Seattle (SEA) → Sofia (SOF)
About Seattle to Sofia Flights
Discover the best flights from Seattle to Sofia, covering 9,440 km in approximately 12h 18m. Seattle (SEA) to Sofia (SOF) is one of the major long-haul routes connecting United States and Bulgaria. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Seattle to Sofia.
12-Month Price History
Flight prices from Seattle to Sofia vary significantly throughout the year. February typically offers the best deals with average prices around $1708, while July sees the highest prices, averaging $2883. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
180 days
For best prices
Booking Tips
For the best prices on Seattle to Sofia flights, we recommend booking 171 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
Bulgaria Air FB | $2420 | $9330 | $12610 |
Alaska Airlines AS | $2530 | $9450 | $12580 |
Delta Air Lines DL | $2590 | $10640 | $16410 |
United Airlines UA | $2810 | $9250 | $13000 |
Air France AF | $2820 | $8710 | $17030 |
British Airways BA | $2870 | $10710 | $14630 |
American Airlines AA | $2900 | $10660 | $15350 |
Bulgaria Air
FB
Economy
$2420
Business
$9330
First
$12610
Alaska Airlines
AS
Economy
$2530
Business
$9450
First
$12580
Delta Air Lines
DL
Economy
$2590
Business
$10640
First
$16410
United Airlines
UA
Economy
$2810
Business
$9250
First
$13000
Air France
AF
Economy
$2820
Business
$8710
First
$17030
British Airways
BA
Economy
$2870
Business
$10710
First
$14630
American Airlines
AA
Economy
$2900
Business
$10660
First
$15350
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Seattle → Skopje
Seattle-Tacoma International (SEA) to Skopje International (SKP)
Distance: 9,458 km
Average price: $1974
Seattle → Pristina
Seattle-Tacoma International (SEA) to Pristina International (PRN)
Distance: 9,377 km
Average price: $1959
Seattle → Skopje
Seattle-Tacoma International (SEA) to Skopje (SKP)
Distance: 9,458 km
Average price: $1974
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Frequently Asked Questions
How long is the flight from Seattle to Sofia?
The flight time from Seattle (SEA) to Sofia (SOF) is approximately 12 hours and 18 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Seattle and Sofia?
The aerial distance between Seattle and Sofia is 9,440 kilometers (5,866 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Seattle to Sofia?
Several airlines operate flights between Seattle and Sofia, including Delta Air Lines, Alaska Airlines, Bulgaria Air and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Seattle to Sofia?
Based on historical data, February typically offers the lowest airfares for flights from Seattle to Sofia. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Sofia?
For the best prices on Seattle to Sofia flights, we recommend booking 173 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Seattle to Sofia?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Bulgaria should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Seattle and Sofia?
Seattle operates on America/Los_Angeles time zone, while Sofia is in the Europe/Sofia time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.