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Dulles Intl

$282+ Cheap flights from Otopeni Intl (OTP) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — IAD
nov 15 — nov 221
sáb 11/15
sáb 11/22
1 adult, Economy
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Cheap flight deals from Otopeni Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated outubro 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(United Airlines)

One-way from

$282
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$602
Provider with most accurate pricing for Bucharest Otopeni Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Washington, D.C. Dulles Intl flights.
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From Bucharest Otopeni Intl to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Bucharest Otopeni Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 4% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
Search Deals

Find flight deals from Otopeni Intl to Dulles Intl

Cheapest flights from Otopeni Intl to Dulles Intl
Explore the most affordable flight options available from Otopeni Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on outubro 16, 2025.

This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/135:50 amOTP - IAD
2 stops17h 31mAir Canada
qua 11/265:50 pmIAD - OTP
2 stops39h 00mAir Canada
Deal found 10/14$438
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/35:55 amOTP - IAD
1 stop16h 55mUnited Airlines
seg 11/1710:55 pmIAD - OTP
1 stop12h 40mUnited Airlines
Deal found 10/15$440
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 11/15:55 amOTP - IAD
1 stop21h 20mUnited Airlines
seg 11/175:40 pmIAD - OTP
1 stop17h 55mUnited Airlines
Deal found 10/16$442
This Booking.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/65:50 amOTP - IAD
1 stop17h 00mLufthansa
sáb 11/810:55 pmIAD - OTP
1 stop19h 10mLufthansa
Deal found 10/15$459
This Mytrip deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/305:50 amOTP - IAD
1 stop17h 00mLufthansa
seg 11/310:55 pmIAD - OTP
1 stop19h 10mLufthansa
Deal found 10/13$461
This Lufthansa deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/315:55 amOTP - IAD
1 stop15h 40mLufthansa
ter 11/45:40 pmIAD - OTP
1 stop17h 55mLufthansa
Deal found 10/15$463
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/65:50 amOTP - IAD
1 stop17h 00mUnited Airlines
sáb 11/812:40 pmIAD - OTP
2 stops18h 25mUnited Airlines
Deal found 10/15$465
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/305:50 amOTP - IAD
1 stop17h 00mUnited Airlines
seg 11/36:00 pmIAD - OTP
1 stop17h 40mUnited Airlines
Deal found 10/14$466
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 10/282:50 pmOTP - IAD
2 stops39h 09mUnited Airlines
sáb 11/810:18 pmIAD - OTP
2 stops37h 07mUnited Airlines
Deal found 10/15$467
This Booking.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/75:55 amOTP - IAD
1 stop16h 55mLufthansa
qui 4/910:20 pmIAD - OTP
1 stop13h 15mLufthansa
Deal found 10/14$470

Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated outubro 16, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Otopeni Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

qui 11/13

5:50 am-4:21 pm

2 stops17h 31m

Washington, D.C. Dulles Intl

qua 11/26

5:50 pm-3:50 pm

2 stops39h 00m

$438

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

sáb 11/1

5:55 am-3:35 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

seg 11/17

10:55 pm-6:35 pm

1 stop12h 40m

$440

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

qui 11/13

5:50 am-3:50 pm

1 stop17h 00m

Washington, D.C. Dulles Intl

qua 11/26

10:55 pm-1:05 am

1 stop19h 10m

$459

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

qui 10/30

5:50 am-4:50 pm

1 stop17h 00m

Washington, D.C. Dulles Intl

seg 11/3

10:55 pm-1:05 am

1 stop19h 10m

$461

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

sex 10/31

5:55 am-3:35 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

ter 11/4

5:40 pm-6:35 pm

1 stop17h 55m

$463

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

sex 3/27

5:55 am-9:15 pm

1 stop21h 20m

Washington, D.C. Dulles Intl

dom 3/29

10:20 pm-1:00 am

1 stop19h 40m

$465

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

qui 10/30

5:50 am-4:50 pm

1 stop17h 00m

Washington, D.C. Dulles Intl

seg 11/3

6:00 pm-6:40 pm

1 stop17h 40m

$466

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

sex 3/27

5:55 am-9:15 pm

1 stop21h 20m

Washington, D.C. Dulles Intl

dom 3/29

10:20 pm-1:00 am

1 stop19h 40m

$466

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

ter 11/18

5:55 am-2:35 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

qui 11/20

8:30 am-2:05 pm

2 stops22h 35m

$467

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

seg 2/9

8:05 am-3:35 pm

1 stop14h 30m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 17 results
1
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Compare providers for flights from Otopeni Intl to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Otopeni Intl to Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bucharest Otopeni Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bucharest Otopeni Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bucharest Otopeni Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest Otopeni Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bucharest Otopeni Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Otopeni Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Otopeni Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport (average of $418). Flying from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $630). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OTP to IAD?

Find hourly flight availability from Otopeni Intl to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated outubro 16, 2025.

One of the essential ways to save on airfare from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 50% on airfare.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated outubro 16, 2025.
See what other customers who have flown with Austrian Airlines, Air France, and Turkish Airlines from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Austrian Airlines
7.6
Good
855 reviews
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Air France
7.4
Good
1,476 reviews
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Turkish Airlines
7.3
Good
4,010 reviews
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
Lufthansa
6.8
Okay
7,497 reviews
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!
British Airways
6.7
Okay
7,457 reviews
Austrian Airlines
7.6
Good
855 reviews

Overall

7.6

Comfort

7.3

Food

6.8

Boarding

7.6

Crew

8.1

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport in 15h 40m. Fly via Air Canada, United Airlines, or Lufthansa to get the fastest option. Airlines will cover a distance of 4962 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport round-trip from $418. Other airlines that can offer you cheap pricing are Air France, from $448, and British Airways, from $461. United Airlines is currently priced 34% below the average price you’ll pay for this route.

  • Can I find deals for flights from Otopeni Intl to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Otopeni Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Otopeni Intl to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Otopeni Intl to Dulles Intl.

  • Can I find deals for business class flights from Otopeni Intl to Dulles Intl?

    Yes. Cheapflights offers flight deals from Otopeni Intl to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport (average of $418). Flying from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $630). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Tysons
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

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Alternative routes for Otopeni Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Otopeni Intl to Baltimore flights
Otopeni Intl to Reagan-National flights

Top 7 airlines flying from Otopeni Intl to Dulles Intl

Discover the top 7 airlines that operate flights from Otopeni Intl to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated outubro 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$418Average$638FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$448Average$769FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$461Average$622FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$462Average$606FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$489Average$774FlexibilityNo cancel feeOn-time76%
KLMCheapest$514Average$737FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$559Average$619FlexibilityNo cancel feeOn-time77%

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