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$490+ Cheap flights from Otopeni Intl (OTP) to Seattle (SEA)

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Seattle/Tacoma Intl are usually found in February or April, booked 52 days in advance, depart on a Saturday or Thursday and return on a Sunday

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 septiembre 11, 2025.

Round-trip from

$582
(Lucky2Go)

One-way from

$490
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$1,060
From Bucharest Otopeni Intl to Seattle/Tacoma Intl
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One-way flight from Bucharest Otopeni Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 4% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This Lucky2Go deal was found by Cheapflights users on 9/10. 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 Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/279:25 pmOTP - SEA
2 stops36h 59mScandinavian Airlines
vie. 10/104:20 pmSEA - OTP
1 stop18h 15mScandinavian Airlines
Deal found 9/10$582
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/139:25 pmOTP - SEA
1 stop26h 35mScandinavian Airlines
vie. 9/2612:45 pmSEA - OTP
2 stops21h 50mScandinavian Airlines
Deal found 9/11$698
This Mytrip deal was found by Cheapflights users on 9/11. 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.
jue. 9/257:15 pmOTP - SEA
2 stops31h 44mMultiple Airlines
mar. 9/302:20 pmSEA - OTP
2 stops24h 35mMultiple Airlines
Deal found 9/11$756
This Mytrip deal was found by Cheapflights users on 9/11. 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.
sáb. 10/44:30 amOTP - SEA
3 stops26h 10mMultiple Airlines
vie. 10/177:00 pmSEA - OTP
3 stops20h 50mMultiple Airlines
Deal found 9/11$766
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/48:25 amOTP - SEA
2 stops34h 56mAmerican Airlines
vie. 10/176:10 amSEA - OTP
2 stops31h 40mAmerican Airlines
Deal found 9/11$817
This British Airways deal was found by Cheapflights users on 9/11. 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.
sáb. 10/48:05 pmOTP - SEA
1 stop25h 25mBritish Airways
vie. 10/171:30 pmSEA - OTP
1 stop24h 20mBritish Airways
Deal found 9/11$843
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/258:25 amOTP - SEA
1 stop19h 55mBritish Airways
mar. 9/308:20 pmSEA - OTP
1 stop19h 05mBritish Airways
Deal found 9/11$849
This Mytrip deal was found by Cheapflights users on 9/11. 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.
dom. 10/262:40 pmOTP - SEA
2 stops31h 30mMultiple Airlines
dom. 11/23:10 pmSEA - OTP
3 stops23h 20mMultiple Airlines
Deal found 9/11$883

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 septiembre 11, 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

sáb. 9/27

9:25 pm-12:24 am

2 stops36h 59m

Seattle/Tacoma Intl

vie. 10/10

4:20 pm-8:35 pm

1 stop18h 15m

$582

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

sáb. 10/4

9:25 pm-2:00 pm

1 stop26h 35m

Seattle/Tacoma Intl

vie. 10/17

4:20 pm-8:35 pm

1 stop18h 15m

$630

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

jue. 9/25

7:15 pm-4:59 pm

2 stops31h 44m

Seattle/Tacoma Intl

mar. 9/30

2:20 pm-12:55 am

2 stops24h 35m

$756

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

sáb. 10/4

8:25 am-9:21 am

2 stops34h 56m

Seattle/Tacoma Intl

vie. 10/17

6:10 am-11:50 pm

2 stops31h 40m

$817

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

sáb. 10/4

8:05 pm-11:30 am

1 stop25h 25m

Seattle/Tacoma Intl

vie. 10/17

1:30 pm-11:50 pm

1 stop24h 20m

$843

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

jue. 9/25

8:25 am-6:20 pm

1 stop19h 55m

Seattle/Tacoma Intl

mar. 9/30

8:20 pm-1:25 am

1 stop19h 05m

$849

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

dom. 10/26

2:40 pm-1:10 pm

2 stops31h 30m

Seattle/Tacoma Intl

dom. 11/2

3:10 pm-12:30 am

3 stops23h 20m

$883

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

mar. 11/4

8:00 am-4:55 pm

1 stop18h 55m

$568

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

mié. 11/5

8:05 am-4:55 pm

1 stop18h 50m

$568

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

lun. 11/3

8:05 am-11:30 am

1 stop37h 25m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 results
1
2

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

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

Use this chart to determine the optimal time to book a round-trip flight from Otopeni Intl to Seattle. Price data was last updated on August 29, 2025.

The best time to book flights from Bucharest Otopeni Intl Airport to Seattle is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $238). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $388). 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 septiembre 11, 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
3,968 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Food

7.4

Crew

7.7

Boarding

7.3

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
3,968 reviews
Turkish Airlines
7.3
Good
3,968 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Food

7.4

Crew

7.7

Boarding

7.3

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
7,409 reviews
Turkish Airlines
7.3
Good
3,968 reviews

Comfort

7.3

Entertainment

7.4

Overall

7.3

Food

7.4

Crew

7.7

Boarding

7.3

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 36h 59m. 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 15% 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, January is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $238). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $388). 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
SeaTac
Tukwila
Tacoma
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Olympia
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Shoreline

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$790Average$898FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$808Average$1,060FlexibilityNo cancel feeOn-time76%

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