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$661+ Cheap flights from Otopeni Intl (OTP) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — SEA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Otopeni Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) to Seattle (SEA). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$661
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$846
Provider with most accurate pricing for Bucharest Otopeni Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Seattle/Tacoma Intl flights.
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From Bucharest Otopeni Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 12% potential increase in price ($129 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 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 Otopeni Intl to Seattle

Cheapest flights from Otopeni Intl to Seattle
Explore the most affordable flight options available from Otopeni Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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.
Thu 11/136:55 amOTP - SEA
2 stops18h 45mMultiple Airlines
Thu 11/275:40 pmSEA - OTP
2 stops17h 40mMultiple Airlines
Deal found 10/27$661
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:50 amOTP - SEA
2 stops23h 02mLufthansa
Thu 11/2710:53 amSEA - OTP
2 stops21h 42mLufthansa
Deal found 10/28$836
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.
Wed 11/59:50 pmOTP - SEA
1 stop29h 15mTurkish Airlines
Mon 12/87:00 pmSEA - OTP
1 stop15h 30mTurkish Airlines
Deal found 10/28$840
This Booking.com deal was found by Cheapflights users on 10/26. 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.
Mon 11/175:55 amOTP - SEA
1 stop16h 15mLufthansa
Mon 2/1610:05 amSEA - OTP
2 stops18h 00mLufthansa
Deal found 10/26$848

Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl to Seattle 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 28, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Seattle that are best for you.

Fly from

Otopeni Intl

Fly to

Seattle

Route

Depart

Return

Price

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 11/13

6:55 am-3:40 pm

2 stops18h 45m

Seattle/Tacoma Intl

Thu 11/27

5:40 pm-9:20 pm

2 stops17h 40m

$661

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 11/13

5:50 am-6:52 pm

2 stops23h 02m

Seattle/Tacoma Intl

Thu 11/27

10:53 am-6:35 pm

2 stops21h 42m

$836

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Mon 11/17

5:55 am-12:10 pm

1 stop16h 15m

Seattle/Tacoma Intl

Mon 2/16

10:05 am-2:05 pm

2 stops18h 00m

$848

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 11/13

5:50 am-6:52 pm

2 stops23h 02m

Seattle/Tacoma Intl

Thu 11/27

7:00 am-2:05 pm

2 stops21h 05m

$854

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 4/4

8:35 am-3:40 pm

1 stop17h 05m

$790

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sun 4/5

5:00 pm-3:40 pm

1 stop32h 40m

$934

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 4/4

8:25 am-6:25 pm

1 stop20h 00m

$1,952

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 4/3

2:20 am-1:25 pm

1 stop21h 05m

$4,813

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Otopeni Intl to Seattle

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 Seattle in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bucharest Otopeni Intl Airport-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bucharest Otopeni Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest Otopeni Intl Airport-Seattle flights, Cheapflights users trust eDreams the most. eDreams 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-Seattle 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 Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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 Seattle

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Seattle?

Currently, February is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $587). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $844). 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated October 28, 2025.
Get a feel of what it's like to fly with Turkish Airlines and Lufthansa from Bucharest Otopeni Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,029 reviews

Boarding

7.3

Entertainment

7.4

Crew

7.7

Comfort

7.3

Overall

7.3

Food

7.4

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.
Turkish Airlines
7.3
Good
4,029 reviews
Turkish Airlines
7.3
Good
4,029 reviews

Boarding

7.3

Entertainment

7.4

Crew

7.7

Comfort

7.3

Overall

7.3

Food

7.4

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.
Lufthansa
6.8
Okay
7,532 reviews
Turkish Airlines
7.3
Good
4,029 reviews

Boarding

7.3

Entertainment

7.4

Crew

7.7

Comfort

7.3

Overall

7.3

Food

7.4

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Bucharest Otopeni Intl?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Bucharest Otopeni Intl to Seattle. 2 airlines have flights to Seattle/Tacoma Intl from Bucharest Otopeni Intl on a regular basis. Booking flights from Bucharest Otopeni Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Bucharest Otopeni Intl per day.

  • How long is the flight from Bucharest Otopeni Intl Airport to Seattle?

    Departing from Bucharest Otopeni Intl Airport to Seattle will take you 23h 02m. Airlines will cover a distance of 5791 mi.

  • What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Seattle round-trip?

    Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Seattle round-trip from $790. Another airline that can offer you cheap pricing is Lufthansa. You may be able to fly from Bucharest Otopeni Intl Airport to Seattle for 11% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Otopeni Intl to Seattle 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 Seattle?

    Currently, February is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $587). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $844). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
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Tacoma
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Alternative routes for Otopeni Intl to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Otopeni Intl to Portland flights

Top 2 airlines flying from Otopeni Intl to Seattle

Discover the top 2 airlines that operate flights from Otopeni Intl to Seattle. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$790Average$898FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$808Average$992FlexibilityNo cancel feeOn-time76%

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