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SEA - SOF

$362 Find cheap flights from Seattle to Sofia

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 Sofia departing on 7/17. 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
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Sofia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Sofia.
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Sofia (SEA-SOF)

 
These are the cheapest deals for flights from Seattle to Sofia currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Sofia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Sofia.

Recent one-way flight deals from Seattle to Sofia

Only flying one-way? Below are some of the best one-way flight deals from Seattle to Sofia found on KAYAK recently.

Recent last minute flight deals from Seattle to Sofia

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Seattle to Sofia.

Recent direct flight deals from Seattle to Sofia

The latest deals for direct flights from Seattle to Sofia so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Seattle to Sofia

Find recent round-trip train or bus tickets from Seattle to Sofia.

All round-trip flight deals to Sofia

The cheapest plane tickets to Sofia found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:15 pm - 8:30 amSEA-SOF
34h 15m1 stop
9:10 pm - 4:45 pmSOF-SEA
29h 35m1 stop
$790Turkish Airlines
Find Deal
Thu, Sep 19 - Thu, Oct 3
11:59 pm - 7:00 pmSEA-SOF
33h 01m2 stops
9:20 pm - 11:35 amSOF-SEA
24h 15m1 stop
$946British Airways
Find Deal
Thu, Sep 19 - Thu, Oct 3
11:59 pm - 7:00 pmSEA-SOF
33h 01m2 stops
9:20 pm - 8:52 pmSOF-SEA
33h 32m2 stops
$956British Airways
Find Deal
Thu, Sep 19 - Thu, Oct 3
6:50 pm - 11:00 pmSEA-SOF
18h 10m1 stop
6:00 am - 4:59 pmSOF-SEA
20h 59m1 stop
$1,103Lufthansa
Find Deal
Fri, Aug 16 - Fri, Aug 30
1:10 pm - 6:45 pmSEA-SOF
19h 35m2 stops
12:55 pm - 10:20 pmSOF-SEA
19h 25m2 stops
$1,123Air Canada
Find Deal
Tue, Jul 2 - Tue, Jul 23
6:50 pm - 10:35 pmSEA-SOF
17h 45m2 stops
6:00 am - 4:59 pmSOF-SEA
20h 59m1 stop
$1,131Lufthansa
Find Deal
Fri, Aug 16 - Fri, Aug 30
5:50 am - 6:45 pmSEA-SOF
26h 55m2 stops
6:00 am - 10:20 pmSOF-SEA
26h 20m2 stops
$1,152Air Canada
Find Deal
Fri, Aug 16 - Fri, Aug 30
11:47 pm - 11:00 pmSEA-SOF
37h 13m2 stops
6:00 am - 5:51 pmSOF-SEA
21h 51m2 stops
$1,159United Airlines
Find Deal
Mon, Jul 15 - Thu, Oct 3
12:30 am - 11:00 pmSEA-SOF
36h 30m2 stops
6:30 am - 12:15 pmSOF-SEA
15h 45m1 stop
$1,218United Airlines
Find Deal
Sun, Jul 14 - Thu, Oct 3
6:40 pm - 2:55 pmSEA-SOF
34h 15m1 stop
9:20 am - 4:45 pmSOF-SEA
17h 25m1 stop
$1,235Turkish Airlines
Find Deal
Tue, Jul 30 - Sun, Aug 18
6:55 pm - 11:45 amSEA-SOF
30h 50m3 stops
Wed, Jul 17
11:00 pm - 11:30 amSEA-SOF
50h 30m3 stops
Mon, Jul 15
7:00 am - 3:20 pmSEA-SOF
46h 20m3 stops
Mon, Jun 17
11:00 pm - 10:40 pmSEA-SOF
37h 40m2 stops
Mon, Jul 15
1:50 pm - 11:20 amSEA-SOF
35h 30m2 stops
Wed, Jul 17
11:00 pm - 1:35 pmSEA-SOF
28h 35m2 stops
Mon, Jun 17
5:05 pm - 10:35 pmSEA-SOF
19h 30m1 stop
Mon, Jul 15
12:30 am - 11:00 pmSEA-SOF
36h 30m2 stops
$1,007United Airlines
Find Deal
Tue, Jul 16
12:30 am - 12:10 pmSEA-SOF
25h 40m2 stops
$1,077United Airlines
Find Deal
Sun, Jul 14
12:20 am - 8:25 pmSEA-SOF
34h 05m2 stops
$2,281American Airlines
Find Deal
Sun, Jun 16

Flights from Seattle to Sofia - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Seattle to Sofia?

The average price of all flights from Seattle to Sofia clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Sofia, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Sofia, Monday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from Seattle to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Sofia, 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 Sofia is December, where tickets cost $637 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,338 and $1,296 respectively.

How far in advance should I book a flight from Seattle to Sofia?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Sofia, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 65 days before departure.

Which airlines provide the cheapest flights from Seattle to Sofia?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, United Airlines offered the best one-way deal for that route, at $1,007. KAYAK users also found Seattle to Sofia round-trip flights on Turkish Airlines from $790 and on British Airways from $946.

Good to know

Low season

February

High season

August

Cheapest flight

$362
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Seattle to Sofia

When to book flights from Seattle to Sofia

Are your dates flexible? Find out the best times to travel from Seattle to Sofia 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 flights from Seattle to Sofia

  • What is the cheapest flight from Seattle to Sofia?

    In the last 3 days, the lowest price for a flight from Seattle to Sofia was $362 for a one-way ticket and $790 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Seattle to Sofia?

    On your way to Sofia, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Sofia.

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

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

  • Which airline alliances offer flights from Seattle to Sofia?

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

  • What is the most popular layover when flying to Sofia from Seattle?

    Istanbul is the most popular layover city among KAYAK users traveling from Seattle to Sofia.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Sofia are Turkish Airlines and United Airlines. With an average price for the route of $967 and an overall rating of 7.4, Turkish Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,035 and an overall rating of 7.4.

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

    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 Sofia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia 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 Sofia?

    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 Sofia with an airline and back to Seattle with another airline. Booking your flights between Seattle and SOF 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 Sofia?

    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 Sofia from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Seattle to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Sofia. 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 Sofia? 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.
7.4
Turkish AirlinesOverall score based on 3711 reviews
7.4Comfort
7.5Entertainment
7.4Food
7.4Boarding
7.8Crew
Airline reviews

Overnight flight in the old style Business class, but still very good.

10.0 ExcellentRobert, May 2024IAD - IST
Read more about Turkish Airlines reviews

Overnight flight in the old style Business class, but still very good.

I was in business class, without the business class amenities. Large seat with lots of legroom, but no TV or bed. Food was okay, but I did enjoy the Turkish red wine.

Excellent service and comfort from the moment you check in. Flight crew is hyper focused on making passengers comfortable and at ease. It’s like a flying hotel!

Only chicken as a meat dish through out the flight

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

The flight was delayed almost 2 hours. Bad customer service etc. I will never fly Luthansa. Ever!!!

On time take off…US cabins look tired and need of refresh!

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Everything was good except food. I believe there is room for improvement

Houston to Porto flight delayed landing made us miss our connection. Tried to get on standby for the next flight and even though the lady knew we wouldn’t be able to get on it and she sent us down there. We sat there three hours and then we’re told there’s no way you’re getting on this flight. So we had to go to customer service and ended up having to spend the night in Frankfurt and missed a whole day of our vacation in Porto

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Leg space was not enough. The meal was not satisfactory.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

Boarding was delayed and a bit hectic. The crew was super nice.

Brand new airplane Airbus 330. Great crew. The staff on the ground is always a bit mediocre at Condor.

Some pretty unfriendly check in crew members. This is a no frills airline.

Seat was the worst I ever had in an airplane

I will definitely recommend your service. This is my first experience with Condor and so far it was great!

A flight attendant placed a meal on my tray. I was in 44E. The passenger who was in 44G had gone to the bathroom. I ate the meal. When the passenger in 44G asked where his meal was the flight attendant put the blame on me. She claimed another attendant put the meal on my tray. She then claimed when she gave me the meal she asked me if I had ordered a special meal. She did not Worst experience I have ever had with a crew member.

Entertainment screen was not functioning, there was no effort made by flight attendants to take care of the problem. All I could do was looking at customs forms and watch landing videos for 10 hrs 😁 Bruno Volk

I did not get a flight from JFK to Portland nonexistent Condor flight 308 does not exist and JetBlue knew nothing and someone changed my ticket and eliminated that leg of the flight. I would love to know who’s going to pay for my $750 car rental.

My return flight from JFK to Portland Maine disappeared and it cost me $750 to rent a car and drive home from New York. I don’t even know where to start with who screwed up or what condor blaming the ticket sales or JetBlue JetBlue knows nothing. Everyone giving me the runaround. Gotta say the service all-around sucked.

The flight was fine. We were served a meal and a snack. Boarding was fine.

Book cheap flights from Seattle to Sofia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Sofia found on KAYAK in the last 72 hours.
7/17Wed
3 stops
30h 50mSEA-SOF
$362
7/15Mon
3 stops
50h 30mSEA-SOF
$372
6/17Mon
3 stops
46h 20mSEA-SOF
$430
7/15Mon
2 stops
37h 40mSEA-SOF
$457
7/17Wed
2 stops
35h 30mSEA-SOF
$508
6/17Mon
2 stops
28h 35mSEA-SOF
$686
7/15Mon
1 stop
19h 30mSEA-SOF
$831
7/16Tue
2 stopsUnited Airlines
36h 30mSEA-SOF
$1,007
7/14Sun
2 stopsUnited Airlines
25h 40mSEA-SOF
$1,077
6/16Sun
2 stopsAmerican Airlines
34h 05mSEA-SOF
$2,281

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Seattle - Sofia Flights

Departure:

Seattle (SEA)United States

Destination:

Sofia (SOF)Bulgaria

Return flight deals:

Sofia - Seattle

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