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Otopeni Intl

$451+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OTP
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Bucharest Otopeni Intl are usually found in February or October, booked 73 days in advance, depart on a Sunday or Saturday and return on a Saturday

Cheap 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$608
(SmartFares)

One-way from

$451
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,007
Provider with most accurate pricing for Seattle/Tacoma Intl-Bucharest Otopeni Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bucharest Otopeni Intl flights.
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From Seattle/Tacoma Intl to Bucharest Otopeni Intl
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One-way flight from Seattle/Tacoma Intl to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 15% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($108 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 30, 2025.

This SmartFares deal was found by Cheapflights users on 4/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/138:15 pmSEA - OTP
2 stops38h 55mScandinavian Airlines
Sun 8/249:25 pmOTP - SEA
1 stop26h 25mScandinavian Airlines
Deal found 4/28$608
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/282:35 pmSEA - OTP
1 stop23h 30mMultiple Airlines
Thu 11/64:40 pmOTP - SEA
1 stop28h 40mMultiple Airlines
Deal found 4/28$640
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:41 pmSEA - OTP
2 stops23h 49mBritish Airways
Wed 11/198:05 amOTP - SEA
1 stop18h 50mBritish Airways
Deal found 4/28$646
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:10 pmSEA - OTP
1 stop33h 25mTurkish Airlines
Thu 6/59:30 amOTP - SEA
1 stop17h 45mTurkish Airlines
Deal found 4/29$711
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1212:20 amSEA - OTP
2 stops25h 35mUnited Airlines
Sun 8/246:05 amOTP - SEA
2 stops26h 54mUnited Airlines
Deal found 4/28$719
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 10/2712:40 amSEA - OTP
2 stops27h 30mDelta
Thu 11/66:00 amOTP - SEA
2 stops18h 59mDelta
Deal found 4/28$747
This Air Canada deal was found by Cheapflights users on 4/29. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/217:20 amSEA - OTP
2 stops25h 15mAir Canada
Thu 6/56:00 amOTP - SEA
2 stops26h 13mAir Canada
Deal found 4/29$813
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:50 pmSEA - OTP
1 stop20h 10mLufthansa
Fri 8/86:00 amOTP - SEA
1 stop15h 55mLufthansa
Deal found 4/28$893
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/164:25 pmSEA - OTP
1 stop22h 40mSWISS
Mon 6/304:10 pmOTP - SEA
2 stops40h 32mSWISS
Deal found 4/28$1,150

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 April 30, 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

Wed 8/13

8:15 pm-9:10 pm

2 stops38h 55m

Bucharest Otopeni Intl

Sun 8/24

9:25 pm-1:50 pm

1 stop26h 25m

$608

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 5/21

7:10 pm-2:35 pm

1 stop33h 25m

Bucharest Otopeni Intl

Thu 6/5

9:30 am-5:15 pm

1 stop17h 45m

$711

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 8/12

12:20 am-11:55 am

2 stops25h 35m

Bucharest Otopeni Intl

Sun 8/24

6:05 am-10:59 pm

2 stops26h 54m

$719

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 5/21

7:20 am-6:35 pm

2 stops25h 15m

Bucharest Otopeni Intl

Thu 6/5

6:00 am-10:13 pm

2 stops26h 13m

$813

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 6/12

11:44 am-10:50 pm

2 stops25h 06m

Bucharest Otopeni Intl

Thu 6/19

8:35 am-11:59 pm

2 stops25h 24m

$830

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 7/20

6:50 pm-1:00 am

1 stop20h 10m

Bucharest Otopeni Intl

Fri 8/8

6:00 am-11:55 am

1 stop15h 55m

$893

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 6/16

4:25 pm-1:05 am

1 stop22h 40m

Bucharest Otopeni Intl

Mon 6/30

4:10 pm-10:42 pm

2 stops40h 32m

$1,150

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 6/13

1:30 pm-11:50 pm

1 stop24h 20m

Bucharest Otopeni Intl

Fri 6/20

8:25 am-6:20 pm

1 stop19h 55m

$1,206

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 5/27

5:15 pm-1:20 am

1 stop22h 05m

Bucharest Otopeni Intl

Tue 6/3

2:20 am-1:25 pm

1 stop21h 05m

$1,754

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 6/12

11:30 pm-11:40 am

2 stops26h 10m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Bucharest Otopeni Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 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 73 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, November is the cheapest month in which you can book a flight from Seattle to Bucharest Otopeni Intl Airport (average of $604). Flying from Seattle to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,169). 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 April 30, 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 64% 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.

Rainfall in Otopeni Intl by month

Plan your trip to Otopeni Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bucharest Otopeni Intl Airport ranges from 0.8 - 3.1 inches per month. June is typically the wettest month, when rainfall can reach 3.1 in. October is typically the driest time to visit Bucharest Otopeni Intl Airport when rainfall is around 0.8 in.

Temperature in Otopeni Intl by month

Plan your trip to Otopeni Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bucharest Otopeni Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 30, 2025.
Get a feel of what it's like to fly with Emirates, SWISS and United Airlines from Seattle to Bucharest by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.0
Very good
3,213 reviews
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,588 reviews
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
United Airlines
7.4
Good
8,696 reviews
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,788 reviews
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Scandinavian Airlines
7.3
Good
1,349 reviews
Emirates
8.0
Very good
3,213 reviews

Entertainment

8.2

Comfort

8.0

Crew

8.3

Overall

8.0

Boarding

8.1

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 6 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    Scandinavian Airlines, at $608, was found to be the cheapest airline from Seattle to Bucharest Otopeni Intl Airport.Alternate airlines to your destination round-trip include Turkish Airlines and United Airlines. Scandinavian Airlines is currently priced 40% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Bucharest Otopeni Intl Airport one-way?

    The cheapest airlines for a one-way flight from Seattle to Bucharest Otopeni Intl Airport are Lufthansa ($556), Turkish Airlines ($709), and SWISS ($893).

  • 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, November is the cheapest month in which you can book a flight from Seattle to Bucharest Otopeni Intl Airport (average of $604). Flying from Seattle to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,169). 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.

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Top 6 airlines flying from Seattle to Otopeni Intl

Discover the top 6 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$624Average$1,121FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$633Average$1,092FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$650Average$1,087FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$679Average$990FlexibilityNo cancel feeOn-time77%
DeltaCheapest$684Average$1,190FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$723Average$1,033FlexibilityNo cancel feeOn-time75%

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