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Cheap flights from Seattle to Bucharest from $489

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 12/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
1:35 pm - 3:10 pm
SEA
-
OTP
15h 35m1 stop
British Airways Logo
8:05 am - 4:55 pm
OTP
-
SEA
18h 50m1 stop
$513British Airways
Fri, Jan 16 - Sat, Jan 31
Multiple Airlines Logo
3:10 pm - 1:05 am
SEA
-
OTP
23h 55m1 stop
Multiple Airlines Logo
5:55 am - 10:06 pm
OTP
-
SEA
26h 11m2 stops
$519Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
8:10 am - 3:50 pm
SEA
-
OTP
21h 40m2 stops
Multiple Airlines Logo
5:55 am - 7:16 pm
OTP
-
SEA
23h 21m2 stops
$531Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
2:10 pm - 8:10 pm
SEA
-
OTP
20h 00m1 stop
Multiple Airlines Logo
1:55 pm - 11:50 am
OTP
-
SEA
31h 55m1 stop
$534Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Lufthansa Logo
3:10 pm - 1:05 am
SEA
-
OTP
23h 55m1 stop
Lufthansa Logo
5:55 am - 6:14 pm
OTP
-
SEA
22h 19m2 stops
$536Lufthansa
Fri, Jan 16 - Sat, Jan 31
British Airways Logo
6:50 pm - 11:30 pm
SEA
-
OTP
18h 40m1 stop
British Airways Logo
7:35 am - 4:55 pm
OTP
-
SEA
19h 20m1 stop
$538British Airways
Wed, Jan 14 - Sun, Jan 18
Lufthansa Logo
7:00 am - 11:50 pm
SEA
-
OTP
30h 50m2 stops
Lufthansa Logo
5:55 am - 6:14 pm
OTP
-
SEA
22h 19m2 stops
$547Lufthansa
Fri, Jan 16 - Sat, Jan 31
United Airlines Logo
6:03 am - 2:00 pm
SEA
-
OTP
21h 57m2 stops
United Airlines Logo
5:55 am - 4:01 pm
OTP
-
SEA
20h 06m2 stops
$562United Airlines
Wed, Jan 14 - Sun, Jan 18
United Airlines Logo
12:57 pm - 2:05 pm
SEA
-
OTP
39h 08m3 stops
United Airlines Logo
5:55 am - 6:14 pm
OTP
-
SEA
22h 19m2 stops
$573United Airlines
Fri, Jan 16 - Sat, Jan 31
United Airlines Logo
7:00 am - 2:00 pm
SEA
-
OTP
21h 00m2 stops
United Airlines Logo
2:50 pm - 10:43 pm
OTP
-
SEA
41h 53m2 stops
$582United Airlines
Wed, Jan 14 - Sun, Jan 18

United Airlines flights from Seattle to Bucharest

Our best United Airlines deals on Seattle to Bucharest flight tickets
United Airlines
Jan 14
SEA6:03 amSeattle/Tacoma Intl
21h 57m
2 stops
OTP2:00 pmBucharest Otopeni Intl
Jan 18
OTP5:55 amBucharest Otopeni Intl
20h 06m
2 stops
SEA4:01 pmSeattle/Tacoma Intl
$562
Find similar
United Airlines
Jan 16
SEA12:57 pmSeattle/Tacoma Intl
39h 08m
3 stops
OTP2:05 pmBucharest Otopeni Intl
Jan 31
OTP5:55 amBucharest Otopeni Intl
22h 19m
2 stops
SEA6:14 pmSeattle/Tacoma Intl
$573
Find similar
United Airlines
Jan 14
SEA7:00 amSeattle/Tacoma Intl
21h 00m
2 stops
OTP2:00 pmBucharest Otopeni Intl
Jan 18
OTP2:50 pmBucharest Otopeni Intl
41h 53m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
$582
Find similar

British Airways flights from Seattle to Bucharest

Our best British Airways deals on Seattle to Bucharest flight tickets
British Airways
Jan 16
SEA1:35 pmSeattle/Tacoma Intl
15h 35m
1 stop
OTP3:10 pmBucharest Otopeni Intl
Jan 31
OTP8:05 amBucharest Otopeni Intl
18h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$513
Find similar
British Airways
Jan 14
SEA6:50 pmSeattle/Tacoma Intl
18h 40m
1 stop
OTP11:30 pmBucharest Otopeni Intl
Jan 18
OTP7:35 amBucharest Otopeni Intl
19h 20m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$538
Find similar
British Airways
Jan 14
SEA5:45 pmSeattle/Tacoma Intl
19h 45m
2 stops
OTP11:30 pmBucharest Otopeni Intl
Jan 18
OTP7:35 amBucharest Otopeni Intl
19h 20m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$738
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 10, 2025.
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

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/16

1:35 pm-3:10 pm

1 stop15h 35m

Bucharest Otopeni Intl

Sat 1/31

8:05 am-4:55 pm

1 stop18h 50m

$513

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/23

3:10 pm-1:05 am

1 stop23h 55m

Bucharest Otopeni Intl

Fri 1/30

5:55 am-10:06 pm

2 stops26h 11m

$519

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/23

8:10 am-3:50 pm

2 stops21h 40m

Bucharest Otopeni Intl

Fri 1/30

5:55 am-7:16 pm

2 stops23h 21m

$531

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/23

2:10 pm-8:10 pm

1 stop20h 00m

Bucharest Otopeni Intl

Fri 1/30

1:55 pm-11:50 am

1 stop31h 55m

$534

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/16

3:10 pm-1:05 am

1 stop23h 55m

Bucharest Otopeni Intl

Sat 1/31

5:55 am-6:14 pm

2 stops22h 19m

$536

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 1/14

6:50 pm-11:30 pm

1 stop18h 40m

Bucharest Otopeni Intl

Sun 1/18

7:35 am-4:55 pm

1 stop19h 20m

$538

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/16

7:00 am-11:50 pm

2 stops30h 50m

Bucharest Otopeni Intl

Sat 1/31

5:55 am-6:14 pm

2 stops22h 19m

$547

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 1/14

6:03 am-2:00 pm

2 stops21h 57m

Bucharest Otopeni Intl

Sun 1/18

5:55 am-4:01 pm

2 stops20h 06m

$562

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 1/16

12:57 pm-2:05 pm

3 stops39h 08m

Bucharest Otopeni Intl

Sat 1/31

5:55 am-6:14 pm

2 stops22h 19m

$573

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 1/14

7:00 am-2:00 pm

2 stops21h 00m

Bucharest Otopeni Intl

Sun 1/18

2:50 pm-10:43 pm

2 stops41h 53m

$582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bucharest from

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

What is the typical price of a round-trip flight between Seattle and Bucharest?

What is the cheapest month to fly to Bucharest?

In general, November 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 $605. If you aren’t able to travel to Bucharest during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $629.

What is the cheapest day to depart on your flight to Bucharest?

Our data shows that Tuesday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $963. The most expensive day to fly to Bucharest is Saturday, with ticket prices averaging around $1,512.

What is the cheapest time of day to depart on your flight to Bucharest?

According to our data, the cheapest time of day to fly to Bucharest is in the evening. momondo users have found flights departing from Seattle to Bucharest in the evening for as low as $792. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Bucharest is at noon when prices are around $1,144.

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 $950 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 $617 on momondo.

Can stopping save me money on Seattle to Bucharest flights?

You could potentially save up to 23% 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 December 2025, prices for Seattle to Bucharest flights are approximately 21% more expensive 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 15m

Direct flights

None
The fastest flight from Seattle to Bucharest takes 15h 15m
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 15m, 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?

  • 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?

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 AirwaysPriceFrom $553Free CancellationRating
6.7
7,573 reviews
Search British Airways flights
LufthansaPriceFrom $581Free CancellationRating
6.8
7,625 reviews
Search Lufthansa flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $591Free CancellationRating
7.3
4,088 reviews
Search Turkish Airlines flights
KLMPriceFrom $656Free CancellationRating
7.7
1,432 reviews
Search KLM flights
Air FrancePriceFrom $699Free CancellationRating
7.4
1,502 reviews
Search Air France flights
DeltaPriceFrom $772Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

Why use momondo?

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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Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Airports listed have a maximum distance of 9.6 mi from Bucharest
Bucharest Otopeni Intl Airport