HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$606+ Cheap flights from Seattle (SEA) to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Sofia with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Seattle/Tacoma Intl to Sofia are usually found in November or January, booked 35 days in advance, depart on a Saturday or Monday and return on a Sunday

Cheap flight deals from Seattle to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$606
(oojo)

Popular in

December

Cheapest in

November

Average price

$825
Provider with most accurate pricing for Seattle/Tacoma Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sofia flights.
Search Deals
From Seattle/Tacoma Intl to Sofia
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Seattle to Sofia

Cheapest flights from Seattle to Sofia
Explore the most affordable flight options available from Seattle to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/198:00 pmSEA - SOF
1 stop15h 50mTurkish Airlines
Mon 5/53:35 pmSOF - SEA
2 stops41h 07mTurkish Airlines
Deal found 2/21$606
This Turkish Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:10 pmSEA - SOF
1 stop33h 35mMultiple Airlines
Mon 4/149:15 amSOF - SEA
2 stops23h 28mMultiple Airlines
Deal found 2/21$631
This United deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/192:50 pmSEA - SOF
2 stops22h 55mUnited Airlines
Mon 5/51:50 pmSOF - SEA
2 stops38h 43mUnited Airlines
Deal found 2/21$733
This KLM deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/241:55 pmSEA - SOF
1 stop14h 05mKLM
Fri 9/57:00 amSOF - SEA
2 stops19h 55mKLM
Deal found 2/21$826
This British Airways deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/241:30 pmSEA - SOF
1 stop19h 40mBritish Airways
Mon 9/88:00 pmSOF - SEA
1 stop32h 20mBritish Airways
Deal found 2/21$830
This Gurufare deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/66:50 pmSEA - SOF
1 stop13h 50mLufthansa
Sun 4/131:55 pmSOF - SEA
1 stop32h 30mLufthansa
Deal found 2/21$888
This Air Canada deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:20 amSEA - SOF
2 stops19h 45mAir Canada
Thu 9/46:15 amSOF - SEA
2 stops40h 50mAir Canada
Deal found 2/21$1,134
This Gurufare deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/164:25 pmSEA - SOF
1 stop31h 40mSWISS
Thu 7/1010:50 amSOF - SEA
2 stops21h 39mSWISS
Deal found 2/21$1,640
This Emirates deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/65:15 pmSEA - SOF
2 stops61h 55mEmirates
Sat 4/122:05 amSOF - SEA
1 stop21h 20mEmirates
Deal found 2/21$1,658
This Austrian Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/268:00 amSEA - SOF
2 stops17h 40mAustrian Airlines
Mon 6/306:55 pmSOF - SEA
2 stops35h 53mAustrian Airlines
Deal found 2/22$1,684

Find flights from Seattle to Sofia within your budget

Customize your flight search to find flights from Seattle to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

Seattle

Fly to

Sofia

Route

Depart

Return

Price

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 3/19

8:00 pm-8:50 pm

1 stop15h 50m

Sofia

Mon 5/5

3:35 pm-10:42 pm

2 stops41h 07m

$606

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 4/7

7:10 pm-2:45 pm

1 stop33h 35m

Sofia

Mon 4/14

9:15 am-10:43 pm

2 stops23h 28m

$631

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 3/19

2:50 pm-10:45 pm

2 stops22h 55m

Sofia

Mon 5/5

1:50 pm-6:33 pm

2 stops38h 43m

$733

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 4/6

6:50 pm-6:40 pm

1 stop13h 50m

Sofia

Sun 4/13

1:55 pm-12:25 pm

1 stop32h 30m

$888

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 6/16

4:25 pm-10:05 am

1 stop31h 40m

Sofia

Thu 7/10

10:50 am-10:29 pm

2 stops21h 39m

$1,640

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 4/6

5:15 pm-5:10 pm

2 stops61h 55m

Sofia

Sat 4/12

2:05 am-1:25 pm

1 stop21h 20m

$1,658

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 5/26

5:40 am-6:40 pm

2 stops27h 00m

Sofia

Tue 7/1

12:45 pm-2:16 pm

2 stops35h 31m

$1,664

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Mon 5/26

8:00 am-11:40 am

2 stops17h 40m

Sofia

Mon 6/30

6:55 pm-8:48 pm

2 stops35h 53m

$1,684

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Thu 5/29

9:40 am-2:00 pm

2 stops18h 20m

Sofia

Sun 6/29

7:00 am-4:55 pm

2 stops19h 55m

$2,119

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Sun 6/22

1:30 pm-7:10 pm

1 stop19h 40m

$1,058

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 16 results
1
2

Compare providers for flights from Seattle to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sofia in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Sofia

Get recent, data-driven insights about flights from Seattle to Sofia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Sofia?

Currently, November is the cheapest month in which you can book a flight from Seattle to Sofia (average of $632). Flying from Seattle to Sofia in June is currently the most expensive (average of $1,243). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SOF?

Find hourly flight availability from Seattle to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Seattle to Sofia by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Sofia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Sofia flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated February 22, 2025.
Emirates
8.1
Very good
3,276 reviews

Food

7.9

Crew

8.3

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Emirates
8.1
Very good
3,276 reviews
Emirates
8.1
Very good
3,276 reviews

Food

7.9

Crew

8.3

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

United Airlines
7.4
Good
8,754 reviews
Emirates
8.1
Very good
3,276 reviews

Food

7.9

Crew

8.3

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Turkish Airlines
7.3
Good
3,825 reviews
Emirates
8.1
Very good
3,276 reviews

Food

7.9

Crew

8.3

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Lufthansa
6.7
Okay
6,990 reviews
Emirates
8.1
Very good
3,276 reviews

Food

7.9

Crew

8.3

Comfort

8.0

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20

4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Sofia round-trip?

    Cheapflights users have booked flights from Seattle to Sofia round-trip from $606. Other airlines that can offer you cheap pricing are United Airlines, from $733, and Lufthansa, from $888. Turkish Airlines is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Seattle to Sofia that include hotel bookings?

    Yes. In addition to deals on Seattle to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Sofia.

  • Can I find deals for business class flights from Seattle to Sofia?

    Yes. Cheapflights offers flight deals from Seattle to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Sofia (average of $632). Flying from Seattle to Sofia in June is currently the most expensive (average of $1,243). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Sofia flights
Spokane to Sofia flights

Top 4 airlines flying from Seattle to Sofia

Discover the top 4 airlines that operate flights from Seattle to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$563Average$1,009FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$632Average$1,142FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$688Average$1,168FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$758Average$1,004FlexibilityNo cancel feeOn-time77%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.