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$531+ Cheap flights from Seattle (SEA) to Bucharest (BUH)

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Bucharest are usually found in September 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 September 16, 2025.

Round-trip from

$531
(Gotogate)

Popular in

December

Cheapest in

September

Average price

$728
From Seattle/Tacoma Intl to Bucharest (BUH)
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Highest demand for flights based on searches. 21% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($99 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 September 16, 2025.

This Gotogate deal was found by Cheapflights users on 9/14. 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.
Sun 10/192:55 pmSEA - OTP
2 stops17h 40mMultiple Airlines
Tue 11/45:55 amOTP - SEA
1 stop16h 15mMultiple Airlines
Deal found 9/14$531
This British Airways deal was found by Cheapflights users on 9/13. 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.
Mon 10/277:50 pmSEA - OTP
1 stop18h 10mBritish Airways
Thu 11/64:35 pmOTP - SEA
1 stop28h 55mBritish Airways
Deal found 9/13$542
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/264:10 pmSEA - OTP
1 stop17h 25mLufthansa
Tue 11/45:55 amOTP - SEA
1 stop16h 15mLufthansa
Deal found 9/13$544
This Gotogate deal was found by Cheapflights users on 9/14. 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.
Sun 10/196:50 pmSEA - OTP
1 stop13h 45mLufthansa
Tue 11/45:55 amOTP - SEA
1 stop16h 15mLufthansa
Deal found 9/14$551
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 9/15$552
This British Airways deal was found by Cheapflights users on 9/15. 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.
Sun 10/191:30 pmSEA - OTP
1 stop14h 35mBritish Airways
Tue 11/48:00 amOTP - SEA
1 stop18h 55mBritish Airways
Deal found 9/15$555
This Lufthansa deal was found by Cheapflights users on 9/13. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:10 pmSEA - OTP
1 stop23h 55mLufthansa
Thu 11/65:50 amOTP - SEA
1 stop16h 20mLufthansa
Deal found 9/13$556
This FlightHub deal was found by Cheapflights users on 9/14. 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 stops37h 40mAir Canada
Thu 11/65:50 amOTP - SEA
2 stops26h 16mAir Canada
Deal found 9/14$560
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/289:25 amSEA - OTP
2 stops24h 00mUnited Airlines
Tue 11/45:55 amOTP - SEA
1 stop16h 15mUnited Airlines
Deal found 9/13$561

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 September 16, 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

Mon 10/27

7:50 pm-11:00 pm

1 stop18h 10m

Bucharest Otopeni Intl

Wed 11/5

3:50 pm-4:55 pm

1 stop35h 05m

$542

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

2:25 pm-2:45 pm

1 stop15h 20m

Bucharest Otopeni Intl

Thu 11/6

4:35 pm-4:55 pm

1 stop34h 20m

$542

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 10/27

7:50 pm-11:00 pm

1 stop18h 10m

Bucharest Otopeni Intl

Mon 11/3

4:00 pm-11:30 am

1 stop29h 30m

$542

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

2:25 pm-2:45 pm

1 stop15h 20m

Bucharest Otopeni Intl

Mon 11/3

4:00 pm-11:30 am

1 stop29h 30m

$542

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 10/29

4:10 pm-1:05 am

1 stop23h 55m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-12:10 pm

1 stop16h 20m

$556

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 10/19

6:10 am-2:05 pm

2 stops21h 55m

Bucharest Otopeni Intl

Tue 11/4

8:00 am-4:55 pm

1 stop18h 55m

$559

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

8:15 am-3:45 pm

2 stops22h 30m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-12:10 pm

1 stop16h 20m

$560

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 10/28

8:15 am-3:45 pm

2 stops22h 30m

Bucharest Otopeni Intl

Thu 11/6

5:50 am-10:06 pm

2 stops26h 16m

$560

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 10/27

9:25 am-6:35 pm

2 stops24h 10m

Bucharest Otopeni Intl

Tue 11/4

5:55 am-12:10 pm

1 stop16h 15m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 September 12, 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, November is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $604). Flying from Seattle to Bucharest in June is currently the most expensive (average of $1,132). 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 September 16, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 31% on flights from Seattle to Bucharest by exploring options for tickets in the evening.

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 Sunday evenings 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.

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 September 16, 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
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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!
KLM
7.8
Good
1,386 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
7.4
Good
1,468 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
3,968 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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!
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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 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 6 different airlines.

  • How long is the flight from Seattle to Bucharest?

    British Airways can get you from Seattle to Bucharest in just under 18h 10m. 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 $585. Other airlines that can offer you cheap pricing are Turkish Airlines, from $598, and United Airlines, from $624. Lufthansa is currently priced 37% 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, November is the cheapest month in which you can book a flight from Seattle to Bucharest (average of $604). Flying from Seattle to Bucharest in June is currently the most expensive (average of $1,132). 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

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Top 6 airlines flying from Seattle to Bucharest

Discover the top 6 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$585Average$1,003FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$598Average$872FlexibilityNo 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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