$267 Find Cheap Flights from Washington Dulles Airport to Czech Republic

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to the Czech Republic departing on 1/31. 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.
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1 adult, Economy, 0 bags

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Cheap Flights from Dulles Intl to the Czech Republic

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Prague
Prague1 stop$493
Brno
Brno2 stops$1,083
Prague
Prague1 stop$493
Brno
Brno2 stops$1,083

Book Cheap Dulles Intl to the Czech Republic Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to the Czech Republic 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 Dulles Intl to the Czech Republic

Thu, Mar 5 - Fri, Mar 13
Scandinavian Airlines Logo
8:30 pm - 9:45 amIAD-PRG
31h 15m1 stop
Scandinavian Airlines Logo
9:05 pm - 7:50 pmPRG-IAD
27h 45m1 stop
$493Scandinavian Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29
Scandinavian Airlines Logo
12:23 pm - 9:45 amIAD-PRG
15h 22m2 stops
Scandinavian Airlines Logo
10:25 am - 7:09 pmPRG-IAD
14h 44m2 stops
$495Scandinavian Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9
Scandinavian Airlines Logo
7:59 pm - 8:10 pmIAD-PRG
42h 11m2 stops
Scandinavian Airlines Logo
7:20 pm - 5:15 pmPRG-IAD
27h 55m1 stop
$496Scandinavian Airlines
Find Deal
Thu, Mar 26 - Mon, Apr 6
Icelandair Logo
8:40 pm - 11:55 amIAD-PRG
10h 15m1 stop
Icelandair Logo
2:00 pm - 7:20 pmPRG-IAD
11h 20m1 stop
$497Icelandair
Find Deal
Wed, Jan 14 - Sun, Jan 18
Scandinavian Airlines Logo
12:23 pm - 9:45 amIAD-PRG
15h 22m2 stops
Scandinavian Airlines Logo
10:25 am - 7:09 pmPRG-IAD
14h 44m2 stops
$500Scandinavian Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 6
Scandinavian Airlines Logo
7:59 pm - 9:45 amIAD-PRG
31h 46m2 stops
Scandinavian Airlines Logo
9:05 pm - 7:12 pmPRG-IAD
28h 07m2 stops
$501Scandinavian Airlines
Find Deal
Wed, Dec 3 - Thu, Dec 18
Lufthansa Logo
10:55 pm - 4:05 pmIAD-PRG
11h 10m1 stop
Lufthansa Logo
1:45 pm - 8:05 pmPRG-IAD
12h 20m1 stop
$513Lufthansa
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Sat, Nov 29 - Mon, Dec 8
SWISS Logo
8:30 pm - 1:55 pmIAD-PRG
11h 25m1 stop
SWISS Logo
6:25 am - 5:05 pmPRG-IAD
16h 40m1 stop
$526SWISS
Find Deal
Mon, Dec 1 - Mon, Dec 8
United Airlines Logo
10:55 pm - 4:05 pmIAD-PRG
11h 10m1 stop
United Airlines Logo
7:35 am - 3:50 pmPRG-IAD
14h 15m1 stop
$540United Airlines
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Tue, Dec 2 - Mon, Dec 8
United Airlines Logo
5:45 pm - 10:50 amIAD-PRG
11h 05m1 stop
United Airlines Logo
7:35 am - 3:50 pmPRG-IAD
14h 15m1 stop
$542United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to the Czech Republic flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to the Czech Republic, 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 Washington, D.C. Dulles Intl Airport to the Czech Republic is February, when tickets cost $580 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,007 and $795 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Czech Republic?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to the Czech Republic clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Czech Republic, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Czech Republic, Tuesday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to the Czech Republic?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to the Czech Republic, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to the Czech Republic, you should book around 5 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$267
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Washington Dulles Airport to Prague

FAQs - booking Czech Republic flights

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

    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 Washington Dulles Airport to Czech Republic.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Czech Republic 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 Washington Dulles Airport to Czech Republic?

    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 from Washington Dulles Airport to Czech Republic with an airline and back with another airline.

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

    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 from Washington Dulles Airport to Czech Republic up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the Czech Republic?

    The cheapest time of day to fly to the Czech Republic is generally at night, when round-trip flights cost $798 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the Czech Republic is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $881.

Reviews of the top 5 airlines serving from Dulles Intl to the Czech Republic

 
Need help choosing which airline to fly with from Dulles Intl to the Czech Republic? 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.
7.5
SWISSOverall score based on 1774 reviews
7.7Boarding
7.4Comfort
8.2Crew
7.1Food
6.8Entertainment
Airline reviews

My experience was wonderful. The professionalism of the crew was exemplary 🙂. The meals were wholesome and tasty. I have no complaints

10.0 ExcellentAnonymous, Sep 2025ZRH - EWR
Read more SWISS reviews

My experience was wonderful. The professionalism of the crew was exemplary 🙂. The meals were wholesome and tasty. I have no complaints

Everything was smooth and great. I didnt like that they talk so much on the interphone during the flight.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

The plan was delayed for takeoff by an hour, but we ended up making the landing on time which was a nice surprise.

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

No choice of food. Needed to pay more even for a can of coke!!!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

When my flight was changed from delays they were quick to rebook me.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I liked everything BUT the temperature. It was freezing and now I am sick.

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

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