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Cheap flights from Seattle to Bucharest from $361

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 12/11. 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
6:50 pm - 3:10 pmSEA-OTP
34h 20m1 stop
British Airways Logo
8:05 am - 4:55 pmOTP-SEA
18h 50m1 stop
$522British Airways
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Thu, Jan 22 - Sat, Feb 7
Lufthansa Logo
3:10 pm - 6:35 pmSEA-OTP
17h 25m1 stop
Lufthansa Logo
6:05 am - 1:20 pmOTP-SEA
17h 15m1 stop
$528Lufthansa
Find Deal
Sun, Jan 25 - Sun, Feb 8
British Airways Logo
6:50 pm - 8:00 pmSEA-OTP
15h 10m1 stop
British Airways Logo
8:05 am - 4:55 pmOTP-SEA
18h 50m1 stop
$532British Airways
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Wed, Dec 3 - Wed, Dec 10
Delta Logo
7:10 am - 12:05 pmSEA-OTP
18h 55m2 stops
Delta Logo
1:55 pm - 11:40 amOTP-SEA
31h 45m1 stop
$538Delta
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Mon, Jan 26 - Wed, Feb 11
Delta Logo
2:05 pm - 10:50 pmSEA-OTP
22h 45m2 stops
Delta Logo
6:00 am - 7:00 pmOTP-SEA
23h 00m2 stops
$548Delta
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Tue, Dec 9 - Tue, Dec 16
United Airlines Logo
2:00 pm - 2:05 pmSEA-OTP
14h 05m1 stop
United Airlines Logo
5:55 am - 10:43 pmOTP-SEA
26h 48m3 stops
$555United Airlines
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Sat, Jan 24 - Fri, Feb 6
United Airlines Logo
1:40 pm - 11:55 pmSEA-OTP
24h 15m2 stops
United Airlines Logo
6:05 am - 11:15 pmOTP-SEA
27h 10m3 stops
$559United Airlines
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Wed, Dec 3 - Wed, Dec 10
KLM Logo
5:35 pm - 11:30 pmSEA-OTP
19h 55m1 stop
KLM Logo
6:05 pm - 11:35 amOTP-SEA
27h 30m1 stop
$589KLM
Find Deal
Wed, Apr 1 - Mon, Apr 13
Turkish Airlines Logo
8:00 pm - 2:10 pmSEA-OTP
33h 10m1 stop
Turkish Airlines Logo
3:30 pm - 6:05 pmOTP-SEA
35h 35m1 stop
$625Turkish Airlines
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Thu, Mar 12 - Sat, Mar 21
Turkish Airlines Logo
7:00 pm - 8:30 pmSEA-OTP
15h 30m1 stop
Turkish Airlines Logo
9:50 pm - 5:05 pmOTP-SEA
29h 15m1 stop
$880Turkish Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 11

Turkish Airlines flights from Seattle to Bucharest

Our best Turkish Airlines deals on Seattle to Bucharest flight tickets
Turkish Airlines
Mar 12
SEA8:00 pmSeattle/Tacoma Intl
33h 10m
1 stop
OTP2:10 pmBucharest Otopeni Intl
Mar 21
OTP3:30 pmBucharest Otopeni Intl
35h 35m
1 stop
SEA6:05 pmSeattle/Tacoma Intl
$625
Find similar
Turkish Airlines
Dec 22
SEA7:00 pmSeattle/Tacoma Intl
15h 30m
1 stop
OTP8:30 pmBucharest Otopeni Intl
Jan 11
OTP9:50 pmBucharest Otopeni Intl
29h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$880
Find similar
Turkish Airlines
Nov 9
SEA7:00 pmSeattle/Tacoma Intl
33h 10m
1 stop
OTP2:10 pmBucharest Otopeni Intl
Nov 11
OTP9:50 pmBucharest Otopeni Intl
29h 15m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$1,065
Find similar

United Airlines flights from Seattle to Bucharest

Our best United Airlines deals on Seattle to Bucharest flight tickets
United Airlines
Jan 24
SEA2:00 pmSeattle/Tacoma Intl
14h 05m
1 stop
OTP2:05 pmBucharest Otopeni Intl
Feb 6
OTP5:55 amBucharest Otopeni Intl
26h 48m
3 stops
SEA10:43 pmSeattle/Tacoma Intl
$555
Find similar
United Airlines
Dec 3
SEA1:40 pmSeattle/Tacoma Intl
24h 15m
2 stops
OTP11:55 pmBucharest Otopeni Intl
Dec 10
OTP6:05 amBucharest Otopeni Intl
27h 10m
3 stops
SEA11:15 pmSeattle/Tacoma Intl
$559
Find similar
United Airlines
Jan 23
SEA8:40 amSeattle/Tacoma Intl
19h 30m
2 stops
OTP2:10 pmBucharest Otopeni Intl
Feb 11
OTP6:05 amBucharest Otopeni Intl
22h 21m
2 stops
SEA6:26 pmSeattle/Tacoma Intl
$560
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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 November 5, 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

Thu 1/22

6:50 pm-3:10 pm

1 stop34h 20m

Bucharest Otopeni Intl

Sat 2/7

8:05 am-4:55 pm

1 stop18h 50m

$522

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 1/25

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Sun 2/8

6:05 am-1:20 pm

1 stop17h 15m

$528

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/3

6:50 pm-8:00 pm

1 stop15h 10m

Bucharest Otopeni Intl

Wed 12/10

8:05 am-4:55 pm

1 stop18h 50m

$532

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 1/26

7:10 am-12:05 pm

2 stops18h 55m

Bucharest Otopeni Intl

Wed 2/11

1:55 pm-11:40 am

1 stop31h 45m

$538

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 12/9

2:05 pm-10:50 pm

2 stops22h 45m

Bucharest Otopeni Intl

Tue 12/16

6:00 am-7:00 pm

2 stops23h 00m

$548

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sat 1/24

2:00 pm-2:05 pm

1 stop14h 05m

Bucharest Otopeni Intl

Fri 2/6

5:55 am-10:43 pm

3 stops26h 48m

$555

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/3

1:40 pm-11:55 pm

2 stops24h 15m

Bucharest Otopeni Intl

Wed 12/10

6:05 am-11:15 pm

3 stops27h 10m

$559

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 4/1

5:35 pm-11:30 pm

1 stop19h 55m

Bucharest Otopeni Intl

Mon 4/13

6:05 pm-11:35 am

1 stop27h 30m

$589

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 3/12

8:00 pm-2:10 pm

1 stop33h 10m

Bucharest Otopeni Intl

Sat 3/21

3:30 pm-6:05 pm

1 stop35h 35m

$625

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 12/22

7:00 pm-8:30 pm

1 stop15h 30m

Bucharest Otopeni Intl

Sun 1/11

9:50 pm-5:05 pm

1 stop29h 15m

$880

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 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 $627. If you aren’t able to travel to Bucharest during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $685.

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 $940 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 $618 on momondo.

Can stopping save me money on Seattle to Bucharest flights?

You could potentially save up to 17% 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 November 2025, prices for Seattle to Bucharest flights are approximately 2% 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

Direct flights

None
There are no direct flights from Seattle to Bucharest. There are no popular flight routes from Seattle to Bucharest.
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  • 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 13h 45m, 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
LufthansaPriceFrom $581Free CancellationRating
6.8
7,555 reviews
Search Lufthansa flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $596Free CancellationRating
7.3
4,034 reviews
Search Turkish Airlines flights
KLMPriceFrom $656Free CancellationRating
7.7
1,405 reviews
Search KLM flights
DeltaPriceFrom $772Free CancellationRating
7.9
8,005 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