Which layover airport has the shortest travel time from Seattle to Bucharest?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 13h 15m.

What airlines fly to Bucharest?

Turkish Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Bucharest from Seattle according to our data. Turkish Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 5 different airlines that fly to Bucharest on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Seattle and Bucharest?

Istanbul (IST) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Bucharest?

Flights via Istanbul (IST) offer the lowest average round-trip price of $634.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Bucharest?

United Airlines, British Airways, and SWISS are the most popular carriers operating from Seattle/Tacoma Intl to Bucharest

Which layover airport has the shortest connection time from Seattle to Bucharest?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 41m.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bucharest?

Prices for flights from Seattle/Tacoma Intl Airport to Bucharest refresh daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bucharest?

As of February 2026, there are 5 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Bucharest.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bucharest?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bucharest.

What documentation or ID do you need to fly to Bucharest?

The necessary travel and health documents for your Bucharest trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$339 Cheap Flights from Seattle to Bucharest in 2026

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1:35 pm - 12:50 am

SEA

OTP

25h 15m

1 stop

8:15 am - 6:25 pm

OTP

SEA

20h 10m

1 stop

$590British Airways

dim., avr. 12 - jeu., avr. 23

7:50 pm - 10:55 pm

SEA

OTP

18h 05m

1 stop

8:15 am - 6:25 pm

OTP

SEA

20h 10m

1 stop

$591British Airways

mar., mars 24 - mer., avr. 1

6:40 pm - 12:45 pm

SEA

OTP

32h 05m

1 stop

7:05 am - 11:45 am

OTP

SEA

14h 40m

1 stop

$592Delta

lun., avr. 13 - ven., avr. 24

4:05 pm - 5:10 pm

SEA

OTP

16h 05m

1 stop

7:05 am - 4:30 pm

OTP

SEA

19h 25m

1 stop

$597Delta

mar., mars 24 - jeu., avr. 2

4:05 pm - 5:10 pm

SEA

OTP

16h 05m

1 stop

2:00 pm - 4:30 pm

OTP

SEA

36h 30m

1 stop

$598Delta

mar., mars 24 - lun., mars 30

7:15 am - 5:20 pm

SEA

OTP

24h 05m

2 stops

7:05 am - 11:45 am

OTP

SEA

14h 40m

1 stop

$600Delta

lun., avr. 13 - ven., avr. 24

11:25 am - 5:10 pm

SEA

OTP

20h 45m

2 stops

7:05 am - 4:30 pm

OTP

SEA

19h 25m

1 stop

$601Delta

mar., mars 24 - jeu., avr. 2

7:20 am - 5:10 pm

SEA

OTP

24h 50m

2 stops

2:00 pm - 4:30 pm

OTP

SEA

36h 30m

1 stop

$603Delta

mer., mars 25 - lun., mars 30

12:54 pm - 1:10 am

SEA

OTP

26h 16m

2 stops

6:05 am - 9:53 pm

OTP

SEA

49h 48m

2 stops

$606United Airlines

mer., avr. 8 - mar., avr. 28

5:00 am - 1:10 am

SEA

OTP

34h 10m

2 stops

6:15 am - 9:53 pm

OTP

SEA

25h 38m

2 stops

$608United Airlines

mar., avr. 14 - ven., avr. 24

Delta flights from Seattle to Bucharest

Our best Delta deals on Seattle to Bucharest flight tickets

Delta

Apr 13

SEA6:40 pmSeattle/Tacoma Intl

32h 05m

1 stop

OTP12:45 pmBucharest Otopeni Intl

Apr 24

OTP7:05 amBucharest Otopeni Intl

14h 40m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$592

Delta

Mar 24

SEA4:05 pmSeattle/Tacoma Intl

16h 05m

1 stop

OTP5:10 pmBucharest Otopeni Intl

Apr 2

OTP7:05 amBucharest Otopeni Intl

19h 25m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

$597

Delta

Mar 24

SEA4:05 pmSeattle/Tacoma Intl

16h 05m

1 stop

OTP5:10 pmBucharest Otopeni Intl

Mar 30

OTP2:00 pmBucharest Otopeni Intl

36h 30m

1 stop

SEA4:30 pmSeattle/Tacoma Intl

$598

British Airways flights from Seattle to Bucharest

Our best British Airways deals on Seattle to Bucharest flight tickets

British Airways

Mar 24

SEA2:25 pmSeattle/Tacoma Intl

15h 20m

1 stop

OTP2:45 pmBucharest Otopeni Intl

Mar 31

OTP6:10 pmBucharest Otopeni Intl

27h 25m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$591

British Airways

Apr 8

SEA1:35 pmSeattle/Tacoma Intl

24h 45m

1 stop

OTP12:20 amBucharest Otopeni Intl

Apr 28

OTP8:15 amBucharest Otopeni Intl

24h 23m

2 stops

SEA10:38 pmSeattle/Tacoma Intl

$606

British Airways

Mar 23

SEA1:37 pmSeattle/Tacoma Intl

24h 23m

2 stops

OTP11:00 pmBucharest Otopeni Intl

Mar 30

OTP3:40 pmBucharest Otopeni Intl

42h 44m

2 stops

SEA12:24 amSeattle/Tacoma Intl

$627

Fly from

Fly to

Route

Depart

Return

Price

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

dim. 4/12

1:35 pm-12:50 am

1 stop25h 15m

Bucharest Otopeni Intl

jeu. 4/23

8:15 am-6:25 pm

1 stop20h 10m

$590

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mar. 3/24

7:50 pm-10:55 pm

1 stop18h 05m

Bucharest Otopeni Intl

mer. 4/1

8:15 am-6:25 pm

1 stop20h 10m

$591

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

lun. 4/13

6:40 pm-12:45 pm

1 stop32h 05m

Bucharest Otopeni Intl

ven. 4/24

7:05 am-11:45 am

1 stop14h 40m

$592

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mar. 3/24

4:05 pm-5:10 pm

1 stop16h 05m

Bucharest Otopeni Intl

jeu. 4/2

7:05 am-4:30 pm

1 stop19h 25m

$597

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mar. 3/24

4:05 pm-5:10 pm

1 stop16h 05m

Bucharest Otopeni Intl

lun. 3/30

2:00 pm-4:30 pm

1 stop36h 30m

$598

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

lun. 4/13

7:15 am-5:20 pm

2 stops24h 05m

Bucharest Otopeni Intl

ven. 4/24

7:05 am-11:45 am

1 stop14h 40m

$600

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mar. 3/24

11:25 am-5:10 pm

2 stops20h 45m

Bucharest Otopeni Intl

jeu. 4/2

7:05 am-4:30 pm

1 stop19h 25m

$601

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mer. 3/25

7:20 am-5:10 pm

2 stops24h 50m

Bucharest Otopeni Intl

lun. 3/30

2:00 pm-4:30 pm

1 stop36h 30m

$603

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mer. 4/8

12:54 pm-1:10 am

2 stops26h 16m

Bucharest Otopeni Intl

mar. 4/28

6:05 am-9:53 pm

2 stops49h 48m

$606

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

mar. 4/14

5:00 am-1:10 am

2 stops34h 10m

Bucharest Otopeni Intl

ven. 4/24

6:15 am-9:53 pm

2 stops25h 38m

$608

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Bucharest

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Bucharest?

In general, January is the cheapest month to fly from Seattle to Bucharest. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $538. If you aren’t able to travel to Bucharest during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $605.

How far in advance should I book a flight to Bucharest?

You are more likely to see cheaper flights to Bucharest from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest for around $822 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest from Seattle for as low as $584 on momondo.

Can stopping save me money on Seattle to Bucharest flights?

You could potentially save up to 9% on your flight if you consider stops on a Seattle to Bucharest flight.

How have Seattle to Bucharest flight prices changed over time?

As of February 2026, prices for Seattle to Bucharest flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Bucharest

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Bucharest according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Bucharest (SEA to BUH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Bucharest

Fastest flight time	15h 05m
Direct flights	None

The fastest flight from Seattle to Bucharest takes 15h 05m

There are no direct flights from Seattle to Bucharest. There are no popular flight routes from Seattle to Bucharest.

Search flight deals

How far is Seattle/Tacoma Intl to Bucharest by plane?
Seattle/Tacoma Intl and Bucharest are 5790.4 mi apart from one another. Flights usually cover this in 15h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bucharest?
Prices for flights from Seattle/Tacoma Intl Airport to Bucharest refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bucharest?
As of February 2026, there are 5 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Bucharest.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bucharest?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bucharest.
What documentation or ID do you need to fly to Bucharest?
The necessary travel and health documents for your Bucharest trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Bucharest?
momondo data reveals that the most frequently booked airline on the route from Seattle to Bucharest is Turkish Airlines, representing 38% of all bookings. The subsequent popular airlines are Lufthansa at 24%, British Airways at 15%, and KLM at 10%.

Best airlines flying from Seattle to Bucharest

Compare and see reviews for airlines that fly from Seattle to Bucharest with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $539	Free Cancellation	Rating 6.7 7,772 reviews	Search British Airways flights
Lufthansa	PriceFrom $565	Free Cancellation	Rating 6.8 7,815 reviews	Search Lufthansa flights
KLM	PriceFrom $584	Free Cancellation	Rating 7.7 1,460 reviews	Search KLM flights
United Airlines	PriceFrom $585	Free Cancellation	Rating 7.4 9,349 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $587	Free Cancellation	Rating 7.3 4,240 reviews	Search Turkish Airlines flights

Otopeni

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Why should I use momondo to find a flight deal from Seattle to Bucharest?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Bucharest. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Bucharest with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bucharest from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Bucharest?

Once all potential Seattle to Bucharest flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Bucharest right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bucharest, momondo offers a useful price alert feature which will track prices for flights to Bucharest from Seattle and alert you when they change.

An easier way to manage your Bucharest trip

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Cheap flights from Seattle to Bucharest from $339

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bucharest departing on 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Seattle to Bucharest

What is the cheapest month to fly to Bucharest?

How far in advance should I book a flight to Bucharest?

Can stopping save me money on Seattle to Bucharest flights?

How have Seattle to Bucharest flight prices changed over time?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Bucharest?

What airlines fly to Bucharest?

Which airport is the most popular layover for flights between Seattle and Bucharest?

Which layover airport offers the lowest fares from Seattle to Bucharest?

Which layover airport has the shortest travel time from Seattle to Bucharest?

Which layover airport has the shortest connection time from Seattle to Bucharest?

When to book flights from Seattle to Bucharest

Cheap Seattle to Bucharest (SEA to BUH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Bucharest

Fastest flight time

Direct flights

Best airlines flying from Seattle to Bucharest

Compare and see reviews for airlines that fly from Seattle to Bucharest with momondo

Traveling to a place near Bucharest?

Why use momondo?

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Romania

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Airports listed have a maximum distance of 9.6 mi from Bucharest

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List of cabin classes available on flights landing in Bucharest. Availability may vary depending on flight origin and airline.

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