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Cheap flights from Bucharest Otopeni Intl Airport to Seattle from $502

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bucharest Otopeni Intl Airport to Seattle departing on 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Bucharest Otopeni Intl Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:35 am - 8:40 pm
OTP
-
SEA
25h 05m
3 stops
Multiple Airlines Logo
7:00 pm - 3:20 pm
SEA
-
OTP
34h 20m
3 stops
$838Multiple Airlines
Thu, Aug 27 - Thu, Sep 10
Multiple Airlines Logo
10:30 am - 8:40 pm
OTP
-
SEA
20h 10m
2 stops
Multiple Airlines Logo
7:00 pm - 3:20 pm
SEA
-
OTP
34h 20m
3 stops
$844Multiple Airlines
Thu, Aug 27 - Thu, Sep 10
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
Scandinavian Airlines Logo
3:55 pm - 3:25 pm
SEA
-
OTP
37h 30m
2 stops
$857Scandinavian Airlines
Fri, Sep 25 - Sun, Sep 27
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
Scandinavian Airlines Logo
3:55 pm - 3:25 pm
SEA
-
OTP
37h 30m
2 stops
$859Scandinavian Airlines
Fri, Sep 25 - Sun, Sep 27
Qatar Airways Logo
5:10 pm - 12:45 pm
OTP
-
SEA
29h 35m
1 stop
Qatar Airways Logo
4:25 pm - 2:15 pm
SEA
-
OTP
35h 50m
1 stop
$871Qatar Airways
Thu, Aug 27 - Thu, Sep 10
Multiple Airlines Logo
10:30 am - 11:45 am
OTP
-
SEA
35h 15m
2 stops
Multiple Airlines Logo
3:40 pm - 3:10 am
SEA
-
OTP
25h 30m
2 stops
$896Multiple Airlines
Sun, Aug 23 - Sat, Sep 5
Multiple Airlines Logo
8:35 am - 4:00 pm
OTP
-
SEA
17h 25m
1 stop
Multiple Airlines Logo
11:25 pm - 10:35 pm
SEA
-
OTP
37h 10m
2 stops
$897Multiple Airlines
Thu, Aug 27 - Thu, Sep 10
Multiple Airlines Logo
8:35 am - 3:55 pm
OTP
-
SEA
17h 20m
1 stop
Multiple Airlines Logo
2:35 pm - 6:05 pm
SEA
-
OTP
17h 30m
2 stops
$912Multiple Airlines
Thu, Dec 24 - Sun, Jan 10
Multiple Airlines Logo
5:00 pm - 4:10 pm
OTP
-
SEA
33h 10m
1 stop
Multiple Airlines Logo
3:40 pm - 10:50 pm
SEA
-
OTP
21h 10m
2 stops
$921Multiple Airlines
Sun, Aug 23 - Sat, Sep 5
Multiple Airlines Logo
8:35 am - 3:55 pm
OTP
-
SEA
17h 20m
1 stop
Multiple Airlines Logo
6:50 pm - 11:45 pm
SEA
-
OTP
18h 55m
1 stop
$925Multiple Airlines
Thu, Dec 24 - Sun, Jan 10

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British Airways flights from Bucharest Otopeni Intl Airport to Seattle

Our best British Airways deals on Bucharest Otopeni Intl Airport to Seattle flight tickets
British Airways
Dec 24
OTP8:00 amBucharest Otopeni Intl
26h 35m
2 stops
SEA12:35 amSeattle/Tacoma Intl
Jan 10
SEA6:12 amSeattle/Tacoma Intl
22h 43m
2 stops
OTP2:55 pmBucharest Otopeni Intl
$995
British Airways
Sep 25
OTP8:15 amBucharest Otopeni Intl
20h 10m
1 stop
SEA6:25 pmSeattle/Tacoma Intl
Sep 27
SEA8:20 pmSeattle/Tacoma Intl
18h 30m
1 stop
OTP12:50 amBucharest Otopeni Intl
$1,069
British Airways
Jul 6
OTP8:15 amBucharest Otopeni Intl
23h 20m
2 stops
SEA9:35 pmSeattle/Tacoma Intl
Jul 20
SEA10:22 amSeattle/Tacoma Intl
20h 58m
2 stops
OTP5:20 pmBucharest Otopeni Intl
$1,474

United Airlines flights from Bucharest Otopeni Intl Airport to Seattle

Our best United Airlines deals on Bucharest Otopeni Intl Airport to Seattle flight tickets
United Airlines
Jul 23
OTP6:05 amBucharest Otopeni Intl
16h 15m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
Aug 23
SEA6:50 pmSeattle/Tacoma Intl
20h 20m
1 stop
OTP1:10 amBucharest Otopeni Intl
$1,010
United Airlines
Jul 23
OTP6:05 amBucharest Otopeni Intl
16h 15m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
Aug 19
SEA6:50 pmSeattle/Tacoma Intl
20h 20m
1 stop
OTP1:10 amBucharest Otopeni Intl
$1,011
United Airlines
Jul 23
OTP6:05 amBucharest Otopeni Intl
16h 15m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
Aug 20
SEA3:54 pmSeattle/Tacoma Intl
16h 41m
2 stops
OTP6:35 pmBucharest Otopeni Intl
$1,012

momondo Fare Finder

 
Customize your flight search to find flights from Bucharest Otopeni Intl Airport to Seattle 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 July 2, 2026.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 8/27

5:35 am-8:40 pm

3 stops25h 05m

Seattle/Tacoma Intl

Thu 9/10

7:00 pm-3:20 pm

3 stops34h 20m

$838

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 8/27

10:30 am-8:40 pm

2 stops20h 10m

Seattle/Tacoma Intl

Thu 9/10

7:00 pm-3:20 pm

3 stops34h 20m

$844

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 9/25

4:50 pm-1:45 pm

2 stops30h 55m

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-3:25 pm

2 stops37h 30m

$857

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 9/25

4:50 pm-1:45 pm

2 stops30h 55m

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-3:25 pm

2 stops37h 30m

$859

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 8/27

5:10 pm-12:45 pm

1 stop29h 35m

Seattle/Tacoma Intl

Thu 9/10

4:25 pm-2:15 pm

1 stop35h 50m

$871

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sun 8/23

10:30 am-11:45 am

2 stops35h 15m

Seattle/Tacoma Intl

Sat 9/5

3:40 pm-3:10 am

2 stops25h 30m

$896

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 8/27

8:35 am-4:00 pm

1 stop17h 25m

Seattle/Tacoma Intl

Thu 9/10

11:25 pm-10:35 pm

2 stops37h 10m

$897
Quickest round-trip

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 12/24

8:35 am-3:55 pm

1 stop17h 20m

Seattle/Tacoma Intl

Sun 1/10

2:35 pm-6:05 pm

2 stops17h 30m

$912

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sun 8/23

5:00 pm-4:10 pm

1 stop33h 10m

Seattle/Tacoma Intl

Sat 9/5

3:40 pm-10:50 pm

2 stops21h 10m

$921

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 12/24

8:35 am-3:55 pm

1 stop17h 20m

Seattle/Tacoma Intl

Sun 1/10

6:50 pm-11:45 pm

1 stop18h 55m

$925

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 Seattle from

How to get the cheapest flight ticket from Bucharest Otopeni Intl Airport to Seattle

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 Bucharest Otopeni Intl Airport and Seattle?

What is the cheapest month to fly to Seattle?

In general, December is the cheapest month to fly from Bucharest Otopeni Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $813. If you don’t want to visit Seattle in December, then you should wait until February to fly from Bucharest Otopeni Intl Airport, when ticket prices are also cheap, with an average price of $875.

When to book flights from Bucharest Otopeni Intl Airport to Seattle

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

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

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

Fastest flight time

17h 20m

Direct flights

None
The fastest flight from Bucharest Otopeni Intl Airport to Seattle takes 17h 20m
There are no direct flights from Bucharest Otopeni Intl Airport to Seattle. There are no popular flight routes from Bucharest Otopeni Intl Airport to Seattle.
Search flight deals

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

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

    The distance between Bucharest Otopeni Intl and Seattle/Tacoma Intl is about 5781.4 mi. A reasonable flight in good conditions will take 17h 20m.

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

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

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

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

    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 Bucharest Otopeni Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Bucharest Otopeni Intl Airport to Seattle

Compare and see reviews for airlines that fly from Bucharest Otopeni Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $790Free CancellationRating
7.4
4,435 reviews
Search Turkish Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Lakewood
Puyallup
Tukwila
Cle Elum
Federal Way
Fife
Marysville
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Bucharest to Seattle?

It is quick and easy to find Bucharest to Seattle 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 Seattle that suits you.

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

Yes. All flights to Seattle from Bucharest on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Bucharest.

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

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

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