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SEA - SOF

$456 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 7/15. 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 6/15
Sat 6/22

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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 42,211,976 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
6:40 pm - 8:30 amSEA-SOF
27h 50m1 stop
9:10 pm - 4:45 pmSOF-SEA
29h 35m1 stop
$821Turkish Airlines
Find Deal
Tue, Sep 10 - Tue, Sep 24
6:40 pm - 2:55 pmSEA-SOF
34h 15m1 stop
9:10 pm - 4:45 pmSOF-SEA
29h 35m1 stop
$850Turkish Airlines
Find Deal
Thu, Sep 19 - Thu, Oct 3
7:00 am - 11:40 amSEA-SOF
18h 40m2 stops
8:00 am - 6:52 pmSOF-SEA
20h 52m2 stops
$1,051Austrian Airlines
Find Deal
Tue, Sep 10 - Tue, Sep 24
6:50 pm - 11:00 pmSEA-SOF
18h 10m1 stop
12:55 pm - 10:20 pmSOF-SEA
19h 25m2 stops
$1,053Lufthansa
Find Deal
Tue, Sep 10 - Tue, Sep 24
7:00 am - 11:40 amSEA-SOF
18h 40m2 stops
6:45 pm - 6:52 pmSOF-SEA
34h 07m2 stops
$1,083Austrian Airlines
Find Deal
Fri, Jul 26 - Mon, Sep 2
2:15 pm - 6:05 pmSEA-SOF
17h 50m1 stop
12:55 pm - 4:59 pmSOF-SEA
14h 04m1 stop
$1,109Lufthansa
Find Deal
Wed, Jul 17 - Fri, Oct 4
11:47 pm - 6:45 pmSEA-SOF
32h 58m2 stops
6:30 am - 10:22 pmSOF-SEA
25h 52m3 stops
$1,113United Airlines
Find Deal
Mon, Jul 15 - Thu, Oct 3
11:47 pm - 6:45 pmSEA-SOF
32h 58m2 stops
2:05 pm - 12:15 pmSOF-SEA
32h 10m1 stop
$1,130United Airlines
Find Deal
Mon, Jul 15 - Thu, Oct 3
1:40 pm - 7:10 pmSEA-SOF
19h 30m1 stop
8:05 pm - 5:05 pmSOF-SEA
31h 00m2 stops
$1,174British Airways
Find Deal
Sun, Jun 30 - Sat, Aug 3
1:30 pm - 1:30 pmSEA-SOF
14h 00m1 stop
8:05 pm - 5:05 pmSOF-SEA
31h 00m2 stops
$1,224British Airways
Find Deal
Thu, Jun 27 - Sat, Aug 3
7:00 am - 11:20 amSEA-SOF
42h 20m3 stops
Mon, Jul 15
11:59 pm - 1:45 pmSEA-SOF
51h 46m3 stops
Sun, Jun 23
6:00 pm - 2:55 amSEA-SOF
46h 55m3 stops
Mon, Sep 2
7:00 am - 2:00 pmSEA-SOF
45h 00m2 stops
Mon, Jul 15
6:40 pm - 8:30 amSEA-SOF
27h 50m1 stop
$617Turkish Airlines
Find Deal
Mon, Sep 2
7:40 am - 10:50 pmSEA-SOF
29h 10m2 stops
Sun, Jun 23
3:50 pm - 2:55 amSEA-SOF
25h 05m2 stops
Mon, Sep 2
12:30 am - 11:40 amSEA-SOF
25h 10m2 stops
$997United Airlines
Find Deal
Sun, Jul 14
1:14 am - 7:10 pmSEA-SOF
31h 56m2 stops
$1,004American Airlines
Find Deal
Sat, Jun 22
12:18 am - 8:25 pmSEA-SOF
34h 07m2 stops
$1,047American Airlines
Find Deal
Sun, Sep 1
5:05 pm - 10:35 pmSEA-SOF
19h 30m1 stop
6:30 am - 3:00 pmSOF-SEA
18h 30m1 stop
$1,259
Find Deal
Mon, May 20 - Thu, May 23
9:36 pm - 6:05 pmSEA-SOF
34h 29m2 stops
6:30 am - 3:00 pmSOF-SEA
18h 30m1 stop
$1,438
Find Deal
Mon, May 20 - Thu, May 23
9:36 pm - 11:20 amSEA-SOF
27h 44m2 stops
12:00 pm - 10:58 pmSOF-SEA
20h 58m2 stops
$2,018
Find Deal
Mon, May 20 - Thu, May 23
1:15 am - 8:30 pmSEA-SOF
33h 15m2 stops
9:15 pm - 5:45 pmSOF-SEA
30h 30m1 stop
$2,540American Airlines
Find Deal
Tue, May 21 - Tue, May 28
1:15 am - 8:30 pmSEA-SOF
33h 15m2 stops
9:15 pm - 11:05 pmSOF-SEA
35h 50m2 stops
$2,550American Airlines
Find Deal
Tue, May 21 - Tue, May 28
1:15 am - 8:30 pmSEA-SOF
33h 15m2 stops
9:15 pm - 11:35 amSOF-SEA
24h 20m1 stop
$2,565American Airlines
Find Deal
Tue, May 21 - Tue, May 28
1:15 am - 8:25 pmSEA-SOF
33h 10m2 stops
9:20 pm - 11:35 amSOF-SEA
24h 15m1 stop
$2,574American Airlines
Find Deal
Sun, May 19 - Thu, May 23
1:15 am - 8:25 pmSEA-SOF
33h 10m2 stops
9:20 pm - 11:05 pmSOF-SEA
35h 45m2 stops
$2,584American Airlines
Find Deal
Sun, May 19 - Thu, May 23
1:00 pm - 6:05 pmSEA-SOF
43h 05m3 stops
12:55 pm - 10:23 pmSOF-SEA
19h 28m2 stops
$2,631United Airlines
Find Deal
Mon, May 20 - Thu, May 23

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, Tuesday is the cheapest day to fly and Monday 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, Turkish Airlines offered the best one-way deal for that route, at $617. KAYAK users also found Seattle to Sofia round-trip flights on Turkish Airlines from $821 and on Austrian Airlines from $1,051.

Good to know

Low season

February

High season

August

Cheapest flight

$456
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 $456 for a one-way ticket and $821 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 $971 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 3707 reviews
7.8Crew
7.4Comfort
7.4Boarding
7.5Entertainment
7.4Food
Airline reviews

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.

6.0 GoodWendy, May 2024JFK - IST
Read more about Turkish Airlines reviews

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.

Oh my god! For an13 hour flight they serve you food just one time. Also don’t be thirsty they give you a little small cup of soda to drink. They seem like their goal is to feed you one so they don’t have to be bothered with you. It quite surprise for such a long flight there are several times to eat at least three and the food was well lackluster. The food and lack of offering drinks which were always hot no ice provided.

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Everything could be better. The plain was in Orlando for 3 hours prior to boarding. After boarding all the passengers they found out that plane has a mechanical problem. After an hour the problem was solved, the pilot comes on and states, (We have to go back to the gate and take on more fuel!) Are you kidding me???? Who they have for pilots, Boy scouts?? I barely made my connecting flight to Vienna, but my suitcase did not. I'm still waiting for it, in Gyor, Hungary. Am I having fun yet?? Other passenger were in the same binned. I travelled all over the world both for business and pleasure with all types of airlines. By far of all the carriers I travelled with, Discover is the worst. I'm contemplating to bight the bullet and go back to the US with a different carrier. For International flights, the seats are made for little people. The person in front of me had his seat reclined the whole way, I felt like he was sitting in my lap. For closing, I would not let my dog travel with Discover, yet alone recommend it to an other person. Does it sound like I'm frustrated, Think about having to travel back to the US with them. I'm sure I'll not hear back from you, because nobody wants to hear about bad news, but with all the hype Discover puts out there about their services, nothing could be further from the truth. Joseph A. Nagy

Only problem we experienced was not anything to do with Lufthansa. When changing planes in Frankfurt we spent over an hour on passport control line. Lufthansa did a marvelous job on everything from keeping me informed via texts, to terrific cabin crew.

Bordón could be bettet if the company say before boarding the order of the different groups.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

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

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

It was ok, not as good as it used to be. The Heathrow connection was a disaster - complete anarchy, unknowledgable and skimpy assistance and signage. Gate crew at next flight was great, held the flight while my wife struggled through security.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

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.

I don't believe we were given any food... but for the size of the plane, it was pretty comfortable and a nice flight. I dont believe there was any individual onboard entertainment, and the headphone jack was the one with 2 holes, so I couldnt use my headphones... the boarding times were all over the place, and we never really flew on time.

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.
7/15Mon
3 stops
42h 20mSEA-SOF
$456
6/23Sun
3 stops
51h 46mSEA-SOF
$521
9/2Mon
3 stops
46h 55mSEA-SOF
$528
7/15Mon
2 stops
45h 00mSEA-SOF
$595
9/2Mon
1 stopTurkish Airlines
27h 50mSEA-SOF
$617
6/23Sun
2 stops
29h 10mSEA-SOF
$626
9/2Mon
2 stops
25h 05mSEA-SOF
$682
7/14Sun
2 stopsUnited Airlines
25h 10mSEA-SOF
$997
6/22Sat
2 stopsAmerican Airlines
31h 56mSEA-SOF
$1,004
9/1Sun
2 stopsAmerican Airlines
34h 07mSEA-SOF
$1,047

Search by stops

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Last minute flights from Seattle to Sofia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Sofia that are departing in the next 10 days.
5/20Mon
multi-stop
19h 30mSEA-SOF
5/23Thu
multi-stop
18h 30mSOF-SEA
$1,259
5/20Mon
multi-stop
34h 29mSEA-SOF
5/23Thu
multi-stop
18h 30mSOF-SEA
$1,438
5/20Mon
multi-stop
27h 44mSEA-SOF
5/23Thu
multi-stop
20h 58mSOF-SEA
$2,018
5/21Tue
multi-stopAmerican Airlines
33h 15mSEA-SOF
5/28Tue
multi-stopAmerican Airlines
30h 30mSOF-SEA
$2,540
5/21Tue
multi-stopAmerican Airlines
33h 15mSEA-SOF
5/28Tue
multi-stopAmerican Airlines
35h 50mSOF-SEA
$2,550
5/21Tue
multi-stopAmerican Airlines
33h 15mSEA-SOF
5/28Tue
multi-stopAmerican Airlines
24h 20mSOF-SEA
$2,565
5/19Sun
multi-stopAmerican Airlines
33h 10mSEA-SOF
5/23Thu
multi-stopAmerican Airlines
24h 15mSOF-SEA
$2,574
5/19Sun
multi-stopAmerican Airlines
33h 10mSEA-SOF
5/23Thu
multi-stopAmerican Airlines
35h 45mSOF-SEA
$2,584
5/20Mon
multi-stopUnited Airlines
43h 05mSEA-SOF
5/23Thu
multi-stopUnited Airlines
19h 28mSOF-SEA
$2,631

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Seattle - Sofia Flights

Departure:

Seattle (undefined)United States

Destination:

Sofia (SOF)Bulgaria

Return flight deals:

Sofia - Seattle

Cabin classes:

Browse destinations: