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Dulles Intl

$354+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — IAD
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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Cheap 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 February 9, 2026.

This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:00 am
OTP
-
IAD
1 stop17h 05m
Multiple Airlines
Mon 3/26:50 pm
IAD
-
OTP
1 stop18h 20m
Multiple Airlines
Deal found 2/9$518
This KLM deal was found by Cheapflights users on 2/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/98:35 am
OTP
-
IAD
1 stop14h 30m
Multiple Airlines
Mon 3/237:50 pm
IAD
-
OTP
1 stop18h 20m
Multiple Airlines
Deal found 2/7$519
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:00 pm
OTP
-
IAD
1 stop29h 05m
Multiple Airlines
Wed 3/1110:40 pm
IAD
-
OTP
1 stop17h 50m
Multiple Airlines
Deal found 2/9$520
This KLM deal was found by Cheapflights users on 2/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:35 am
OTP
-
IAD
1 stop14h 30m
KLM
Wed 4/16:10 pm
IAD
-
OTP
1 stop22h 20m
KLM
Deal found 2/7$523
This Delta deal was found by Cheapflights users on 2/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:00 am
OTP
-
IAD
2 stops20h 09m
Delta
Tue 3/171:19 pm
IAD
-
OTP
2 stops16h 46m
Delta
Deal found 2/6$524
This Delta deal was found by Cheapflights users on 2/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/216:00 am
OTP
-
IAD
1 stop17h 05m
Delta
Mon 3/91:19 pm
IAD
-
OTP
2 stops17h 41m
Delta
Deal found 2/7$525
This Delta deal was found by Cheapflights users on 2/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:00 am
OTP
-
IAD
1 stop17h 05m
Delta
Mon 3/91:19 pm
IAD
-
OTP
2 stops17h 41m
Delta
Deal found 2/8$526
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:35 am
OTP
-
IAD
1 stop14h 00m
Multiple Airlines
Fri 6/59:45 pm
IAD
-
OTP
1 stop18h 40m
Multiple Airlines
Deal found 2/9$530
This FlightHub deal was found by Cheapflights users on 2/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/169:55 pm
OTP
-
IAD
1 stop20h 50m
Turkish Airlines
Tue 2/249:15 pm
IAD
-
OTP
1 stop16h 15m
Turkish Airlines
Deal found 2/7$531
This KLM deal was found by Cheapflights users on 2/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:50 pm
OTP
-
IAD
1 stop29h 45m
KLM
Tue 6/25:40 pm
IAD
-
OTP
1 stop22h 50m
KLM
Deal found 2/6$535
This Delta deal was found by Cheapflights users on 2/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 am
OTP
-
IAD
2 stops18h 03m
Delta
Tue 6/25:40 pm
IAD
-
OTP
1 stop12h 20m
Delta
Deal found 2/6$540

Find 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 February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$518
(KLM)

One-way from

$354
(Kiwi.com)

Popular in

February

Cheapest in

May

Average price

$1,092
Provider with most accurate pricing for Bucharest Otopeni Intl-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Washington, D.C. Dulles Intl flights.
Search Deals
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
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($154 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 9, 2026.
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 3/12

4:50 pm-5:05 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Mon 3/16

7:50 pm-8:10 pm

1 stop18h 20m

$518

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Mon 3/2

8:35 am-4:05 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Tue 3/17

7:50 pm-3:50 pm

1 stop14h 00m

$518

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Wed 2/25

6:00 am-4:05 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/2

6:50 pm-8:10 pm

1 stop18h 20m

$518

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Wed 2/25

6:00 am-4:05 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/2

12:24 pm-12:05 pm

2 stops16h 41m

$519

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Sat 2/21

6:00 am-4:05 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/9

10:45 pm-8:10 pm

1 stop15h 25m

$519

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Mon 3/9

8:35 am-5:05 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Mon 3/23

7:50 pm-8:10 pm

1 stop18h 20m

$519

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Sun 2/22

6:00 am-4:05 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/9

10:45 pm-10:50 pm

1 stop18h 05m

$520

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 2/26

6:00 am-4:05 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Wed 3/11

10:40 pm-10:50 pm

1 stop18h 10m

$520

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Thu 2/26

6:00 pm-4:05 pm

1 stop29h 05m

Washington, D.C. Dulles Intl

Wed 3/11

10:40 pm-10:30 pm

1 stop17h 50m

$520

BucharestWashington, D.C.

OTP - IAD

OTPIAD

Bucharest Otopeni Intl

Mon 3/16

1:55 pm-5:05 pm

1 stop33h 10m

Washington, D.C. Dulles Intl

Tue 3/31

9:45 pm-10:50 pm

1 stop18h 05m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 19 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice 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 February is currently the most expensive (average of $1,092). 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.

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 February 9, 2026.
See what other customers who have flown with KLM, Austrian Airlines, and Air France 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.
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,450 reviews
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Austrian Airlines
7.5
Good
896 reviews
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.4
Good
1,531 reviews
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,259 reviews
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,775 reviews
KLM
7.7
Good
1,450 reviews

Food

7.3

Boarding

7.8

Entertainment

7.1

Overall

7.7

Crew

8.4

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 $418. Other airlines that can offer you cheap pricing are Austrian Airlines, from $420, and Air France, from $448. United Airlines is currently priced 35% 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 February is currently the most expensive (average of $1,092). 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
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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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 5 airlines flying from Otopeni Intl to Dulles Intl

Discover the top 5 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 February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$418Average$459FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$420Average$550FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$448Average$589FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$478Average$665FlexibilityNo cancel feeOn-time76%
KLMCheapest$528Average$672FlexibilityNo cancel feeOn-time75%

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