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Cheap flights from Seattle to Bucharest from $317

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 7/21. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 pm - 12:35 am
SEA
-
OTP
19h 35m
2 stops
Multiple Airlines Logo
6:45 pm - 11:45 am
OTP
-
SEA
51h 00m
2 stops
$703Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
2:10 pm - 12:35 am
SEA
-
OTP
24h 25m
2 stops
Multiple Airlines Logo
6:45 pm - 4:59 pm
OTP
-
SEA
32h 14m
2 stops
$720Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
10:45 am - 12:35 am
SEA
-
OTP
27h 50m
3 stops
Multiple Airlines Logo
4:50 pm - 4:59 pm
OTP
-
SEA
34h 09m
3 stops
$724Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
8:00 am - 3:05 am
SEA
-
OTP
33h 05m
3 stops
Multiple Airlines Logo
5:35 am - 9:04 pm
OTP
-
SEA
25h 29m
3 stops
$752Multiple Airlines
Thu, Sep 3 - Fri, Sep 11
Multiple Airlines Logo
2:10 pm - 12:35 am
SEA
-
OTP
24h 25m
2 stops
Multiple Airlines Logo
6:30 pm - 4:59 pm
OTP
-
SEA
32h 29m
3 stops
$754Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
OTP
21h 50m
2 stops
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
$757Scandinavian Airlines
Fri, Aug 14 - Thu, Aug 20
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
OTP
21h 50m
2 stops
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
$763Scandinavian Airlines
Tue, Sep 1 - Mon, Oct 5
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
OTP
21h 50m
2 stops
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
$775Scandinavian Airlines
Sun, Sep 6 - Sat, Sep 26
Turkish Airlines Logo
7:15 pm - 3:40 pm
SEA
-
OTP
34h 25m
2 stops
Turkish Airlines Logo
3:55 pm - 5:20 pm
OTP
-
SEA
35h 25m
1 stop
$785Turkish Airlines
Sun, Sep 6 - Sat, Sep 26
Turkish Airlines Logo
12:35 pm - 2:35 pm
SEA
-
OTP
16h 00m
1 stop
Turkish Airlines Logo
9:30 am - 5:20 pm
OTP
-
SEA
17h 50m
1 stop
$791Turkish Airlines
Mon, Aug 31 - Mon, Oct 5

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Turkish Airlines flights from Seattle to Bucharest

Our best Turkish Airlines deals on Seattle to Bucharest flight tickets
Turkish Airlines
Sep 6
SEA7:15 pmSeattle/Tacoma Intl
34h 25m
2 stops
OTP3:40 pmBucharest Otopeni Intl
Sep 26
OTP3:55 pmBucharest Otopeni Intl
35h 25m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$785
Turkish Airlines
Aug 31
SEA12:35 pmSeattle/Tacoma Intl
16h 00m
1 stop
OTP2:35 pmBucharest Otopeni Intl
Oct 5
OTP9:30 amBucharest Otopeni Intl
17h 50m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$791
Turkish Airlines
Aug 30
SEA7:15 pmSeattle/Tacoma Intl
15h 00m
1 stop
OTP8:15 pmBucharest Otopeni Intl
Oct 5
OTP9:30 amBucharest Otopeni Intl
17h 50m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$798

Delta flights from Seattle to Bucharest

Our best Delta deals on Seattle to Bucharest flight tickets
Delta
Sep 5
SEA10:40 pmSeattle/Tacoma Intl
28h 05m
2 stops
OTP12:45 pmBucharest Otopeni Intl
Oct 7
OTP2:00 pmBucharest Otopeni Intl
31h 52m
1 stop
SEA11:52 amSeattle/Tacoma Intl
$830
Delta
Aug 31
SEA11:59 pmSeattle/Tacoma Intl
27h 01m
2 stops
OTP1:00 pmBucharest Otopeni Intl
Oct 2
OTP7:05 amBucharest Otopeni Intl
19h 30m
1 stop
SEA4:35 pmSeattle/Tacoma Intl
$834
Delta
Sep 1
SEA1:50 pmSeattle/Tacoma Intl
17h 50m
1 stop
OTP5:40 pmBucharest Otopeni Intl
Oct 2
OTP7:05 amBucharest Otopeni Intl
26h 15m
2 stops
SEA11:20 pmSeattle/Tacoma Intl
$840

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 June 29, 2026.
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

Cheapest round-trip

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 8/11

7:00 pm-12:35 am

2 stops19h 35m

Bucharest Otopeni Intl

Tue 8/18

6:45 pm-11:45 am

2 stops51h 00m

$703

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 8/11

2:10 pm-12:35 am

2 stops24h 25m

Bucharest Otopeni Intl

Tue 8/18

6:45 pm-4:59 pm

2 stops32h 14m

$720

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 8/11

10:45 am-12:35 am

3 stops27h 50m

Bucharest Otopeni Intl

Tue 8/18

4:50 pm-4:59 pm

3 stops34h 09m

$724

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Thu 9/3

8:00 am-3:05 am

3 stops33h 05m

Bucharest Otopeni Intl

Fri 9/11

5:35 am-9:04 pm

3 stops25h 29m

$752

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 8/11

2:10 pm-12:35 am

2 stops24h 25m

Bucharest Otopeni Intl

Tue 8/18

6:30 pm-4:59 pm

3 stops32h 29m

$754

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Fri 8/14

3:55 pm-11:45 pm

2 stops21h 50m

Bucharest Otopeni Intl

Thu 8/20

4:50 pm-1:45 pm

2 stops30h 55m

$757

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 9/1

3:55 pm-11:45 pm

2 stops21h 50m

Bucharest Otopeni Intl

Mon 10/5

4:50 pm-1:45 pm

2 stops30h 55m

$763

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 9/6

3:55 pm-11:45 pm

2 stops21h 50m

Bucharest Otopeni Intl

Sat 9/26

4:50 pm-1:45 pm

2 stops30h 55m

$775

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 9/6

7:15 pm-3:40 pm

2 stops34h 25m

Bucharest Otopeni Intl

Sat 9/26

3:55 pm-5:20 pm

1 stop35h 25m

$785
Quickest round-trip

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 8/31

12:35 pm-2:35 pm

1 stop16h 00m

Bucharest Otopeni Intl

Mon 10/5

9:30 am-5:20 pm

1 stop17h 50m

$791

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, August 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 $503. If you aren’t able to travel to Bucharest during the month of August, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $505.

How have Seattle to Bucharest flight prices changed over time?

As of June 2026, prices for Seattle to Bucharest flights are approximately 50% 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

18h 00m

Direct flights

None
The fastest flight from Seattle to Bucharest takes 18h 00m
There are no direct flights from Seattle to Bucharest. There are no popular flight routes from Seattle to Bucharest.
Search flight deals

Frequently asked questions about flying from Seattle to Bucharest

  • 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 18h 00m, 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 $539Free CancellationRating
6.7
8,085 reviews
Search British Airways flights
LufthansaPriceFrom $548Free CancellationRating
6.8
8,109 reviews
Search Lufthansa flights
KLMPriceFrom $552Free CancellationRating
7.8
1,531 reviews
Search KLM flights
Turkish AirlinesPriceFrom $587Free CancellationRating
7.4
4,428 reviews
Search Turkish Airlines 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