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Otopeni Intl

$356+ 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OTP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Bucharest Otopeni Intl are usually found in October or February, booked 83 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 September 11, 2025.

Round-trip from

$537
(Kiwi.com)

One-way from

$356
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$896
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. 20% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease ($113 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 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 September 11, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:50 pmSEA - OTP
1 stop20h 10mLufthansa
Tue 11/45:55 amOTP - SEA
2 stops22h 57mLufthansa
Deal found 9/10$537
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:20 pmSEA - OTP
1 stop19h 05mBritish Airways
Mon 12/228:25 pmOTP - SEA
1 stop25h 05mBritish Airways
Deal found 9/8$551
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/282:25 pmSEA - OTP
1 stop15h 20mBritish Airways
Thu 11/68:00 amOTP - SEA
1 stop18h 55mBritish Airways
Deal found 9/11$552
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:30 pmSEA - OTP
2 stops26h 35mLufthansa
Thu 11/65:50 amOTP - SEA
1 stop16h 20mLufthansa
Deal found 9/11$555
This Air Canada deal was found by Cheapflights users on 9/9. 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.
Tue 10/288:00 pmSEA - OTP
2 stops33h 00mAir Canada
Thu 11/65:50 amOTP - SEA
2 stops26h 16mAir Canada
Deal found 9/9$559
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:00 pmSEA - OTP
2 stops33h 00mMultiple Airlines
Thu 11/65:50 amOTP - SEA
1 stop16h 20mMultiple Airlines
Deal found 9/10$560
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/191:12 pmSEA - OTP
2 stops19h 23mUnited Airlines
Tue 11/45:55 amOTP - SEA
2 stops26h 50mUnited Airlines
Deal found 9/10$562
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/283:37 pmSEA - OTP
2 stops23h 18mUnited Airlines
Thu 11/65:50 amOTP - SEA
3 stops27h 25mUnited Airlines
Deal found 9/9$575
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:10 pmSEA - OTP
1 stop27h 00mTurkish Airlines
Fri 10/179:45 pmOTP - SEA
1 stop22h 50mTurkish Airlines
Deal found 9/11$581

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 September 11, 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 10/19

6:50 pm-1:00 am

1 stop20h 10m

Bucharest Otopeni Intl

Tue 11/4

5:55 am-6:52 pm

2 stops22h 57m

$537

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 10/20

8:20 pm-1:25 am

1 stop19h 05m

Bucharest Otopeni Intl

Mon 12/22

8:25 pm-11:30 am

1 stop25h 05m

$551

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

2:25 pm-10:55 pm

1 stop23h 30m

Bucharest Otopeni Intl

Thu 11/6

8:00 am-4:55 pm

1 stop18h 55m

$552

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

1:30 pm-1:05 am

2 stops26h 35m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-12:10 pm

1 stop16h 20m

$555

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

8:00 pm-2:00 pm

2 stops33h 00m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-10:06 pm

2 stops26h 16m

$559

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

3:00 pm-1:55 pm

1 stop13h 55m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-7:16 pm

2 stops23h 26m

$560

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 11/22

8:12 am-12:55 pm

2 stops42h 43m

$356

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 11/22

1:35 pm-11:45 pm

1 stop24h 10m

$593

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 11/22

1:40 pm-10:50 pm

1 stop23h 10m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 August 29, 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 83 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 $1,130). 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 September 11, 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.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United 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
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,968 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Departing from Seattle to Bucharest Otopeni Intl Airport will take you 19h 05m. 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?

    Lufthansa, at $585, 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. Lufthansa is currently priced 39% 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, 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 $1,130). 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 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$585Average$1,003FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$599Average$882FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$624Average$1,121FlexibilityNo cancel feeOn-time69%
DeltaCheapest$684Average$921FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$699Average$749FlexibilityNo cancel feeOn-time77%
KLMCheapest$705Average$932FlexibilityNo cancel feeOn-time75%

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