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$290+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUH
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheap 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 February 7, 2026.

This Mytrip deal was found by Cheapflights users on 2/5. 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 10/75:40 am
SEA
-
OTP
2 stops26h 55m
Multiple Airlines
Wed 11/46:05 am
OTP
-
SEA
2 stops25h 51m
Multiple Airlines
Deal found 2/5$499
This Mytrip deal was found by Cheapflights users on 2/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:40 am
SEA
-
OTP
2 stops26h 55m
Multiple Airlines
Fri 5/16:05 am
OTP
-
SEA
1 stop16h 15m
Multiple Airlines
Deal found 2/6$516
This Mytrip deal was found by Cheapflights users on 2/5. 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 10/76:50 pm
SEA
-
OTP
1 stop13h 45m
Lufthansa
Wed 11/46:05 am
OTP
-
SEA
1 stop16h 05m
Lufthansa
Deal found 2/5$526
This FlightHub deal was found by Cheapflights users on 2/4. 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 10/136:50 pm
SEA
-
OTP
1 stop20h 20m
Lufthansa
Fri 11/66:05 am
OTP
-
SEA
1 stop16h 05m
Lufthansa
Deal found 2/4$532
This FlightHub deal was found by Cheapflights users on 2/5. 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 10/133:00 pm
SEA
-
OTP
2 stops17h 35m
Multiple Airlines
Fri 11/66:05 am
OTP
-
SEA
1 stop16h 05m
Multiple Airlines
Deal found 2/5$533
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:50 pm
SEA
-
OTP
1 stop18h 40m
British Airways
Thu 3/194:35 pm
OTP
-
SEA
1 stop28h 55m
British Airways
Deal found 2/4$535
This KAYAK deal was found by Cheapflights users on 2/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:50 pm
SEA
-
OTP
1 stop14h 40m
British Airways
Fri 3/138:20 pm
OTP
-
SEA
1 stop25h 10m
British Airways
Deal found 2/5$536
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Fri 3/63:10 pm
SEA
-
OTP
1 stop17h 25m
United Airlines
Tue 3/175:55 am
OTP
-
SEA
1 stop16h 15m
United Airlines
Deal found 2/5$537
This Mytrip deal was found by Cheapflights users on 2/5. 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.
Thu 3/52:00 pm
SEA
-
OTP
1 stop14h 05m
Lufthansa
Thu 3/195:50 am
OTP
-
SEA
1 stop16h 20m
Lufthansa
Deal found 2/5$538

Find 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 February 7, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$516
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$639
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
Highest demand for flights based on searches. 5% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 7, 2026.
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

Fri 3/6

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Thu 3/19

5:50 am-1:10 pm

1 stop16h 20m

$537

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 3/6

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Tue 3/17

5:55 am-1:10 pm

1 stop16h 15m

$537

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 3/7

8:00 am-6:35 pm

2 stops24h 35m

Bucharest Otopeni Intl

Sat 3/14

6:55 am-10:16 pm

2 stops24h 21m

$539

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 3/6

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Fri 3/13

5:55 am-10:16 pm

2 stops49h 21m

$546

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 3/5

7:10 am-5:10 pm

2 stops24h 00m

Bucharest Otopeni Intl

Fri 3/13

6:00 am-12:35 pm

1 stop15h 35m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 3/9

10:58 pm-1:00 pm

2 stops29h 02m

Bucharest Otopeni Intl

Mon 3/16

1:55 pm-12:35 pm

1 stop31h 40m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 3/5

7:10 am-5:10 pm

2 stops24h 00m

Bucharest Otopeni Intl

Tue 3/17

6:00 am-12:35 pm

1 stop15h 35m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 3/4

7:25 am-5:10 pm

2 stops23h 45m

Bucharest Otopeni Intl

Fri 3/13

6:00 am-12:35 pm

1 stop15h 35m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 3/6

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Mon 3/16

5:55 am-11:49 am

2 stops38h 54m

$548

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-2:20 pm

3 stops37h 45m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 19 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 February.
ProviderPrice AccuracyTrust Score*
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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 February 6, 2026.

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, January is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $539). Flying from Seattle to Bucharest in July is currently the most expensive (average of $667). 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 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.

Istanbul (IST) – chosen by Cheapflights users on 56% 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.

London (LHR) is the most affordable 1-stop option, with an average round-trip price of $503.

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 February 7, 2026.
Peruse reviews from past customers who have flown with Delta, KLM, and Turkish Airlines 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
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
8,172 reviews
Delta
7.9
Good
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
1,450 reviews
Delta
7.9
Good
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
4,207 reviews
Delta
7.9
Good
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
7,773 reviews
Delta
7.9
Good
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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.
British Airways
6.7
Okay
7,720 reviews
Delta
7.9
Good
8,172 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

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 7 different airlines.

  • How long is the flight from Seattle to Bucharest?

    United Airlines can get you from Seattle to Bucharest in just under 17h 25m. Your travel time can differ by up to . There are 5791 mi between Seattle and Bucharest.

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

    Cheapflights users have booked flights from Seattle to Bucharest round-trip from $539. Other airlines that can offer you cheap pricing are Lufthansa, from $565, and KLM, from $584. British Airways is currently priced 35% 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, January is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $539). Flying from Seattle to Bucharest in July is currently the most expensive (average of $667). 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

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Top 7 airlines flying from Seattle to Bucharest

Discover the top 7 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 February 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$539Average$634FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$565Average$913FlexibilityNo cancel feeOn-time76%
KLMCheapest$584Average$731FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$585Average$1,121FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$587Average$716FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$699Average$807FlexibilityNo cancel feeOn-time77%
DeltaCheapest$772Average$890FlexibilityNo cancel feeOn-timeN/A

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