BOI - SOF

$575 Find Cheap Flights from Boise to Sofia

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 Sofia departing on 8/19. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Sofia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Sofia, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Boise to Sofia (BOI-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Sofia 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 Sofia

Tue, Aug 19 - Tue, Aug 26
Lufthansa Logo
12:27 pm - 11:00 pmBOI-SOF
25h 33m2 stops
Lufthansa Logo
6:00 am - 9:14 pmSOF-BOI
24h 14m2 stops
$575Lufthansa
Find Deal
Sun, Aug 17 - Tue, Aug 26
United Airlines Logo
12:39 pm - 11:00 pmBOI-SOF
25h 21m2 stops
United Airlines Logo
6:00 am - 9:14 pmSOF-BOI
24h 14m2 stops
$576United Airlines
Find Deal
Tue, Aug 19 - Mon, Aug 25
Lufthansa Logo
12:27 pm - 11:00 pmBOI-SOF
25h 33m2 stops
Lufthansa Logo
7:25 pm - 9:14 pmSOF-BOI
34h 49m2 stops
$586Lufthansa
Find Deal
Sun, Aug 17 - Mon, Aug 25
Lufthansa Logo
2:32 pm - 6:40 pmBOI-SOF
43h 08m2 stops
Lufthansa Logo
7:25 pm - 9:14 pmSOF-BOI
34h 49m2 stops
$591Lufthansa
Find Deal
Wed, Aug 20 - Mon, Aug 25
United Airlines Logo
7:45 am - 11:00 pmBOI-SOF
30h 15m2 stops
United Airlines Logo
6:00 am - 10:21 pmSOF-BOI
25h 21m2 stops
$626United Airlines
Find Deal
Thu, Aug 21 - Tue, Aug 26
United Airlines Logo
9:52 am - 5:50 pmBOI-SOF
22h 58m2 stops
United Airlines Logo
6:00 am - 9:14 pmSOF-BOI
24h 14m2 stops
$630United Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
Lufthansa Logo
2:42 pm - 6:40 pmBOI-SOF
42h 58m2 stops
Lufthansa Logo
7:25 pm - 9:14 pmSOF-BOI
34h 49m2 stops
$642Lufthansa
Find Deal
Fri, Aug 22 - Wed, Sep 17
 Logo
6:06 pm - 11:40 amBOI-SOF
32h 34m3 stops
 Logo
9:35 am - 6:50 pmSOF-BOI
42h 15m3 stops
$1,028
Find Deal
Wed, Aug 20 - Wed, Sep 17
 Logo
8:20 am - 11:40 pmBOI-SOF
30h 20m3 stops
 Logo
9:35 am - 6:50 pmSOF-BOI
42h 15m3 stops
$1,057
Find Deal
Sat, Aug 23 - Wed, Aug 27
Emirates Logo
12:27 pm - 2:25 pmBOI-SOF
40h 58m2 stops
Emirates Logo
3:25 pm - 10:41 pmSOF-BOI
40h 16m2 stops
$2,938Emirates
Find Deal
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KAYAK's insights & trends for Boise to Sofia flights

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

Which airlines provide the cheapest flights from Boise to Sofia?

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 Sofia were found on Lufthansa ($575) and United Airlines ($576).

Good to know

Cheapest flight$575
Flight from Boise to Sofia

When to book flights from Boise to Sofia

Are your dates flexible? Find out the best times to travel from Boise to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Sofia

  • What is the cheapest flight from Boise to Sofia?

    In the last 3 days, the lowest price for a flight from Boise to Sofia was $575 for a round-trip ticket.

  • Do I need a passport to fly between Boise and Sofia?

    A passport is required to fly from Boise to Sofia.

  • Which aircraft models fly most regularly from Boise to Sofia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Sofia?

    Star Alliance is the only airline alliance operating flights between Boise and Sofia.

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

    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 Sofia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Boise 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 Sofia?

    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 to Sofia with an airline and back to Boise with another airline. Booking your flights between Boise and SOF can sometimes prove cheaper using this method.

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

    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 to Sofia from Boise 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 Sofia

 
See real verified KAYAK customer reviews for airlines flying from Boise to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Sofia? 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 8852 reviews
7.3Comfort
7.0Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

10.0 ExcellentAndrew, Jul 2025IAH - LHR
Read more United Airlines reviews

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

online check in was not available so i had to get to airport extra early. The flight was delayed and my luggage was lost. I had an argument with the person behind me who wanted to keep her bag on the floor and not allow my seat to recline on a 9hr plus flight. So overall, lots and lots of areas for improvement.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Very rough getting into denver. my kid threw up it was so rough.

We were given vouchers we couldn’t use with a 5.5 hour delay

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

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

Information on your arrival and departure airports

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