PRG - IAD

$421 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 9/26. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Prague to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Prague to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$699
Typical prices: $807-$607
Multiple Airlines
Wed 10/14Thu 11/5
PRG - IAD • 2 stops
Cheapest one-way
$421
Typical prices: $555-$594
Multiple Airlines
Sat 9/26
PRG - IAD • 2 stops
Top airlines
Cheapest • from $731 (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 • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Oct 14 - Thu, Nov 5
Multiple Airlines Logo
8:30 pm - 7:09 pm
PRG
-
IAD
52h 39m
2 stops
Multiple Airlines Logo
7:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$699Multiple Airlines
Sun, Nov 8 - Thu, Dec 10
Multiple Airlines Logo
6:25 am - 7:05 pm
PRG
-
IAD
18h 40m
2 stops
Multiple Airlines Logo
7:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$710Multiple Airlines
Wed, Aug 12 - Wed, Aug 26
Multiple Airlines Logo
7:30 pm - 7:20 pm
PRG
-
IAD
29h 50m
3 stops
Multiple Airlines Logo
8:30 pm - 9:10 pm
IAD
-
PRG
18h 40m
2 stops
$722Multiple Airlines
Fri, Oct 16 - Thu, Nov 5
Icelandair Logo
2:00 pm - 7:20 pm
PRG
-
IAD
11h 20m
1 stop
Icelandair Logo
7:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$731Icelandair
Fri, Oct 9 - Sun, Oct 25
Icelandair Logo
2:00 pm - 7:20 pm
PRG
-
IAD
11h 20m
1 stop
Icelandair Logo
8:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$732Icelandair
Wed, Aug 12 - Wed, Aug 26
Multiple Airlines Logo
7:30 pm - 7:20 pm
PRG
-
IAD
29h 50m
3 stops
Multiple Airlines Logo
8:30 pm - 8:20 am
IAD
-
PRG
29h 50m
3 stops
$733Multiple Airlines
Tue, Oct 13 - Sun, Nov 1
Multiple Airlines Logo
12:00 pm - 7:00 pm
PRG
-
IAD
37h 00m
2 stops
Multiple Airlines Logo
7:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$738Multiple Airlines
Fri, Aug 28 - Tue, Sep 1
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
$745Icelandair
Thu, Oct 15 - Sun, Nov 1
Multiple Airlines Logo
5:05 pm - 7:00 pm
PRG
-
IAD
31h 55m
2 stops
Multiple Airlines Logo
7:40 pm - 11:55 am
IAD
-
PRG
10h 15m
1 stop
$746Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
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
$755Aer Lingus
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 October.

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 April and August, where the average cost of round-trip tickets is $996 and $920 respectively.

Good to know

Low seasonSeptember
Cheapest flight$421
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 2% increase in price.
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 $421 for a one-way ticket and $699 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Prague and Washington Dulles Airport, with SkyTeam 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 $747 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 5 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 1528 reviews
7.3Food
7.8Boarding
7.7Comfort
8.4Crew
7.2Entertainment
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

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

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

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.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

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.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

At least one soda free, felt like I was nickeled to death.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Welp - they boarded us appropriately...then had us sit on the plane for over two hours before cancelling the flight...which meant another night in Munich. I probably had it a little better than most as over 500 people had to be accommodated/re-booked etc. The next day I boarded the same flight (for which I had now been ticketed 3 straight days) and - with "only" an hour delay, managed to finally get home over 2 days later than scheduled. I haven't flown Lufthansa to Europe in years...and I won't be looking to do so again in the future. To be clear, though, the people I interacted with - flight crew, Service Center, check-in were all professional and courteous - management is clearly to blame for their lack of communication and unpreparedness for when things go wrong.

Seat very cramped, could not recline. No cheese with meal. Staff very helpful.

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

Information on your arrival and departure airports