$243+ Cheap flights from San Francisco (SFO) to Bulgaria
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
Feb 28 — Mar 71
1 adult, Economy
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Find cheap flights from San Francisco to Bulgaria with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Bulgaria
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Cheapest flights from San Francisco to BulgariaExplore the most affordable flight options available from San Francisco to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from San Francisco to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:05 pm
SFO
- SOF
1 stop16h 05m
Multiple Airlines
Wed 5/136:20 am
SOF
- SFO
2 stops24h 46m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$502
This Mytrip deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
SFO
- SOF
2 stops17h 40m
Multiple Airlines
Tue 5/126:10 am
SOF
- SFO
2 stops19h 12m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$510
This CrystalTravel deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:05 pm
SFO
- SOF
1 stop16h 05m
Lufthansa
Wed 5/136:20 am
SOF
- SFO
1 stop16h 20m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$511
This CrystalTravel deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 pm
SFO
- SOF
1 stop16h 05m
Lufthansa
Tue 5/126:10 am
SOF
- SFO
1 stop16h 30m
Lufthansa
Deal found 1/27![Lufthansa logo]()
$515
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:35 pm
SFO
- SOF
1 stop34h 50m
British Airways
Mon 5/48:10 pm
SOF
- SFO
1 stop27h 40m
British Airways
Deal found 1/28![British Airways logo]()
$527
This Lufthansa deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 pm
SFO
- SOF
1 stop16h 05m
Lufthansa
Thu 5/76:30 am
SOF
- SFO
1 stop16h 10m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$529
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:10 am
SFO
- SOF
2 stops27h 00m
United Airlines
Fri 5/16:20 am
SOF
- SFO
1 stop23h 40m
United Airlines
Deal found 1/28![United Airlines logo]()
$533
This Air Canada deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
SFO
- SOF
2 stops17h 40m
Air Canada
Thu 5/76:30 am
SOF
- SFO
2 stops42h 52m
Air Canada
Deal found 1/28![Air Canada logo]()
$537
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Fri 5/16:20 am
SOF
- SFO
2 stops22h 18m
United Airlines
Deal found 1/28![United Airlines logo]()
$539
This Air Canada deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:30 pm
SFO
- SOF
2 stops32h 05m
Air Canada
Fri 5/86:20 am
SOF
- SFO
2 stops19h 02m
Air Canada
Deal found 1/28![Air Canada logo]()
$541
This KAYAK deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:05 pm
SFO
- BOJ
2 stops32h 10m
Austrian Airlines
Tue 10/61:05 pm
BOJ
- SFO
2 stops33h 35m
Austrian Airlines
Deal found 1/29![Austrian Airlines logo]()
$602
This KAYAK deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:05 pm
SFO
- BOJ
2 stops29h 15m
Austrian Airlines
Tue 10/61:05 pm
BOJ
- SFO
2 stops33h 35m
Austrian Airlines
Deal found 1/29![Austrian Airlines logo]()
$619
Best flights from San Francisco to BulgariaDiscover carefully curated flight deals from San Francisco to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.
Discover carefully curated flight deals from San Francisco to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Tue 5/56:10 am
SOF
- SFO
2 stops19h 12m
United Airlines
Deal found 1/28![United Airlines logo]()
$529
This CrystalTravel deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:05 pm
SFO
- SOF
1 stop16h 05m
Lufthansa
Thu 5/146:30 am
SOF
- SFO
1 stop16h 10m
Lufthansa
Deal found 1/29![Lufthansa logo]()
$573
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:25 am
SFO
- VAR
2 stops20h 50m
Austrian Airlines
Sat 2/284:00 pm
VAR
- SFO
2 stops37h 25m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/151:10 pm
SFO
- VAR
1 stop21h 25m
Turkish Airlines
Mon 3/29:25 pm
VAR
- SFO
1 stop23h 40m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$675
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:10 am
SFO
- SOF
2 stops27h 00m
United Airlines
Fri 5/16:20 am
SOF
- SFO
2 stops26h 18m
United Airlines
Deal found 1/28![United Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:10 am
SFO
- SOF
2 stops27h 00m
United Airlines
Wed 5/61:50 pm
SOF
- SFO
2 stops20h 40m
United Airlines
Deal found 1/28![United Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:45 am
SFO
- SOF
2 stops26h 20m
United Airlines
Thu 4/306:30 am
SOF
- SFO
1 stop16h 10m
United Airlines
Deal found 1/28![United Airlines logo]()
$546
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:25 am
SFO
- VAR
2 stops20h 50m
Austrian Airlines
Tue 3/34:00 pm
VAR
- SFO
2 stops37h 25m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/151:10 pm
SFO
- VAR
1 stop21h 25m
Turkish Airlines
Sat 2/289:25 pm
VAR
- SFO
1 stop23h 40m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$675
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/119:25 pm
SFO
- VAR
2 stops31h 50m
Lufthansa
Sun 3/16:40 pm
VAR
- SFO
1 stop28h 00m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$676
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Tue 10/66:10 am
SOF
- SFO
2 stops22h 28m
United Airlines
Deal found 1/28![United Airlines logo]()
$546
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/151:10 pm
SFO
- VAR
1 stop21h 25m
Turkish Airlines
Tue 3/310:00 am
VAR
- SFO
1 stop16h 45m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Thu 5/286:30 am
SOF
- SFO
1 stop16h 10m
United Airlines
Deal found 1/27![United Airlines logo]()
$563
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:25 pm
SFO
- VAR
2 stops35h 50m
Austrian Airlines
Wed 3/44:00 pm
VAR
- SFO
2 stops39h 39m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$762
This Turkish Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:55 pm
SFO
- VAR
1 stop33h 50m
Turkish Airlines
Mon 4/273:35 am
VAR
- SFO
1 stop23h 05m
Turkish Airlines
Deal found 1/27![Turkish Airlines logo]()
$695
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1412:50 pm
SFO
- VAR
2 stops40h 25m
Austrian Airlines
Sun 3/14:00 pm
VAR
- SFO
2 stops37h 25m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$764
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Sun 5/36:20 am
SOF
- SFO
1 stop16h 20m
United Airlines
Deal found 1/28![United Airlines logo]()
$575
This Ovago deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/151:10 pm
SFO
- VAR
1 stop21h 25m
Turkish Airlines
Wed 3/410:00 am
VAR
- SFO
1 stop16h 45m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Fri 5/812:55 pm
SOF
- SFO
1 stop16h 05m
United Airlines
Deal found 1/28![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Thu 5/712:55 pm
SOF
- SFO
1 stop16h 05m
United Airlines
Deal found 1/28![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Wed 5/612:55 pm
SOF
- SFO
1 stop16h 05m
United Airlines
Deal found 1/28![United Airlines logo]()
$577
Last-minute flights from San Francisco to BulgariaDiscover last-minute flight deals from San Francisco to Bulgaria. Data last updated January 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Bulgaria. Data last updated January 29, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:25 am
SFO
- VAR
2 stops20h 50m
Austrian Airlines
Mon 3/24:00 pm
VAR
- SFO
2 stops39h 39m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$670
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:25 am
SFO
- VAR
2 stops20h 50m
Austrian Airlines
Tue 3/34:00 pm
VAR
- SFO
2 stops37h 25m
Austrian Airlines
Deal found 1/28![Austrian Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/189:25 pm
SFO
- SOF
1 stop15h 20m
Lufthansa
Wed 3/46:10 am
SOF
- SFO
1 stop16h 30m
Lufthansa
Deal found 1/27![Lufthansa logo]()
$576
This Mytrip deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:25 am
SFO
- SOF
2 stops23h 55m
Multiple Airlines
Wed 3/46:10 am
SOF
- SFO
1 stop16h 30m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$603
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:25 pm
SFO
- SOF
1 stop15h 20m
Lufthansa
Thu 3/56:00 am
SOF
- SFO
1 stop16h 40m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$578
This Gotogate deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:25 pm
SFO
- SOF
1 stop15h 20m
Multiple Airlines
Thu 3/52:35 pm
SOF
- SFO
2 stops30h 19m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$600
This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:50 pm
SFO
- SOF
1 stop34h 20m
Turkish Airlines
Thu 3/59:40 pm
SOF
- SFO
1 stop29h 05m
Turkish Airlines
Deal found 1/28![Turkish Airlines logo]()
$601
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/219:25 pm
SFO
- SOF
1 stop15h 20m
Lufthansa
Sat 2/287:05 pm
SOF
- SFO
1 stop27h 35m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$599
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:40 pm
SFO
- SOF
2 stops17h 20m
Multiple Airlines
Sat 2/287:05 pm
SOF
- SFO
1 stop27h 35m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$624
This CrystalTravel deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:25 pm
SFO
- SOF
1 stop15h 20m
Lufthansa
Fri 3/66:10 am
SOF
- SFO
1 stop16h 30m
Lufthansa
Deal found 1/28![Lufthansa logo]()
$588
This Gotogate deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:25 pm
SFO
- SOF
1 stop15h 20m
Multiple Airlines
Fri 3/66:10 am
SOF
- SFO
2 stops25h 12m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$605
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2811:20 pm
SFO
- SOF
2 stops27h 40m
United Airlines
Sat 3/146:25 am
SOF
- SFO
1 stop23h 45m
United Airlines
Deal found 1/27![United Airlines logo]()
$609
One-way flights from San Francisco to BulgariaSearch for one-way flight options from San Francisco to Bulgaria. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.
Search for one-way flight options from San Francisco to Bulgaria. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:05 pm
SFO
- SOF
2 stops32h 15m
Austrian Airlines
Deal found 1/29![Austrian Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:35 pm
SFO
- SOF
1 stop30h 40m
SWISS
Deal found 1/29![SWISS logo]()
$244
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Deal found 1/29![United Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:05 pm
SFO
- SOF
2 stops16h 50m
Austrian Airlines
Deal found 1/29![Austrian Airlines logo]()
$246
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:55 pm
SFO
- SOF
2 stops27h 15m
United Airlines
Deal found 1/28![United Airlines logo]()
$249
This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:35 pm
SFO
- SOF
1 stop16h 45m
British Airways
Deal found 1/28![British Airways logo]()
$250
This FlightHub deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:05 pm
SFO
- SOF
1 stop16h 05m
Lufthansa
Deal found 1/29![Lufthansa logo]()
$257
This FlightHub deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SFO
- SOF
1 stop30h 40m
SWISS
Deal found 1/28![SWISS logo]()
$258
This Air France deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:10 pm
SFO
- SOF
1 stop31h 50m
Air France
Deal found 1/27![Air France logo]()
$259
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:05 pm
SFO
- SOF
1 stop16h 05m
United Airlines
Deal found 1/28![United Airlines logo]()
$262
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:31 am
SFO
- SOF
2 stops17h 29m
KLM
Deal found 1/26![KLM logo]()
$267
Find flight deals from San Francisco to Bulgaria
Keep the following information in mind while searching for San Francisco to Bulgaria flight deals. Data was last updated January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $502 (Mytrip) |
One-way from | $243 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $662 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Bulgaria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from San Francisco to Bulgaria that are best for you.
Fly from
San Francisco
Fly to
Bulgaria
Route
Depart
Return
Price
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Tue 4/28
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Tue 5/5
6:10 am-3:22 pm
2 stops19h 12m
$529
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Wed 4/29
10:10 am-11:10 pm
2 stops27h 00m
Sofia
Fri 5/1
6:20 am-10:38 pm
2 stops26h 18m
$543
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Wed 4/29
10:10 am-11:10 pm
2 stops27h 00m
Sofia
Wed 5/6
1:50 pm-12:30 am
2 stops20h 40m
$543
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Mon 4/27
12:45 am-1:05 pm
2 stops26h 20m
Sofia
Thu 4/30
6:30 am-12:40 pm
1 stop16h 10m
$546
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Wed 4/29
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Tue 10/6
6:10 am-6:38 pm
2 stops22h 28m
$546
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Sun 5/17
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Thu 5/28
6:30 am-12:40 pm
1 stop16h 10m
$563
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Thu 4/30
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Thu 5/14
6:30 am-12:40 pm
1 stop16h 10m
$573
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Wed 4/29
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Sun 5/3
6:20 am-12:40 pm
1 stop16h 20m
$575
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Thu 4/30
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Fri 5/8
12:55 pm-7:00 pm
1 stop16h 05m
$577
San FranciscoSofia
SFO - SOF
SFOSOF
San Francisco
Thu 4/30
9:05 pm-11:10 pm
1 stop16h 05m
Sofia
Thu 5/7
12:55 pm-7:00 pm
1 stop16h 05m
$577
Showing 1-10 of 29 results
Best time to book a flight from San Francisco to Bulgaria
Have a flexible travel schedule? Discover the best time to fly to Bulgaria from San Francisco with our price prediction graph.
SFO-SOF
SFO-VAR
SFO-BOJ
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Bulgaria
SFO-BG0
SFO-SOF
SFO-VAR
SFO-BOJ
What is the cheapest month to book a flight from San Francisco to Bulgaria?
Currently, August is the cheapest month in which you can book a flight from San Francisco to Bulgaria (average of $439). Flying from San Francisco to Bulgaria in June is currently the most expensive (average of $814). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Bulgaria
Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated January 29, 2026.
Get a feel of what it's like to fly with United Airlines, Turkish Airlines, and Lufthansa from San Francisco to Bulgaria by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for San Francisco to Bulgaria
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from San Francisco to Bulgaria
Discover the top 6 airlines that operate flights from San Francisco to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$542 | Average$1,169 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$563 | Average$862 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$594 | Average$770 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$614 | Average$920 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$651 | Average$1,084 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$771 | Average$1,133 | FlexibilityNo cancel fee | On-time67% |