What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Seattle round-trip?

Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Seattle round-trip from $450. Other airlines that can offer you cheap pricing are British Airways, from $807, and United Airlines, from $841. You may be able to fly from Bucharest Otopeni Intl Airport to Seattle for 52% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Bucharest Otopeni Intl Airport to Seattle one-way?

One-way options have recently been found by users for as low as $515 on Scandinavian Airlines. Other airlines that offer cheap prices include Lufthansa from $719 and Emirates from $1,215 one-way.

What is the cheapest day to fly from Bucharest Otopeni Intl Airport to Seattle?

Travelers seeking maximum savings on their Bucharest Otopeni Intl Airport to Seattle flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular airlines that fly from Bucharest Otopeni Intl Airport to Seattle?

The most popular airlines flying from Bucharest Otopeni Intl Airport to Seattle are British Airways, KLM and Lufthansa. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Bucharest Otopeni Intl Airport to Seattle?

Departing on a Friday is a good option for securing a great price. You can expect to save up to 35% when planning your travel around this day of the week.

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

February is one of the best times of the year to fly to Seattle from Bucharest Otopeni Intl Airport. Prices for February average $909 per person but you can even find prices for as low as $824. The most expensive prices can be found in the month of July. Opting for a February flight can save you 19% on your journey compared to booking in July

What is the cheapest time of day to fly from OTP to SEA?

When flying from Bucharest Otopeni Intl Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Seattle from Bucharest Otopeni Intl?

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Bucharest Otopeni Intl to Seattle. 4 airlines have flights to Seattle/Tacoma Intl from Bucharest Otopeni Intl on a regular basis. Booking flights from Bucharest Otopeni Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Bucharest Otopeni Intl per day.

Can I find deals for flights from Otopeni Intl to Seattle that include hotel bookings?

Yes. In addition to deals on Otopeni Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Otopeni Intl to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Otopeni Intl to Seattle.

Can I find deals for business class flights from Otopeni Intl to Seattle?

Yes. Cheapflights offers flight deals from Otopeni Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$450+ Flights from Bucharest Otopeni Intl Airport to Seattle

Q: How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Seattle?

Airfare is below average for this route at the moment. Bucharest Otopeni Intl Airport to Seattle flights typically cost between $965 and $1,349 in August. The cheapest round-trip price found within the last 3 days was $450 on Scandinavian Airlines (Aug 29-Sep 12).

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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Seattle/Tacoma Intl are usually found in February or April, booked 69 days in advance, depart on a Saturday or Thursday and return on a Sunday

Cheap flight deals from Otopeni Intl to Seattle

Round-trip from	$450 (lol.travel)
Popular in	November
Cheapest in	February
Average price	$1,108

From Bucharest Otopeni Intl to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($71 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Otopeni Intl to Seattle

Cheapest flights from Otopeni Intl to Seattle
Explore the most affordable flight options available from Otopeni Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Fri 8/299:50 pmOTP - SEA

1 stop26h 00mScandinavian Airlines

Fri 9/124:20 pmSEA - OTP

1 stop18h 15mScandinavian Airlines

Deal found 7/29

$450

Thu 9/48:35 amOTP - SEA

2 stops20h 39mMultiple Airlines

Sat 9/68:08 amSEA - OTP

2 stops28h 42mMultiple Airlines

Deal found 7/28

$790

Mon 12/88:25 pmOTP - SEA

1 stop25h 05mBritish Airways

Sun 1/256:50 pmSEA - OTP

1 stop14h 45mBritish Airways

Deal found 7/27

$807

Thu 9/116:00 amOTP - SEA

1 stop15h 55mUnited Airlines

Thu 9/185:02 amSEA - OTP

2 stops32h 38mUnited Airlines

Deal found 7/28

$841

Mon 8/254:10 pmOTP - SEA

2 stops40h 49mSWISS

Mon 9/14:25 pmSEA - OTP

1 stop22h 40mSWISS

Deal found 7/28

$886

Fri 8/156:00 amOTP - SEA

2 stops22h 36mAir Canada

Sun 8/317:20 amSEA - OTP

2 stops23h 30mAir Canada

Deal found 7/27

$918

Best flights from Otopeni Intl to Seattle
Discover carefully curated flight deals from Otopeni Intl to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 8/299:50 pmOTP - SEA

1 stop26h 00mScandinavian Airlines

Fri 9/124:20 pmSEA - OTP

1 stop18h 15mScandinavian Airlines

Deal found 7/29

$450

Thu 9/48:35 amOTP - SEA

2 stops20h 39mMultiple Airlines

Sat 9/68:08 amSEA - OTP

2 stops28h 42mMultiple Airlines

Deal found 7/28

$790

Mon 12/88:25 pmOTP - SEA

1 stop25h 05mBritish Airways

Sun 1/256:50 pmSEA - OTP

1 stop14h 45mBritish Airways

Deal found 7/27

$807

Thu 9/116:00 amOTP - SEA

1 stop15h 55mUnited Airlines

Thu 9/185:02 amSEA - OTP

2 stops32h 38mUnited Airlines

Deal found 7/28

$841

Mon 8/254:10 pmOTP - SEA

2 stops40h 49mSWISS

Mon 9/14:25 pmSEA - OTP

1 stop22h 40mSWISS

Deal found 7/28

$886

Fri 8/156:00 amOTP - SEA

2 stops22h 36mAir Canada

Sun 8/317:20 amSEA - OTP

2 stops23h 30mAir Canada

Deal found 7/27

$918

Fri 8/297:00 amOTP - SEA

2 stops17h 45mDelta

Fri 9/1210:15 amSEA - OTP

2 stops21h 05mDelta

Deal found 7/29

$927

Last-minute flights from Otopeni Intl to Seattle
Discover last-minute flight deals from Otopeni Intl to Seattle. Data last updated July 29, 2025 and is based on user searches.

Sun 8/106:25 pmOTP - SEA

1 stop27h 10mKLM

Fri 8/221:55 pmSEA - OTP

1 stop15h 30mKLM

Deal found 7/27

$1,002

Sun 8/106:40 pmOTP - SEA

1 stop27h 15mLufthansa

Fri 8/226:50 pmSEA - OTP

1 stop20h 10mLufthansa

Deal found 7/29

$1,004

Fri 8/156:00 amOTP - SEA

2 stops22h 36mAir Canada

Sun 8/317:20 amSEA - OTP

2 stops23h 30mAir Canada

Deal found 7/27

$918

Mon 8/254:10 pmOTP - SEA

2 stops40h 49mSWISS

Mon 9/14:25 pmSEA - OTP

1 stop22h 40mSWISS

Deal found 7/28

$886

Mon 8/256:05 amOTP - SEA

2 stops26h 54mUnited Airlines

Mon 9/16:40 amSEA - OTP

2 stops25h 55mUnited Airlines

Deal found 7/28

$951

Fri 8/299:50 pmOTP - SEA

1 stop26h 00mScandinavian Airlines

Fri 9/124:20 pmSEA - OTP

1 stop18h 15mScandinavian Airlines

Deal found 7/29

$450

Fri 8/298:35 amOTP - SEA

2 stops19h 15mMultiple Airlines

Sun 9/1411:20 amSEA - OTP

2 stops25h 30mMultiple Airlines

Deal found 7/27

$799

Fri 8/298:25 amOTP - SEA

1 stop19h 55mBritish Airways

Sun 9/141:02 pmSEA - OTP

2 stops25h 43mBritish Airways

Deal found 7/28

$869

Fri 8/297:00 amOTP - SEA

2 stops17h 45mDelta

Fri 9/1210:15 amSEA - OTP

2 stops21h 05mDelta

Deal found 7/29

$927

One-way flights from Otopeni Intl to Seattle
Search for one-way flight options from Otopeni Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Wed 9/39:30 amOTP - SEA

1 stop20h 24mMultiple Airlines

Deal found 7/28

$491

Sat 10/49:25 pmOTP - SEA

1 stop26h 35mScandinavian Airlines

Deal found 7/28

$515

Sat 10/46:00 amOTP - SEA

2 stops22h 49mLufthansa

Deal found 7/28

$719

Tue 9/22:20 amOTP - SEA

1 stop21h 05mEmirates

Deal found 7/28

$1,215

Cheapflights Fare Finder

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

Fri 8/29

9:50 pm-1:50 pm

1 stop26h 00m

Seattle/Tacoma Intl

Fri 9/12

4:20 pm-8:35 pm

1 stop18h 15m

$450

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 9/4

8:35 am-7:14 pm

2 stops20h 39m

Seattle/Tacoma Intl

Sat 9/6

8:08 am-10:50 pm

2 stops28h 42m

$790

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Mon 12/8

8:25 pm-11:30 am

1 stop25h 05m

Seattle/Tacoma Intl

Sun 1/25

6:50 pm-7:35 pm

1 stop14h 45m

$807

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Thu 9/11

6:00 am-11:55 am

1 stop15h 55m

Seattle/Tacoma Intl

Thu 9/18

5:02 am-11:40 pm

2 stops32h 38m

$841

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Mon 8/25

4:10 pm-10:59 pm

2 stops40h 49m

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-1:05 am

1 stop22h 40m

$886

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 8/15

6:00 am-6:36 pm

2 stops22h 36m

Seattle/Tacoma Intl

Sun 8/31

7:20 am-4:50 pm

2 stops23h 30m

$918

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Fri 8/29

7:00 am-2:45 pm

2 stops17h 45m

Seattle/Tacoma Intl

Fri 9/12

10:15 am-5:20 pm

2 stops21h 05m

$927

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Wed 9/3

9:30 am-7:54 pm

1 stop20h 24m

$491

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/4

9:25 pm-2:00 pm

1 stop26h 35m

$515

BucharestSeattle

OTP - SEA

OTPSEA

Bucharest Otopeni Intl

Sat 10/4

6:00 am-6:49 pm

2 stops22h 49m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results

Best time to book a flight from Otopeni Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Otopeni Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bucharest Otopeni Intl Airport to Seattle

How far ahead should I book a flight from Bucharest Otopeni Intl Airport to Seattle?

The best time to book flights from Bucharest Otopeni Intl Airport to Seattle is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $238). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Seattle?

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Emirates, Delta, and SWISS from Bucharest Otopeni Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Emirates

8.1

Very good

3,295 reviews

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Delta

8.0

Very good

7,979 reviews

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

SWISS

7.5

Good

1,683 reviews

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

United Airlines

7.4

Good

8,896 reviews

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Scandinavian Airlines

7.3

Good

1,449 reviews

Emirates

8.1

Very good

3,295 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Related info for your journey

What airport do you fly into for flights to Seattle from Bucharest Otopeni Intl?
Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Bucharest Otopeni Intl to Seattle. 4 airlines have flights to Seattle/Tacoma Intl from Bucharest Otopeni Intl on a regular basis. Booking flights from Bucharest Otopeni Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Bucharest Otopeni Intl per day.
What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Seattle round-trip?
Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Seattle round-trip from $450. Other airlines that can offer you cheap pricing are British Airways, from $807, and United Airlines, from $841. You may be able to fly from Bucharest Otopeni Intl Airport to Seattle for 52% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Bucharest Otopeni Intl Airport to Seattle one-way?
One-way options have recently been found by users for as low as $515 on Scandinavian Airlines. Other airlines that offer cheap prices include Lufthansa from $719 and Emirates from $1,215 one-way.
Can I find deals for flights from Otopeni Intl to Seattle that include hotel bookings?
Yes. In addition to deals on Otopeni Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Otopeni Intl to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Otopeni Intl to Seattle.
Can I find deals for business class flights from Otopeni Intl to Seattle?
Yes. Cheapflights offers flight deals from Otopeni Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Seattle (average of $238). Flying from Bucharest Otopeni Intl Airport to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Seattle

Top 4 airlines flying from Otopeni Intl to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$723	Average$898	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$785	Average$996	FlexibilityNo cancel fee	On-time75%
Lufthansa	Cheapest$808	Average$1,060	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$872	Average$1,349	FlexibilityNo cancel fee	On-time70%

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$450+ Cheap flights from Otopeni Intl (OTP) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Otopeni Intl to Seattle with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Seattle/Tacoma Intl are usually found in February or April, booked 69 days in advance, depart on a Saturday or Thursday and return on a Sunday

Cheap flight deals from Otopeni Intl to Seattle

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Otopeni Intl to Seattle

Cheapest flights from Otopeni Intl to SeattleExplore the most affordable flight options available from Otopeni Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Otopeni Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Seattle that are best for you.

Best time to book a flight from Otopeni Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Otopeni Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Bucharest Otopeni Intl Airport to Seattle

How far ahead should I book a flight from Bucharest Otopeni Intl Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Otopeni Intl to Seattle. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Seattle?

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Seattle?

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Emirates, Delta, and SWISS from Bucharest Otopeni Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from Bucharest Otopeni Intl?

What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Seattle round-trip?

What are the cheapest airlines to fly from Bucharest Otopeni Intl Airport to Seattle one-way?

Can I find deals for flights from Otopeni Intl to Seattle that include hotel bookings?

How can I find direct flights from Otopeni Intl to Seattle?

Can I find deals for business class flights from Otopeni Intl to Seattle?

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Seattle?

Traveling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Otopeni Intl to Seattle

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Top 4 airlines flying from Otopeni Intl to Seattle

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Cheapest flights from Otopeni Intl to Seattle
Explore the most affordable flight options available from Otopeni Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.