$314+ Cheap flights from Boston (BOS) to Bulgaria
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOF
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Bulgaria with Cheapflights
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Cheapest flights from Boston to BulgariaExplore the most affordable flight options available from Boston to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Boston to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:50 pm -
2 stops21h 30m
Sat 10/3112:15 pm -
2 stops36h 35m
Deal found 9/7![Multiple Airlines logo]()
$740
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:50 pm -
1 stop16h 35m
Tue 10/2710:05 am -
1 stop15h 00m
Deal found 9/7![Turkish Airlines logo]()
$766
This FlightHub deal was found by Cheapflights users on 9/8. 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 10/119:50 pm -
1 stop27h 40m
Wed 10/2110:15 pm -
1 stop28h 40m
Deal found 9/8![Turkish Airlines logo]()
$783
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Sun 10/118:50 pm -
2 stops20h 25m
Sun 10/2510:00 pm -
3 stops29h 28m
Deal found 9/9![Multiple Airlines logo]()
$822
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2410:20 pm -
1 stop29h 55m
Sat 10/312:15 pm -
2 stops35h 50m
Deal found 9/9![Multiple Airlines logo]()
$824
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/1811:35 pm -
1 stop19h 00m
Sat 10/246:45 pm -
2 stops27h 55m
Deal found 9/8![Multiple Airlines logo]()
$825
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:00 pm -
2 stops16h 50m
Tue 11/177:55 am -
2 stops16h 32m
Deal found 9/9![Austrian Airlines logo]()
$826
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:50 pm -
1 stop27h 40m
Sat 10/319:25 pm -
1 stop28h 40m
Deal found 9/7![Turkish Airlines logo]()
$827
This FlightHub deal was found by Cheapflights users on 9/9. 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 10/119:55 pm -
1 stop14h 25m
Sun 10/257:45 pm -
1 stop33h 05m
Deal found 9/9![British Airways logo]()
$827
This Justfly.com deal was found by Cheapflights users on 9/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:00 pm -
1 stop29h 15m
Sat 11/1410:05 am -
1 stop15h 00m
Deal found 9/5![Turkish Airlines logo]()
$832
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 10/189:50 pm -
1 stop15h 30m
Tue 10/279:40 am -
1 stop15h 25m
Deal found 9/8![Turkish Airlines logo]()
$832
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Mon 9/285:40 pm -
3 stops22h 35m
Mon 10/1211:45 am -
2 stops34h 50m
Deal found 9/6![Multiple Airlines logo]()
$835
Best flights from Boston to BulgariaDiscover carefully curated flight deals from Boston to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Boston to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:50 pm -
1 stop27h 40m
Sat 10/319:25 pm -
1 stop28h 40m
Deal found 9/7![Turkish Airlines logo]()
$827
This United Airlines deal was found by Cheapflights users on 9/5. 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 11/312:00 pm -
2 stops18h 15m
Tue 11/177:55 am -
2 stops21h 04m
Deal found 9/5![United Airlines logo]()
$837
This Finnair deal was found by Cheapflights users on 9/8. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/276:59 pm -
2 stops38h 21m
Sun 3/77:45 pm -
1 stop25h 35m
Deal found 9/8![Multiple Airlines logo]()
$865
This Gotogate deal was found by Cheapflights users on 9/7. 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.
Wed 9/235:10 pm -
1 stop15h 05m
Sun 9/271:05 pm -
1 stop31h 45m
Deal found 9/7![Austrian Airlines logo]()
$978
This United Airlines deal was found by Cheapflights users on 9/7. 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 1/124:54 pm -
2 stops23h 01m
Tue 1/262:00 pm -
2 stops14h 54m
Deal found 9/7![United Airlines logo]()
$845
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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 1/88:00 pm -
1 stop12h 10m
Tue 1/269:40 am -
1 stop15h 25m
Deal found 9/7![Turkish Airlines logo]()
$852
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:50 pm -
2 stops37h 25m
Sun 11/14:00 pm -
2 stops49h 03m
Deal found 9/8![Multiple Airlines logo]()
$903
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 1/98:00 pm -
1 stop29h 50m
Fri 1/229:40 am -
1 stop15h 25m
Deal found 9/7![Turkish Airlines logo]()
$852
This United Airlines deal was found by Cheapflights users on 9/5. 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 2/39:00 am -
3 stops21h 25m
Wed 2/177:55 am -
2 stops16h 30m
Deal found 9/5![United Airlines logo]()
$865
This Justfly.com deal was found by Cheapflights users on 9/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:45 pm -
1 stop18h 50m
Tue 10/274:00 pm -
2 stops48h 22m
Deal found 9/7![Multiple Airlines logo]()
$916
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 1/98:00 pm -
1 stop17h 55m
Thu 1/289:40 am -
1 stop15h 25m
Deal found 9/7![Turkish Airlines logo]()
$852
This United Airlines deal was found by Cheapflights users on 9/5. 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 2/277:35 pm -
2 stops34h 40m
Sun 3/77:55 am -
1 stop12h 35m
Deal found 9/5![United Airlines logo]()
$893
This Booking.com deal was found by Cheapflights users on 9/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:15 pm -
2 stops16h 10m
Wed 10/149:50 am -
3 stops35h 55m
Deal found 9/7![Multiple Airlines logo]()
$926
This Turkish Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/249:00 pm -
1 stop29h 50m
Sat 10/319:40 am -
1 stop15h 25m
Deal found 9/9![Turkish Airlines logo]()
$882
This United deal was found by Cheapflights users on 9/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:38 am -
2 stops24h 37m
Sat 10/314:00 pm -
2 stops33h 35m
Deal found 9/7![Multiple Airlines logo]()
$930
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 10/189:50 pm -
1 stop15h 30m
Sun 10/259:40 am -
1 stop15h 25m
Deal found 9/8![Turkish Airlines logo]()
$892
This Orbitz deal was found by Cheapflights users on 9/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am -
2 stops26h 15m
Sun 11/14:00 pm -
2 stops34h 02m
Deal found 9/8![Multiple Airlines logo]()
$946
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Fri 10/168:05 pm -
2 stops36h 10m
Mon 10/264:00 pm -
2 stops32h 57m
Deal found 9/5![Multiple Airlines logo]()
$954
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 12/68:00 pm -
1 stop30h 15m
Thu 12/109:25 pm -
1 stop27h 40m
Deal found 9/8![Turkish Airlines logo]()
$973
This United deal was found by Cheapflights users on 9/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:38 am -
2 stops24h 37m
Sat 10/314:00 pm -
2 stops33h 35m
Deal found 9/8![Multiple Airlines logo]()
$968
This United deal was found by Cheapflights users on 9/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:10 pm -
1 stop15h 05m
Sun 9/271:05 pm -
2 stops33h 35m
Deal found 9/7![Multiple Airlines logo]()
$1,034
Last-minute flights from Boston to BulgariaDiscover last-minute flight deals from Boston to Bulgaria. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Bulgaria. Data last updated September 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Mon 9/285:40 pm -
3 stops22h 35m
Mon 10/1211:45 am -
2 stops34h 50m
Deal found 9/6![Multiple Airlines logo]()
$835
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/3010:55 pm -
1 stop30h 20m
Sun 10/411:10 am -
2 stops17h 35m
Deal found 9/6![Multiple Airlines logo]()
$837
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:50 pm -
1 stop16h 35m
Tue 10/2710:05 am -
1 stop15h 00m
Deal found 9/7![Turkish Airlines logo]()
$766
This FlightHub deal was found by Cheapflights users on 9/8. 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 10/119:50 pm -
1 stop27h 40m
Wed 10/2110:15 pm -
1 stop28h 40m
Deal found 9/8![Turkish Airlines logo]()
$783
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Sun 10/118:50 pm -
2 stops20h 25m
Sun 10/2510:00 pm -
3 stops29h 28m
Deal found 9/9![Multiple Airlines logo]()
$822
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:50 pm -
1 stop27h 40m
Sat 10/319:25 pm -
1 stop28h 40m
Deal found 9/7![Turkish Airlines logo]()
$827
This FlightHub deal was found by Cheapflights users on 9/9. 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 10/119:55 pm -
1 stop14h 25m
Sun 10/257:45 pm -
1 stop33h 05m
Deal found 9/9![British Airways logo]()
$827
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:50 pm -
2 stops21h 30m
Sat 10/3112:15 pm -
2 stops36h 35m
Deal found 9/7![Multiple Airlines logo]()
$740
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/1811:35 pm -
1 stop19h 00m
Sat 10/246:45 pm -
2 stops27h 55m
Deal found 9/8![Multiple Airlines logo]()
$825
This Turkish Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 10/189:50 pm -
1 stop15h 30m
Thu 10/299:40 am -
1 stop15h 25m
Deal found 9/8![Turkish Airlines logo]()
$832
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2410:20 pm -
1 stop29h 55m
Sat 10/312:15 pm -
2 stops35h 50m
Deal found 9/9![Multiple Airlines logo]()
$824
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/318:35 pm -
1 stop31h 40m
Sat 11/1410:10 pm -
2 stops23h 30m
Deal found 9/7![Multiple Airlines logo]()
$840
One-way flights from Boston to BulgariaSearch for one-way flight options from Boston to Bulgaria. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Boston to Bulgaria. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/38:50 pm -
3 stops36h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$314
This Mytrip deal was found by Cheapflights users on 9/5. 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 10/208:50 pm -
2 stops19h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/27:50 pm -
3 stops40h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 9/1811:00 pm -
2 stops27h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$345
This Ovago deal was found by Cheapflights users on 9/7. 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.
Tue 11/38:00 pm -
1 stop19h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/1911:00 pm -
3 stops50h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$359
Find flight deals from Boston to Bulgaria
Keep the following information in mind while searching for Boston to Bulgaria flight deals. Data was last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $740 (Trip.com) |
One-way from | $314 (Kiwi.com) |
Popular in | May |
Cheapest in | February |
Average price | $872 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Boston to Bulgaria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Sat 10/3
8:50 pm-3:55 pm
3 stops36h 05m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$314
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Tue 10/20
8:50 pm-10:45 pm
3 stops18h 55m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$322
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Fri 9/18
8:50 pm-11:10 am
3 stops31h 20m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$352
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Sat 9/19
11:00 pm-8:20 am
3 stops50h 20m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$359
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Sun 9/20
11:35 pm-11:30 am
2 stops28h 55m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$365
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Fri 11/6
6:50 pm-8:50 pm
2 stops19h 00m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$374
Quickest round-trip
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Wed 11/4
9:20 pm-8:25 pm
2 stops16h 05m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$377
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Sun 11/1
6:00 pm-12:30 pm
3 stops35h 30m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$396
BostonVarna
BOS Boston Logan Intl - VAR Varna
BOSVAR
Boston Logan Intl
Sun 10/11
9:50 pm-8:30 am
1 stop27h 40m
Varna
Sat 10/31
9:25 pm-8:05 pm
1 stop28h 40m
$827
BostonSofia
BOS Boston Logan Intl - SOF Sofia
BOSSOF
Boston Logan Intl
Tue 11/3
12:00 pm-1:15 pm
2 stops18h 15m
Sofia
Tue 11/17
7:55 am-9:59 pm
2 stops21h 04m
$837
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from Boston to Bulgaria
Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Boston with our price prediction graph.
BOS-VAR
BOS-SOF
BOS-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 Boston to Bulgaria
BOS-BG0
BOS-VAR
BOS-SOF
BOS-BOJ
What is the cheapest month to book a flight from Boston to Bulgaria?
Currently, November is the cheapest month in which you can book a flight from Boston to Bulgaria (average of $456). Flying from Boston to Bulgaria in June is currently the most expensive (average of $983). 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.
How far ahead should I book a flight from Boston to Bulgaria?
Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Bulgaria. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 September 10, 2026.
See what other customers who have flown with KLM,Austrian Airlines, andTurkish Airlines from Boston to Bulgaria have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Boston to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Boston to Bulgaria
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Bulgaria by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Bulgaria by cabin class
Find flights from Boston to Bulgaria, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Bulgaria flights
Browse other Boston and Bulgaria flight options. Last updated on September 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boston to Bulgaria flights
Consider these flights traveling from Boston to Bulgaria.
Fly to Bulgaria regions
Consider these flights traveling to Bulgaria regions.
Top 9 airlines flying from Boston to Bulgaria
Discover the top 9 airlines that operate flights from Boston 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$356 | Average$566 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$380 | Average$555 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$394 | Average$767 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$394 | Average$495 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$410 | Average$762 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$415 | Average$872 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$629 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$514 | Average$766 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$694 | Average$1,034 | FlexibilityNo cancel fee | On-time81% |