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Sofia

$646+ Cheap flights from Idaho 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SOF
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Idaho to Sofia

Keep the following information in mind while searching for Idaho to Sofia flight deals. Data was last updated julio 31, 2025.

Round-trip from

$646
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$998
From Idaho to Sofia
Search Deals
Highest demand for flights based on searches. 59% potential increase in price ($2,081 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 59% potential price decrease ($537 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Idaho to Sofia

Cheapest flights from Idaho to Sofia
Explore the most affordable flight options available from Idaho to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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.
vie. 10/105:05 amGEG - SOF
2 stops31h 55mUnited Airlines
mar. 4/71:50 pmSOF - GEG
2 stops34h 44mUnited Airlines
Deal found 7/30$646
This Gurufare deal was found by Cheapflights users on 7/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/2712:27 pmBOI - SOF
2 stops20h 23mLufthansa
mié. 9/176:15 amSOF - BOI
2 stops25h 26mLufthansa
Deal found 7/30$714
This United Airlines deal was found by Cheapflights users on 7/31. 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.
mié. 9/242:13 pmBOI - SOF
2 stops23h 47mUnited Airlines
mié. 10/226:15 amSOF - BOI
2 stops25h 15mUnited Airlines
Deal found 7/31$724
This Air Canada deal was found by Cheapflights users on 7/30. 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.
mié. 9/248:20 amBOI - SOF
3 stops24h 30mAir Canada
mié. 10/222:05 pmSOF - BOI
3 stops30h 34mAir Canada
Deal found 7/30$1,427

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 julio 31, 2025.
Use the filters below to find and compare flights from Idaho to Sofia that are best for you.

Fly from

Idaho

Fly to

Sofia

Route

Depart

Return

Price

SpokaneSofia

GEG - SOF

GEGSOF

Spokane

vie. 10/10

5:05 am-11:00 pm

2 stops31h 55m

Sofia

mar. 4/7

1:50 pm-2:34 pm

2 stops34h 44m

$646

BoiseSofia

BOI - SOF

BOISOF

Boise Air Term. Gowen Fld

mié. 8/27

12:27 pm-5:50 pm

2 stops20h 23m

Sofia

mié. 9/17

6:15 am-10:41 pm

2 stops25h 26m

$714

BoiseSofia

BOI - SOF

BOISOF

Boise Air Term. Gowen Fld

mié. 9/24

2:13 pm-11:00 pm

2 stops23h 47m

Sofia

mié. 10/22

6:15 am-10:30 pm

2 stops25h 15m

$724

BoiseSofia

BOI - SOF

BOISOF

Boise Air Term. Gowen Fld

mié. 9/24

8:20 am-5:50 pm

3 stops24h 30m

Sofia

mié. 10/22

2:05 pm-11:39 am

3 stops30h 34m

$1,427

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Idaho to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Idaho 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.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Sofia

How much does it cost to fly round-trip from Idaho to Sofia?

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated julio 31, 2025.
Read reviews from past customers who have flown United Airlines, Air Canada, and Lufthansa from Idaho to Sofia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,851 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,275 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • What airport do you fly into for flights to Sofia from Idaho?

    Sofia (SOF), located 4.2 mi from the city center, is the airport you fly into when you book flights from Idaho to Sofia.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho 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.

  • What is the cheapest month to book a flight from Idaho to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Idaho to Sofia (average of $632). Flying from Idaho to Sofia in June is currently the most expensive (average of $1,187). 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.

See more FAQs

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Top airline flying from Idaho to Sofia

Discover the top airline that operate flights from Idaho to Sofia. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$807Average$807FlexibilityNo cancel feeOn-time69%

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