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Sofia

$587+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SOF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$587
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$645
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 September 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/13. 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 10/107:15 amGEG - SOF
2 stops29h 45mUnited Airlines
Tue 4/76:15 amSOF - GEG
2 stops25h 09mUnited Airlines
Deal found 9/13$636
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/11:47 pmGEG - SOF
2 stops19h 33mUnited Airlines
Fri 11/72:35 pmSOF - GEG
2 stops42h 54mUnited Airlines
Deal found 9/14$705
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/14:05 pmGEG - SOF
2 stops17h 15mMultiple Airlines
Fri 11/76:05 amSOF - GEG
3 stops24h 40mMultiple Airlines
Deal found 9/14$1,458

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 September 15, 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

Wed 3/11

1:45 pm-6:20 pm

2 stops19h 35m

Sofia

Wed 3/25

6:10 am-9:24 pm

2 stops24h 14m

$587

SpokaneSofia

GEG - SOF

GEGSOF

Spokane

Fri 10/10

7:15 am-11:00 pm

2 stops29h 45m

Sofia

Tue 4/7

6:15 am-9:24 pm

2 stops25h 09m

$636

SpokaneSofia

GEG - SOF

GEGSOF

Spokane

Sat 11/1

1:47 pm-6:20 pm

2 stops19h 33m

Sofia

Fri 11/7

2:35 pm-11:29 pm

2 stops42h 54m

$705

SpokaneSofia

GEG - SOF

GEGSOF

Spokane

Sat 11/1

4:05 pm-6:20 pm

2 stops17h 15m

Sofia

Fri 11/7

6:05 am-8:45 pm

3 stops24h 40m

$1,458

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Idaho to Sofia?

    For as low as $587, United Airlines can have you in Sofia from Idaho in 19h 35m. There are 5753 mi between Idaho and 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 $1,185). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$807Average$807FlexibilityNo cancel feeOn-time69%

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