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Cheap flights from Seattle to Bucharest from $237

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 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Scandinavian Airlines Logo
4:00 pm - 9:10 pmSEA-OTP
19h 10m1 stop
Scandinavian Airlines Logo
1:00 pm - 11:24 pmOTP-SEA
44h 24m2 stops
$533Scandinavian Airlines
Find Deal
Sun, Sep 7 - Wed, Nov 12
Scandinavian Airlines Logo
4:20 pm - 9:10 pmSEA-OTP
18h 50m1 stop
Scandinavian Airlines Logo
1:00 pm - 10:13 pmOTP-SEA
43h 13m2 stops
$539Scandinavian Airlines
Find Deal
Sun, Oct 5 - Wed, Nov 12
Scandinavian Airlines Logo
4:00 pm - 9:10 pmSEA-OTP
19h 10m1 stop
Scandinavian Airlines Logo
9:50 pm - 9:53 pmOTP-SEA
34h 03m2 stops
$577Scandinavian Airlines
Find Deal
Sun, Aug 24 - Fri, Sep 19
Turkish Airlines Logo
7:10 pm - 8:25 pmSEA-OTP
15h 15m1 stop
Turkish Airlines Logo
10:10 am - 5:05 pmOTP-SEA
16h 55m1 stop
$584Turkish Airlines
Find Deal
Wed, Oct 8 - Wed, Nov 12
Turkish Airlines Logo
7:10 pm - 8:25 pmSEA-OTP
15h 15m1 stop
Turkish Airlines Logo
9:30 am - 10:35 amOTP-SEA
35h 05m1 stop
$587Turkish Airlines
Find Deal
Tue, Aug 12 - Fri, Sep 5
Lufthansa Logo
3:00 pm - 1:55 pmSEA-OTP
13h 55m1 stop
Lufthansa Logo
5:55 am - 12:10 pmOTP-SEA
16h 15m1 stop
$608Lufthansa
Find Deal
Tue, Oct 28 - Thu, Nov 6
United Airlines Logo
9:05 am - 4:50 pmSEA-OTP
21h 45m2 stops
United Airlines Logo
5:55 am - 12:10 pmOTP-SEA
16h 15m1 stop
$609United Airlines
Find Deal
Mon, Sep 1 - Thu, Nov 13
Lufthansa Logo
10:00 am - 1:00 pmSEA-OTP
17h 00m2 stops
Lufthansa Logo
5:55 am - 12:10 pmOTP-SEA
16h 15m1 stop
$610Lufthansa
Find Deal
Tue, Oct 7 - Thu, Nov 13
United Airlines Logo
8:45 am - 4:50 pmSEA-OTP
22h 05m2 stops
United Airlines Logo
5:55 am - 6:25 pmOTP-SEA
22h 30m2 stops
$614United Airlines
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Tue, Sep 2 - Wed, Nov 12
Delta Logo
9:30 pm - 12:10 pmSEA-OTP
28h 40m2 stops
Delta Logo
6:30 am - 10:25 pmOTP-SEA
25h 55m2 stops
$635Delta
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Tue, Aug 5 - Fri, Aug 22

Scandinavian Airlines flights from Seattle to Bucharest Otopeni Intl Airport

Our best Scandinavian Airlines deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
Scandinavian Airlines
Sep 7
SEA4:00 pmSeattle/Tacoma Intl
19h 10m
1 stop
OTP9:10 pmBucharest Otopeni Intl
Nov 12
OTP1:00 pmBucharest Otopeni Intl
44h 24m
2 stops
SEA11:24 pmSeattle/Tacoma Intl
$533
Find similar
Scandinavian Airlines
Oct 5
SEA4:20 pmSeattle/Tacoma Intl
18h 50m
1 stop
OTP9:10 pmBucharest Otopeni Intl
Nov 12
OTP1:00 pmBucharest Otopeni Intl
43h 13m
2 stops
SEA10:13 pmSeattle/Tacoma Intl
$539
Find similar
Scandinavian Airlines
Aug 24
SEA4:00 pmSeattle/Tacoma Intl
19h 10m
1 stop
OTP9:10 pmBucharest Otopeni Intl
Sep 19
OTP9:50 pmBucharest Otopeni Intl
34h 03m
2 stops
SEA9:53 pmSeattle/Tacoma Intl
$577
Find similar

Turkish Airlines flights from Seattle to Bucharest Otopeni Intl Airport

Our best Turkish Airlines deals on Seattle to Bucharest Otopeni Intl Airport flight tickets
Turkish Airlines
Oct 8
SEA7:10 pmSeattle/Tacoma Intl
15h 15m
1 stop
OTP8:25 pmBucharest Otopeni Intl
Nov 12
OTP10:10 amBucharest Otopeni Intl
16h 55m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$584
Find similar
Turkish Airlines
Aug 12
SEA7:10 pmSeattle/Tacoma Intl
15h 15m
1 stop
OTP8:25 pmBucharest Otopeni Intl
Sep 5
OTP9:30 amBucharest Otopeni Intl
35h 05m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$587
Find similar
Turkish Airlines
Nov 6
SEA7:00 pmSeattle/Tacoma Intl
27h 50m
1 stop
OTP8:50 amBucharest Otopeni Intl
Nov 20
OTP10:10 amBucharest Otopeni Intl
16h 55m
1 stop
SEA5:05 pmSeattle/Tacoma Intl
$591
Find similar

See travel insights to Bucharest from

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 cheapest month to fly to Bucharest Otopeni Intl Airport?

If you aren’t able to travel during the month of February, 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 February, still average around $712.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

Our data shows that Sunday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $879. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Bucharest Otopeni Intl Airport for around $1,246.

What is the cheapest time of day to depart on your flight to Bucharest Otopeni Intl Airport?

Our most recent data shows that the best time of day to fly to Bucharest Otopeni Intl Airport is in the morning. Flights from Seattle to Bucharest Otopeni Intl Airport during this time can be as low as $812. In the evening is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $2,198 per ticket.

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 $1,009 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 $669 on momondo.

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

You could potentially save up to 3% 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?

As of July 2025, prices for Seattle to Bucharest Otopeni Intl Airport flights are approximately 32% cheaper when compared to flights at the same time last year.

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

Best Price Found

$237

Fastest flight time

13h 45m

Direct flights

None
The best one-way flight to Bucharest Otopeni Intl Airport from Seattle in the past 72 hours is $237. The best round-trip flight deal from Seattle to Bucharest Otopeni Intl Airport found on momondo in the last 72 hours is $533.
The fastest flight from Seattle to Bucharest Otopeni Intl Airport takes 13h 45m
There are no direct flights from Seattle to Bucharest Otopeni Intl Airport. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Bucharest Otopeni Intl Airport.
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  • 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 13h 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
LufthansaPriceFrom $585Free CancellationRating
6.8
7,199 reviews
Search Lufthansa flights
United AirlinesPriceFrom $624Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
Air FrancePriceFrom $633Free CancellationRating
7.5
1,467 reviews
Search Air France flights
Turkish AirlinesPriceFrom $668Free CancellationRating
7.3
3,896 reviews
Search Turkish Airlines flights
DeltaPriceFrom $684Free CancellationRating
8.0
7,952 reviews
Search Delta flights
KLMPriceFrom $705Free CancellationRating
7.8
1,372 reviews
Search KLM flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

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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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