$220 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 10/12. 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

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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$477
Prague
Prague1 stop$477

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

Tue, Dec 2 - Wed, Dec 10
TAP AIR PORTUGAL Logo
5:30 pm - 11:40 amIAD-PRG
12h 10m1 stop
TAP AIR PORTUGAL Logo
12:30 pm - 3:15 pmPRG-IAD
32h 45m1 stop
$477TAP AIR PORTUGAL
Find Deal
Wed, Jan 7 - Wed, Jan 21
Scandinavian Airlines Logo
7:59 pm - 9:45 amIAD-PRG
31h 46m2 stops
Scandinavian Airlines Logo
10:25 am - 5:15 pmPRG-IAD
12h 50m1 stop
$479Scandinavian Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
TAP AIR PORTUGAL Logo
10:30 pm - 6:25 pmIAD-PRG
13h 55m1 stop
TAP AIR PORTUGAL Logo
12:30 pm - 2:35 pmPRG-IAD
32h 05m1 stop
$480TAP AIR PORTUGAL
Find Deal
Wed, Oct 29 - Wed, Nov 12
Lufthansa Logo
7:00 pm - 11:05 amIAD-PRG
11h 05m1 stop
Lufthansa Logo
7:30 am - 3:50 pmPRG-IAD
14h 20m1 stop
$496Lufthansa
Find Deal
Tue, Dec 9 - Mon, Dec 22
British Airways Logo
9:45 pm - 2:35 pmIAD-PRG
10h 50m1 stop
British Airways Logo
7:00 pm - 3:35 pmPRG-IAD
26h 35m1 stop
$520British Airways
Find Deal
Tue, Dec 2 - Mon, Feb 23
British Airways Logo
9:45 pm - 5:30 pmIAD-PRG
13h 45m1 stop
British Airways Logo
9:35 pm - 7:55 pmPRG-IAD
28h 20m1 stop
$521British Airways
Find Deal
Tue, Dec 9 - Wed, Dec 24
United Airlines Logo
5:10 pm - 1:55 pmIAD-PRG
14h 45m2 stops
United Airlines Logo
12:10 pm - 8:15 pmPRG-IAD
14h 05m1 stop
$525United Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
SWISS Logo
8:30 pm - 1:55 pmIAD-PRG
11h 25m1 stop
SWISS Logo
8:15 pm - 4:40 pmPRG-IAD
26h 25m1 stop
$526SWISS
Find Deal
Tue, Dec 9 - Thu, Dec 25
United Airlines Logo
8:30 pm - 1:55 pmIAD-PRG
11h 25m1 stop
United Airlines Logo
1:45 pm - 8:05 pmPRG-IAD
12h 20m1 stop
$532United Airlines
Find Deal
Fri, Jan 9 - Fri, Jan 23
Lufthansa Logo
6:00 pm - 9:50 amIAD-PRG
9h 50m1 stop
Lufthansa Logo
10:20 am - 3:50 pmPRG-IAD
11h 30m1 stop
$542Lufthansa
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 January, when tickets cost $594 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,042 and $801 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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$220
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 6% 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 1731 reviews
8.2Crew
7.7Boarding
6.8Entertainment
7.1Food
7.4Comfort
Airline reviews

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

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

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.

The flight was generally good but was delayed departure meant a very late arrival for a connecting flight.

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

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!

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I paid for the seat with more leg room but on the day of my departure my seat was changed. I brought it to the airline costumer service and he was able to change it back. The person sitting next to me had the same exact issue.

Great experience. Typically do klm to Amsterdam but may start taking this flight in future - greatxexperience.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

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.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

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