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Cheap flights from Seattle to Bucharest from $472

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 12/16. 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.
Lufthansa Logo
3:10 pm - 6:35 pmSEA-OTP
17h 25m1 stop
Lufthansa Logo
5:50 am - 7:16 pmOTP-SEA
23h 26m2 stops
$476Lufthansa
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Fri, Nov 28 - Thu, Dec 11
Lufthansa Logo
3:10 pm - 6:35 pmSEA-OTP
17h 25m1 stop
Lufthansa Logo
5:50 am - 12:10 pmOTP-SEA
16h 20m1 stop
$491Lufthansa
Find Deal
Fri, Nov 28 - Thu, Dec 11
Multiple Airlines Logo
10:05 am - 1:05 amSEA-OTP
29h 00m2 stops
Multiple Airlines Logo
5:50 am - 9:31 amOTP-SEA
37h 41m2 stops
$494Multiple Airlines
Find Deal
Fri, Nov 28 - Thu, Dec 11
British Airways Logo
6:50 pm - 11:25 pmSEA-OTP
18h 35m1 stop
British Airways Logo
8:00 am - 4:55 pmOTP-SEA
18h 55m1 stop
$539British Airways
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Fri, Dec 5 - Fri, Dec 12
Delta Logo
5:25 am - 1:50 pmSEA-OTP
22h 25m2 stops
Delta Logo
6:00 am - 10:23 pmOTP-SEA
26h 23m2 stops
$540Delta
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Fri, Nov 28 - Thu, Dec 11
British Airways Logo
1:28 pm - 8:00 pmSEA-OTP
20h 32m2 stops
British Airways Logo
8:00 am - 4:55 pmOTP-SEA
18h 55m1 stop
$543British Airways
Find Deal
Wed, Dec 10 - Tue, Feb 17
United Airlines Logo
7:00 am - 2:00 pmSEA-OTP
21h 00m2 stops
United Airlines Logo
5:55 am - 9:12 pmOTP-SEA
25h 17m3 stops
$562United Airlines
Find Deal
Wed, Jan 14 - Sat, Jan 31
Turkish Airlines Logo
2:40 pm - 8:30 pmSEA-OTP
19h 50m2 stops
Turkish Airlines Logo
10:10 am - 6:52 pmOTP-SEA
42h 42m2 stops
$580Turkish Airlines
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Wed, Nov 5 - Wed, Nov 19
Turkish Airlines Logo
2:40 pm - 8:30 pmSEA-OTP
19h 50m2 stops
Turkish Airlines Logo
10:15 am - 5:05 pmOTP-SEA
16h 50m1 stop
$609Turkish Airlines
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Mon, Nov 3 - Mon, Nov 24
Delta Logo
12:45 pm - 10:50 pmSEA-OTP
24h 05m2 stops
Delta Logo
6:05 am - 7:25 pmOTP-SEA
23h 20m2 stops
$930Delta
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Mon, Dec 15 - Wed, Jan 7

SWISS flights from Seattle to Bucharest

Our best SWISS deals on Seattle to Bucharest flight tickets
SWISS
Dec 10
SEA1:05 pmSeattle/Tacoma Intl
25h 20m
2 stops
OTP12:25 amBucharest Otopeni Intl
Feb 17
OTP4:40 pmBucharest Otopeni Intl
40h 03m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
$534
Find similar
SWISS
Oct 28
SEA1:20 pmSeattle/Tacoma Intl
26h 10m
2 stops
OTP12:30 amBucharest Otopeni Intl
Nov 6
OTP6:30 amBucharest Otopeni Intl
25h 58m
2 stops
SEA10:28 pmSeattle/Tacoma Intl
$614
Find similar
SWISS
Nov 3
SEA2:40 pmSeattle/Tacoma Intl
39h 05m
2 stops
OTP3:45 pmBucharest Otopeni Intl
Dec 2
OTP4:40 pmBucharest Otopeni Intl
39h 48m
2 stops
SEA10:28 pmSeattle/Tacoma Intl
$634
Find similar

British Airways flights from Seattle to Bucharest

Our best British Airways deals on Seattle to Bucharest flight tickets
British Airways
Dec 5
SEA6:50 pmSeattle/Tacoma Intl
18h 35m
1 stop
OTP11:25 pmBucharest Otopeni Intl
Dec 12
OTP8:00 amBucharest Otopeni Intl
18h 55m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$539
Find similar
British Airways
Dec 10
SEA1:28 pmSeattle/Tacoma Intl
20h 32m
2 stops
OTP8:00 pmBucharest Otopeni Intl
Feb 17
OTP8:00 amBucharest Otopeni Intl
18h 55m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$543
Find similar
British Airways
Nov 3
SEA6:50 pmSeattle/Tacoma Intl
18h 10m
1 stop
OTP11:00 pmBucharest Otopeni Intl
Nov 24
OTP4:00 pmBucharest Otopeni Intl
34h 55m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$639
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 October 22, 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 11/28

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Thu 12/11

5:50 am-7:16 pm

2 stops23h 26m

$476

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 11/28

3:10 pm-6:35 pm

1 stop17h 25m

Bucharest Otopeni Intl

Thu 12/11

5:50 am-12:10 pm

1 stop16h 20m

$491

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 11/28

10:05 am-1:05 am

2 stops29h 00m

Bucharest Otopeni Intl

Thu 12/11

5:50 am-9:31 am

2 stops37h 41m

$494

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 12/5

6:50 pm-11:25 pm

1 stop18h 35m

Bucharest Otopeni Intl

Fri 12/12

8:00 am-4:55 pm

1 stop18h 55m

$539

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 11/28

5:25 am-1:50 pm

2 stops22h 25m

Bucharest Otopeni Intl

Thu 12/11

6:00 am-10:23 pm

2 stops26h 23m

$540

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 12/10

1:28 pm-8:00 pm

2 stops20h 32m

Bucharest Otopeni Intl

Tue 2/17

8:00 am-4:55 pm

1 stop18h 55m

$543

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 1/14

7:00 am-2:00 pm

2 stops21h 00m

Bucharest Otopeni Intl

Sat 1/31

5:55 am-9:12 pm

3 stops25h 17m

$562

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 11/5

2:40 pm-8:30 pm

2 stops19h 50m

Bucharest Otopeni Intl

Wed 11/19

10:10 am-6:52 pm

2 stops42h 42m

$580

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 11/3

2:40 pm-8:30 pm

2 stops19h 50m

Bucharest Otopeni Intl

Mon 11/24

10:15 am-5:05 pm

1 stop16h 50m

$609

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 12/15

12:45 pm-10:50 pm

2 stops24h 05m

Bucharest Otopeni Intl

Wed 1/7

6:05 am-7:25 pm

2 stops23h 20m

$930

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, February 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 $685. If you aren’t able to travel to Bucharest during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $697.

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 $939 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 21% 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 October 2025, prices for Seattle to Bucharest flights are approximately 26% 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 14h 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?

  • 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
United AirlinesPriceFrom $585Free CancellationRating
7.4
8,988 reviews
Search United Airlines flights
LufthansaPriceFrom $585Free CancellationRating
6.8
7,507 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $596Free CancellationRating
7.3
4,022 reviews
Search Turkish Airlines flights
KLMPriceFrom $656Free CancellationRating
7.7
1,404 reviews
Search KLM flights
DeltaPriceFrom $684Free CancellationRating
7.9
7,979 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