$575 Cheap Flights from Bucharest (OTP) to Seattle (SEA)

View $575 flight on Tue, Jun 9, 2026Opens in a new window

Popular airlines from Henri Coanda Intl. Airport (OTP) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Bucharest to Seattle (OTP-SEA)

Prices were available within the past 7 days and start at $575 for one-way flights and $754 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, May 22 - Fri, May 29
OTP
Bucharest
SEA
Seattle
$754 Roundtrip, found 18 hours ago
$754
Roundtrip
found 18 hours ago
Select Scandinavian Airlines flight, departing Fri, May 22 from Bucharest to Seattle, returning Fri, May 29, priced at $754 found 18 hours ago
Tarom-Romanian Air Transport
Thu, Apr 23 - Sat, May 16
OTP
Bucharest
SEA
Seattle
$840 Roundtrip, found 6 days ago
$840
Roundtrip
found 6 days ago
Select Tarom-Romanian Air Transport flight, departing Thu, Apr 23 from Bucharest to Seattle, returning Sat, May 16, priced at $840 found 6 days ago
British Airways
Tue, Oct 6 - Tue, Dec 8
OTP
Bucharest
SEA
Seattle
$854 Roundtrip, found 18 hours ago
$854
Roundtrip
found 18 hours ago
Select British Airways flight, departing Tue, Oct 6 from Bucharest to Seattle, returning Tue, Dec 8, priced at $854 found 18 hours ago
British Airways
Wed, Jan 13 - Mon, Jan 25
OTP
Bucharest
SEA
Seattle
$859 Roundtrip, found 6 days ago
$859
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Jan 13 from Bucharest to Seattle, returning Mon, Jan 25, priced at $859 found 6 days ago
British Airways
Wed, Jan 13 - Mon, Jan 25
OTP
Bucharest
SEA
Seattle
$861 Roundtrip, found 6 days ago
$861
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Jan 13 from Bucharest to Seattle, returning Mon, Jan 25, priced at $861 found 6 days ago
American Airlines
Wed, Jun 3 - Wed, Nov 25
OTP
Bucharest
SEA
Seattle
$877 Roundtrip, found 16 hours ago
$877
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Jun 3 from Bucharest to Seattle, returning Wed, Nov 25, priced at $877 found 16 hours ago
Qatar Airways
Thu, Mar 12 - Thu, Mar 26
OTP
Bucharest
SEA
Seattle
$881 Roundtrip, found 1 day ago
$881
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Thu, Mar 12 from Bucharest to Seattle, returning Thu, Mar 26, priced at $881 found 1 day ago
Lufthansa
Wed, Apr 1 - Fri, May 1
OTP
Bucharest
SEA
Seattle
$885 Roundtrip, found 6 days ago
$885
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Apr 1 from Bucharest to Seattle, returning Fri, May 1, priced at $885 found 6 days ago
Swiss International Air Lines
Tue, Apr 28 - Tue, Jun 2
OTP
Bucharest
SEA
Seattle
$918 Roundtrip, found 2 days ago
$918
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Tue, Apr 28 from Bucharest to Seattle, returning Tue, Jun 2, priced at $918 found 2 days ago
Air Canada
Thu, Jun 18 - Wed, Jul 22
OTP
Bucharest
SEA
Seattle
$927 Roundtrip, found 5 days ago
$927
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Jun 18 from Bucharest to Seattle, returning Wed, Jul 22, priced at $927 found 5 days ago

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Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $1,012
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $1,012

Frequently asked questions

How much does a flight from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $575 and cheap return flights from $754 Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $869 to $3591, and return flights typically cost between $945 and $4833. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from OTP to SEA is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter OTP to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Air Serbia is one of the cheapest airlines offering connecting flights from Bucharest (OTP) to Seattle, WA (SEA), with round-trip tickets starting from around $1,185. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Henri Coanda International Airport (OTP) in Bucharest to Seattle - Tacoma International Airport (SEA) typically departs at around 2:20 AM. This is a seasonal service active in April, May, June, July, August, and October. An early departure like this can help you maximize your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 6am to 9am. About 73% of passengers prefer this time window. Many major carriers, including KLM, Lufthansa, and British Airways, offer flights during this window. This timing works well because it allows you to arrive in Seattle with plenty of time to explore the city.
How long does it take to fly from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from OTP to SEA with a connection usually takes about 15 hours 50 minutes, traveling roughly 5,796 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for OTP to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Henri Coanda Intl. (OTP)?
If you're planning to travel to Seattle from Henri Coanda Intl. (OTP), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Heathrow (LHR) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Bucharest (OTP-Henri Coanda Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Henri Coanda Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Emirates, JetBlue Airways, KLM, Lufthansa, Qatar Airways, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$754
Distance
5795 mi

Book with confidence

Bucharest to Seattle Flights

The cheapest times to fly from Bucharest to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bucharest to Seattle are during the month of May. You can find some of the cheapest flights from Bucharest to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bucharest to Seattle

Sunday is one of the best days to book for cheap flights from Bucharest to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Bucharest to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bucharest to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $575 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bucharest to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Bucharest to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Bucharest to Seattle Flights

*Flight schedules are subject to change.

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