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Otopeni Intl

$320+ Cheap flights from Washington to Otopeni Intl (OTP)

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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OTP
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Washington to Otopeni Intl

Keep the following information in mind while searching for Washington to Otopeni Intl flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$527
(Booking.com)

One-way from

$320
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$788
Provider with most accurate pricing for Seattle/Tacoma Intl-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bucharest (BUH) flights.
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From Washington to Bucharest Otopeni Intl
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One-way flight from Washington to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 19% potential increase in price ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($101 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Washington to Otopeni Intl

Cheapest flights from Washington to Otopeni Intl
Explore the most affordable flight options available from Washington to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Booking.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/283:10 pmSEA - OTP
1 stop17h 25mLufthansa
Fri 12/55:55 amOTP - SEA
1 stop16h 15mLufthansa
Deal found 10/29$527
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:52 amPDX - OTP
2 stops28h 13mLufthansa
Thu 12/45:50 amOTP - PDX
2 stops22h 40mLufthansa
Deal found 10/30$529
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:00 pmPDX - OTP
2 stops37h 35mMultiple Airlines
Thu 12/45:50 amOTP - PDX
2 stops22h 40mMultiple Airlines
Deal found 10/28$532
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:40 pmSEA - OTP
2 stops25h 25mLufthansa
Tue 12/165:55 amOTP - SEA
1 stop16h 15mLufthansa
Deal found 10/28$533
This Air France deal was found by Cheapflights users on 10/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:05 pmSEA - OTP
1 stop15h 45mMultiple Airlines
Mon 2/164:50 pmOTP - SEA
1 stop28h 50mMultiple Airlines
Deal found 10/29$534
This Air France deal was found by Cheapflights users on 10/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:59 amPDX - OTP
2 stops19h 26mKLM
Thu 12/48:35 amOTP - PDX
1 stop36h 50mKLM
Deal found 10/30$544
This Delta deal was found by Cheapflights users on 10/28. 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.
Tue 12/92:05 pmSEA - OTP
2 stops22h 45mDelta
Tue 12/166:05 amOTP - SEA
2 stops20h 49mDelta
Deal found 10/28$554
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 11/2612:35 amPDX - OTP
2 stops26h 25mDelta
Thu 12/46:00 amOTP - PDX
2 stops26h 10mDelta
Deal found 10/30$555
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 11/286:13 amSEA - OTP
2 stops21h 57mUnited Airlines
Fri 12/55:55 amOTP - SEA
3 stops25h 05mUnited Airlines
Deal found 10/29$560
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:05 amSEA - OTP
2 stops22h 30mLufthansa
Tue 12/165:55 amOTP - SEA
1 stop16h 15mLufthansa
Deal found 10/29$571
This oojo deal was found by Cheapflights users on 10/30. 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.
Wed 11/52:40 pmSEA - OTP
2 stops43h 40mTurkish Airlines
Wed 11/193:30 pmOTP - SEA
2 stops61h 22mTurkish Airlines
Deal found 10/30$613
This oojo deal was found by Cheapflights users on 10/28. 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.
Tue 12/97:00 pmSEA - OTP
1 stop15h 20mTurkish Airlines
Tue 12/163:30 pmOTP - SEA
1 stop35h 35mTurkish Airlines
Deal found 10/28$615

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Otopeni 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 October 30, 2025.
Use the filters below to find and compare flights from Washington to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Washington

Fly to

Otopeni Intl

Route

Depart

Return

Price

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 11/28

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Fri 12/5

5:55 am-12:10 pm

1 stop16h 15m

$527

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 11/27

7:00 pm-6:35 pm

2 stops37h 35m

Bucharest Otopeni Intl

Thu 12/4

5:50 am-6:30 pm

2 stops22h 40m

$532

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

1:40 pm-1:05 am

2 stops25h 25m

Bucharest Otopeni Intl

Tue 12/16

5:55 am-12:10 pm

1 stop16h 15m

$533

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Mon 1/19

11:10 am-3:50 pm

2 stops18h 40m

Bucharest Otopeni Intl

Thu 2/26

4:50 pm-11:25 am

1 stop28h 35m

$538

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/10

9:00 am-3:45 pm

2 stops20h 45m

Bucharest Otopeni Intl

Mon 2/16

8:05 am-4:55 pm

1 stop18h 50m

$543

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 11/27

9:11 am-3:25 pm

2 stops20h 14m

Bucharest Otopeni Intl

Thu 12/4

8:35 am-11:25 am

1 stop36h 50m

$544

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

2:05 pm-10:50 pm

2 stops22h 45m

Bucharest Otopeni Intl

Tue 12/16

6:05 am-4:54 pm

2 stops20h 49m

$554

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 11/28

6:13 am-2:10 pm

2 stops21h 57m

Bucharest Otopeni Intl

Fri 12/5

5:55 am-9:00 pm

3 stops25h 05m

$560

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 11/18

10:05 am-6:35 pm

2 stops22h 30m

Bucharest Otopeni Intl

Tue 12/16

5:55 am-12:10 pm

1 stop16h 15m

$571

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

7:00 pm-8:20 pm

1 stop15h 20m

Bucharest Otopeni Intl

Tue 12/16

3:30 pm-5:05 pm

1 stop35h 35m

$615

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 19 results
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Best time to book a flight from Washington to Otopeni Intl

Have a flexible travel schedule? Discover the best time to fly to Otopeni Intl from Washington 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 Washington to Bucharest Otopeni Intl Airport

What is the cheapest month to book a flight from State of Washington to Bucharest Otopeni Intl Airport?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Bucharest Otopeni Intl Airport (average of $558). Flying from State of Washington to Bucharest Otopeni Intl Airport in December is currently the most expensive (average of $896). 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 WA to OTP?

Find hourly flight availability from Washington to Otopeni Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s optimal to fly from State of Washington to Bucharest Otopeni Intl Airport at noon. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from State of Washington to Bucharest Otopeni Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Washington to Otopeni Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Bucharest Otopeni Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Washington to Otopeni 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 State of Washington to Bucharest Otopeni Intl Airport?

    A quick flight from State of Washington to Bucharest Otopeni Intl Airport can take about 17h 25m. Lufthansa provides one of the quickest options available for as low as $527. There are 5791 mi between State of Washington and Bucharest Otopeni Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Otopeni 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 State of Washington to Bucharest Otopeni Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Bucharest Otopeni Intl Airport (average of $558). Flying from State of Washington to Bucharest Otopeni Intl Airport in December is currently the most expensive (average of $896). 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
Otopeni

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Alternative routes for Washington to Otopeni Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Washington to Otopeni Intl

Discover the top 5 airlines that operate flights from Washington to Otopeni 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$585Average$1,121FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$585Average$966FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$596Average$1,064FlexibilityNo cancel feeOn-time77%
KLMCheapest$656Average$932FlexibilityNo cancel feeOn-time75%
DeltaCheapest$684Average$952FlexibilityNo cancel feeOn-timeN/A

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