$735 Find Cheap Flights from Boise to Bulgaria

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Bulgaria departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Boise to Bulgaria Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Bulgaria that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Bulgaria

Tue, Mar 3 - Thu, Mar 12
Lufthansa Logo
12:16 pm - 6:20 pm
BOI
-
SOF
21h 04m
2 stops
Lufthansa Logo
6:00 am - 9:29 pm
SOF
-
BOI
23h 29m
2 stops
$735Lufthansa
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
8:05 am - 10:45 pm
BOI
-
SOF
29h 40m
2 stops
United Airlines Logo
6:10 am - 8:55 pm
SOF
-
BOI
23h 45m
2 stops
$747United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:16 pm - 10:45 pm
BOI
-
SOF
25h 29m
2 stops
United Airlines Logo
6:10 am - 11:38 pm
SOF
-
BOI
26h 28m
2 stops
$748United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:16 pm - 10:45 pm
BOI
-
SOF
25h 29m
2 stops
United Airlines Logo
6:05 am - 11:38 pm
SOF
-
BOI
26h 33m
2 stops
$749United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
6:25 am - 10:45 pm
BOI
-
SOF
31h 20m
2 stops
United Airlines Logo
1:45 pm - 9:11 pm
SOF
-
BOI
40h 26m
2 stops
$1,440United Airlines
Booking Insights

KAYAK's insights & trends for Boise to Bulgaria flights

Get data-powered insights and trends into flights from Boise to Bulgaria to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boise to Bulgaria?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boise to Bulgaria were found on Lufthansa ($735) and United Airlines ($747).

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Good to know

Cheapest flight$735
Flight from Boise to Sofia

FAQs - booking Bulgaria flights

  • How does KAYAK find such low prices on flights from Boise to Bulgaria?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Bulgaria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Bulgaria?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boise to Bulgaria is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Bulgaria?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boise to Bulgaria with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Bulgaria?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boise to Bulgaria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to Bulgaria

 
Need help choosing which airline to fly with from Boise to Bulgaria? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9289 reviews
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Both the WIFI and entertainment did not work for 2.5h

6.0 GoodAnonymous, Feb 2026
HNL - NRT
Read more United Airlines reviews

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Everything you need to know for your flight from Boise to Bulgaria

Information on your arrival and departure airports

Boise (BOI)