PRG - IAD

$372 Find Cheap Flights from Prague to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Prague to Dulles Intl departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$600
Typical prices: $789-$1,595
Icelandair
Fri 8/28Thu 9/10
PRG - IAD • 1 stop
Cheapest one-way
$372
Typical prices: $555-$621
Multiple Airlines
Tue 9/15
PRG - IAD • 2 stops
Top airlines
Cheapest • from $600 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Prague and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $483 (round-trip)
Shortest trip • 12h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Prague to Dulles Intl (PRG-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Prague to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Prague to Dulles Intl

Fri, Aug 28 - Thu, Sep 10
Icelandair Logo
2:00 pm - 10:15 pm
PRG
-
IAD
14h 15m
1 stop
Icelandair Logo
8:30 pm - 1:05 pm
IAD
-
PRG
10h 35m
1 stop
$600Icelandair
Fri, Aug 28 - Thu, Sep 10
Icelandair Logo
2:00 pm - 10:15 pm
PRG
-
IAD
14h 15m
1 stop
Icelandair Logo
8:30 pm - 1:05 pm
IAD
-
PRG
10h 35m
1 stop
$602Icelandair
Mon, Aug 31 - Mon, Sep 7
Multiple Airlines Logo
7:30 pm - 10:15 pm
PRG
-
IAD
32h 45m
2 stops
Multiple Airlines Logo
8:30 pm - 8:15 pm
IAD
-
PRG
17h 45m
2 stops
$653Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
5:20 pm - 7:20 pm
PRG
-
IAD
32h 00m
2 stops
Multiple Airlines Logo
8:30 pm - 3:45 pm
IAD
-
PRG
13h 15m
2 stops
$669Multiple Airlines
Tue, Oct 13 - Thu, Nov 5
Aer Lingus Logo
11:50 am - 7:35 pm
PRG
-
IAD
13h 45m
1 stop
Aer Lingus Logo
5:05 pm - 11:00 am
IAD
-
PRG
11h 55m
1 stop
$733Aer Lingus
Thu, Oct 15 - Thu, Nov 5
Aer Lingus Logo
11:50 am - 7:10 pm
PRG
-
IAD
13h 20m
1 stop
Aer Lingus Logo
5:05 pm - 11:00 am
IAD
-
PRG
11h 55m
1 stop
$733Aer Lingus
Sun, Oct 11 - Mon, Nov 2
United Airlines Logo
6:10 am - 7:00 pm
PRG
-
IAD
18h 50m
2 stops
United Airlines Logo
8:10 pm - 1:55 pm
IAD
-
PRG
11h 45m
1 stop
$903United Airlines
Sun, Oct 11 - Tue, Nov 3
United Airlines Logo
6:10 am - 3:10 pm
PRG
-
IAD
15h 00m
1 stop
United Airlines Logo
5:15 pm - 4:05 pm
IAD
-
PRG
16h 50m
2 stops
$903United Airlines
Sun, Oct 11 - Mon, Nov 2
KLM Logo
6:00 am - 3:35 pm
PRG
-
IAD
15h 35m
1 stop
KLM Logo
6:32 pm - 1:45 pm
IAD
-
PRG
13h 13m
2 stops
$912KLM
Thu, Sep 3 - Thu, Sep 10
KLM Logo
11:15 am - 7:35 pm
PRG
-
IAD
14h 20m
2 stops
KLM Logo
6:26 pm - 1:45 pm
IAD
-
PRG
13h 19m
2 stops
$1,122KLM
Booking Insights

KAYAK's insights & trends for Prague to Dulles Intl flights

Get data-powered insights and trends into flights from Prague to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Prague to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Prague to Washington, D.C. Dulles Intl Airport departing in August.

Flight prices are below average for this route right now.

Flights to Washington, D.C. Dulles Intl Airport from Prague usually cost between $745 and $2,356 in August.
The lowest price found in the past 5 days was $600 on Icelandair (Aug 28-Sep 10).

What is the cheapest month to fly from Prague to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Prague to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Prague to Washington, D.C. Dulles Intl Airport is January, where tickets cost $638 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is $1,081 and $1,023 respectively.

Good to know

Low season

May

Cheapest flight

$372
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Prague to Washington Dulles Airport

When to book flights from Prague to Dulles Intl

Are your dates flexible? Find out the best times to travel from Prague to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Prague to Washington Dulles Airport flights

  • What is the cheapest flight from Prague to Washington, D.C. Dulles Intl Airport?

    In the last 5 days, the lowest price for a flight from Prague to Washington, D.C. Dulles Intl Airport was $372 for a one-way ticket and $600 for a round-trip.

  • Do I need a passport to fly between Prague and Washington Dulles Airport?

    A passport is required to fly from Prague to Washington Dulles Airport.

  • Which airports will I be using when flying from Prague to Washington Dulles Airport?

    Prague and Washington Dulles Airport are both served by 1 main airport. You will leave Prague from Václav Havel Prague and will be arriving at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Prague to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Prague to Washington Dulles Airport?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Prague and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Prague to Washington, D.C., KLM or United Airlines?

    The two airlines most popular with KAYAK users for flights from Prague to Washington, D.C. are KLM and United Airlines. With an average price for the route of $1,081 and an overall rating of 7.8, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of $743 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Prague to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Prague to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Prague to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Prague is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Prague to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Prague with another airline. Booking your flights between Prague and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Prague to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Prague up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Prague to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Prague to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Prague to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1552 reviews
8.4Crew
7.3Food
7.2Entertainment
7.8Boarding
7.7Comfort
Airline reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

10.0 ExcellentEmily, Jul 2026
ORD - MSP
Read more KLM reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Flight lead was a gentleman with silver hair and he went out of his way to shake hands and interact with each passenger seated in business class. A medical emergency took place during our flight and he handled it with perfect poise and professionalism. He was gracious and confidently competent. Just what you want from a leader,

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Well, in my case; the flight was delayed 1 hour, we have to wait in the plane to get green light. And the plane (probably because was a short trip) did not have entertainment or WiFi. No a good experience.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

On time departure and arrival at LAX - good inflight entertainment - all basic seats on every airline right now begin to feel small after 10 hours!!

I was pleasantly surprised. I've never flown this airline and the seats were comfy, I couldn't select my seat but luckily got aisle and was able to comfortably sleep the whole trip except when they came around with an in flight free meal, drinks then snack at the end. I'd fly with Aer Lingus again. The only annoying thing is you had to pay for WiFi for different hours of usage but luckily I didn't need it

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

A seat was broken There was a delay of 45min A checked bag was missing in Boston

I had a great experience. I would definitely use them again

I was not admitted to the flight!!! i need a refund for this.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

We were very satisfied and would fly with Aer Lingus again in the future.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Terrible way of boarding in Reykjavik. Seats comfortable. Meal was good.

Unlike my prior three connections on this latest journey, this flight was fairly good. Only issue was boarding as it was once again one of those Icelandic issues of bunch up, walk in the rain to a bus that then has you run up three flights of stairs to board the plain. I was in Saga class but the bus scramble eliminates any chance you get on first and have to then find a place to squeeze your carry on into an overhead that the people in economy populate so they can grab it on their way out up front. But unlike other Icelandic flights this journey I did find more the of the business class like accommodations then the other air segments. This one found a pillow and blanket waiting for me and I actually received a small cup of sparkling wine and had a bottle of water in place. Service was attentive and the flight departed and arrived on time. Received a menu and had choices of a hot or cold meal. I choose the hot which was cod and it was good. Decent size portion, salad and a choice of dinner rolls. Beverage menu was a selection of wines, beer and soft drinks. Desert was a small Tiramisu. Overall the six hour flight was a good experience for the price point.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

The cabin was first too hot and then too cold. The AC was central, so there was no way to adjust it. The entertainment was really mediocre. But the crew and flight attendants were great.

Horrible. I was placed on standby for no reason and they would no allow me to fix the seating into the gate. Plane was hot. Entertainment was abysmal. Seats only take old USB or even older jack plugs — not lightening plugs like all modern phones. Food is pay as you go and awful. Seats were small and uncomfortable. I do not recommend Iceland air.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Everything you need to know for your flight from Prague to Dulles Intl

Information on your arrival and departure airports