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Dulles Intl

$465+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — IAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$476
(Booking.com)

One-way from

$465
(Thrive Travel)

Popular in

June

Cheapest in

February

Average price

$779
From Bucharest Otopeni Intl to Washington, D.C. Dulles Intl
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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 ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/12. 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.
Thu 7/36:30 amOTP - IAD
1 stop15h 55mMultiple Airlines
Wed 7/1610:10 pmIAD - OTP
1 stop18h 20mMultiple Airlines
Deal found 6/12$476
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/246:05 amOTP - IAD
2 stops17h 20mUnited Airlines
Thu 10/305:33 pmIAD - OTP
2 stops14h 32mUnited Airlines
Deal found 6/10$484
This SWISS deal was found by Cheapflights users on 6/12. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/244:10 pmOTP - IAD
1 stop30h 15mSWISS
Wed 8/65:45 pmIAD - OTP
1 stop24h 35mSWISS
Deal found 6/12$511
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Thu 7/246:00 amOTP - IAD
2 stops21h 00mLufthansa
Wed 8/65:25 pmIAD - OTP
1 stop23h 05mLufthansa
Deal found 6/11$520
This Austrian Airlines deal was found by Cheapflights users on 6/11. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:35 amOTP - IAD
1 stop15h 00mAustrian Airlines
Fri 9/1210:25 pmIAD - OTP
2 stops33h 55mAustrian Airlines
Deal found 6/11$532
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Thu 7/31:55 pmOTP - IAD
2 stops30h 47mAir Canada
Thu 7/1710:20 amIAD - OTP
2 stops19h 40mAir Canada
Deal found 6/10$551
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/273:30 pmOTP - IAD
1 stop31h 15mBritish Airways
Tue 7/110:40 pmIAD - OTP
1 stop19h 45mBritish Airways
Deal found 6/11$1,043
This Turkish Airlines deal was found by Cheapflights users on 6/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/243:55 pmOTP - IAD
1 stop26h 50mTurkish Airlines
Wed 8/61:30 pmIAD - OTP
1 stop18h 05mTurkish Airlines
Deal found 6/12$1,109
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/12. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/246:30 amOTP - IAD
2 stops21h 20mTAP AIR PORTUGAL
Wed 8/65:50 pmIAD - OTP
2 stops22h 40mTAP AIR PORTUGAL
Deal found 6/12$1,589
This oojo deal was found by Cheapflights users on 6/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:20 amOTP - IAD
1 stop37h 20mEmirates
Sat 10/1810:55 amIAD - OTP
1 stop20h 50mEmirates
Deal found 6/10$1,803
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:50 pmOTP - IAD
1 stop29h 09mScandinavian Airlines
Sat 11/88:30 pmIAD - OTP
2 stops21h 00mScandinavian Airlines
Deal found 6/10$2,771
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:40 amOTP - IAD
2 stops42h 50mAmerican Airlines
Sun 11/99:55 pmIAD - OTP
1 stop18h 50mAmerican Airlines
Deal found 6/10$3,066

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 June 12, 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

Thu 7/3

6:30 am-3:25 pm

1 stop15h 55m

Washington, D.C. Dulles Intl

Wed 7/16

10:10 pm-11:30 pm

1 stop18h 20m

$476

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Tue 6/24

6:05 am-4:25 pm

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 10/30

5:33 pm-2:05 pm

2 stops14h 32m

$484

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 7/24

4:10 pm-3:25 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Wed 8/6

5:45 pm-1:20 am

1 stop24h 35m

$511

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 7/24

6:00 am-8:00 pm

2 stops21h 00m

Washington, D.C. Dulles Intl

Wed 8/6

5:25 pm-11:30 pm

1 stop23h 05m

$520

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Fri 8/29

6:35 am-2:35 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Fri 9/12

10:25 pm-3:20 pm

2 stops33h 55m

$532

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 7/3

1:55 pm-1:42 pm

2 stops30h 47m

Washington, D.C. Dulles Intl

Thu 7/17

10:20 am-1:00 pm

2 stops19h 40m

$551

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Fri 6/27

3:30 pm-3:45 pm

1 stop31h 15m

Washington, D.C. Dulles Intl

Tue 7/1

10:40 pm-1:25 am

1 stop19h 45m

$1,043

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 7/24

3:55 pm-11:45 am

1 stop26h 50m

Washington, D.C. Dulles Intl

Wed 8/6

1:30 pm-2:35 pm

1 stop18h 05m

$1,109

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 7/24

6:30 am-8:50 pm

2 stops21h 20m

Washington, D.C. Dulles Intl

Wed 8/6

5:50 pm-11:30 pm

2 stops22h 40m

$1,589

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Fri 10/3

2:20 am-8:40 am

1 stop37h 20m

Washington, D.C. Dulles Intl

Sat 10/18

10:55 am-2:45 pm

1 stop20h 50m

$1,803

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 21 results
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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, August 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 $309). Flying from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 June 12, 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Delta
8.0
Very good
7,950 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Austrian Airlines
7.6
Good
802 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
SWISS
7.5
Good
1,623 reviews
Emirates
8.1
Very good
3,264 reviews

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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.

  • 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 $484. Other airlines that can offer you cheap pricing are SWISS, from $511, and Lufthansa, from $520. United Airlines is currently priced 24% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $465. However, be on the lookout for offers from Scandinavian Airlines and British Airways, as they are both options that can get you from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport for a low price.

  • 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, August 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 $309). Flying from Bucharest Otopeni Intl Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Bucharest Otopeni Intl Airport?

Book flights to Bucharest Otopeni Intl Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

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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 Reagan-National flights
Otopeni Intl to Baltimore 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$418Average$662FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$461Average$597FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$489Average$776FlexibilityNo cancel feeOn-time76%
KLMCheapest$514Average$737FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$559Average$619FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$580Average$641FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$597Average$779FlexibilityNo cancel feeOn-time77%

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