SEA - OTP

$366 Find Cheap Flights from Seattle to Bucharest - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Bucharest departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$720
Typical prices: $639-$878
Multiple Airlines
Tue 8/11Tue 8/18
SEA - OTP • 2 stops
Cheapest one-way
$366
Typical prices: $379-$516
Multiple Airlines
Fri 9/4
SEA - OTP • 2 stops
Top airlines
Cheapest • from $746 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Bucharest. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $723 (round-trip)
Shortest trip • 14h 01m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Bucharest (SEA-OTP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Bucharest that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Bucharest

Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
2:10 pm - 12:35 am
SEA
-
OTP
24h 25m
2 stops
Multiple Airlines Logo
6:45 pm - 4:59 pm
OTP
-
SEA
32h 14m
2 stops
$720Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
10:45 am - 12:35 am
SEA
-
OTP
27h 50m
3 stops
Multiple Airlines Logo
4:50 pm - 4:59 pm
OTP
-
SEA
34h 09m
3 stops
$724Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Turkish Airlines Logo
7:15 pm - 8:10 am
SEA
-
OTP
26h 55m
1 stop
Turkish Airlines Logo
3:55 pm - 5:20 pm
OTP
-
SEA
35h 25m
1 stop
$746Turkish Airlines
Thu, Oct 1 - Thu, Oct 8
Turkish Airlines Logo
7:15 pm - 2:35 pm
SEA
-
OTP
33h 20m
1 stop
Turkish Airlines Logo
12:05 pm - 5:20 pm
OTP
-
SEA
15h 15m
1 stop
$748Turkish Airlines
Tue, Oct 13 - Thu, Oct 29
Turkish Airlines Logo
7:15 pm - 2:35 pm
SEA
-
OTP
33h 20m
1 stop
Turkish Airlines Logo
10:10 am - 6:10 pm
OTP
-
SEA
17h 00m
1 stop
$750Turkish Airlines
Tue, Oct 13 - Thu, Oct 29
Multiple Airlines Logo
3:00 pm - 6:35 pm
SEA
-
OTP
17h 35m
2 stops
Multiple Airlines Logo
6:00 am - 1:00 pm
OTP
-
SEA
16h 00m
1 stop
$751Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
2:10 pm - 12:35 am
SEA
-
OTP
24h 25m
2 stops
Multiple Airlines Logo
6:30 pm - 4:59 pm
OTP
-
SEA
32h 29m
3 stops
$754Multiple Airlines
Wed, Oct 21 - Mon, Nov 2
Multiple Airlines Logo
6:50 pm - 1:10 am
SEA
-
OTP
20h 20m
1 stop
Multiple Airlines Logo
4:40 pm - 10:53 pm
OTP
-
SEA
40h 13m
2 stops
$757Multiple Airlines
Wed, Sep 16 - Tue, Sep 29
Multiple Airlines Logo
5:40 pm - 1:35 am
SEA
-
OTP
21h 55m
2 stops
Multiple Airlines Logo
6:20 pm - 3:40 pm
OTP
-
SEA
31h 20m
2 stops
$758Multiple Airlines
Tue, Sep 1 - Mon, Oct 5
Scandinavian Airlines Logo
3:55 pm - 11:45 pm
SEA
-
OTP
21h 50m
2 stops
Scandinavian Airlines Logo
4:50 pm - 1:45 pm
OTP
-
SEA
30h 55m
2 stops
$763Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Bucharest flights

Get data-powered insights and trends into flights from Seattle to Bucharest to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Bucharest Otopeni Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Bucharest Otopeni Intl Airport departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Bucharest Otopeni Intl Airport is October, where tickets cost $596 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,353 and $1,098 respectively.

Good to know

Low seasonFebruary
Cheapest flight$366
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly with an average 26% increase in price.
Flight from Seattle to Bucharest

When to book flights from Seattle to Bucharest

Are your dates flexible? Find out the best times to travel from Seattle to Bucharest based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Bucharest flights

  • What is the cheapest flight from Seattle to Bucharest Otopeni Intl Airport?

    In the last 5 days, the lowest price for a flight from Seattle to Bucharest Otopeni Intl Airport was $366 for a one-way ticket and $720 for a round-trip.

  • Do I need a passport to fly between Seattle and Bucharest?

    Yes, you’ll need a passport to travel to Bucharest from Seattle.

  • Which aircraft models fly most regularly from Seattle to Bucharest?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Bucharest?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Bucharest, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Bucharest, KLM or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Bucharest are KLM and Turkish Airlines. With an average price for the route of $777 and an overall rating of 7.8, KLM is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $780 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Bucharest?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Bucharest.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Bucharest?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Bucharest?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bucharest with an airline and back to Seattle with another airline. Booking your flights between Seattle and OTP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Bucharest?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bucharest from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Seattle to Bucharest

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Bucharest. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Bucharest? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1532 reviews
7.3Food
8.4Crew
7.8Boarding
7.7Comfort
7.2Entertainment
Airline reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

2.0 MediocreNewton, Mar 2026
IAD - AMS
Read more KLM reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

The IFE was quite old, but it worked fine and the content was good. The cabin crew were excellent and the food was as also very good

Overall it was good. Food was bad. I ordered gluten free vegetarian meal. But I got gluten free chicken for my long flight from Seattle to Istanbul. I don’t eat any kind of meat. Second meal I got eggplant with meat which I couldn’t eat. I don’t understand why we can’t get gluten free vegetarian meal for a 12 hour flight. I eat the bread and that was it.

Bough tickets with luggage, but made me pay at Airport as well

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

The food served was frozen salad and hummus. The hot meal was fine. Crew was doing bare minimum

I enjoy flying with Turkish Airlines and such good hospitality among the crew memebers

I did not like the quality of the food and there was no snacks offered between meals.

Delays and no explanations nor apologies. Last 4 times I flew Turkish the flight was significantly delayed. I will avoid this company in the future

A little bit more comfort. It’s tight space around the seats. But all else is great and a smooth flight!

Total chaos with baggage check in…..rude staff in Seattle. And faulty seating/entertainment systems. Unable to log in to WiFi desperate being a member. Kept on getting errors. Never again. Definitely not what’s expected from a Star Alliance member airline.

As far as I remember I've selected and payed 65$ for a seat on the aisle. The seat selection got lost and the location was bad.

The flight was cancelled, so why are you asking me how the flight was?

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Biggest gripes were that the seats were extra narrow as the 4-in-the-middle taper down. As with most flight, too little leg room hurts my aging hips. Also changing the flight time to 3 hours earlier meant that we had a terribly long lay-over in one of the world's most boring airports

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Great! Great staff, great food, great flight :) Keep up the good work!!!

It was good. Nice entertainment selection to keep me busy for the timeframe I wasn't sleeping. Professional, courteous and attentive crew.

They lost my bags and I didn't get them for 4 days after. This also happened to about 30 other people on my flight from fra to MAA (I know bc we were all filing claims in line together from the same flight.)

Flight took off arrive Frankfurt fine ... and then the Pilot parked the plane for 20 minutes while waiting for a steps vehicle to arrive so we all could deplane. This caused us to miss our Naples flight by 6 minutes while running to the next gate.. We are aware of 3 others who also miss their flight. Lufthansa Support said "why miss your flight, your flight arrived on time?" We explained, they provided another flight many hrs later, no meal voucher because our "flight was ontime".

They help we received from the check in crew and boarding cr

Both flights were on time. Great selection of movies on board. My luggage didn't get lost, which made my trip very easy.

Meh. Lived the seat. The entertainment unit did not work and had to be reset 3 times. Service was SLOW taking over 90 min to be served. Crew forgot about my meal. Chicken was dry and almost inedible.

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Moved me away from my family and refused to fix it.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

There was a slight delay. Otherwise, everything else was satisfactory.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

The BA business class cabin is excellent,very comfortable for sleeping but the service could be improved.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Could have done with a 2nd round of drinks even if it was only to distribute bottled water

The second leg of my flight unexpectedly got canceled. I was stuck at the airport for the whole day and instead of flying out that morning I flew out in the evening. For some of my fellow passengers it was the second cancellation and their original flight was supposed to go out the day before. There was no reason given though getting rebooked was quick even though I would have preferred if I would have been on one of the earlier flights that day. Compensation was a £10 voucher for some food at the airport. I eventually arrived without further incident but but due to the cancellation, it was one of my more frustrating travels of my life.

Everything you need to know for your flight from Seattle to Bucharest

Information on your arrival and departure airports