HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bucharest

$363+ Cheap flights from Seattle (SEA) to Bucharest (BUH)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUH
Dec 9 — Dec 161
Tue 12/9
Tue 12/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Bucharest 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 are usually found in November or February, booked 66 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Seattle to Bucharest

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bucharest (BUH). 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 November 9, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$532
(Cheapflightsfares)

One-way from

$363
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$605
Provider with most accurate pricing for Seattle/Tacoma Intl-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bucharest (BUH) flights.
Search Deals
From Seattle/Tacoma Intl to Bucharest (BUH)
Search Deals
One-way flight from Seattle/Tacoma Intl to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Seattle to Bucharest

Cheapest flights from Seattle to Bucharest
Explore the most affordable flight options available from Seattle to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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 12/96:50 pmSEA - OTP
1 stop18h 05mBritish Airways
Thu 12/258:00 amOTP - SEA
1 stop18h 55mBritish Airways
Deal found 11/6$532
This Orbitz deal was found by Cheapflights users on 11/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:05 pmSEA - OTP
2 stops25h 20mMultiple Airlines
Sat 12/135:55 amOTP - SEA
1 stop16h 15mMultiple Airlines
Deal found 11/6$539
This Iberia deal was found by Cheapflights users on 11/6. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:18 amSEA - OTP
2 stops23h 27mMultiple Airlines
Thu 12/258:00 amOTP - SEA
1 stop18h 55mMultiple Airlines
Deal found 11/6$542
This Delta deal was found by Cheapflights users on 11/6. 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.
Tue 12/912:45 pmSEA - OTP
2 stops24h 05mDelta
Thu 12/256:00 amOTP - SEA
2 stops20h 33mDelta
Deal found 11/6$548
This SWISS deal was found by Cheapflights users on 11/6. 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.
Sat 12/62:52 pmSEA - OTP
2 stops38h 58mSWISS
Sat 12/134:40 pmOTP - SEA
2 stops40h 35mSWISS
Deal found 11/6$552
This Gotogate deal was found by Cheapflights users on 11/6. 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.
Sat 12/61:35 pmSEA - OTP
1 stop15h 30mBritish Airways
Sat 12/134:00 pmOTP - SEA
1 stop34h 55mBritish Airways
Deal found 11/6$653
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:15 pmSEA - OTP
2 stops38h 40mUnited Airlines
Tue 12/302:50 pmOTP - SEA
2 stops44h 09mUnited Airlines
Deal found 11/8$1,081

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Bucharest 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 November 9, 2025.
Use the filters below to find and compare flights from Seattle to Bucharest that are best for you.

Fly from

Seattle

Fly to

Bucharest

Route

Depart

Return

Price

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 1/11

3:10 pm-1:05 am

1 stop23h 55m

Bucharest Otopeni Intl

Sat 1/17

1:05 pm-1:20 pm

1 stop34h 15m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

12:45 pm-10:50 pm

2 stops24h 05m

Bucharest Otopeni Intl

Thu 12/25

6:00 am-4:33 pm

2 stops20h 33m

$548

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 12/6

2:52 pm-3:50 pm

2 stops38h 58m

Bucharest Otopeni Intl

Sat 12/13

4:40 pm-11:15 pm

2 stops40h 35m

$552

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 4/2

7:10 pm-8:25 pm

1 stop15h 15m

Bucharest Otopeni Intl

Tue 4/14

9:45 pm-5:15 pm

1 stop29h 30m

$596

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 12/6

1:35 pm-3:05 pm

1 stop15h 30m

Bucharest Otopeni Intl

Sat 12/13

4:00 pm-4:55 pm

1 stop34h 55m

$653

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 4/3

7:10 pm-8:25 pm

1 stop15h 15m

Bucharest Otopeni Intl

Tue 4/14

9:45 pm-5:15 pm

1 stop29h 30m

$653

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 2/14

12:37 pm-2:05 pm

3 stops39h 28m

Bucharest Otopeni Intl

Sat 2/21

2:50 pm-10:43 pm

2 stops41h 53m

$690

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 3/27

8:00 pm-7:10 am

1 stop26h 10m

Bucharest Otopeni Intl

Tue 3/31

9:30 am-5:15 pm

1 stop17h 45m

$709

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

2:35 pm-12:45 am

2 stops24h 10m

Bucharest Otopeni Intl

Thu 12/25

5:35 am-5:00 pm

3 stops21h 25m

$729

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 11/18

3:10 pm-6:55 pm

3 stops41h 45m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 15 results
1
2

Compare providers for flights from Seattle to Bucharest

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 Bucharest in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 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 flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Seattle-Bucharest flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Seattle-Bucharest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Bucharest flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 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 Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest 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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Bucharest. Price data was last updated on November 7, 2025.

The price you pay for your flight from Seattle to Bucharest may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $540). Flying from Seattle to Bucharest in December is currently the most expensive (average of $888). 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 BUH?

Find hourly flight availability from Seattle to Bucharest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 9, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 63% on flights from Seattle to Bucharest by exploring options for tickets in the morning.

What is the cheapest day to fly from Seattle to Bucharest?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Bucharest. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Bucharest 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?

What’s the top layover airport for flights from Seattle to Bucharest?

Share of 1-stop round-trip flights from Seattle to Bucharest chosen by Cheapflights users in the past 12 months, using the same layover each way.

Frankfurt am Main (FRA) – chosen by Cheapflights users on 50% of 1-stop itineraries from Seattle to Bucharest on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to Bucharest?

Average round-trip fare for 1-stop flights from Seattle to Bucharest, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $552.

What’s the fastest layover option from Seattle to Bucharest?

Shortest average travel time for 1-stop one-way flights from Seattle to Bucharest, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 13h 55m.

Which airport typically offers the quickest layover for flights from Seattle to Bucharest?

Average layover duration for 1-stop one-way flights from Seattle to Bucharest, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 2h 10m.

Reviews of airlines servicing Bucharest

Get insights into the airlines that provide service to Bucharest. 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 Bucharest. Reviews last updated November 9, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Seattle to Bucharest 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
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,003 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,408 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,486 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Turkish Airlines
7.3
Good
4,036 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,557 reviews
Delta
7.9
Good
8,003 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Bucharest. 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?

    If you book a flight to Bucharest from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Seattle/Tacoma Intl to Bucharest per day from 5 different airlines.

  • How long is the flight from Seattle to Bucharest?

    Lufthansa, Delta, and SWISS can get you from Seattle to Bucharest in just under 23h 55m. Your travel time can differ by up to 15h 03m. There are 5791 mi between Seattle and Bucharest. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Seattle to Bucharest round-trip from $581. Other airlines that can offer you cheap pricing are United Airlines, from $585, and Turkish Airlines, from $596. Lufthansa is currently priced 34% below the average price you’ll pay for this route.

  • Can I find deals for flights from Seattle to Bucharest that include hotel bookings?

    Yes. In addition to deals on Seattle to Bucharest flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Bucharest?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Bucharest.

  • Can I find deals for business class flights from Seattle to Bucharest?

    Yes. Cheapflights offers flight deals from Seattle to Bucharest 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?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $540). Flying from Seattle to Bucharest in December is currently the most expensive (average of $888). 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?

Book flights to Bucharest 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.

Top 5 airlines flying from Seattle to Bucharest

Discover the top 5 airlines that operate flights from Seattle to Bucharest. 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 November 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$581Average$955FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$585Average$1,121FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$596Average$1,115FlexibilityNo cancel feeOn-time77%
KLMCheapest$656Average$932FlexibilityNo cancel feeOn-time75%
DeltaCheapest$772Average$1,011FlexibilityNo cancel feeOn-timeN/A

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.
Site
©2025 Cheapflights