
$562 Cheap United flights from Seattle to Sofia (SEA to SOF)
Find The Best Day To Fly from Seattle to Sofia
Amazing United SEA to SOF Flight Deals
The cheapest flights to Sofia found within the past 7 days were $603 round trip and $562 one way. Prices and availability subject to change. Additional terms may apply.
SEA
Seattle
SOF
Sofia
$603 Roundtrip, found 3 days ago
$603
Roundtrip
found 3 days ago
SEA
Seattle
SOF
Sofia
$607 Roundtrip, found 3 days ago
$607
Roundtrip
found 3 days ago
SEA
Seattle
SOF
Sofia
$608 Roundtrip, found 3 days ago
$608
Roundtrip
found 3 days ago
SEA
Seattle
SOF
Sofia
$657 Roundtrip, found 3 days ago
$657
Roundtrip
found 3 days ago
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Sofia

Ibis Sofia Airport
132 Mimi Balkanska Str, Sofia
A restaurant and a bar/lounge are featured at this hotel. Traveling on business? Take advantage of the free WiFi in public areas, express check-out, and free ...
8/10 Very Good! (911 reviews)
Rock out couple
"This by far is the best Ibis I’ve stayed at! Great location close to airport and free shuttle 24 hours a day! The breakfast spread is definitely out of this world! They even give you a to-go bag if you have to check out early like we did! They included a fruit and a sandwich! Will stay here ..."
Reviewed on Jul 16, 2025

Hotel Premier Sofia Airport
11 Briuksel Boulevard, Sofia
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
9/10 Wonderful! (1,001 reviews)
"My stay at hotel Premier was easy, convenient and simple. As long as you book the shuttle with the hotel they would transport you to and from the airport. The staff was also particularly helpful."
Reviewed on Jul 2, 2025

ATM Aparts Sofia
Poligona Area, Building 44, Entrance A, Sofia
This aparthotel includes free WiFi in public areas and laundry facilities.
8/10 Very Good! (70 reviews)
"Nice apartment. All fine."
Reviewed on Jun 25, 2025
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
Popular United Flight Routes from SEA
Top Flights for United originating from SEA
Domestic
- Newark Liberty Intl. Airport to Santo Domingo (EWR - SDQ)
- Atlanta to Newark Liberty Intl. Airport (ATL - EWR)
- Atlanta to Newark Liberty Intl. Airport (ATL - EWR)
- Newark Liberty Intl. Airport to Miami (EWR - MIA)
- Chicago to Orlando (ORD - MCO)
- Boston to Orlando (BOS - MCO)
- Chicago to San Juan (ORD - SJU)
- Los Angeles to Honolulu (LAX - HNL)
- Philadelphia to Orlando (PHL - MCO)
- Chicago to Orlando (ORD - MCO)
International
- Dallas to Las Vegas (DFW - LAS)
- Chicago to Las Vegas (ORD - LAS)
- San Juan to Orlando (SJU - MCO)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- Newark Liberty Intl. Airport to Miami (EWR - MIA)
- San Juan to Orlando (SJU - MCO)
- Newark Liberty Intl. Airport to Las Vegas (EWR - LAS)
- Philadelphia to San Juan (PHL - SJU)
- Newark Liberty Intl. Airport to Santiago (EWR - STI)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)