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Cheap flights from Seattle to Bucharest from $218

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 3/18. 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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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.
British Airways Logo
1:35 pm - 12:25 am
SEA
-
OTP
24h 50m1 stop
British Airways Logo
8:15 am - 6:30 pm
OTP
-
SEA
44h 15m2 stops
$493British Airways
Wed, May 13 - Thu, Jun 4
British Airways Logo
5:45 pm - 11:30 pm
SEA
-
OTP
19h 45m2 stops
British Airways Logo
8:25 pm - 4:55 pm
OTP
-
SEA
30h 30m1 stop
$495British Airways
Wed, Feb 4 - Mon, Feb 16
British Airways Logo
5:45 pm - 11:30 pm
SEA
-
OTP
19h 45m2 stops
British Airways Logo
4:00 pm - 12:24 am
OTP
-
SEA
42h 24m2 stops
$498British Airways
Wed, Feb 4 - Mon, Feb 16
British Airways Logo
5:45 pm - 11:30 pm
SEA
-
OTP
19h 45m2 stops
British Airways Logo
8:25 pm - 11:07 pm
OTP
-
SEA
36h 42m2 stops
$499British Airways
Wed, Feb 4 - Mon, Feb 16
Multiple Airlines Logo
6:40 pm - 11:25 pm
SEA
-
OTP
18h 45m1 stop
Multiple Airlines Logo
8:35 am - 4:30 pm
OTP
-
SEA
17h 55m1 stop
$500Multiple Airlines
Sun, Mar 29 - Thu, Apr 9
Lufthansa Logo
6:50 pm - 1:10 am
SEA
-
OTP
20h 20m1 stop
Lufthansa Logo
6:05 am - 12:20 pm
OTP
-
SEA
16h 15m1 stop
$501Lufthansa
Sun, Mar 29 - Thu, Apr 9
Delta Logo
2:10 pm - 10:50 pm
SEA
-
OTP
22h 40m1 stop
Delta Logo
6:00 am - 11:40 am
OTP
-
SEA
15h 40m1 stop
$502Delta
Sun, Jan 18 - Tue, Feb 3
Delta Logo
10:58 pm - 12:05 pm
SEA
-
OTP
28h 07m2 stops
Delta Logo
2:00 pm - 11:45 am
OTP
-
SEA
31h 45m1 stop
$505Delta
Mon, Mar 23 - Tue, Apr 7
United Airlines Logo
8:55 am - 1:10 am
SEA
-
OTP
30h 15m2 stops
United Airlines Logo
6:05 am - 12:20 pm
OTP
-
SEA
16h 15m1 stop
$507United Airlines
Sun, Mar 29 - Fri, Apr 10
Lufthansa Logo
3:00 pm - 1:55 pm
SEA
-
OTP
13h 55m1 stop
Lufthansa Logo
5:55 am - 1:10 pm
OTP
-
SEA
16h 15m1 stop
$509Lufthansa
Tue, Mar 10 - Tue, Mar 24

Air Canada flights from Seattle to Bucharest Otopeni Intl Airport

Our best Air Canada deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
Air Canada
May 13
SEA5:40 amSeattle/Tacoma Intl
24h 40m
2 stops
OTP4:20 pmBucharest Otopeni Intl
Jun 4
OTP6:35 amBucharest Otopeni Intl
23h 02m
2 stops
SEA7:37 pmSeattle/Tacoma Intl
$531
Air Canada
Mar 20
SEA8:10 amSeattle/Tacoma Intl
22h 40m
2 stops
OTP3:50 pmBucharest Otopeni Intl
Mar 31
OTP6:05 amBucharest Otopeni Intl
25h 46m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$538

American Airlines flights from Seattle to Bucharest Otopeni Intl Airport

Our best American Airlines deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
American Airlines
May 14
SEA6:45 pmSeattle/Tacoma Intl
20h 40m
2 stops
OTP1:25 amBucharest Otopeni Intl
Jun 4
OTP8:25 amBucharest Otopeni Intl
25h 14m
2 stops
SEA11:39 pmSeattle/Tacoma Intl
$597
American Airlines
May 14
SEA6:45 pmSeattle/Tacoma Intl
20h 40m
2 stops
OTP1:25 amBucharest Otopeni Intl
Jun 4
OTP8:25 amBucharest Otopeni Intl
18h 34m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$599

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 January 8, 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

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 5/13

1:35 pm-12:25 am

1 stop24h 50m

Bucharest Otopeni Intl

Thu 6/4

8:15 am-6:30 pm

2 stops44h 15m

$493

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 2/4

5:45 pm-11:30 pm

2 stops19h 45m

Bucharest Otopeni Intl

Mon 2/16

8:25 pm-4:55 pm

1 stop30h 30m

$495

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 2/4

5:45 pm-11:30 pm

2 stops19h 45m

Bucharest Otopeni Intl

Mon 2/16

4:00 pm-12:24 am

2 stops42h 24m

$498

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Wed 2/4

5:45 pm-11:30 pm

2 stops19h 45m

Bucharest Otopeni Intl

Mon 2/16

8:25 pm-11:07 pm

2 stops36h 42m

$499

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 3/29

6:40 pm-11:25 pm

1 stop18h 45m

Bucharest Otopeni Intl

Thu 4/9

8:35 am-4:30 pm

1 stop17h 55m

$500

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 3/29

6:50 pm-1:10 am

1 stop20h 20m

Bucharest Otopeni Intl

Thu 4/9

6:05 am-12:20 pm

1 stop16h 15m

$501

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 1/18

2:10 pm-10:50 pm

1 stop22h 40m

Bucharest Otopeni Intl

Tue 2/3

6:00 am-11:40 am

1 stop15h 40m

$502

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Mon 3/23

10:58 pm-12:05 pm

2 stops28h 07m

Bucharest Otopeni Intl

Tue 4/7

2:00 pm-11:45 am

1 stop31h 45m

$505

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Sun 3/29

8:55 am-1:10 am

2 stops30h 15m

Bucharest Otopeni Intl

Fri 4/10

6:05 am-12:20 pm

1 stop16h 15m

$507

SeattleBucharest

SEA - OTP

SEAOTP

Seattle/Tacoma Intl

Tue 3/10

3:00 pm-1:55 pm

1 stop13h 55m

Bucharest Otopeni Intl

Tue 3/24

5:55 am-1:10 pm

1 stop16h 15m

$509

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?

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

If you aren’t able to travel during the month of October, then book flights to Bucharest Otopeni Intl Airport from Seattle during September instead. Flights to Bucharest Otopeni Intl Airport in September, while not as cheap as those in October, still average around $692.

How far in advance should I book a flight to Bucharest Otopeni Intl Airport?

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $859 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from Seattle for as low as $584 on momondo.

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

You could potentially save up to 13% 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

19h 45m

Direct flights

None
The fastest flight from Seattle to Bucharest Otopeni Intl Airport takes 19h 45m
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

  • 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 19h 45m.

  • 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 $553Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
LufthansaPriceFrom $581Free CancellationRating
6.8
7,696 reviews
Search Lufthansa flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,141 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $591Free CancellationRating
7.3
4,153 reviews
Search Turkish Airlines flights
KLMPriceFrom $656Free CancellationRating
7.7
1,434 reviews
Search KLM flights
Air FrancePriceFrom $699Free CancellationRating
7.4
1,519 reviews
Search Air France flights
DeltaPriceFrom $772Free CancellationRating
7.9
8,029 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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