles Intl Airport flights are approximately 24% more expensive when compared to flights at the same time last year.

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

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

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

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

Direct flights

None
There are no direct flights from Prague to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Prague to Washington, D.C. Dulles Intl Airport.
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  • How far is Václav Havel Prague to Washington, D.C. Dulles Intl by plane?

    There are 4296.7 mi between Václav Havel Prague and Washington, D.C. Dulles Intl. 11h 40m is a normal flight duration for this route.

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

    Prices for flights from Václav Havel Prague Airport to Washington, D.C. Dulles Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Václav Havel Prague Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from Prague to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $595Free CancellationRating
7.0
546 reviews
Search Icelandair flights
British AirwaysPriceFrom $627Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
United AirlinesPriceFrom $665Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
LufthansaPriceFrom $667Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
KLMPriceFrom $850Free CancellationRating
7.8
1,385 reviews
Search KLM flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie

Why use momondo?

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

It is quick and easy to find Prague to Washington, D.C. 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 Washington, D.C. that suits you.

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

Yes. momondo allows you to filter the results for Prague to Washington, D.C. flights to just show those with flexible booking policies.

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

Once all potential Prague to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Prague to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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