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$306+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUH
jul 24 — jul 311
fre 7/24
fre 7/31
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 juni 24, 2026.

This oojo deal was found by Cheapflights users on 6/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 11/162:00 pm
SEA
-
OTP
1 stop13h 55m
Lufthansa
tors 11/196:00 am
OTP
-
SEA
1 stop16h 00m
Lufthansa
Deal found 6/21$738
This Gotogate deal was found by Cheapflights users on 6/21. 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.
mån 11/167:45 am
SEA
-
OTP
2 stops24h 50m
Multiple Airlines
tors 11/196:00 am
OTP
-
SEA
1 stop16h 00m
Multiple Airlines
Deal found 6/21$744
This oojo deal was found by Cheapflights users on 6/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 10/136:50 pm
SEA
-
OTP
1 stop13h 45m
Lufthansa
tis 10/206:05 am
OTP
-
SEA
1 stop16h 15m
Lufthansa
Deal found 6/21$745
This Gotogate deal was found by Cheapflights users on 6/21. 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.
tis 10/136:50 pm
SEA
-
OTP
1 stop13h 45m
Multiple Airlines
tis 10/206:05 am
OTP
-
SEA
2 stops26h 37m
Multiple Airlines
Deal found 6/21$751
This Delta deal was found by Cheapflights users on 6/21. 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.
mån 11/166:00 am
SEA
-
OTP
2 stops22h 10m
Delta
tors 11/196:00 am
OTP
-
SEA
1 stop15h 47m
Delta
Deal found 6/21$754
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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.
tis 9/13:55 pm
SEA
-
OTP
2 stops21h 50m
Scandinavian Airlines
mån 10/54:50 pm
OTP
-
SEA
2 stops30h 55m
Scandinavian Airlines
Deal found 6/21$758
This Delta deal was found by Cheapflights users on 6/21. 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.
ons 12/97:20 am
SEA
-
OTP
2 stops20h 50m
Delta
tis 12/156:00 am
OTP
-
SEA
2 stops23h 05m
Delta
Deal found 6/21$764
This Air France deal was found by Cheapflights users on 6/21. 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.
mån 10/126:45 pm
SEA
-
OTP
1 stop17h 50m
Multiple Airlines
mån 10/196:10 pm
OTP
-
SEA
1 stop27h 42m
Multiple Airlines
Deal found 6/21$766
This Delta deal was found by Cheapflights users on 6/21. 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.
sön 10/116:45 pm
SEA
-
OTP
1 stop32h 00m
Delta
ons 10/212:00 pm
OTP
-
SEA
1 stop31h 52m
Delta
Deal found 6/21$768
This Air Canada deal was found by Cheapflights users on 6/21. 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.
mån 10/125:40 am
SEA
-
OTP
2 stops26h 55m
Air Canada
ons 10/216:05 am
OTP
-
SEA
2 stops22h 27m
Air Canada
Deal found 6/21$769

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 juni 24, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$738
(oojo)

One-way from

$306
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,079
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. 4% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($57 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 juni 24, 2026.
Use the filters below to find and compare flights from Seattle to Bucharest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mån 11/16

2:00 pm-11:55 pm

1 stop23h 55m

Bucharest Otopeni Intl

tors 11/19

6:00 am-12:00 pm

1 stop16h 00m

$763

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

ons 12/9

7:20 am-2:10 pm

2 stops20h 50m

Bucharest Otopeni Intl

tis 12/15

6:00 am-7:05 pm

2 stops23h 05m

$764

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

sön 10/11

6:45 pm-12:45 pm

1 stop32h 00m

Bucharest Otopeni Intl

fre 10/23

7:05 am-4:35 pm

1 stop19h 30m

$768

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

tis 10/13

6:05 am-12:45 pm

2 stops20h 40m

Bucharest Otopeni Intl

fre 10/23

7:05 am-4:35 pm

1 stop19h 30m

$771

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

sön 8/9

11:20 pm-12:00 pm

2 stops26h 40m

Bucharest Otopeni Intl

tis 8/25

6:15 am-4:59 pm

1 stop20h 44m

$810

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

fre 10/16

6:45 pm-12:45 pm

1 stop32h 00m

Bucharest Otopeni Intl

tors 10/22

7:05 am-11:52 am

1 stop14h 47m

$818

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

tors 10/1

7:15 pm-8:10 am

1 stop26h 55m

Bucharest Otopeni Intl

sön 10/11

9:30 am-5:20 pm

1 stop17h 50m

$827
Quickest round-trip

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mån 9/7

12:35 pm-2:35 pm

1 stop16h 00m

Bucharest Otopeni Intl

tors 10/1

9:30 am-5:20 pm

1 stop17h 50m

$842

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

tis 9/8

5:00 am-6:35 pm

2 stops27h 35m

Bucharest Otopeni Intl

ons 9/30

6:05 am-10:56 pm

2 stops26h 51m

$844

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

ons 8/12

10:45 am-1:10 am

2 stops28h 25m

Bucharest Otopeni Intl

lör 8/22

4:10 pm-6:32 pm

2 stops36h 22m

$865

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 June.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
GotogatePrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Bucharest flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $503). Flying from Seattle to Bucharest in June is currently the most expensive (average of $712). 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 44% 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 juni 24, 2026.
Peruse reviews from past customers who have flown with KLM,Turkish Airlines, andLufthansa 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.
KLM
7.8
Good
1,530 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,530 reviews
KLM
7.8
Good
1,530 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Turkish Airlines
7.4
Good
4,417 reviews
KLM
7.8
Good
1,530 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
8,092 reviews
KLM
7.8
Good
1,530 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,072 reviews
KLM
7.8
Good
1,530 reviews

Crew

8.4

Entertainment

7.2

Boarding

7.8

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 4 different airlines.

  • How long is the flight from Seattle to Bucharest?

    Delta can get you from Seattle to Bucharest in just under 20h 50m. 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 $548, and KLM, from $552. British Airways 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, August is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $503). Flying from Seattle to Bucharest in June is currently the most expensive (average of $712). 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 4 airlines flying from Seattle to Bucharest

Discover the top 4 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 juni 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$539Average$636FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$548Average$912FlexibilityNo cancel feeOn-time76%
KLMCheapest$552Average$926FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$587Average$782FlexibilityNo cancel feeOn-time77%

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