$544+ 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
Jan 17 — Jan 241
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Sofia
Best flights from Idaho to SofiaDiscover carefully curated flight deals from Idaho to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
Discover carefully curated flight deals from Idaho to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
This Air France deal was found by Cheapflights users on 12/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:55 amGEG - SOF
2 stops19h 10mMultiple Airlines
Wed 3/257:00 amSOF - GEG
2 stops21h 59mMultiple Airlines
Deal found 12/16![Multiple Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 1/2910:15 amBOI - SOF
2 stops27h 30mUnited Airlines
Mon 2/26:10 amSOF - BOI
2 stops25h 47mUnited Airlines
Deal found 12/14![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 1/1512:24 pmGEG - SOF
2 stops24h 21mUnited Airlines
Mon 1/192:20 pmSOF - GEG
2 stops30h 24mUnited Airlines
Deal found 12/15![United Airlines logo]()
$551
Find flight deals from Idaho to Sofia
Keep the following information in mind while searching for Idaho to Sofia flight deals. Data was last updated December 18, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $544 (Air France) |
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 December 18, 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
9:55 am-2:05 pm
2 stops19h 10m
Sofia
Wed 3/25
7:00 am-7:59 pm
2 stops21h 59m
$544
BoiseSofia
BOI - SOF
BOISOF
Boise Air Term. Gowen Fld
Thu 1/29
10:15 am-10:45 pm
2 stops27h 30m
Sofia
Mon 2/2
6:10 am-10:57 pm
2 stops25h 47m
$545
SpokaneSofia
GEG - SOF
GEGSOF
Spokane
Thu 1/15
12:24 pm-10:45 pm
2 stops24h 21m
Sofia
Mon 1/19
2:20 pm-10:44 am
2 stops30h 24m
$551
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
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Related info for your journey
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Alternative routes for Idaho to Sofia
See prices for flight routes from nearby airports that may be better suited for you.
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 December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$645 | Average$998 | FlexibilityNo cancel fee | On-time69% |