$344 Cheap Flights from Seattle (SEA) to Sofia (SOF)

You can find cheap one-way flights from $344 and cheap return flights $746 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) with Expedia. One-way flights typically cost between $476 and $4801, and return flights often range between $674 and $6368. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

October is the cheapest month to fly from Seattle, WA (SEA) to Sofia (SOF), with average return fares around $609. This price is about 36% lower than the average throughout the year, likely due to lower travel demand in the fall. Other economical months to consider are January and February.

*Averages based on flights available on Expedia in the last year.

Enter SEA to SOF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Iberia is one of the cheapest airlines offering connecting flights from Seattle - Tacoma Intl. (SEA) to Sofia (SOF), with round-trip tickets starting from around $975 with a layover in Dallas-Fort Worth Intl. (DFW). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The ideal months to fly from Seattle (SEA) to Sofia (SOF) are October and February. In October, you can find return flights for about $609, while February is also a great choice with similar pricing. These months balance affordability and pleasant travel conditions, making them perfect for your trip.

*Prices based on flights available on Expedia in the last year.

Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from SEA to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Sofia (SOF) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including United Airlines and Lufthansa, offer flights during this window. This timing is favored as it allows you to start your day early and make the most of your time in Sofia.

Flying from SEA to SOF with a connection usually takes about 14 hours 20 minutes, traveling roughly 5,867 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

You can fly business class between SEA and SOF. Airlines that offer business class service on this route include:

• American Airlines
• Turkish Airlines
• Lufthansa
• Air Canada
• Icelandair
• British Airways
• United Airlines
• Delta Air Lines
• Air France
• Emirates

First class is available with United Airlines.

It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) Sofia Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sofia (SOF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.