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Otopeni Intl

$489+ Cheap flights from Seattle (SEA) 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OTP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Bucharest Otopeni Intl are usually found in October or September, booked 23 days in advance, depart on a Sunday or Saturday and return on a Saturday

Cheap flight deals from Seattle to Otopeni Intl

Cheapest flights from Seattle to Otopeni Intl
Explore the most affordable flight options available from Seattle to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:53 pmSEA - OTP
2 stops38h 42mUnited Airlines
Wed 1/72:40 pmOTP - SEA
2 stops56h 40mUnited Airlines
Deal found 12/11$887
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:10 pmSEA - OTP
1 stop23h 55mLufthansa
Wed 1/72:40 pmOTP - SEA
2 stops42h 03mLufthansa
Deal found 12/11$1,112
This oojo deal was found by Cheapflights users on 12/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:00 pmSEA - OTP
1 stop15h 25mTurkish Airlines
Wed 1/73:30 pmOTP - SEA
1 stop35h 35mTurkish Airlines
Deal found 12/11$1,127
This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:40 pmSEA - OTP
3 stops23h 25mMultiple Airlines
Wed 1/76:05 amOTP - SEA
3 stops26h 01mMultiple Airlines
Deal found 12/11$1,157
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/143:10 pmSEA - OTP
2 stops34h 20mMultiple Airlines
Wed 12/248:35 amOTP - SEA
1 stop17h 05mMultiple Airlines
Deal found 12/11$1,279
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:40 pmSEA - OTP
2 stops21h 55mMultiple Airlines
Wed 12/248:35 amOTP - SEA
1 stop17h 05mMultiple Airlines
Deal found 12/11$1,372
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmSEA - OTP
2 stops22h 30mMultiple Airlines
Wed 12/2410:15 amOTP - SEA
1 stop16h 50mMultiple Airlines
Deal found 12/11$1,399
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmSEA - OTP
2 stops22h 30mMultiple Airlines
Thu 12/2510:00 pmOTP - SEA
1 stop29h 05mMultiple Airlines
Deal found 12/11$1,458
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmSEA - OTP
2 stops22h 30mMultiple Airlines
Fri 12/2610:10 amOTP - SEA
1 stop16h 55mMultiple Airlines
Deal found 12/11$1,504
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:00 pmSEA - OTP
2 stops18h 45mMultiple Airlines
Wed 12/248:35 amOTP - SEA
1 stop17h 05mMultiple Airlines
Deal found 12/11$1,573
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/143:10 pmSEA - OTP
2 stops17h 15mMultiple Airlines
Thu 12/2510:10 amOTP - SEA
1 stop16h 55mMultiple Airlines
Deal found 12/11$1,600

Find flight deals from Seattle to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Otopeni Intl (OTP). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$493
(Kiwi.com)

One-way from

$489
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$2,277
Provider with most accurate pricing for Seattle/Tacoma Intl-Bucharest Otopeni Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bucharest Otopeni Intl flights.
Search Deals
From Seattle/Tacoma Intl to Bucharest Otopeni Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($343 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($122 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 December 12, 2025.
Use the filters below to find and compare flights from Seattle to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Seattle

Fly to

Otopeni Intl

Route

Depart

Return

Price

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 1/25

3:10 pm-1:05 am

1 stop23h 55m

Bucharest Otopeni Intl

Sun 2/1

6:05 am-1:20 pm

1 stop17h 15m

$493

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 1/25

8:10 am-3:50 pm

2 stops21h 40m

Bucharest Otopeni Intl

Sun 2/1

6:05 am-10:06 pm

2 stops26h 01m

$531

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 1/12

2:10 pm-10:50 pm

1 stop22h 40m

Bucharest Otopeni Intl

Mon 1/26

6:00 am-11:50 am

1 stop15h 50m

$534

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/16

2:10 pm-11:25 pm

2 stops23h 15m

Bucharest Otopeni Intl

Sat 1/31

8:05 am-4:55 pm

1 stop18h 50m

$534

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 1/15

6:50 pm-11:45 pm

1 stop18h 55m

Bucharest Otopeni Intl

Thu 1/22

8:00 am-4:55 pm

1 stop18h 55m

$535

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 1/14

6:50 pm-3:45 pm

1 stop34h 55m

Bucharest Otopeni Intl

Sun 1/18

7:35 am-4:55 pm

1 stop19h 20m

$537

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 1/12

2:10 pm-1:05 am

2 stops24h 55m

Bucharest Otopeni Intl

Mon 1/26

5:55 am-8:57 pm

2 stops25h 02m

$541

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/24

2:35 pm-12:45 am

2 stops24h 10m

$489

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/24

2:05 pm-8:10 pm

1 stop20h 05m

$637

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/24

9:35 am-5:10 pm

2 stops21h 35m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 16 results
1
2

Compare providers for flights from Seattle to Otopeni 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 Seattle to Otopeni Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 Seattle-Bucharest Otopeni Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Bucharest Otopeni Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Bucharest Otopeni Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Bucharest Otopeni Intl Airport 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 Seattle-Bucharest Otopeni 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 Seattle to Otopeni Intl

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

How far ahead should I book a flight from Seattle to Bucharest Otopeni Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Otopeni Intl. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Bucharest Otopeni Intl Airport, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Bucharest Otopeni Intl Airport (average of $540). Flying from Seattle to Bucharest Otopeni Intl Airport in February is currently the most expensive (average of $750). 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 SEA to OTP?

Find hourly flight availability from Seattle 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 December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Bucharest Otopeni Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 63% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Seattle to Bucharest Otopeni Intl Airport?

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

Travelers seeking maximum savings on their Seattle to Bucharest Otopeni Intl Airport flight should consider departing on Friday 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.

How much does it cost to fly round-trip from Seattle to Bucharest Otopeni Intl Airport?

Reviews of airlines servicing Otopeni Intl

Get insights into the airlines that provide service to Otopeni 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 Otopeni Intl. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Turkish Airlines from Seattle to Bucharest Otopeni Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,432 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Turkish Airlines
7.3
Good
4,089 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,626 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,571 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Otopeni Intl. 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 from for flights from Seattle to Bucharest Otopeni Intl?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Bucharest Otopeni Intl. On average, Seattle/Tacoma Intl has 0 outbound flights to Bucharest Otopeni Intl per day from 7 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    Departing from Seattle to Bucharest Otopeni Intl Airport will take you 22h 40m. Airlines will cover a distance of 5791 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    British Airways, at $553, was found to be the cheapest airline from Seattle to Bucharest Otopeni Intl Airport.Alternate airlines to your destination round-trip include Lufthansa and United Airlines. British Airways is currently priced 41% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Bucharest Otopeni Intl Airport (average of $540). Flying from Seattle to Bucharest Otopeni Intl Airport in February is currently the most expensive (average of $750). 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 Seattle to Otopeni Intl

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

Top 7 airlines flying from Seattle to Otopeni Intl

Discover the top 7 airlines that operate flights from Seattle 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$553Average$635FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$581Average$922FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$585Average$1,121FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$591Average$1,005FlexibilityNo cancel feeOn-time77%
KLMCheapest$656Average$932FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$699Average$807FlexibilityNo cancel feeOn-time77%
DeltaCheapest$772Average$1,011FlexibilityNo cancel feeOn-timeN/A

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