SOF - SEA

$425 Find Cheap Flights from Sofia to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Seattle departing on 6/10. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$770
Typical prices: $915-$1,035
Multiple Airlines
Wed 6/10Tue 7/14
SOF - SEA • 2 stops
Cheapest one-way
$2,268
Multiple Airlines
Mon 3/23
SOF - SEA • 3 stops
Top airlines
Turkish Airlines
Cheapest • from $919 (round-trip)
Turkish Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sofia and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Amsterdam (AMS)
Cheapest • Avg $837 (round-trip)
Munich (MUC)
Shortest trip • 14h 49m (one-way)
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 9% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to Seattle (SOF-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Seattle 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 Sofia to Seattle

Wed, Jun 10 - Tue, Jul 14
Multiple Airlines Logo
6:55 pm - 9:40 am
SOF
-
SEA
48h 45m
2 stops
Multiple Airlines Logo
6:50 pm - 11:00 pm
SEA
-
SOF
18h 10m
1 stop
$770Multiple Airlines
Wed, Jun 10 - Sun, Jul 12
Multiple Airlines Logo
6:55 pm - 9:40 am
SOF
-
SEA
48h 45m
2 stops
Multiple Airlines Logo
2:10 pm - 1:35 pm
SEA
-
SOF
13h 25m
1 stop
$784Multiple Airlines
Thu, Jun 11 - Wed, Jul 15
Multiple Airlines Logo
6:30 pm - 9:40 am
SOF
-
SEA
49h 10m
2 stops
Multiple Airlines Logo
6:50 pm - 11:00 pm
SEA
-
SOF
18h 10m
1 stop
$789Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
7:00 am - 9:38 am
SOF
-
SEA
36h 38m
3 stops
Multiple Airlines Logo
8:00 am - 8:00 pm
SEA
-
SOF
26h 00m
3 stops
$839Multiple Airlines
Thu, Jun 11 - Tue, Jul 14
Multiple Airlines Logo
6:35 pm - 4:00 pm
SOF
-
SEA
31h 25m
2 stops
Multiple Airlines Logo
6:50 pm - 11:00 pm
SEA
-
SOF
18h 10m
1 stop
$859Multiple Airlines
Fri, Jun 12 - Wed, Jul 15
Multiple Airlines Logo
7:35 pm - 5:10 pm
SOF
-
SEA
31h 35m
2 stops
Multiple Airlines Logo
6:50 pm - 11:00 pm
SEA
-
SOF
18h 10m
1 stop
$871Multiple Airlines
Thu, Jun 11 - Sun, Jul 12
Multiple Airlines Logo
6:35 pm - 4:00 pm
SOF
-
SEA
31h 25m
2 stops
Multiple Airlines Logo
2:10 pm - 1:35 pm
SEA
-
SOF
13h 25m
1 stop
$872Multiple Airlines
Fri, Jun 12 - Sun, Jul 12
Multiple Airlines Logo
7:35 pm - 5:10 pm
SOF
-
SEA
31h 35m
2 stops
Multiple Airlines Logo
2:10 pm - 1:35 pm
SEA
-
SOF
13h 25m
1 stop
$883Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
8:55 am - 3:40 pm
SOF
-
SEA
16h 45m
2 stops
Multiple Airlines Logo
6:05 pm - 3:35 pm
SEA
-
SOF
35h 30m
3 stops
$895Multiple Airlines
Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
7:00 am - 9:38 am
SOF
-
SEA
36h 38m
3 stops
Multiple Airlines Logo
6:20 pm - 11:15 pm
SEA
-
SOF
18h 55m
1 stop
$914Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sofia to Seattle flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Seattle, 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 Sofia to Seattle is March, where tickets cost $863 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $1,080 and $1,018 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$770
Most popular time to fly and prices are also 1% lower on average.
Flight from Sofia to Seattle

When to book flights from Sofia to Seattle

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

  • What is the cheapest flight from Sofia to Seattle?

    In the last 3 days, the lowest price for a flight from Sofia to Seattle was $425 for a one-way ticket and $770 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Sofia and on arrival in Seattle.

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

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

  • Which airline alliances offer flights from Sofia to Seattle?

    Star Alliance is the only airline alliance operating flights between Sofia and Seattle.

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

    The two airlines most popular with KAYAK users for flights from Sofia to Seattle are Turkish Airlines and Lufthansa. With an average price for the route of $965 and an overall rating of 7.3, Turkish Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $903 and an overall rating of 6.8.

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

    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 Sofia to Seattle.

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

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

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

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

Reviews of the top airlines flying from Sofia to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Seattle. 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 Sofia to Seattle? 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.
7.3
Turkish AirlinesOverall score based on 4258 reviews
7.5Entertainment
7.3Boarding
7.5Food
7.3Comfort
7.8Crew
Airline reviews

Cabin was kept very hot and it was uncomfortable. Entertainment system did not work at my seat. Crew and service is fantastic

6.0 GoodRob, Mar 2026
IST - IAD
Read more Turkish Airlines reviews

Cabin was kept very hot and it was uncomfortable. Entertainment system did not work at my seat. Crew and service is fantastic

Extremely bad BAD BAD BAD. NEVER TURKISH AIRLINES EVER AGAIN..PIRATES COMPANY.

Typically great service from Turkish with comfortable seat and amenitie, good food and great attention from staff.

Delicious food, comfortable and clean plane. It's a little cramped in the hall in front of the gate.

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

The seats were extremely small. Boarding was not communicated correctly. It wasn’t a pleasant trip.

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

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

Information on your arrival and departure airports

Sofia (SOF)
Seattle (SEA)