Newark (EWR) to Sofia (SOF) cheap flight deal from $399 USD in economy class

OSAustrian Airlines

Round Trip•Economy

EWR

Newark Liberty Airport

Newark, United States

SOF

Sofia Airport

Sofia, Bulgaria

$595 USD

-33%$399 USD

Verified Sep 21, 2025 at 5:53 PM

October 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$449 30$449 1$449 2$509 3$664 4$534 5$665 6$474 7$449 8$449 9$574 10$608 11$665 12$615 13$449 14$449 15$449 16$499 17$602 18$602 19$593 20$424 21$470 22$489 23$449 24$449 25$484 26$489 27$399 28$399 29$399 30$571 31$774 1 2

Fair Availability

20% of dates checked are available within 10% of the lowest price

Friday, October 17th, 2025

10 round-trip options

Returning

Wed, Oct 22, 2025•5 Day Trip

$742 USD

Google Flights

Returning

Thu, Oct 23, 2025•6 Day Trip

$961 USD

Google Flights

Returning

Fri, Oct 24, 2025•7 Day Trip

$959 USD

Google Flights

Returning

Sat, Oct 25, 2025•8 Day Trip

$1,238 USD

Google Flights

Returning

Sun, Oct 26, 2025•9 Day Trip

$824 USD

Google Flights

Returning

Mon, Oct 27, 2025•10 Day Trip

$627 USD

Google Flights

Returning

Tue, Oct 28, 2025•11 Day Trip

$627 USD

Google Flights

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Wed, Oct 29, 2025•12 Day Trip

$698 USD

Google Flights

Returning

Thu, Oct 30, 2025•13 Day Trip

$627 USD

Google Flights

Returning

Fri, Oct 31, 2025•14 Day Trip

$602 USD

Google Flights