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Cheap flights from Seattle to Bucharest from $264

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 10/12. 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
3:55 pm - 12:35 amSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
22h 40m1 stop Kastrup Copenhagen
Multiple Airlines Logo
5:35 am - 1:45 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
18h 10m2 stops Warsaw Frederic Chopin Kastrup Copenhagen
$643Multiple Airlines
Sun, Sep 20 - Tue, Oct 6
Turkish Airlines Logo
7:15 pm - 8:15 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
15h 00m1 stop Istanbul
Turkish Airlines Logo
9:30 am - 5:20 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
17h 50m1 stop Istanbul
$720Turkish Airlines
Tue, Sep 29 - Tue, Oct 13
Turkish Airlines Logo
7:15 pm - 8:15 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
15h 00m1 stop Istanbul
Turkish Airlines Logo
9:45 pm - 6:10 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
29h 25m1 stop Istanbul
$720Turkish Airlines
Tue, Oct 6 - Fri, Oct 30
Lufthansa Logo
2:50 pm - 6:30 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
17h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 1:00 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
17h 00m1 stop Munich Franz Josef Strauss
$731Lufthansa
Wed, Nov 18 - Wed, Feb 10
Multiple Airlines Logo
1:50 pm - 1:55 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
14h 05m1 stop Frankfurt am Main
Multiple Airlines Logo
6:00 am - 2:37 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
18h 37m2 stops Frankfurt am Main Vancouver Intl
$732Multiple Airlines
Wed, Nov 18 - Wed, Feb 10
British Airways Logo
6:45 pm - 12:05 amSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
19h 20m1 stop London Heathrow
British Airways Logo
8:25 am - 4:50 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
18h 25m1 stop London Heathrow
$805British Airways
Sat, Dec 12 - Fri, Dec 18
Lufthansa Logo
6:50 pm - 6:35 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
13h 45m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:20 pm - 4:59 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
31h 39m1 stop Munich Franz Josef Strauss
$815Lufthansa
Sun, Sep 13 - Mon, Sep 28
British Airways Logo
1:30 pm - 12:20 amSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
24h 50m1 stop London Heathrow
British Airways Logo
4:00 pm - 4:50 pmOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
34h 50m1 stop London Heathrow
$817British Airways
Wed, Oct 14 - Mon, Jan 11
Delta Logo
6:45 pm - 12:45 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
32h 00m1 stop Paris Charles de Gaulle
Delta Logo
7:05 am - 11:52 amOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
$845Delta
Wed, Sep 30 - Tue, Oct 6
Delta Logo
6:45 pm - 12:45 pmSEA  Seattle/Tacoma Intl-OTP Bucharest Otopeni Intl
32h 00m1 stop Paris Charles de Gaulle
Delta Logo
7:05 am - 11:52 amOTP  Bucharest Otopeni Intl-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
$845Delta
Wed, Sep 30 - Wed, Oct 7

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Lufthansa flights from Seattle to Bucharest Otopeni Intl Airport

Our best Lufthansa deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
Lufthansa
Nov 18
SEA2:50 pmSeattle/Tacoma Intl
17h 40m
1 stop
OTP6:30 pmBucharest Otopeni Intl
Feb 10
OTP6:00 amBucharest Otopeni Intl
17h 00m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$731
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
13h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Sep 29
OTP6:05 amBucharest Otopeni Intl
18h 12m
2 stops
SEA2:17 pmSeattle/Tacoma Intl
$816
Lufthansa
Sep 16
SEA6:50 pmSeattle/Tacoma Intl
13h 45m
1 stop
OTP6:35 pmBucharest Otopeni Intl
Sep 30
OTP6:05 amBucharest Otopeni Intl
22h 27m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$818

British Airways flights from Seattle to Bucharest Otopeni Intl Airport

Our best British Airways deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
British Airways
Dec 12
SEA6:45 pmSeattle/Tacoma Intl
19h 20m
1 stop
OTP12:05 amBucharest Otopeni Intl
Dec 18
OTP8:25 amBucharest Otopeni Intl
18h 25m
1 stop
SEA4:50 pmSeattle/Tacoma Intl
$805
British Airways
Aug 21
SEA8:20 pmSeattle/Tacoma Intl
31h 40m
1 stop
OTP2:00 pmBucharest Otopeni Intl
Aug 29
OTP8:15 amBucharest Otopeni Intl
25h 58m
2 stops
SEA12:13 amSeattle/Tacoma Intl
$1,274
British Airways
Aug 21
SEA8:20 pmSeattle/Tacoma Intl
31h 40m
1 stop
OTP2:00 pmBucharest Otopeni Intl
Aug 29
OTP8:00 pmBucharest Otopeni Intl
25h 35m
1 stop
SEA11:35 amSeattle/Tacoma Intl
$1,318

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Bucharest Otopeni Intl Airport 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 August 16, 2026.
Use the filters below to find and compare flights from Seattle to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-12:35 am

1 stop22h 40m

Bucharest Otopeni Intl

Tue 10/6

5:35 am-1:45 pm

2 stops18h 10m

$643

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Tue 9/29

7:15 pm-8:15 pm

1 stop15h 00m

Bucharest Otopeni Intl

Tue 10/13

9:30 am-5:20 pm

1 stop17h 50m

$720

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Tue 10/6

7:15 pm-8:15 pm

1 stop15h 00m

Bucharest Otopeni Intl

Fri 10/30

9:45 pm-6:10 pm

1 stop29h 25m

$720

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Wed 11/18

2:50 pm-6:30 pm

1 stop17h 40m

Bucharest Otopeni Intl

Wed 2/10

6:00 am-1:00 pm

1 stop17h 00m

$731
Quickest round-trip

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Wed 11/18

1:50 pm-1:55 pm

1 stop14h 05m

Bucharest Otopeni Intl

Wed 2/10

6:00 am-2:37 pm

2 stops18h 37m

$732

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Sat 12/12

6:45 pm-12:05 am

1 stop19h 20m

Bucharest Otopeni Intl

Fri 12/18

8:25 am-4:50 pm

1 stop18h 25m

$805

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Sun 9/13

6:50 pm-6:35 pm

1 stop13h 45m

Bucharest Otopeni Intl

Mon 9/28

7:20 pm-4:59 pm

1 stop31h 39m

$815

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Wed 10/14

1:30 pm-12:20 am

1 stop24h 50m

Bucharest Otopeni Intl

Mon 1/11

4:00 pm-4:50 pm

1 stop34h 50m

$817

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Wed 9/30

6:45 pm-12:45 pm

1 stop32h 00m

Bucharest Otopeni Intl

Tue 10/6

7:05 am-11:52 am

1 stop14h 47m

$845

SeattleBucharest

SEA Seattle/Tacoma Intl - OTP Bucharest Otopeni Intl

SEAOTP

Seattle/Tacoma Intl

Wed 9/30

6:45 pm-12:45 pm

1 stop32h 00m

Bucharest Otopeni Intl

Wed 10/7

7:05 am-11:52 am

1 stop14h 47m

$845

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to Bucharest Otopeni Intl Airport

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 Otopeni Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $830 to $967.
The lowest price recently found on this route was $643.

What is the cheapest month to fly to Bucharest Otopeni Intl Airport?

If you aren’t able to travel during the month of January, then book flights to Bucharest Otopeni Intl Airport from Seattle during October instead. Flights to Bucharest Otopeni Intl Airport in October, while not as cheap as those in January, still average around $642.

Can stopping save me money on Seattle to Bucharest Otopeni Intl Airport flights?

You could potentially save up to 7% on your flight if you consider stops on a Seattle to Bucharest Otopeni Intl Airport flight.

How have Seattle to Bucharest Otopeni Intl Airport flight prices changed over time?

When to book flights from Seattle to Bucharest Otopeni Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Bucharest Otopeni Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Bucharest Otopeni Intl Airport (SEA to OTP) flight deals and tips

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

Fastest flight time

15h 00m

Direct flights

None
The fastest flight from Seattle to Bucharest Otopeni Intl Airport takes 15h 00m
There are no direct flights from Seattle to Bucharest Otopeni Intl Airport. There are no popular flight routes from Seattle to Bucharest Otopeni Intl Airport.
Search flight deals

Frequently asked questions about flying from Seattle to Bucharest Otopeni Intl Airport

  • How far is Seattle/Tacoma Intl to Bucharest Otopeni Intl by plane?

    There are 5781.4 mi between Seattle/Tacoma Intl and Bucharest Otopeni Intl. A reasonable flight in good conditions will take 15h 00m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Bucharest Otopeni Intl Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Bucharest Otopeni Intl Airport.

  • What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

    The travel and health documents you'll need for your trip to Bucharest Otopeni Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bucharest Otopeni Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Bucharest Otopeni Intl Airport?

Best airlines flying from Seattle to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Seattle to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $539Free CancellationRating
6.7
8,167 reviews
Search British Airways flights
LufthansaPriceFrom $548Free CancellationRating
6.8
8,195 reviews
Search Lufthansa flights
KLMPriceFrom $584Free CancellationRating
7.8
1,559 reviews
Search KLM flights
Turkish AirlinesPriceFrom $616Free CancellationRating
7.4
4,474 reviews
Search Turkish Airlines flights
DeltaPriceFrom $826Free CancellationRating
7.8
8,502 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?

It is quick and easy to find Seattle to Bucharest flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bucharest that suits you.

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

All flight searches from Seattle to Bucharest on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Bucharest by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Seattle to Bucharest now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bucharest and let you know when they change.

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