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Sofia

$891+ Cheap flights from Boise (BOI) to Sofia (SOF)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SOF
May 11 — May 181
Mon 5/11
Mon 5/18
1 adult, Economy
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Cheap flight deals from Boise to Sofia

Cheapest flights from Boise to Sofia
Explore the most affordable flight options available from Boise to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2026.

This United Airlines deal was found by Cheapflights users on 4/8. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am
BOI
-
SOF
2 stops31h 45m
United Airlines
Tue 11/246:10 am
SOF
-
BOI
2 stops24h 05m
United Airlines
Deal found 4/8$891
This United Airlines deal was found by Cheapflights users on 4/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:03 pm
BOI
-
SOF
2 stops19h 12m
United Airlines
Wed 4/156:10 am
SOF
-
BOI
2 stops24h 12m
United Airlines
Deal found 4/6$915
This KAYAK deal was found by Cheapflights users on 4/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:35 am
BOI
-
SOF
2 stops27h 40m
Lufthansa
Wed 4/156:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$920
This KAYAK deal was found by Cheapflights users on 4/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:37 pm
BOI
-
SOF
2 stops23h 13m
Lufthansa
Wed 4/156:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$932
This Justfly.com deal was found by Cheapflights users on 4/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:37 pm
BOI
-
SOF
2 stops18h 28m
Lufthansa
Sun 4/126:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$964
This United Airlines deal was found by Cheapflights users on 4/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:03 pm
BOI
-
SOF
2 stops19h 12m
United Airlines
Sun 4/126:10 am
SOF
-
BOI
2 stops25h 25m
United Airlines
Deal found 4/6$965
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/83:01 pm
BOI
-
SOF
2 stops37h 59m
KLM
Mon 4/137:00 am
SOF
-
BOI
2 stops18h 14m
KLM
Deal found 4/6$966
This KAYAK deal was found by Cheapflights users on 4/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:35 am
BOI
-
SOF
2 stops27h 40m
Lufthansa
Sun 4/126:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$970
This KAYAK deal was found by Cheapflights users on 4/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:20 am
BOI
-
SOF
2 stops20h 00m
Lufthansa
Tue 4/146:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$982
This Justfly.com deal was found by Cheapflights users on 4/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:20 am
BOI
-
SOF
2 stops20h 00m
Lufthansa
Sun 4/126:10 am
SOF
-
BOI
2 stops24h 12m
Lufthansa
Deal found 4/6$1,014
This United Airlines deal was found by Cheapflights users on 4/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:03 pm
BOI
-
SOF
2 stops19h 12m
United Airlines
Wed 4/156:10 am
SOF
-
BOI
2 stops22h 43m
United Airlines
Deal found 4/6$1,015
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:01 pm
BOI
-
SOF
2 stops37h 59m
KLM
Mon 4/137:00 am
SOF
-
BOI
2 stops22h 29m
KLM
Deal found 4/6$1,016

Find flight deals from Boise to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$891
(United Airlines)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Sofia flights.
Search Deals
From Boise Air Term. Gowen Fld to Sofia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Sofia 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 April 11, 2026.
Use the filters below to find and compare flights from Boise to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BoiseSofia

BOI - SOF

BOISOF

Boise Air Term. Gowen Fld

Wed 9/16

6:30 am-11:15 pm

2 stops31h 45m

Sofia

Tue 11/24

6:10 am-9:15 pm

2 stops24h 05m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Sorted by cheapest first

Compare providers for flights from Boise to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Sofia in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Boise with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Boise to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boise to Sofia?

    A quick flight from Boise to Sofia can take about 31h 45m. United Airlines provides one of the quickest options available for as low as $891. The distance from Boise to Sofia is about 5970 mi.

  • Can I find deals for flights from Boise to Sofia that include hotel bookings?

    Yes. In addition to deals on Boise to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Sofia.

  • Can I find deals for business class flights from Boise to Sofia?

    Yes. Cheapflights offers flight deals from Boise to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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