$333+ Cheap flights from Seattle (SEA) to Sofia (SOF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
พ.ค. 25 — มิ.ย. 11
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to SofiaExplore 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 เมษายน 25, 2026.
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 เมษายน 25, 2026.
This oojo deal was found by Cheapflights users on 4/21. 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.
พฤ. 4/237:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
พฤ. 5/289:35 am
SOF
- SEA
1 stop17h 40m
Turkish Airlines
Deal found 4/21![Turkish Airlines logo]()
$684
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/267:10 pm
SEA
- SOF
1 stop27h 35m
Turkish Airlines
อ. 5/129:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$688
This deal was found by Cheapflights users on 4/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 9/97:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
พ. 9/239:35 am
SOF
- SEA
1 stop17h 40m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$713
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 9/67:10 pm
SEA
- SOF
1 stop33h 50m
Turkish Airlines
อ. 9/223:50 pm
SOF
- SEA
1 stop35h 25m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$714
This deal was found by Cheapflights users on 4/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 9/137:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
พ. 9/239:35 am
SOF
- SEA
1 stop17h 40m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$716
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/1012:35 pm
SEA
- SOF
1 stop16h 25m
Turkish Airlines
พ. 9/99:05 pm
SOF
- SEA
1 stop23h 35m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$736
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 10/37:10 pm
SEA
- SOF
1 stop27h 35m
Turkish Airlines
อ. 10/2710:05 am
SOF
- SEA
1 stop17h 00m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$747
This Gotogate deal was found by Cheapflights users on 4/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 9/66:50 pm
SEA
- SOF
1 stop18h 25m
Multiple Airlines
อ. 9/226:10 am
SOF
- SEA
2 stops18h 12m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$748
This Turkish Airlines deal was found by Cheapflights users on 4/23. 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.
อา. 8/97:10 pm
SEA
- SOF
1 stop33h 50m
Turkish Airlines
อ. 9/83:50 pm
SOF
- SEA
1 stop35h 25m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$749
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/247:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
อ. 9/159:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$750
This deal was found by Cheapflights users on 4/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 9/117:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
พ. 9/239:35 am
SOF
- SEA
1 stop17h 40m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$754
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 9/66:50 pm
SEA
- SOF
1 stop18h 25m
Lufthansa
อ. 9/226:10 am
SOF
- SEA
2 stops18h 12m
Lufthansa
Deal found 4/20![Lufthansa logo]()
$759
Best flights from Seattle to SofiaDiscover carefully curated flight deals from Seattle to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated เมษายน 25, 2026.
Discover carefully curated flight deals from Seattle to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated เมษายน 25, 2026.
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 8/116:50 pm
SEA
- SOF
1 stop18h 25m
United Airlines
อ. 9/86:10 am
SOF
- SEA
1 stop20h 49m
United Airlines
Deal found 4/23![United Airlines logo]()
$767
This Justfly.com deal was found by Cheapflights users on 4/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 8/177:00 am
SEA
- SOF
2 stops20h 25m
Lufthansa
พฤ. 8/276:10 am
SOF
- SEA
1 stop20h 49m
Lufthansa
Deal found 4/24![Lufthansa logo]()
$776
This Turkish Airlines deal was found by Cheapflights users on 4/20. 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.
พฤ. 10/157:10 pm
SEA
- SOF
1 stop33h 50m
Turkish Airlines
จ. 10/199:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$817
This KLM deal was found by Cheapflights users on 4/23. 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.
ส. 8/85:45 pm
SEA
- SOF
1 stop34h 15m
KLM
พ. 9/97:00 am
SOF
- SEA
2 stops22h 33m
KLM
Deal found 4/23![KLM logo]()
$858
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 8/910:29 am
SEA
- SOF
2 stops26h 46m
United Airlines
พ. 9/96:10 am
SOF
- SEA
2 stops24h 33m
United Airlines
Deal found 4/23![United Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 8/2210:47 pm
SEA
- SOF
2 stops26h 13m
United Airlines
ศ. 9/186:20 am
SOF
- SEA
2 stops22h 12m
United Airlines
Deal found 4/23![United Airlines logo]()
$783
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 8/266:50 pm
SEA
- SOF
1 stop13h 50m
United Airlines
จ. 9/142:20 pm
SOF
- SEA
1 stop31h 35m
United Airlines
Deal found 4/23![United Airlines logo]()
$787
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 10/36:15 pm
SEA
- SOF
2 stops43h 00m
United Airlines
อ. 10/276:10 am
SOF
- SEA
3 stops26h 11m
United Airlines
Deal found 4/22![United Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 10/156:50 pm
SEA
- SOF
1 stop13h 50m
United Airlines
จ. 10/192:20 pm
SOF
- SEA
2 stops34h 02m
United Airlines
Deal found 4/23![United Airlines logo]()
$837
This United Airlines deal was found by Cheapflights users on 4/24. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 9/115:00 pm
SEA
- SOF
2 stops32h 00m
United Airlines
พฤ. 9/246:30 am
SOF
- SEA
2 stops17h 52m
United Airlines
Deal found 4/24![United Airlines logo]()
$845
Last-minute flights from Seattle to SofiaDiscover last-minute flight deals from Seattle to Sofia. Data last updated เมษายน 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Sofia. Data last updated เมษายน 25, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/21. 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.
พฤ. 4/237:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
พฤ. 5/289:35 am
SOF
- SEA
1 stop17h 40m
Turkish Airlines
Deal found 4/21![Turkish Airlines logo]()
$684
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/267:10 pm
SEA
- SOF
1 stop27h 35m
Turkish Airlines
อ. 5/129:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$688
This United Airlines deal was found by Cheapflights users on 4/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/266:50 pm
SEA
- SOF
1 stop18h 25m
United Airlines
อ. 5/126:10 am
SOF
- SEA
2 stops18h 10m
United Airlines
Deal found 4/23![United Airlines logo]()
$898
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/262:39 pm
SEA
- SOF
2 stops18h 01m
Lufthansa
อ. 5/126:10 am
SOF
- SEA
2 stops26h 30m
Lufthansa
Deal found 4/22![Lufthansa logo]()
$901
This oojo deal was found by Cheapflights users on 4/24. 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.
จ. 4/277:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
อ. 5/129:35 am
SOF
- SEA
2 stops21h 31m
Turkish Airlines
Deal found 4/24![Turkish Airlines logo]()
$864
This oojo deal was found by Cheapflights users on 4/23. 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.
อ. 4/287:10 pm
SEA
- SOF
1 stop27h 35m
Turkish Airlines
อ. 6/29:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$772
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/287:10 pm
SEA
- SOF
1 stop27h 35m
Turkish Airlines
อ. 5/269:05 pm
SOF
- SEA
1 stop30h 10m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$774
One-way flights from Seattle to SofiaSearch for one-way flight options from Seattle to Sofia. Find affordable one-way fares based on user searches. Data last updated เมษายน 25, 2026.
Search for one-way flight options from Seattle to Sofia. Find affordable one-way fares based on user searches. Data last updated เมษายน 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 5/263:40 pm
SEA
- SOF
3 stops45h 20m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 7/111:25 pm
SEA
- SOF
3 stops29h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$497
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 5/261:30 pm
SEA
- SOF
1 stop21h 00m
British Airways
Deal found 4/20![British Airways logo]()
$737
This oojo deal was found by Cheapflights users on 4/23. 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.
พ. 7/16:50 pm
SEA
- SOF
1 stop18h 25m
Lufthansa
Deal found 4/23![Lufthansa logo]()
$760
This BusinessClass deal was found by Cheapflights users on 4/24. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 5/136:50 pm
SEA
- SOF
1 stop13h 50m
Lufthansa
Deal found 4/24![Lufthansa logo]()
$1,226
This AranGrant deal was found by Cheapflights users on 4/23. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 5/138:20 pm
SEA
- SOF
1 stop31h 05m
British Airways
Deal found 4/23![British Airways logo]()
$1,284
Find 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 เมษายน 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $713 |
One-way from | $333 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $612 |
Cheapflights Fare Finder
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 เมษายน 25, 2026.
Use the filters below to find and compare flights from Seattle to Sofia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
อ. 8/11
6:50 pm-11:15 pm
1 stop18h 25m
Sofia
อ. 9/8
6:10 am-4:59 pm
1 stop20h 49m
$767
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
จ. 8/17
7:00 am-1:25 pm
2 stops20h 25m
Sofia
พฤ. 8/27
6:10 am-4:59 pm
1 stop20h 49m
$776
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
อา. 8/9
10:29 am-11:15 pm
2 stops26h 46m
Sofia
พ. 9/9
6:10 am-8:43 pm
2 stops24h 33m
$781
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
ส. 8/22
10:47 pm-11:00 am
2 stops26h 13m
Sofia
ศ. 9/18
6:20 am-6:32 pm
2 stops22h 12m
$783
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
พ. 8/26
6:50 pm-6:40 pm
1 stop13h 50m
Sofia
จ. 9/14
2:20 pm-11:55 am
1 stop31h 35m
$787
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
ส. 10/3
6:15 pm-11:15 pm
2 stops43h 00m
Sofia
อ. 10/27
6:10 am-11:21 pm
3 stops26h 11m
$803
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
พฤ. 10/15
7:10 pm-3:00 pm
1 stop33h 50m
Sofia
จ. 10/19
9:05 pm-5:15 pm
1 stop30h 10m
$817
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
พฤ. 10/15
6:50 pm-6:40 pm
1 stop13h 50m
Sofia
จ. 10/19
2:20 pm-2:22 pm
2 stops34h 02m
$837
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
ศ. 9/11
5:00 pm-11:00 am
2 stops32h 00m
Sofia
พฤ. 9/24
6:30 am-2:22 pm
2 stops17h 52m
$845
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
ส. 8/8
5:45 pm-2:00 pm
1 stop34h 15m
Sofia
พ. 9/9
7:00 am-7:33 pm
2 stops22h 33m
$858
Showing 1-10 of 16 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- 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.
SEA-SOF
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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Sofia
How far ahead should I book a flight from Seattle to Sofia?
The price you pay for your flight from Seattle to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 18 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to Sofia?
Currently, October is the cheapest month in which you can book a flight from Seattle to Sofia (average of $587). Flying from Seattle to Sofia in June is currently the most expensive (average of $1,128). 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.
How much does it cost to fly round-trip from Seattle to Sofia?
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 เมษายน 25, 2026.
Get a feel of what it's like to fly with KLM,Turkish Airlines, andUnited Airlines from Seattle to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Entertainment
7.1
Boarding
7.8
Food
7.3
Crew
8.4
Comfort
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Overall
7.8
Entertainment
7.1
Boarding
7.8
Food
7.3
Crew
8.4
Comfort
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Overall
7.8
Entertainment
7.1
Boarding
7.8
Food
7.3
Crew
8.4
Comfort
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Overall
7.8
Entertainment
7.1
Boarding
7.8
Food
7.3
Crew
8.4
Comfort
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Overall
7.8
Entertainment
7.1
Boarding
7.8
Food
7.3
Crew
8.4
Comfort
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Related info for your journey
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Seattle and Sofia flights
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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 เมษายน 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$908 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$541 | Average$898 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$580 | Average$747 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$620 | Average$830 | FlexibilityNo cancel fee | On-time69% |