Cheap flights from Seattle to Sofia from $326 SEA → SOF
Seattle-Tacoma International Airport (SEA) → Sofia Airport (SOF)
The cheapest one-way found recently is $326 with Icelandair, 1 Sept 2027, found today.
- Cheapest one-way found recently
- $326, found today
- Cheapest month to fly
- September 2027, one-way fares from $326 found in the last 7 days
One-way
The cheapest one-way fare on each of 3 departure dates is usually $339 to $410.
Cheapest one-way found recently
$326
1 Sept 2027 · Icelandair
Seattle-Tacoma International Airport (SEA) → Sofia Airport (SOF)
Leaves 11:25 p.m. · 41 h 30 min trip
2 stops
found today
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$326 1 Sept 2027found todayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
On 12 Nov, the cheapest one-way we saw was $352.
At $326, the cheapest one-way found recently is below that range.
One day is a short history, so treat this as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 1 May 2027 to 1 Sept 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 1 Sept 2027 to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 May 2027 | $352 | United Airlines | Seattle-Tacoma International Airport (SEA) → Sofia Airport (SOF) | 2 stops | found yesterday | Open this trip |
| 22 Jul 2027 | $468 | Discover Airlines | Seattle-Tacoma International Airport (SEA) → Sofia Airport (SOF) | 1 stop | found yesterday | Open this trip |
| 1 Sept 2027 | $326 | Icelandair | Seattle-Tacoma International Airport (SEA) → Sofia Airport (SOF) | 2 stops | found today | Open this trip |
Which month looks cheapest?
September 2027 is the cheapest month — from $326.
Airlines on the cheapest dates: United Airlines, Discover Airlines, Icelandair.
Premium cabin fares from Seattle to Sofia
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Sept 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Sofia?
One-way
Not enough history yet: we have one day of one-way prices, 12 Nov, and compare booking times once 3 booking ranges have 7 days each.
Live price for these dates
The cheapest one-way found recently is for 1 Sept 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Seattle to Sofia?
The cheapest one-way found recently is $326 with Icelandair, 1 Sept 2027, found today. The cheapest one-way fare on each of 3 departure dates is usually $339 to $410.
What is the cheapest month to fly from Seattle to Sofia?
September 2027 is the cheapest month for a one-way, from $326, 1 Sept 2027, found today.
How long is the flight from Seattle to Sofia?
The cheapest one-way found recently, with Icelandair on 1 Sept 2027, takes 41 h 30 min with 2 stops.
Which airlines have the cheapest flights from Seattle to Sofia?
Between 1 May 2027 and 1 Sept 2027, United Airlines has the cheapest one-way on 1 of the 3 departure dates we hold, Discover Airlines on 1 and Icelandair on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work