HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Otopeni Intl

$502+ Cheap flights from Seattle (SEA) to Otopeni Intl (OTP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OTP
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Otopeni Intl with Cheapflights

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 junio 12, 2025.

Round-trip from

$618
(Expedia)

One-way from

$576
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,439
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. 16% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($110 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 junio 12, 2025.

This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/34:20 pmSEA - OTP
1 stop18h 15mScandinavian Airlines
sáb. 10/119:25 pmOTP - SEA
1 stop26h 35mScandinavian Airlines
Deal found 6/11$502
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/282:35 pmSEA - OTP
1 stop15h 10mBritish Airways
jue. 11/68:05 amOTP - SEA
1 stop18h 50mBritish Airways
Deal found 6/10$602
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2810:00 amSEA - OTP
2 stops23h 30mMultiple Airlines
jue. 11/65:55 amOTP - SEA
1 stop16h 15mMultiple Airlines
Deal found 6/11$604
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 10/288:36 amSEA - OTP
3 stops20h 19mUnited Airlines
jue. 11/65:55 amOTP - SEA
2 stops23h 02mUnited Airlines
Deal found 6/10$622
This FlightHub deal was found by Cheapflights users on 6/10. 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.
jue. 8/712:30 pmSEA - OTP
1 stop21h 55mTurkish Airlines
vie. 8/159:30 amOTP - SEA
1 stop35h 05mTurkish Airlines
Deal found 6/10$629
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2712:40 amSEA - OTP
2 stops27h 30mDelta
jue. 11/66:00 amOTP - SEA
2 stops22h 30mDelta
Deal found 6/10$748
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/114:25 pmSEA - OTP
1 stop22h 40mSWISS
dom. 8/244:10 pmOTP - SEA
1 stop32h 45mSWISS
Deal found 6/11$759
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/191:45 pmSEA - OTP
2 stops18h 10mAir Canada
sáb. 11/85:55 amOTP - SEA
2 stops22h 31mAir Canada
Deal found 6/10$798
This Ovago deal was found by Cheapflights users on 6/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/710:00 amSEA - OTP
2 stops20h 50mLufthansa
dom. 8/176:05 amOTP - SEA
1 stop20h 54mLufthansa
Deal found 6/10$801
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/86:40 pmSEA - OTP
1 stop19h 15mAir France
sáb. 8/168:40 amOTP - SEA
1 stop18h 55mAir France
Deal found 6/11$808

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 junio 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

lun. 9/8

4:00 pm-1:00 pm

2 stops35h 00m

Bucharest Otopeni Intl

lun. 9/15

9:50 pm-10:13 pm

2 stops34h 23m

$618

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

jue. 8/7

12:30 pm-8:25 pm

1 stop21h 55m

Bucharest Otopeni Intl

vie. 8/15

9:30 am-10:35 am

1 stop35h 05m

$629

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

dom. 8/10

12:20 am-11:55 am

2 stops25h 35m

Bucharest Otopeni Intl

dom. 8/24

1:55 pm-3:14 pm

2 stops35h 19m

$674

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

lun. 9/8

10:00 am-4:50 pm

2 stops20h 50m

Bucharest Otopeni Intl

lun. 9/15

1:55 pm-11:55 am

1 stop32h 00m

$676

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

lun. 8/11

4:25 pm-1:05 am

1 stop22h 40m

Bucharest Otopeni Intl

dom. 8/24

4:10 pm-2:55 pm

1 stop32h 45m

$759

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

jue. 8/7

10:00 am-4:50 pm

2 stops20h 50m

Bucharest Otopeni Intl

dom. 8/17

6:05 am-4:59 pm

1 stop20h 54m

$801

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

vie. 8/8

6:40 pm-11:55 pm

1 stop19h 15m

Bucharest Otopeni Intl

sáb. 8/16

8:40 am-5:35 pm

1 stop18h 55m

$808

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

sáb. 8/9

12:05 pm-1:15 pm

2 stops39h 10m

Bucharest Otopeni Intl

dom. 8/17

6:30 am-6:36 pm

2 stops22h 06m

$926

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

lun. 7/7

6:30 pm-12:10 pm

1 stop31h 40m

Bucharest Otopeni Intl

mié. 7/30

1:45 pm-11:35 am

1 stop31h 50m

$959

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

jue. 6/19

11:30 pm-11:55 pm

2 stops38h 25m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 9, 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 $1,146). 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 junio 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 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 junio 12, 2025.
Get a feel of what it's like to fly with Delta, Air France and SWISS 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.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
3,848 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

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.

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

    Scandinavian Airlines, at $618, 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 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 $1,146). 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
Otopeni

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$585Average$1,040FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$624Average$1,121FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$633Average$850FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$671Average$1,116FlexibilityNo cancel feeOn-time77%
DeltaCheapest$684Average$1,085FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$705Average$998FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.