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$447+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — SEA
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap 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 July 27, 2026.

This Mytrip deal was found by Cheapflights users on 7/25. 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.
Tue 9/86:45 pm
OTP
-
SEA
2 stops27h 00m
Multiple Airlines
Tue 9/157:00 pm
SEA
-
OTP
2 stops19h 35m
Multiple Airlines
Deal found 7/25$707
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:40 pm
OTP
-
SEA
3 stops33h 15m
Multiple Airlines
Wed 9/167:00 pm
SEA
-
OTP
3 stops34h 20m
Multiple Airlines
Deal found 7/26$809
This Gotogate deal was found by Cheapflights users on 7/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:10 pm
OTP
-
SEA
1 stop29h 35m
Qatar Airways
Wed 9/234:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/26$817
This Gotogate deal was found by Cheapflights users on 7/25. 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.
Tue 9/85:10 pm
OTP
-
SEA
1 stop29h 35m
Qatar Airways
Tue 9/154:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/25$818
This Gotogate deal was found by Cheapflights users on 7/24. 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.
Thu 9/35:10 pm
OTP
-
SEA
1 stop29h 35m
Qatar Airways
Wed 9/164:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/24$819
This Qatar Airways deal was found by Cheapflights users on 7/22. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:10 pm
OTP
-
SEA
1 stop29h 35m
Qatar Airways
Mon 9/284:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/22$828
This oojo deal was found by Cheapflights users on 7/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:40 am
OTP
-
SEA
1 stop36h 05m
Qatar Airways
Wed 9/164:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/26$831
This oojo deal was found by Cheapflights users on 7/24. 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.
Mon 9/710:40 am
OTP
-
SEA
1 stop36h 05m
Qatar Airways
Mon 9/214:25 pm
SEA
-
OTP
1 stop29h 20m
Qatar Airways
Deal found 7/24$832

Find 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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$707
(Mytrip)

One-way from

$447
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$1,036
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.
Search Deals
From Bucharest Otopeni Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Bucharest Otopeni Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 27, 2026.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sun 9/13

5:10 pm-12:45 pm

1 stop29h 35m

Seattle/Tacoma Intl

Mon 9/28

4:25 pm-7:45 am

1 stop29h 20m

$828

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 9/10

5:10 pm-8:01 pm

2 stops36h 51m

Seattle/Tacoma Intl

Wed 9/23

4:25 pm-7:45 am

1 stop29h 20m

$969

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/10

5:10 pm-12:25 pm

1 stop29h 15m

Seattle/Tacoma Intl

Wed 10/14

4:25 pm-7:45 am

1 stop29h 20m

$976

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 9/3

5:10 pm-12:45 pm

1 stop29h 35m

Seattle/Tacoma Intl

Wed 9/16

10:41 am-7:45 am

2 stops35h 04m

$985

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sun 9/13

3:55 pm-10:45 pm

2 stops40h 50m

Seattle/Tacoma Intl

Mon 9/28

1:19 pm-8:10 am

2 stops32h 51m

$1,029
Quickest round-trip

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/10

12:05 pm-5:20 pm

1 stop15h 15m

Seattle/Tacoma Intl

Wed 10/14

10:42 am-2:35 pm

2 stops41h 53m

$1,056
Cheapest one-way

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Tue 9/22

10:00 pm-9:40 am

3 stops45h 40m

$454

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Wed 9/9

7:50 pm-4:00 pm

3 stops54h 10m

$456
Quickest one-way

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Tue 9/8

8:35 am-3:40 pm

1 stop17h 05m

$494

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Tue 9/22

8:35 am-3:40 pm

1 stop17h 05m

$550

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Bucharest Otopeni Intl Airport-Seattle 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-Seattle flight deals on Cheapflights vs. FlightHub >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 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-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, December is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $813). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $1,281). 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.

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

Airfare is below average for this route at the moment.

Bucharest Otopeni Intl Airport to Seattle flights typically cost between $1,008 and $1,146 in September.
The cheapest round-trip price found within the last 5 days was $707 on Multiple Airlines (Sep 8-Sep 15).

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 July 27, 2026.
Get a feel of what it's like to fly with Delta and Turkish Airlines 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.
Delta
7.8
Good
8,487 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,487 reviews
Delta
7.8
Good
8,487 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Turkish Airlines
7.4
Good
4,451 reviews
Delta
7.8
Good
8,487 reviews

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 29h 35m. 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 Delta. You may be able to fly from Bucharest Otopeni Intl Airport to Seattle for 22% 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, December is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $813). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $1,281). 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
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
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Tumwater
Tukwila
Centralia
Puyallup
Kent
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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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$790Average$1,002FlexibilityNo cancel feeOn-time77%
DeltaCheapest$820Average$991FlexibilityNo cancel feeOn-timeN/A

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