SOF - SEA

$439 Find Cheap Flights from Sofia to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Seattle departing on 11/19. 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
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Everything you should know

Cheapest round-trip
$862
Overall average: $887
Turkish Airlines
Sun 11/9Sun 11/23
SOF - SEA • 1 stop
Cheapest one-way
$439
Typical prices: $803-$837
Multiple Airlines
Wed 11/19
SOF - SEA • 3 stops
Top airlines
Turkish Airlines
Cheapest • from $862 (round-trip)
Turkish Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 11% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Sun, Nov 9 - Sun, Nov 23
Turkish Airlines Logo
9:40 pm - 5:05 pmSOF-SEA
29h 25m1 stop
Turkish Airlines Logo
7:00 pm - 3:10 pmSEA-SOF
34h 10m1 stop
$862Turkish Airlines
Find Deal
Thu, Nov 20 - Wed, Dec 3
Lufthansa Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
Lufthansa Logo
10:05 am - 1:50 pmSEA-SOF
17h 45m2 stops
$864Lufthansa
Find Deal
Sat, Nov 15 - Fri, Nov 28
Lufthansa Logo
6:25 am - 12:10 pmSOF-SEA
15h 45m1 stop
Lufthansa Logo
3:10 pm - 10:45 pmSEA-SOF
21h 35m1 stop
$873Lufthansa
Find Deal
Thu, Nov 20 - Wed, Dec 3
Lufthansa Logo
6:00 am - 12:10 pmSOF-SEA
16h 10m1 stop
Lufthansa Logo
3:10 pm - 6:20 pmSEA-SOF
17h 10m1 stop
$877Lufthansa
Find Deal
Thu, Nov 20 - Wed, Dec 3
Air Canada Logo
6:00 am - 10:16 pmSOF-SEA
26h 16m2 stops
Air Canada Logo
10:05 am - 1:50 pmSEA-SOF
17h 45m2 stops
$883Air Canada
Find Deal
Sat, Nov 15 - Fri, Nov 28
Multiple Airlines Logo
6:25 am - 7:16 pmSOF-SEA
22h 51m2 stops
Multiple Airlines Logo
3:10 pm - 10:45 pmSEA-SOF
21h 35m1 stop
$894Multiple Airlines
Find Deal
Thu, Apr 23 - Thu, May 28
Air Canada Logo
6:10 am - 7:18 pmSOF-SEA
23h 08m2 stops
Air Canada Logo
2:55 pm - 6:40 pmSEA-SOF
17h 45m2 stops
$895Air Canada
Find Deal
Thu, Apr 23 - Thu, May 28
United Airlines Logo
6:10 am - 12:20 pmSOF-SEA
16h 10m1 stop
United Airlines Logo
2:10 pm - 10:50 pmSEA-SOF
22h 40m1 stop
$897United Airlines
Find Deal
Thu, Apr 23 - Thu, May 28
United Airlines Logo
6:15 am - 11:55 amSOF-SEA
15h 40m1 stop
United Airlines Logo
2:20 pm - 5:55 pmSEA-SOF
17h 35m1 stop
$900United Airlines
Find Deal
Fri, Apr 24 - Tue, Apr 28
British Airways Logo
2:20 pm - 11:35 amSOF-SEA
31h 15m1 stop
British Airways Logo
1:35 pm - 8:40 pmSEA-SOF
21h 05m1 stop
$922British Airways
Find Deal
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’s the cheapest day of the week to fly from Sofia to Seattle?

The average price of all round-trip flights from Sofia to Seattle clicked on KAYAK for each day over the last 12 months.

For Sofia to Seattle, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Seattle back to Sofia, the best deals are generally found on Saturday, with Friday being the most expensive.

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 February, where tickets cost $802 (return) on average. On the other hand, the most expensive months are July and March, where the average cost of round-trip tickets is $1,037 and $1,006 respectively.

Good to know

Low seasonAugust
Cheapest flight$439
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 0% 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 $439 for a one-way ticket and $862 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 $926 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 $876 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 4031 reviews
7.3Boarding
7.7Crew
7.4Food
7.3Comfort
7.4Entertainment
Airline reviews

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

6.0 GoodAnonymous, Oct 2025IST - ORD
Read more Turkish Airlines reviews

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

The best airline for international travel in terms of value you get in business class (service/cost)

I liked the overall flight experience. However, Turkish officials could do a better job at guiding non-Turkish speakers to their connecting flight gates in such a huge & vast airport.

Very small and cramped aisles and seats. Food was poor but the fresh hot roll and hummus was good. No cans of soda given but they had small bottles of water. Crew was nice and pleasant and kept bathroom clean.

We couldn’t fly to Chicago on our booked flight. The flight was overbooked.

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

I was sitting almost in the back, the seats are very tight and there’s no legroom, it’s uncomfortable for a long distance

Absolute worst airline. Charged us $720 to check 4 bags (2 of which were carry-on). Entertainment systems didnt work. And on a 12 hour flight they served 2 meals and never once came around outside of those 2 meals with a beverage or cup of water. Will never fly them again.

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

About an hour delay but we made it to Chicago. I feel that the smaller connecting flights are the ones that cause the delays on the bigger planes that fly international.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

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

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