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Cheap flights from Bucharest Otopeni Intl Airport to Seattle from $360

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 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Bucharest Otopeni Intl Airport to Seattle (OTP-SEA)

Cheap round-trip flights

Scandinavian Airlines Logo
9:25 pm - 2:00 pmOTP-SEA
26h 35m1 stop
Scandinavian Airlines Logo
4:20 pm - 8:35 pmSEA-OTP
18h 15m1 stop
$552Scandinavian Airlines
Find Deal
Sat, Oct 11 - Fri, Oct 24
Scandinavian Airlines Logo
9:25 pm - 2:00 pmOTP-SEA
26h 35m1 stop
Scandinavian Airlines Logo
4:20 pm - 9:10 pmSEA-OTP
18h 50m1 stop
$641Scandinavian Airlines
Find Deal
Sat, Sep 27 - Sun, Oct 12
Scandinavian Airlines Logo
9:25 pm - 2:00 pmOTP-SEA
26h 35m1 stop
Scandinavian Airlines Logo
1:40 pm - 8:35 pmSEA-OTP
20h 55m2 stops
$646Scandinavian Airlines
Find Deal
Sat, Oct 11 - Fri, Oct 24
Scandinavian Airlines Logo
9:25 pm - 2:00 pmOTP-SEA
26h 35m1 stop
Scandinavian Airlines Logo
7:25 am - 9:10 pmSEA-OTP
27h 45m2 stops
$735Scandinavian Airlines
Find Deal
Sat, Sep 27 - Sun, Oct 12
Logo
5:35 am - 5:50 pmOTP-SEA
22h 15m3 stops
Logo
3:35 pm - 12:45 amSEA-OTP
24h 10m2 stops
$751
Find Deal
Fri, Oct 24 - Fri, Oct 31
Logo
8:35 am - 3:40 pmOTP-SEA
17h 05m1 stop
Logo
5:40 pm - 11:20 pmSEA-OTP
19h 40m1 stop
$763
Find Deal
Sat, Nov 15 - Sat, Nov 29
British Airways Logo
8:25 am - 6:20 pmOTP-SEA
19h 55m1 stop
British Airways Logo
7:50 pm - 11:25 pmSEA-OTP
18h 35m1 stop
$808British Airways
Find Deal
Fri, Oct 24 - Fri, Oct 31
British Airways Logo
8:05 pm - 11:30 amOTP-SEA
25h 25m1 stop
British Airways Logo
8:20 pm - 11:50 pmSEA-OTP
17h 30m1 stop
$815British Airways
Find Deal
Sat, Oct 11 - Fri, Oct 24
American Airlines Logo
8:25 am - 9:49 amOTP-SEA
35h 24m2 stops
American Airlines Logo
2:52 pm - 11:50 pmSEA-OTP
22h 58m2 stops
$818American Airlines
Find Deal
Sat, Oct 11 - Fri, Oct 24
Turkish Airlines Logo
9:35 am - 5:15 pmOTP-SEA
17h 40m1 stop
Turkish Airlines Logo
7:10 pm - 8:25 pmSEA-OTP
15h 15m1 stop
$1,130Turkish Airlines
Find Deal
Sat, Sep 20 - Wed, Oct 8

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
Oct 24
OTP8:25 amBucharest Otopeni Intl
19h 55m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
Oct 31
SEA7:50 pmSeattle/Tacoma Intl
18h 35m
1 stop
OTP11:25 pmBucharest Otopeni Intl
$808
Find similar
British Airways
Oct 11
OTP8:05 pmBucharest Otopeni Intl
25h 25m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Oct 24
SEA8:20 pmSeattle/Tacoma Intl
17h 30m
1 stop
OTP11:50 pmBucharest Otopeni Intl
$815
Find similar
British Airways
Oct 24
OTP8:25 amBucharest Otopeni Intl
22h 21m
2 stops
SEA8:46 pmSeattle/Tacoma Intl
Oct 31
SEA2:35 pmSeattle/Tacoma Intl
23h 50m
1 stop
OTP11:25 pmBucharest Otopeni Intl
$820
Find similar

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
Sep 27
OTP6:00 amBucharest Otopeni Intl
26h 16m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
Oct 12
SEA10:50 amSeattle/Tacoma Intl
21h 45m
2 stops
OTP6:35 pmBucharest Otopeni Intl
$902
Find similar
United Airlines
Nov 15
OTP5:55 amBucharest Otopeni Intl
27h 20m
3 stops
SEA11:15 pmSeattle/Tacoma Intl
Nov 29
SEA8:00 amSeattle/Tacoma Intl
20h 05m
2 stops
OTP2:05 pmBucharest Otopeni Intl
$904
Find similar

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 September 9, 2025.
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

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/11

9:25 pm-2:00 pm

1 stop26h 35m

Seattle/Tacoma Intl

Fri 10/24

4:20 pm-8:35 pm

1 stop18h 15m

$552

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 9/27

9:25 pm-2:00 pm

1 stop26h 35m

Seattle/Tacoma Intl

Sun 10/12

4:20 pm-9:10 pm

1 stop18h 50m

$641

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/11

9:25 pm-2:00 pm

1 stop26h 35m

Seattle/Tacoma Intl

Fri 10/24

1:40 pm-8:35 pm

2 stops20h 55m

$646

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 9/27

9:25 pm-2:00 pm

1 stop26h 35m

Seattle/Tacoma Intl

Sun 10/12

7:25 am-9:10 pm

2 stops27h 45m

$735

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 10/24

5:35 am-5:50 pm

3 stops22h 15m

Seattle/Tacoma Intl

Fri 10/31

3:35 pm-12:45 am

2 stops24h 10m

$751

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 11/15

8:35 am-3:40 pm

1 stop17h 05m

Seattle/Tacoma Intl

Sat 11/29

5:40 pm-11:20 pm

1 stop19h 40m

$763

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 10/24

8:25 am-6:20 pm

1 stop19h 55m

Seattle/Tacoma Intl

Fri 10/31

7:50 pm-11:25 pm

1 stop18h 35m

$808

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/11

8:05 pm-11:30 am

1 stop25h 25m

Seattle/Tacoma Intl

Fri 10/24

8:20 pm-11:50 pm

1 stop17h 30m

$815

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/11

8:25 am-9:49 am

2 stops35h 24m

Seattle/Tacoma Intl

Fri 10/24

2:52 pm-11:50 pm

2 stops22h 58m

$818

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 9/20

9:35 am-5:15 pm

1 stop17h 40m

Seattle/Tacoma Intl

Wed 10/8

7:10 pm-8:25 pm

1 stop15h 15m

$1,130

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 cheapest month to fly to Seattle?

In general, February 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 $811. If you don’t want to visit Seattle in February, then you should wait until April to fly from Bucharest Otopeni Intl Airport, when ticket prices are also cheap, with an average price of $814.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Bucharest Otopeni Intl Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $918. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Bucharest Otopeni Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $992.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Bucharest Otopeni Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $842 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $940. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Bucharest Otopeni Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $936 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Bucharest Otopeni Intl Airport for as low as $797 on momondo.

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

Direct flights

None
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.
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  • 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 05m.

  • 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
7.3
3,968 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $808Free CancellationRating
6.8
7,410 reviews
Search Lufthansa flights

Traveling to a place near Seattle?

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